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Petroleum Abstracts
Issue 201401
Jan04,2014


Table of Contents


GEOLOGY

table of contents list of publications

1177120 ALBERTA -- GEOLOGY
MODELING MIGRATIONAL PATHWAYS IN WASHOVER FANS USING ANALYSES OF MODERN FAN MORPHOLOGIES AND SUBSURFACE DATA; J.Hudock, L.Wood, P.Flaig and G.Massingill.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Washover fan (WOF) deposits are part of a larger group of highly heterolithic barrier and shoreline-margin deposits, which form notoriously hard-to-produce conventional and heavy oil reservoirs (e.g., vast quantities of hydrocarbons are typically stranded in these systems, steam breakthrough is unpredictable, etc.). For this study, we analyzed both modern and ancient WOF. Results were combined with a detailed examination of subsurface data (core, log, seismic and production history) from a relatively large, late Cretaceous WOF in the McMurray Heavy Oil Belt of Canada in order to develop an improved method for producing these prolific but complex reservoirs. A spatial analysis on 118 modern WOF employed satellite imagery to quantify various morphometric characteristics of WOF. Results show that WOF that resemble the classic model of a point-sourced, channelized, fan-like geometry are actually rare, and this model may be unsatisfactory for reservoir development plans. Contrary to the classic model, WOF predominantly occur as line-sourced, non-channelized features and typically do not extend to form back-barrier lagoon micro-deltas. (Original not available from T.U.)

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1177121 ANDES MT AREA -- GEOLOGY
SUBANDEAN SEGMENTATION AND ITS IMPACT ON HYDROCARBON EXPLORATION IN THE CENTRAL/NORTHERN ANDES; C.Macellari and W.Hermoza (Repsol Exploracion).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 13 pp)

Nine and a half billion barrels of oil equivalent (BBOE) have been discovered along the subandean thrust front extending from the Venezuelan Andes to southern Peru. The main factor controlling the distribution of oil fields along this front is the quality and distribution of source rocks and suitable kitchens. However, there is an overall imprint in the prospectivity marked by differences in tectonic styles. Six different zones with characteristic tectonic styles and exploratory potential are recognized in the northern and central Andes. (1) The Venezuelan Andes is dominated by transpressive deformation, the interaction with the Caribbean Plate to the north, and the inversion of a prexisting graben to the south along high angle basement imbricates. (2) The Llanos Foothills is characterized by the reactivation of a Mesozoic graben which originated mostly in a thin-skinned deformation. (3) The Putumayo and Oriente basins. (4) The Santiago and Huallaga basins display a complex interaction of thick- and thin-skinned tectonics associated to the reactivation of a Permo-Triassic rift by Neogene thrusting. (5) The northern Ucayali Basin is characterized by thick-skinned inverted structures. (6) The Madre de Dios and northern Beni basins, located in the southern Ucayall, display a thin-skinned thrust system and passive roof duplexes which propagated on Paleozoic detachments levels.

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1177122 ANDES MT AREA -- GEOLOGY
BASIN DEVELOPMENT, PROVEN PLAYS AND EXPLORATION POTENTIAL OF THE CENTRAL SUBANDEAN BASIN FROM THE MEGA-REGIONAL PERSPECTIVE; A.Belopolsky (BP Exploration).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177123 ANDES MT AREA -- GEOLOGY
OFFSHORE BASINS CHARACTERIZATION ALONG THE NORTHERN AND CENTRAL ANDES: IMPACT ON THE PETROLEUM SYSTEMS DEFINITION; W.Hermoza, E.Rintjani, N.Antich and M.Gutierrez.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The Pacific margin of the South American plate is occupied by offshore and onshore Tertiary basins, classically referred as forearc basins. Some of these basins are prolific hydrocarbon provinces in Latin America. The evolution of these basins was greatly controlled by oceanic plate subduction and related Andean uplift. Eastward subduction of the oceanic plate beneath the continental South American plate has been active for the last 200 Ma. It is well known that the subducting Pacific plate is irregular and made up by several ridges and fracture zones that separate blocks with different rate, angle and direction. This resulted in different deformation styles on the overriding plate which controlled the tectono-stratigraphic evolution and the petroleum system development. The most striking tectonic changes occur in the transition between the Northern and Central Andes (Peru and Ecuador). Around 4 BBOE of RR have been discovered in this zone (i.e., Talara, Tumbes, Sechura and Progreso). HC accumulations in this area are mostly related to Tertiary and probably Cretaceous source rocks. (Original not available from T.U.)

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1177124 ANDES MT AREA -- GEOLOGY
HYDROCARBON PROSPECTIVITY OF INTERMONTANE BASINS IN THE ANDEAN OROGEN; A.Disalvo, I.Inigo, D.Apreda and M.Iribarne.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Through the 8,000 kms extension of the Cordillera de los Andes there are several sedimentary basins within the present day orogen. Most of these are defined as intermontane foreland basins, formed among basement-cored uplifts in foreland settings. Tectonic load is the main subsidence driving mechanism in a first evolutionary stage, associated to inversion of Mesozoic rifts. A second stage is given by subsidence related to sediment load and compaction. Examples of this type of basins are the Upper Mag, Middle Mag, Cesar, Santiago, Huallaga, Metan, Uspallata, nirihuau, etc. In general they involve a multiepisodic sedimentary fill, comprising at least 4 sedimentary super-cycles that include a granitic or metamorphic basement, Paleozoic marine sediments, lacustrine or marine Mesozoic deposits related to rifting; Upper Cretaceous and Paleogene foreland deposits; and finally Neogene continental and eventually volcanic sediments strike slip related basins like Lower Mag are rare, as are the extensional bolsones of the Altiplano Boliviano-Argentino, or the Loncopue trough in the Cuenca Neuquina. (Original not available from T.U.)

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1177125 ANDES MT AREA -- GEOLOGY
GEOMECHANICAL CONTROLS ON FRACTURE DENSITY IN ANDEAN FOLD AND THRUST BELTS; J.M.Florez.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

In Andean fold and thrust belts, progressive hierarchical shearing and mechanical stratigraphy play a significant role in the distribution of fracture density. This conclusion is based on outcrop studies of Anticlines in Suesca (Colombia) and Abra-del-Condor (Bolivia), and complemented with observations of fracture systems using satellite images from Venezuela, Bolivia, and Chile. At Suesca, fracture patterns and density are described from selected pavement outcrops. High-density fracture corridors occur at different positions within the fold. At each location, significant contrast in fracture spacing is observed, varying from 0.3 to 1 m in high-density areas, and from to 3 to 20 m in low-density areas. Tilted fractures in the forelimb indicate that fracturing started at an early stage of folding. At Abra-del-Condor, faults and joints occur at different scales in a hierarchical fashion as a consequence of progressive shearing. The first generation is an orthogonal set of joints, symmetric to the fold axis. Fractures and subsidiary faults oblique to the fold axis are interpreted to be the result of shearing along the pre-existing orthogonal joint sets. (Original not available from T.U.)

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1177126 ANHUI -- GEOLOGY
LOWER TRIASSIC AND INDUAN-OLENEKIAN BOUNDARY IN CHAOHU, ANHUI PROVINCE, SOUTH CHINA; J.Tong and L.Zhao (China Univ Geosci, Wuhan).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.399-407, April 2011. (ISSN 1000-9515)

Since the West Pingdingshan Section in Chaohu was proposed as the candidate of the Global Stratotype Section and Point of the Induan-Olenekian boundary in 2003, the Lower Triassic of Chaohu has been extensively studied. The following are based on the studies on the Lower Triassic of Chaohu. (1) A continuous conodont zonation is established, which has become an important reference for Lower Triassic stratigraphic correlation over the world. (2) The First Appearance Datum of conodont Neospathodus waageni was suggested and has been basically accepted as the primary marker to define the Induan-Olenekian boundary. (3) A characteristic Lower Triassic excursion of carbon isotopes was brought to light and has been proven to be not only an excellent index for the stratigraphic correlation but also a unique indication for the perturbation of ecological environments in the aftermath of the end-Permian mass extinction. (4) A magnetostratigraphic sequence is constituted with a certain biostratigraphic control in the low-latitude region and it presents an important correlation to the Boreal sequence. (5) A cyclostratigraphic study provides an alternative method to constrain the age of the chronostratigraphic units. (6) A scheme of the Olenekian subdivision is recently suggested to define the boundary between the Smithian and Spathian Substages.

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1177127 APURE BARINAS BASIN -- GEOLOGY
NEW STRUCTURAL MODEL GENERATED FROM SURFACE DATA, SEISMIC AND WELLS FOR THE CENTRAL SOUTH ANDEAN FLANK, BARINAS SUB-BASIN, VENEZUELA [NUEVO MODELO ESTRUCTURAL GENERADO A PARTIR DE DATOS DE SUPERFICIE, SISMICOS Y DE POZOS PARA LA PARTE CENTRAL DEL FLANCO SURANDINO, SUBCUENCA BARINAS, VENEZUELA]; A.Goncalves, A.Sanchez, E.Moreno, H.Rojas, E.Patino, J.Mendoza, L.Hernandez, G.Sanchez and J.Fuentes (Petroleos Venezuela SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

The aim of this study was to reassess the elements associated with tectonic exploration prospects located in the Central South Andean flank, belonging to the Barinas Subbasin, by analyzing surface geology maps, 2D seismic data and well data. For the study, 26 structural sections were balanced and a three-dimensional geological model of the region was generated. Furthermore, seismic line D was restored to the top of the Eocene, allowing the regional structural evolution from the Eocene to the present to be defined. During the Early Eocene, deposition of the Gobernador Formation begins and precretaceous normal faults are reactivated. For the Late Eocene - Oligocene, the Paguey Formation is deposited and the Lara Nappe is emplaced from the Northwest, continuing the process of reactivation of preexisting faults. During the deposition of Parangula and Rio Yuca formations, in the Miocene, the Andean uplift begins, which is superimposed on the Paleogene structure and begins the process of inversion of old normal faults, resulting in large structures.

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1177128 APURE BARINAS BASIN -- GEOLOGY
STRUCTURAL CONFIGURATION OF THE BARINAS BASIN IN THE SOUTHERN ANDEAN FOOTHILLS, BARINAS, VENEZUELA [CONFIGURACION ESTRUCTURAL DE LA CUENCA DE BARINAS EN EL PIE DE MONTE SURANDINO, ESTADO BARINAS, VENEZUELA]; F.Bongiorno, N.Belandria, L.Gonzalez and R.Calderas (Los Andes Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

[For information only - meeting paper abstract]

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1177129 ARGENTINA -- GEOLOGY
BARREMIAN BIVALVES FROM THE HUITRIN FORMATION, WEST-CENTRAL ARGENTINA: TAXONOMY AND PALEOECOLOGY OF A RESTRICTED MARINE ASSOCIATION; D.G.Lazo and S.E.Damborenea (Buenos Aires Univ; La Plata Museum).. JOURNAL OF PALEONTOLOGY v.85, no.4, pp.719-743, July 2011. (ISSN 0022-3360)

The Cretaceous Huitrin Formation in west-central Argentina records the final connection of the Neuquen Basin to the Pacific Ocean. This formation is comprised of a variety of continental to marginal-marine sediments deposited behind an Andean volcanic arc under warm, arid paleoclimatic conditions. Here, we focus on a bivalve fauna from carbonate ramp deposits within the Barremian La Tosca Member of the Huitrin Formation. This fauna is very abundant and widely distributed within the basin but, surprisingly, it has not yet been studied in detail. In addition, paleoenvironmental affinities remain unresolved, with the fauna variously interpreted as having freshwater, brackish, and marine affinities. We studied the fauna’s taxonomy and paleoecology based on more than 500 specimens collected at 10 fossil localities in combination with new field observations. The bivalve assemblage was recorded from middle to outer carbonate ramp deposits and is composed of five taxa of marine affinity: Phelopteria huitriniana n. sp., Isognomon cf. I. nanus (Behrendsen), Placunopsis? pichi n. sp., Anthonya jarai n. sp., and Argenticyprina mulensis n. gen. n. sp.; the first three may be regarded as eurytopic and/or opportunistic.

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1177130 ARGENTINA -- GEOLOGY
SUBSTRATE ENTRAINMENT PROCESSES AND DEPOSITIONAL ARCHITECTURE OF AN EXHUMED SEISMIC-SCALE MASS TRANSPORT DEPOSIT, CHACAY MELEHUE, NEUQUEN BASIN, ARGENTINA; D.Hodgson, C.A.Jackson, R.Duller and Y.Spychala.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Mass transport deposits can entrain large pieces of substrate, and generate significant depositional relief that influences subsequent dispersal patterns of sediment gravity flows. Highly deformed Bathonian-to-Lower Callovian strata at Chacay Melehue, NW. Neuquen Basin, Argentina, offer a valuable insight into the emplacement processes and the influence depositional relief has on subsequent flow processes of a seismic-scale (>7 km long and up to 70 m thick), mass transport deposit (MTD). The correlation of marker horizons between measured sections (200-500 m spacing) permits the structural and depositional architecture of the MTD to be constrained. The areal extent and relatively persistent thickness of basal marker beds suggests that the MTD was deposited in a relatively low gradient setting. The overlying MTD has a highly sheared basal unit that displays ca 30 m of relief, before stepping up-stratigraphy to be concordant with the underlying stratigraphy. This surface is interpreted as the basal decollement to the overlying MTD; the downslope, inclined surface is interpreted as a steep, up-dip-facing toe-wall. (Original not available from T.U.)

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1177131 ATLANTIC OCEAN -- GEOLOGY
MARINE SOURCE ROCK RISK IN THE ANDEAN FORELAND AND ATLANTIC OCEAN MARGIN BASINS OF SOUTH AMERICA: THE USE OF PALAEOGEOGRAPHY AND PALAEO-EARTH SYSTEMS IN THE PREDICTIVE MODELLING OF SOURCE ROCK DEPOSITIONAL SPACE; J.P.Harris, A.Ashley, M.Bhattacharya, R.Crossley, C.Glover, J.Watson, N.Rudd, C.Watkins, M.Goodrich, P.Valdes et al.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The distribution of source rocks and the lateral variation in source quality are some of the main uncertainties for exploration in frontier basins. This information is also required for the assessment of potential shale gas and shale oil resources. To construct a predictive tool designed to address these problems, global Plate Wizard reconstructions were used as the basis for palaeogeographic mapping. Detailed palaeotectonics and palaeoenvironments maps were prepared. These base maps were compiled using a global database of palaeoenvironmental and lithofacies data, the legacy of over 30 years of petroleum geological studies and an equally extensive source rocks database. A novel method relating topography and bathymetry to plate tectonic environments was used in the construction of palaeodigital elevation models (DEM). The DEM were coupled with state-of-the-art palaeo-Earth systems models (UK Met Office HadCM3 palaeoclimate model) and an unstructured mesh model to simulate palaeotides (Imperial College, UK). The database also includes climate proxies that were used to test the veracity of modelling results. (Original not available from T.U.)

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1177132 AUSTRALIA -- GEOLOGY
STRUCTURAL ARCHITECTURE OF AUSTRALIA'S 4,000 KM LONG SOUTHERN RIFTED CONTINENTAL MARGIN; J.Totterdell, G.Gibson, A.Stacey, C.Mitchell, M.Morse, G.Nayak and N.Kusznir (Geoscience Australia; Liverpool Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1427-1; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 2 pp; Abstract only)

[For information only - meeting paper abstract]

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1177133 BAHIA SUL ESPIRITO SANTO B -- GEOLOGY
THE SIGNIFICANCE OF RAMPS AND FLATS OF MASS TRANSPORT DEPOSITS (MTD) AS KINEMATIC INDICATORS; K.Omosanya and T.M.Alves (Cardiff Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-10; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Ramps and flats of mass transport deposits are commonly studied on seismic profiles as kinematic indicators. In this study, ramps and flats on the margin of salt diapirs are mapped in a high quality 3D seismic volume from SE. Brazil (Espirito Santo Basin). Our aim is to test how differently oriented ramps and flats at the basal shear surface of specific MTD interval can be used to infer the direction of mass flow. Statistical analysis of thickness variation of the mass transport deposit within depocentre created by ramps and flats was estimated along slope in order to elucidate the mode of emplacement of the associated MTD. Sliding at the plane of failure is enhanced by seafloor faulting and nearby halokinesis. Ramps significantly contribute to local changes in gradient at the basal shear surfaces, as they are linked to promontories (Type I) and paleo-fault scarps (Type II). (Longer abstract available)

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1177134 BAHIA SUL ESPIRITO SANTO B -- GEOLOGY
PROVENANCE OF A BLOCKY DEBRIS FLOW DEPOSIT IN MID-CONTINENTAL SLOPES (ESPIRITO SANTO BASIN, SE. BRAZIL); K.O.Omosanya and T.M.Alves (Cardiff Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-13; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

The provenance of an Oligocene-Miocene mass transport deposit (MTD) in mid-continental slope Espirito Santo Basin, SE. Brazil, was analysed using seismic facies and measurement of preserved blocks. Our method, applied to a high-quality 3D seismic volume from the Espirito Santo Basin (SE. Brazil), provides information on the location of source areas of MTDs, their bulk composition and styles of disaggregation in relation to their transporting distances. Whenever blocks of strata are found, their orthogonal axes are measured to estimate parameters such as maximum projection sphericity index (MPSI), oblate prolate index (OPI), and ratio of short and intermediate axes (ds/di). Eighty-two blocks mapped in the MTD have no preferred orientation: they have compact-bladed, bladed, elongate, very-bladed, very-platy and very-elongate shapes. Average block thickness, area coverage and volume are ca 128.82 m, 0.802 sq km and ca 0.196 cu km with mean MPSI, OPI, flatness and elongation ratios of 0.398, 0.991, 0.19989 and 0.59861. In addition, the presence of equant blocks with c/a>0.4 and c/b>0.65 ratios are typical of proximal areas in MTDs, reflecting small transporting distances. Thus, the new method used in this research provides an alternative technique to kinematic indicators for determining the provenance of blocky debris flow deposits. (Longer abstract available)

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1177135 BETIC CORDILLERA -- GEOLOGY
NEW CLUES FOR THE PLATE TECTONIC ASSEMBLY OF THE BETIC CORDILLERAS FROM AGE CONSTRAINTS OF PRE-TRIASSIC METAMORPHIC SEQUENCES; J.J.Esteban, J.M.Tubia, J.Cuevas, N.Vegas, S.Sergeev and A.Larionov (Pais Vasco Univ; VSEGEI).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1886; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177136 BIOCHEMISTRY -- GEOLOGY
MICROBIAL INDUCED MINERAL FORMATION IN THE DEEP SUBSURFACE BIOSPHERE; J.A.McKenzie and C.Vasconcelos (ETH Zurich).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14145; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177137 BLACK SEA -- GEOLOGY
DEEPWATER TERTIARY SEDIMENTATION AND HYDROCARBON PROSPECTIVITY IN THE WESTERN BLACK SEA DEEP OFFSHORE: A PROLIFIC HYDROCARBON PROVINCE OF THE FUTURE?; J.Floodpage, M.Morice, Y.Philippe, C.Popa and P.Mateo.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Deepwater exploration of the Black Sea started in the 1990s, culminating in the drilling between 2005 and 2011 of five exploration wells, all within the Turkish sector. While these wells remain tight, no findings of significant hydrocarbons have been announced, raising questions about the quality/presence of Tertiary reservoirs and/or the existence of a functioning petroleum system. However, the 2012 Domino dry gas discovery (reported as up to 3 TCF recoverable resources) in Romanian deepwaters has refocused attention on the western part of the Black Sea, promising potentially better reservoir quality. TOTAL, with its partners OMV and REPSOL, were recently awarded the Bulgarian deepwater Han Asparuh permit covering 14,220 sq km of the Black Sea. This area is located immediately to the south of the Domino discovery. The 3D and 2D seismic stratigraphic evaluation has revealed the presence of extensive Oligocene-Lower Miocene 'Maykop' turbidite fan deposits, probably sourced from the granitic/gneissic Rhodope/Strandja and Balkanide highlands, via canyons located within the Kamchia Depression. (Original not available from T.U.)

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1177138 BOLIVIA -- GEOLOGY
SEQUENCE STRATIGRAPHY OF THE SILURIAN-DEVONIAN FORMATIONS IN AN EXPLORATION AREA OF THE SUBANDEAN STRIP, BOLIVIA [ESTRATIGRAFIA SECUENCIAL DE LAS FORMACIONES DEL SILURICO-DEVONICO EN UN AREA EXPLORATORIA DE LA FAJA SUB-ANDINA, BOLIVIA]; A.Laya (Petroleos Venezuela SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 9 pp; In Spanish)

The aim of this study was the standardization of the stratigraphic nomenclature of the formations of the Silurian-Devonian interval wells in the area belonging to the Tarija basin in the subandean Bolivia and the defining third-order depositional sequences that allowed for more accurate correlations of the reservoir and seal rocks present in the area.

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1177139 BOLIVIA -- GEOLOGY
COMPARISON OF THREE STRUCTURAL MODELS OF THE SUBANDEAN FOLD BELT, SOUTH BOLIVIA, AND ITS IMPLICATION IN HYDROCARBON EXPLORATION [COMPARACION DE TRES MODELOS ESTRUCTURALES DE LA FAJA PLEGADA DEL SUBANDINO-SUR DE BOLIVIA Y SU IMPLICACION EN LA EXPLORACION DE HIDROCARBUROS]; L.Ramirez and M.Nunez (Petroleos Venezuela SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 9 pp; In Spanish)

The Subandean fold belt of southern Bolivia is defined by subparallel structural trends with north-south direction. The studied area is the last mountain chain in the orographic system. Deformation in this area is represented by a combination of two structural styles. Three models were used to assess the Aguaragüe area.

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1177140 BRAZIL -- GEOLOGY
THE COMPLEX SETTING OF DEEPWATER ESPIACUTERITO SANTO BASIN, BRAZIL: IMPLICATIONS FOR HYDROCARBON ACTIVITY; T.Husmo, A.A.Castro, O.Marcussen, M.Janocko, F.G.de Souza, E.Araujo, F.O.Ramalho, G.Basta, R.F.Correia, R.Sampaio et al.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Great water depth, complicated geology, disappointing drilling results and problematic seismic data imaging has challenged exploration of the deepwater Espiacuterito Santo basin, Brazil. We will present recent understanding on the larger scale controls on post-salt clastic deposition in a terrain dominated by gravity-induced salt tectonics. In other presentations, the shelf-to-slope depositional controls and processes have been discussed, and we will here demonstrate the variety of settings that occasionally make post-salt play models work, and other times not. From regional studies it is clear that the shelf margin of this passive margin basin has been essentially stable through time, and clastic material has been transported form shelf to basin floor by two major and some minor transport systems, delivering massive amounts of sands to essentially the same location in the basin. The presence of Aptian salt along this passive continental margin triggered listric faulting and movements of raft blocks already from the late Albian time, leaving significant gaps in the strata very similar to what is observed from the offshore Angola conjugate margin. (Original not available from T.U.)

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1177141 BRAZIL -- GEOLOGY
RESERVOIR DISTRIBUTION IN A PONDED, MASS-TRANSPORT DOMINATED CHANNEL-LOBE COMPLEX, ESPIACUTERITO SANTO BASIN, OFFSHORE BRAZIL; M.Janocko, M.Warchol, M.Dykstra, T.Husmo, K.Bakke and F.Hadler-Jacobsen.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Frequency decomposition of 3D seismic-reflection data from the upper slope of Espiacuterito Santo Basin, offshore Brazil, is used to study the development and reservoir distribution of a Neogene deep-water channel-lobe complex. The complex is confined to an elongate salt-withdrawal basin and consists of three channel-lobe systems with two separate entry points. The distal part of the complex also interfingers with the margin of a large mass-transport fairway which is diverted into the minibasin from yet another direction. The lobe deposits are typically fed by a tributary network of channels and sheet-like mass-transport deposits (MTD), and comprise intercalated turbidites with MTD at a range of scales. Turbidite deposits are recognized on seismic frequency color-blends as channel- and lobe-like features with a consistent texture, whereas MTD typically show a blocky pattern and geometries resembling frondescent splays, straight chutes, tabular sheets and tongue-shaped mounds. Besides the interplay of turbidity currents and mass-wasting processes, the formation of the lobe complex seems to have been further complicated by syn-sedimentary halokinesis, salt-induced faulting, and local mass-wasting of the minibasin margins. (Original not available from T.U.)

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1177142 BRAZIL -- GEOLOGY
CENOZOIC BURIAL AND EXHUMATION OF THE INTERIOR HIGHLANDS OF BRAZIL: PALAEO-THERMAL EVIDENCE FROM THE EOCENE FONSECA FORMATIONS, MINAS GERAIS; P.Japsen, P.F.Green, P.R.Cobbold, L.G.Sant'Anna and J.M.Bonow (Denmark Greenland Geol Sur; Geotrack International; Rennes I Univ; Sao Paulo Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14207; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177143 BRAZIL -- GEOLOGY
STRUCTURE OF THE UPPER CRUST OFF THE SOUTHEAST COAST OF BRAZIL: INDICATIONS FOR MANTLE ORIGIN OF A GIANT HYDROCARBON FIELD; V.Hamza (Observatorio Nacional).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-13789; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177144 BRAZIL -- GEOLOGY
INFLUENCE OF FAULTING ON IRON-OXIDE CONCRETION AND LIESEGANG BAND PATTERNS IN POORLY LITHIFIED SANDSTONES OF THE BARREIRAS FORMATION, NE. BRAZIL: INFERENCES FOR FLUID FLOW IN CLASTIC RESERVOIRS; F.Balsamo, H.Bezerra, F.Storti and M.Veira (Roma III Univ; Rio Grande Norte Fed Univ; Parma Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1813; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177145 BRITISH COLUMBIA -- GEOLOGY
LATE TRIASSIC BIVALVIA (CHIEFLY HALOBIIDAE AND MONOTIDAE) FROM THE PARDONET FORMATION, WILLISTON LAKE AREA, NORTHEASTERN BRITISH COLUMBIA, CANADA; C.A.McRoberts (SUNY, Cortland).. JOURNAL OF PALEONTOLOGY v.85, no.4, pp.613-664, July 2011. (ISSN 0022-3360)

The Upper Triassic of the Williston Lake area of northeastern British Columbia is represented by a nearly continuous series of fossil-rich sediments that were deposited in the Western Canadian Sedimentary Basin in an offshore mid-paleolatitude setting on the western margin of cratonic Pangea. The fossils in this report come primarily from the Upper Carnian - Upper Norian Pardonet Formation, which has been the subject of numerous paleontologic studies on ammonoids and conodonts, yet has received little attention with regard to its bivalve fauna. Fossil bivalves belonging to the thin-shelled bivalve genera Halobia, Eomonotis, and Monotis dominate the benthic macrofauna and occur within unique shell accumulations that are interpreted to represent oxygen-controlled monospecific paleocommumities that have undergone little post-mortem transportation. Systematic analyses of more than 1,000 individual bivalve specimens resulted in the identification of 25 species-rank taxa, a majority of which belong to the pterioid genus Halobia and the pectinoid genera Eomonotis and Monotis.

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1177146 CARBONATE RESERVOIR -- GEOLOGY
NATURALLY FRACTURED CARBONATE ROCK DEPOSITS [APLICACION DE UNA METODOLOGIA PARA EVALUAR YACIMIENTOS NATURAMENTE FRACTURADOS EN ROCAS CARBONATICAS]; D.Suarez L., E.Pineda, N.Moreno, D.Mateus, L.Mogollon, J.F.Zapata, A.Castillo and C.Ruiz (Ecopetrol SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 5 pp; In Spanish)

A multidisciplinary analysis in the evaluation of fractured carbonate formations has resulted in a methodology that seeks to identify potential fracture zones that may favor the accumulation and flow of hydrocarbons; this is applicable to future wells that target sites of naturally fractured carbonate rocks, a methodology useful even during drilling. The first tool used in the discovery of a naturally fractured area of interest is spectral analysis of the U/K (uranium/potassium) relationship, indicating the susceptibility of the rock to fracturing. Petrographic zoning in predominantly grain-supported rocks (preferably grainstone, packstone including wackstone) is the second aspect to be integrated into the evaluation determining the presence of a naturally interval fractured. The third tool applied is the analysis of the orientation of fractures with respect to the principal stress. The fourth tool used is the integration of basic drill core data in order to evaluate the petrophysical properties of these intervals and to determine whether each of these areas showed characteristics of porosity and permeability. It was found that the best petrophysical properties are related to zones of predominantly grain-supported rocks.

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1177147 CASABE OIL FIELD -- GEOLOGY
EXPLORATION POTENTIAL IN DEVELOPED AREAS: CASABE - PENAS BLANCAS POTENTIAL FOR NEW RESERVES [AREAS CON POTENCIAL EXPLORATORIO EN ZONAS DESARROLLADAS: CASABE - PENAS BLANCAS POTENCIAL PARA NUEVAS RESERVAS]; J.Peralta-Vargas, W.Gambaretto, L.Martinez Uribe, A.Suter, L.Marquez and E.Lozano G. (Schlumberger; Ecopetrol).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 2 pp; In Spanish; Abstract only)

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1177148 CAUCA PATIA BASIN -- GEOLOGY
GEOLOGIC SURVEY AND PROSPECTIVITY OF THE CAUCA-PATIA BASIN, COLOMBIA [EVALUACION GEOLOGICA Y PROSPECTIVIDAD DE LA CUENCA CAUCA-PATIA, COLOMBIA]; G.Hincapie, J.M.Jaramillo, V.Rodriguez, R.Aguilera, S.Ortiz, J.Restrepo, J.P.Marin, H.Bermudez, A.Pardo et al. (Caldas Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

The Cauca-Patia Basin (CCP) is an intermountain depression with an area of approximately 13,000 sq km, including central and western Cordilleras of Colombia. Hydrocarbon exploration in the CCP is still in an early stage, with only five wells drilled on a prospect close to 7,500 sq km, and which until now has not been tested for any petroleum system. Although results have not been encouraging, the geological evaluation available presents exciting new possibilities.

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1177149 CENTRAL EUROPE -- GEOLOGY
EUSTATIC CONTROL OF CONODONT MIGRATION AND PHYTOPLANKTON DISTRIBUTION PATTERNS IN THE ANISIAN OF THE PERI-TETHYS BASIN; A.E.Goetz (Darmstadt Tech Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1750; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177150 CHELIF BASIN -- GEOLOGY
TRANSPRESSIVE TECTONICS ALONG A MAJOR E–W CRUSTAL STRUCTURE ON THE ALGERIAN CONTINENTAL MARGIN: BLOCKS ROTATIONS REVEALED BY A PALEOMAGNETIC ANALYSIS; M.E.M.Derder, B.Henry, S.Maouche, B.Bayou, M.Amenna, J.Besse, M.Bessedik, D.Belhai and M.Ayache (CRAAG).. TECTONOPHYSICS v.593, pp.183-192, 5/8/2013. (ISSN 0040-1951)

The present paleomagnetic study has been conducted on volcanic rocks of Miocene age outcropping on the northern border of the Neogene Chelif basin, northwest Algeria. The results show the existence of numerous small tectonic blocks, of probable size around 0.5 to 0.6 km, which underwent clockwise rotations. The magnitude of these rotations is often important and of different strengths according to the studied sites. That evidences the effect of a major narrow dextral E–W crustal shear structure. The location of this structure on the northern border of Chelif basin is coherent with the geodynamical context of this basin, which corresponds to a wide zone affected by clockwise rotations of large blocks limited by such major faults. The present paleomagnetic results confirm that the relative convergence motion between the Africa and Eurasia plates could be interpreted as a transpressional tectonic deformation model with block rotations along the Algerian continental margin. (c2013 Elsevier B.V.)

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1177151 CHINA -- GEOLOGY
DETRITAL ZIRCON DATING OF MESO- AND NEOPROTEROZOIC ROCKS IN NORTH CHINA AND ITS IMPLICATIONS; L.Gao, P.Liu, C.Yin, C.Zhang, X.Ding, Y.Liu and B.Song (Chinese Academy Geol Sci).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.271-282, April 2011. (ISSN 1000-9515)

New dates from Meso- and Neoproterozoic strata contribute to the recently defined Precambrian stratigraphical timescale of China agreed by the Subcommission on the Precambrian System, and the National Commission on Stratigraphy of China on November 24, 2009. (1) The age range of the Changcheng System, including the Changzhougou, Chuanlinggou, Tuanshanzi and Dahongyu formations, has been constrained to 1.8–1.6 Ga. (2) The Jixian System, including the Gaoyuzhuang, Yangzhuang, Wumishan, Hongshuizhuang and Tieling formations, has been constrained to 1.6–1.4 Ga. (3) An as-yet-unnamed (undefined) system (1.4–1.0 Ga) is only developed in the Xiamaling Formation at the Jixian section, Tianjing. (4) The Qingbaikou System, including the Luotuoling and Jing'eryu formations, has been constrained to 1.0–0.78 Ga. (5) The Nanhuan System ranges between 780–635 Ma, and the Sinian System is within 635–542 Ma. However, according to a series of SHRIMP U-Pb dates from the late Precambrian in the Jiangnan Orogen Belt in South China Platform, the constrained strata will be redefined as in the upper part of the Qingbaikou System. To aid global geodynamics, it is useful to denote a late Precambrian section with unified, precise and high-precision chronological dating; this is here defined in North China Block and Jiaoliao-Korean Block.

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1177152 CHINA -- GEOLOGY
RECENTLY RATIFIED AND PROPOSED CAMBRIAN GLOBAL STANDARD STRATOTYPE SECTION AND POINTS; S.Peng, X.Zhu, J.Zuo, H.Lin, Y.Chen and L.Wang (Nanjing Inst Geol Palaeont; Henan Inst Geol Survey; Hunan Bureau Geology; Zhejiang Inst Geol Survey).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.296-308, April 2011. (ISSN 1000-9515)

This paper briefly summarizes an officially ratified Global Standard Stratotype-section and Point (GSSP) and a proposed GSSP for global stages of the Cambrian System. The Luoyixi section near Luoyixi town, Guzhang, northwestern Hunan is ratified as the boundary stratotype for the base of the global Guzhangian Stage, which is the upmost stage of an unnamed series termed provisionally as Cambrian Series 3. The GSSP position lies 121.3 m above the base of the Huaqiao Formation in the section, coinciding with the first appearance of the cosmopolitan agnostoid trilobite Lejopyge leavigata. The Duibian B section at Duibian village, Jiangshan, western Zhejiang, is proposed as the boundary stratotype for the base of the proposed global Jiangshanian Stage that is the second stage of the Furongian Series. The proposed GSSP position lies 108.12 m above the base of the Huayansi Formation in the section, coinciding with the first appearance of the cosmopolitan agnostoid trilobite Agnostotes orientalius. This horizon is also with the first appearance of the cosmopolitan polymerid trilobite Irvingella angustilimbata.

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1177153 CHINA -- GEOLOGY
BIOSTRATIGRAPHIC AND CHEMOSTRATIGRAPHIC CORRELATION FOR THE BASE OF THE MIDDLE ORDOVICIAN BETWEEN YICHANG AND WESTERN ZHEJIANG AREAS, SOUTH CHINA; Y.Zhang, A.Munnecke, X.Chen, J.Cheng and X.Liu (Nanjing Inst Geol Palaeont; Erlangen Nuremberg Univ; Res Inst Petrol Explor Dev).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.320-329, April 2011. (ISSN 1000-9515)

The base of the Middle Ordovician (i.e., Dapingian Stage) has been defined at the first appearance datum (FAD) of conodont Baltoniodus? triangularis at Huanghuachang, Yichang, China, but the precise correlation of the boundary to regions of other facies remain to be resolved. Herein we review the biostratigraphy and chemostratigraphy of the Huanghuachang Global Standard Stratotype-Section and Point (GSSP) section, and present our latest stratigraphic work on the nearby Chenjiahe section in Yichang, and the Hengtang Quarry section, Jiangshan, Zhejiang, which is regarded as representative of slope facies. The conodont and graptolite biostratigraphy as well as chemostratigraphy of the Chenjiahe section indicate that the base of the Middle Ordovician also falls within the graptolite Azygograptus suecicus Zone, and coincides with a high or maximum δ13C value within a minor positive carbon isotope excursion, suggesting that the base boundary can be readily recognized across the entire Yangtze Gorges area. The integrated graptolite and conodont biostratigraphy and chemostratigraphy of the Hengtang section, Jiangshan, indicates that the basal boundary probably falls within the graptolite Isograptus caduceus imitatus Zone that overlies the Azygograptus suecicus Zone, and coincides with a remarkable drop of δ13C. This difference indicates that a multi-disciplinary approach is critical to identify the base boundary in those regions where the Baltoniodus? triangularis is absent.

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1177154 CHINA -- GEOLOGY
CORRELATION OF THE TOURNAISIAN-VISEAN BOUNDARY BEDS; H.Hou, X.Wu and B.Yin (Chinese Academy Geol Sci; Guizhou Inst Geology).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.354-365, April 2011. (ISSN 1000-9515)

With the definition and adoption of the global stratotype section and point (GSSP) for base of the Visean in China, the newly synthesized zonations and correlation of some significant fossil groups, including foraminifera, conodont, coral and brachiopoda, near the Tournaisian-Visean boundary beds are reviewed, which help in the recognition of the boundary in various sedimentary facies. The occurrence of two physical events, one pre- and one post-, in the Tournaisian-Visean boundary is emphasized, which allows for recognition of the position close to the Tournaisian-Visean boundary in the field. The regional correlation in southern China and international correlation throughout Eurasia around the Tournaisian-Visean boundary beds with the GSSP is proposed.

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1177155 CHINA -- GEOLOGY
LITHOLOGIC BOUNDARIES IN PERMIAN POST-GLACIAL SEDIMENTS OF THE GONDWANA-AFFINITY REGIONS OF CHINA: TYPICAL SECTIONS, AGE RANGE AND CORRELATION; X.Jin, H.Huang, Y.Shi and L.Zhan (Chinese Academy Geol Sci; Nanjing Univ).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.373-386, April 2011. (ISSN 1000-9515)

In Southwest China, Gondwana-affinity Permo-Carboniferous deposits are known to occur in the Northern Himalayas, the Lhasa Block and the South Qiangtang Block, the Baoshan Block and the Tengchong Bock. The three-fold clastic successions, namely diamictite–pebbly mudstone–dark mudstone and shale are commonly interpreted as representing deposits of glacial–deglacial–post-glacial periods in marine environments. Deposits, for example, the Dingjiazhai Formation in the Baoshan Block, the Kongshuhe Formation in the Tengchong Block, the Yongzhu Group and the Poindo Group in the Lhasa Block, are all succeeded by carbonate deposits. This marks a significant change from post-glacial clastic environment to a carbonate environment. Available paleontological data show that the change from post-glacial clastic environment to carbonate environment took place in the Baoshan, Tengchong and Lhasa Block at the beginning of the Artinskian. The carbonate environment in the Baoshan Block was spoiled by the eruption of the Woniusi Basalts, and in the Xainza area of the Lhasa Block was shortly replaced by clastic environment until the Kungurian. In the northern Himalayas, limestones began to occur in the Late Permian in a fluctuating manner.

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1177156 CHINA -- GEOLOGY
PROGRESS, PROBLEMS AND PROSPECTS ON THE STRATIGRAPHY AND CORRELATION OF THE KUNGURIAN STAGE, EARLY PERMIAN (CISURALIAN) SERIES; Y.Wang, J.Wang, J.Chen, W.Wang, S.Shen and C.M.Henderson (Nanjing Inst Geol Palaeont; Calgary Univ).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.387-398, April 2011. (ISSN 1000-9515)

The Kungurian Stage is one of the three remaining stages of the Permian that is not yet defined at the base by a global stratotype section and point (GSSP). The candidate section at the Yuryuzan River in the Urals yields few conodonts, and contains non-marine sediments near the boundary. The search for a suitable, continuous marine succession is a principal task for the Subcommission on Permian Stratigraphy. The Leonardian, with its type area in the southwest U.S., and in objective stratigraphic succession directly beneath the basal Guadalupian Roadian Stage, has priority to serve as a subseries of the Lower Permian. However, distinct provincialism limits the correlation of Leonardian fossil zones with the fusuline-based Tethyan timescale. Conodonts can be correlated in many important regions on opposite sides of Pangea, yet contradictions arise when relating conodont zones with fusuline and ammonoid zones. The different taxonomic philosophies are highly suspected for the cause of the conflicts, but also there are different conodonts from the type Roadian in West Texas. Given that the Pamir and Darvaz in central Asia are difficult to access, further investigations should focus on South China, where abundant fusulines and ammonoids facilitate correlation throughout the Tethyan region, and where conodonts permit correlation with North America.

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1177157 CHINA -- GEOLOGY
CHINESE CONTINENTAL PALEOCENE-EOCENE BOUNDARY AND ITS CORRELATION; Y.Wang, Y.Tong and Q.Li (Chinese Academy Sciences).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.443-451, April 2011. (ISSN 1000-9515)

Recent paleontological, paleomagnetic and carbon isotopic investigations have provided new evidence supporting placement of the Chinese terrestrial Paleocene–Eocene boundary at the base of the Lingcha Formation in the Hengyang Basin, Hunan Province, and within the upper part of the Nomogen Formation in the Erlian Basin, Inner Mongolia. Based on mammalian and ostracod biostratigraphic data, the boundary can also be roughly correlated with the contacts between the Baoyue and Huayong formations in the Sanshui Basin of Guangdong, the Qingjiang and Xinyu formations of Jiangxi, the Fourth Formation of the Funing Group and the Dainan Formation in northern Jiangsu, and the Dabu and Shisanjianfang formations in the Turfan Basin of Xinjiang.

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1177158 CHOCO BASIN -- GEOLOGY
EXPLORATION POTENTIAL IN THE ATRATO AND SAN JUAN BASINS IN THE CHOCO-PANAMA ARC IN WESTERN COLOMBIA [POTENCIAL EXPLORATORIO DE LAS CUENCAS ATRATO Y SAN JUAN EN EL ARCO CHOCO-PANAMA, EN EL OCCIDENTE COLOMBIANO]; G.Bedoya, F.Cediel, I.C.Restrepo-Correa, C.Cuartas, C.Mora, G.Montenegro, J.Mojica and R.Ceron (EAFIT Univ; Agencia Nac Hidrocarburos).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 2 pp; In Spanish; Abstract only)

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1177159 COLOMBIA -- GEOLOGY
STRUCTURAL STYLE AND DECOLLEMENT LEVELS IN THE LLANOS ORIENTALES BASIN (COLOMBIA); I.Moretti, J.C.Mondragon, J.C.Garzon, G.Bosio and J.M.Daniel (CEPSA; Cepcolsa; Inst Francais du Petrole).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp)

The Llanos, the northern part of the Andes current foreland of Colombia, is affected by light but complex deformation. In addition to the eastward pinchout of the series above the crystaline basement, the seismic data shows numerous normal faults, often east-dipping, compressive features affecting the Tertiary sequence near the thrust belt and a lot of faults within the Paleozoic. The shaly sequences are numerous and thick enough to produce disharmonies. The relationship between the Paleozoic structures and the more recent ones is open to discussion, as well as the age of the normal faults, their eventual strike slip component and the effect of the current compression. Since hydrocarbon discoveries are related to structural traps, excepting Rubiales, the understanding of this deformation has a crucial exploration impact. Based on our extensive new 3D seismic data and a large review of the existing 2D lines we will illustrate our current knowledge. Comparison with analogue models of transtension followed by compression has been done especially to illustrate the kinematic evolution of the normal fault pattern.

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1177160 COLOMBIA -- GEOLOGY
THE UPPER NEOGENE SEQUENCE STRATIGRAPHY IN THE SOUTHWEST OFFSHORE COLOMBIAN CARIBBEAN [ESTRATIGRAFIA SECUENCIAL PARA EL NEOGENO SUPERIOR EN EL SUROESTE OFFSHORE DEL CARIBE COLOMBIANO]; A.R.Porras and J.L.Rubiano Ortiz (Ecopetrol SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 9 pp; In Spanish)

The Neogene sedimentary section in Southwestern Colombian Caribbean (Offshore) is divided into four third-order depositional sequences related to the evolution of the Sinu River paleodelta and the Magdalena River. The sequence I (Late Miocene Basal) corresponds to claystones of deep marine environments (bathyal). The sequence II (Late Miocene) has three environments, a south clastic sedimentation associated with outer shelf environments, one in South Central including sediment deposited in an upper bathyal environment with the presence of submarine channels, and the third to the north, which shows clastic sediments deposited in a marginal marine environment or inner shelf. The sequence III (Pliocene) comprises a complex deposition, represented by clastic sedimentation in shallow marine environments in middle platform outside the south and in the central-north marine clastic deposits on the inner shelf possibly caused by low energy turbidity currents. The sequence IV (Pleistocene-Holocene) is associated with shallow marine clastic deposits and paralic inner shelf deposits to the southeast, and in the central part in a platform half. The sequences presented three sandy systems.

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1177161 COLOMBIA -- GEOLOGY
PALYNOSTRATIGRAPHIC INFORMATION ANALYSIS OF THE OIL INFORMATION BANK (BANCO DE INFORMACION PETROLERA - BIP) AND OTHER SOURCES: A STRATEGY FOR REVIEWING THE PAST AND A PLAN FOR THE FUTURE EXPLORATION OF THE COUNTRY [ANALISIS DE LA INFORMACION PALINOESTRATIGRAFICA DEL BANCO DE INFORMACION PETROLERA (BIP) Y DE OTRAS FUENTES: UNA ESTRATEGIA PARA REVISAR EL PASADO Y PLANEAR EL FUTURO EXPLORATORIO DEL PAIS]; C.Cuartas, C.Jaramillo, A.Arjona, A.Pardo, S.Da Silva, F.de la Parra, M.Romero, P.Mejia and M.Paez (Smithsonian Tropical Inst).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

The National Hydrocarbons Agency contracted with the Smithsonian Tropical Research Institute (STRI) to conduct two projects: (1) the inventory and assessment palynological information of sedimentary basins in Colombia and (2) the palynological zonation for the Maestrichtian, eastern Cordillera of Colombia. These projects are of great importance, since the former allows the current state of knowledge of palynology as a tool in hydrocarbon exploration and the second uses a methodology suggested for the palynological future. For the first project selected information available in the PPE and other published sources was reviewed, evaluated and later revised taxonomic and selection of important biostratigraphic species. All this information is introduced into a database and the biostratigraphic succession of events was built using constraint optimization. For the second project seven sections were sampled in the northeast region of Colombia and 320 samples palynological were analyzed. This information, together with that already published, was used for analysis using the quantitative biostratigraphic techniques of graphic correlation and constraint optimization. The inventory and analysis of the information obtained so far leads to the conclusion that the palynological zoning does not reach the resolution and quality that the current oil industry requires to reduce exploration risk.

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1177162 COLOMBIA -- GEOLOGY
LATERAL AND VERTICAL CONTINUITY OF THE MUGROSA FORMATION SANDSTONE IN THE LLANITO FIELD [CONTINUIDAD LATERAL Y VERTICAL DE LAS ARENISCAS DE LA FORMACION MUGROSA EN EL CAMPO LLANITO]; A.Ortiz, G.Meza and E.Casadiego (Ecopetrol-ICP; Santander Industrial Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

For years Ecopetrol and industry partners produced from the Mugrosa Formation, drilling a series of wells without a better understanding of the area and connecting channels of the sand. The following report presents the lateral and vertical continuity of some Mugrosa Formation channels in the Llanito and northern Casabe fields, with the information obtained from wells, electric logs and field data. The lower Oligocene age Mugrosa Formation, formed by fluvial deposits in an environment that varies between meandering-anastomosing, is one of the most important formations in the exploitation of hydrocarbons in Colombia.

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1177163 COLOMBIA -- GEOLOGY
EVALUATION OF HYDROCARBON PROSPECTIVITY OF THE LOS CAYOS BASIN BY MEANS OF GEOLOGICAL AND GEOPHYSICAL ANALYSIS [EVALUACION DE LA PROSPECTIVIDAD DE HIDROCARBUROS DE LA CUENCA DE LOS CAYOS MEDIANTE ANALISIS GEOLOGICO Y GEOFISICO]; L.A.Castillo Lopez, G.Vargas Cuervo, R.C.Aguilera and D.M.Jimenez (Colombia Nacional Univ; RA Geologia; Agencia Nac Hidrocarburos).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 5 pp; In Spanish)

Los Cayos, corresponding to a basin of marine character, is located on the northwest Colombian Caribbean plate and has some surface geology studies in areas such as the islands of San Andres and Providence. Plus, there are some reports of banks and atolls where the composition and morphology are described. The geophysical survey was conducted from well information, seismic and bathymetry data. Seismic stratigraphic interpretation was obtained from a seismic grid of a total of 2,100 km of 2D seismic sections, and the records of two wells (Miskito Miskito-1 and -2). In addition to the geophysical data, geological information was available from previous studies.

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1177164 COLOMBIA -- GEOLOGY
FROM THEORY TO PRACTICE - INTEGRATING STATIC AND DYNAMIC DATA FOR THE DEFINITION OF THE DEVELOPMENT OF COMPLEX FIELDS: PAUTO FIELD, EASTERN FOOTHILLS OF THE CORDILLERA ORIENTAL, COLOMBIA [DE LA TEORIA A LA PRACTICA - INTEGRACION DE DATOS ESTATICOS Y DINAMICOS PARA LA DEFINICION DEL DESARROLLO DE CAMPOS COMPLEJOS: CAMPO PAUTO, PIEDEMONTE ORIENTAL, CORDILLERA ORIENTAL DE COLOMBIA]; J.C.Alzate, H.Aguirre, R.Linares, P.Galindo and G.Penuela (BP Colombia; BP UK).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 6 pp; In Spanish)

The eastern foothills of the Colombian Eastern Cordillera are characterized by complex geology where poor quality seismic imaging generates high geological uncertainty for well placement and optimal management of the reservoir. The Pauto field is a thrust sheet that forms part of a triangle zone. In the particular case of the Pauto sheet, five wells were drilled with separations between 1.5 and 9 km, which combined with limited production data and low porosity/permeability reservoirs make it difficult to establish its connection via interference testing and to define the best choice for the monetization of resources already discovered. This article presents the methodology used in the integration of 3D seismic interpretation, structural modeling, dynamic geological data (pressures and fluids) and numerical modeling in fields with high uncertainty developed by BP. This integration is illustrated by the static and dynamic data obtained by the FRA5pw well in late 2008.

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1177165 COLOMBIA -- GEOLOGY
GEOLOGIC MAPPING OF AN AREA OF THE SAN JACINTO FOLD BELT [CARTOGRAFIA GEOLOGICA DE UN AREA DEL CINTURON PLEGADO DE SAN JACINTO]; J.Herrera, H.Bermudez, M.Alfonso, J.Calderon, A.Pardo and A.Lozano.. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

The Geological Technical Consulting firm (ATG) conducted for the National Hydrocarbon Agency (ANH) 1:25,000 scale geological mapping with stratigraphic columns, and paleontological and petrographic analysis, of an area of 172 sq km, located south of San Jacinto Fold Belt. The results of this study forced reevaluation of the prospectivity of the area.

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1177166 COLOMBIA -- GEOLOGY
NEW CONCEPTS FOR THE TECTONO-STRATIGRAPHIC MODEL OF THE SEDIMENTARY BASINS IN THE WESTERN COLOMBIAN CARIBBEAN [NUEVOS CONCEPTOS PARA EL MODELO TECTONO-ESTRATIGRAFICO DE LAS CUENCAS SEDIMENTARIAS EN EL OCCIDENTE DEL CARIBE COLOMBIANO]; L.M.Duarte, C.A.Esteves, P.V.Zalan, H.Antolinez and J.C.Mosquera (Petroleo Brasileiro SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 11 pp; In Spanish)

The basins of offshore Colombia have been the object of many studies over the past four years; this effort, besides increasing the amount of high-quality data available, has improved the understanding of the evolution of these basins. This article focuses mainly in the western area of offshore Colombia, where at least four structural provinces can be recognized: (1) the northeastern part of the Bahia subbasin, (2) the Barranquilla fold belt, (3) the Abanico subbasin, and (4) to the south of the Sinu deformed belt. The structural evolution of these provinces is related to the interaction between the South American, Caribbean, Nazca and Cocos tectonic plates.

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1177167 COLOMBIA -- GEOLOGY
HORIZONTAL WELL PLACEMENT IN THIN PAY ZONE AND HIGH-PERMEABILITY HEAVY-OIL RESERVOIR IN RUBIALES AND QUIFA FIELD; A.Florez Anaya, Y.Araujo Paz, R.Lavado Quinones, H.Zamora Guevara and S.Dacol Fuentes.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Rubiales and Quifa Field, a heavy-oil field (API Gravity 12.3) is located in Llanos Orientales basin of Colombia in South America. the field consists of one sandstone reservoirs of Tertiary, Carbonera Formation-Areniscas Basales. The reservoir is highly heterogeneous, thinly bedded, unconsolidated with high viscosity and strong aquifer support. The field is on production since July 1981 and the current oil production is 270,000 bpd. Horizontal wells were considered the best solution for improving the well productivity in those cases with thinly bedded, heavy-oil fields with objectives for tapping the bypassed oil and delaying the water production while controlling the sand production due to low drawdown pressure and increased exposure to the reservoir. The placement of the producer horizontal wells has been optimized in the Rubiales and Quifa Fields in locations where the geological uncertainty is high due to low correlation between vertical wells, low information density and low bed thickness of the sandstone to drill, by implementing the use of the azimuthal resistivity log, which allows for real-time mapping while drilling up to a distance of 20 feet and drilling pilot hole to plan the horizontal trajectory. (Original not available from T.U.)

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1177168 COLOMBIA -- GEOLOGY
KEY EXPLORATION UNCERTAINTIES AND THE PETROLEUM POTENTIAL OF THE DEEPWATER CARIBBEAN, OFFSHORE COLOMBIA; B.R.Frost, S.Mueller, I.Barany and M.A.P.Taborda.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The Magdalena River and its tributaries drain an area covering over 400,000 sq km. From Miocene to present, the river has built a delta and deepwater fan that covers an area of 180,000 sq km and is up to 16 km thick. Numerous onshore oil and gas seeps and mud volcanoes are present throughout the area. Offshore seabed fluid expulsion features are common and deepwater piston coring is reported to have turned up good evidence of oil and gas seepage. Numerous onshore and near shore wells have encountered oil and gas shows but to date only modest size oil and gas accumulation have been found onshore and only one sizable gas field called Chuchupa-Ballena (ca 5 TCF) has been found in shallow water near the coastline. A probabilistic approach was used to assess the predicted resource range of the deepwater Western Caribbean play. Sparse 2D can be tied back to a DSDP well 200 km offshore that shows some Cretaceous source rock potential. DHI seen on the seismic data suggest potential trap size and reservoir volumes could be huge and these data were used to determine a P01 field size for the play. (Original not available from T.U.)

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1177169 COLOMBIA -- GEOLOGY
EVOLUTION OF THE BAHIA BASIN: EVIDENCE FOR VERTICAL-AXIS BLOCK ROTATION AND BASIN INVERSION AT THE CARIBBEAN PLATE MARGIN, OFFSHORE NORTHERN COLOMBIA; P.A.Galindo and L.Lonergan.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The Bahia Basin is located in the northwest corner of South America where a complex history of subduction, accretion and transpression is ongoing since Cretaceous times. The Bahia Basin is located just offshore from major strike-slip fault systems that affect northern Colombia and lies behind the toe of the modern accretionary wedge, where the Caribbean Plate is being subducted obliquely beneath South America. This study uses a high-quality 3D-PSTM seismic volume, regional 2D seismic reflection lines, together with borehole data from one exploratory well drilled within the area of the 3D seismic volume. This study shows the structural styles associated with the evolution of the Bahia Basin which helps to understand the complex array of structures observed in a transpressive setting, and highlights the use of 3D seismic reflection data to test models of vertical-axis block rotation and basin inversion. This has a direct implication in the hydrocarbon exploration of basins along this type of plate boundary, and particularly in the understanding of basin evolution along the margin between the Caribbean and South American plates. (Original not available from T.U.)

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1177170 COLOMBIA -- GEOLOGY
THE CENTRAL SEGMENT OF THE EASTERN CORDILLERA (COLOMBIA): REJUVENATING AN OLD EXPLORATION FRONTIER; I.Gyorfi, S.Passos Giraldo and A.Gonzalez.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The Eastern Cordillera (EC) of Colombia is bounded to the West by the Magdalena Valley and to the East by the Llanos Basin--the two most prolific hydrocarbon provinces of Colombia. The EC has been the subject of extensive regional-scale structural studies. The main focus of this study is to establish a workflow to re-evaluate the prospectivity of the region. In the first step, six regional lines were constructed using legacy seismic and surface geology. Thorough seismic reprocessing and interpretation of these transects was followed by structural balancing to validate the interpretation. These transects have been integrated with potential field (gravity and magnetic) data, and calibrated with available well data. Subsequently, they were the input to a regional study addressing burial history, and hydrocarbon generation / expulsion. Areas with the highest exploration potential were selected for two 3D surveys. Simultaneously with the 3D seismic acquisition, detailed geological mapping was performed, and integrated in seismic processing and interpretation. The complex structural play requires high-quality imaging techniques, which involve both time (PSTM) and depth (PSDM) domains. (Original not available from T.U.)

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1177171 COLOMBIA -- GEOLOGY
PALEOZOIC TECTONICS AND BASIN EVOLUTION ALONG THE NORTHWESTERN SOUTH AMERICAN MARGIN: INSIGHTS FROM DETRITAL-ZIRCON U-Pb GEOCHRONOLOGY; M.Ibanez-Mejia, J.Ruiz, M.G.De Freitas, A.Mora and A.Mora.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Paleozoic sedimentary sequences of northern South America have the potential of being important oil- and gas-producing horizons, and are recently becoming the focus of active resource exploration by the energy industry. However, given the prolific character of the Meso-Cenozoic plays in the region, the Paleozoic systems have commonly been overlooked and our knowledge about the regional basin configuration and its evolution with time is still very limited. In this contribution, we present new detrital-zircon U-Pb geochronological results from Paleozoic and inferred Neoproterozoic (meta)-sedimentary units that outcrop in the Quetame and Floresta Cordilleran massifs, as well as from deeply buried but coeval clastic sequences that have been drilled below the Colombian Llanos foreland basin. Our new geochronological constraints clearly show that the pre-Devonian stratigraphy of the Cordillera is not allochthonous to South America as previous hypotheses propose, but instead represents a remobilized Neoproterozoic to Lower Paleozoic passive-margin sequence that was developed in very close proximity to the Amazonian margin of NW. Gondwana. (Original not available from T.U.)

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1177172 COLOMBIA -- GEOLOGY
UNCONVENTIONAL EXPLORATION POTENTIAL OF THE COLOMBIAN BASINS: PERSPECTIVES FROM REGIONAL GEOLOGY AND STRUCTURAL EVOLUTION; L.A.Jensen, F.Sanchez-Ferrer, E.Pliego Vidal, C.Goudy and V.Kertznus.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The results of the 2012 Ronda Colombia and renewed acreage positioning in the onshore arena by multiple companies highlight the potential of self-sourced to hybrid unconventional resource plays in the Colombian basins. Unconventional prospectivity is underpinned by the presence of thick and laterally extensive source rocks: the Upper Cretaceous La Luna Formation and the underlying Lower Cretaceous Basal Carbonates (sensu lato), both comprising primarily Type II/IIS marine shales and carbonates. This Cretaceous succession forms one of the region’s most prolific hydrocarbon systems. Superimposed on these world-class source rocks, however, is the Colombian basins' complex tectono-stratigraphic evolution, which can significantly impact unconventional exploration and commercial viability. Dynamic interaction between the South American, Pacific, and Caribbean plates provided the framework for these basins to form and has a first-order regional control, both spatially and temporally, on key petroleum system elements and the ultimate location and size of sweet spots. (Original not available from T.U.)

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1177173 COLOMBIA -- GEOLOGY
CHARACTERIZATION OF A COMPLEX DEEPWATER MARGIN: STRUCTURAL-DOMAIN DEFINITION IN THE COLOMBIAN CARIBBEAN OFFSHORE AND ITS IMPLICATIONS; S.Johnson and M.Mora-Glukstad.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The Colombian Caribbean deepwater margin is a frontier exploration province with significant, albeit unproven, hydrocarbon potential. Renewed interest in the deepwater margin was highlighted in Colombia Ronda 2012 as the majority of the open acreage was licensed by exploration companies. The Colombia deepwater margin is located at the convergence of the Caribbean and South American plates. Due to the evolution and interplay of these tectonic provinces there were multiple episodes of tectonism from Early Cretaceous to recent times. This resulted in the formation of the South Caribbean Deformed Belt (SCDB) which is considered the main deepwater prospective target of the margin or in its immediate vicinity. Characterizing and understanding the structural complexity within the SCDB is therefore essential to be able to accurately assess the main elements of the petroleum systems from source rock presence, trap and reservoir. As such, a regional study to define the structural elements of the deepwater offshore was undertaken. Data availability is limited in the deepwater with sparse regional 2D seismic data and no wells. (Original not available from T.U.)

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1177174 COLOMBIA -- GEOLOGY
INTRODUCTION OF OFFSHORE OIL DEVELOPMENT IN DEEP WATER [INTRODUCCION AL DESARROLLO DE HIDROCARBUROS COSTA AFUERA EN AGUAS PROFUNDAS]; M.Chaverra (BP Exploration).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

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1177175 COLOMBIA -- GEOLOGY
EXPLORATION POTENTIAL OF THE TUMACO BASIN [POTENCIAL EXPLORATORIO DE LA CUENCA TUMACO]; G.Bedoya, F.Cediel, M.I.Marin, I.C.Restrepo, D.Tovar, H.Duque, C.Mora and R.Ceron (EAFIT Univ; Agencia Nac Hidrocarburos).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

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1177176 COLOMBIA -- GEOLOGY
DEPOSITIONAL MODEL FOR THE UNE FORMATION (ALBIAN-CENOMANIAN), CORDILLERA ORIENTAL, COLOMBIA [MODELO DEPOSITACIONAL PARA LA FORMACION UNE (ALBIANO-CENOMANIANO), CORDILLERA ORIENTAL, COLOMBIA]; C.Zavala, M.Arcuri, M.De Freitas and A.Mesa (GCS Argentina; HOCOL).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

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1177177 COLOMBIA -- GEOLOGY
GEOTHERMAL MAP OF COLOMBIA (2009) [MAPA GEOTERMICO DE COLOMBIA (2009)]; C.A.Vargas J., C.Alfaro, L.A.Briceno, I.Alvarado and W.Quintero (Colombia Nacional Univ; Agencia Nac Hidrocarburos; INGEOMINAS).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 5 pp; In Spanish; Abstract only)

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1177178 COLOMBIA -- GEOLOGY
DESIGN OF SYNTHETIC SONIC RECORD (RSS) USING NEURAL NETWORKS: COLORADO FIELD APPLICATION [DISENO DEL REGISTRO SONICO SINTETICO (RSS) MEDIANTE EL USO DE REDES NEURONALES: APLICACION CAMPO COLORADO]; C.A.Ayala Marin and C.C.Garcia Yela (Santander Industrial Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 2 pp; In Spanish; Abstract only)

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1177179 COLOMBIA -- GEOLOGY
INVENTORY, INTERPRETATION AND ASSESSMENT OF THE GEOLOGICAL, GEOCHEMICAL AND THE GEOPHYSICAL INFORMATION BELONGING TO THE CAYOS BASIN; G.Vargas Cuervo, L.A.Castillo and R.Aguilera (Colombia Nacional Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

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1177180 COLOMBIA -- GEOLOGY
TRANSPRESSION AND ITS IMPACT ON THE TECTONIC HISTORY AND ON THE EXPLORATION POTENTIAL OF NORTHWESTERN COLOMBIA; L.Ardila and L.Diaz (Ardilex Inc; Ariana Ltda).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

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1177181 COLOMBIAN BASIN -- GEOLOGY
SUBSIDENCE AND TECTONIC ENVIRONMENT IN THE NORTHWESTERN COLOMBIA BASIN DURING THE EOCENE-MIOCENE [SUBSIDENCIA Y AMBIENTE TECTONICO EN LA ZONA NOROESTE DE LA CUENCA COLOMBIA EN EL INTERVALO EOCENO-MIOCENO]; D.F.Barrera Pacheco, E.Alfaro Sabogal, M.A.Naranjo, N.Jaimes, A.Moncada, J.Monsegny and W.M.Agudelo (EOS-DTH Ltda; EAFIT Univ; Santander Industrial Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 7 pp; In Spanish)

The variety of tectonic environments is related to the interaction of different plates such as Caribbean Cocos, Nazca and South America. It has been proposed that the tectonic environment from the Late Cretaceous to Miocene in the east of Mono Rise was that of a passive margin, with the possible generation of its major structures 75-80 Ma ago in the Late Cretaceous and 40-50 Ma ago, in the Early Eocene. During the Neogene to Recent the environment has been collisional. However, in the Deformed Belt area of the Southern Caribbean, the Colombia Basin appears to be of the forearc. From a backstripping 1D model using well and seismic data, it was determined that the northwestern part of Colombia Basin, west of Mono Rise, has presented a typical tectonic forearc environment from the Middle Eocene, possibly associated to the Arc de Costa Rica - Panama and the movement of the Caribbean plate to the east. It was also determined that the major structures in this area could have formed about 35 Ma ago, during the Late Eocene, and the last 5 Ma ago, during the Pliocene, at which times abrupt changes in subsidence curves were observed.

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1177182 COMPACTION (GEOLOGY) -- GEOLOGY
X-RAY IMAGING DURING CAPILLARY IMBIBITION: A STUDY ON HOW COMPACTION BANDS IMPACT FLUID FLOW IN BEHTHEIM SANDSTONE; A.Pons, D.Christian, J.Fortin, S.Stanchits and J.M.Mengus (ENS; Cergy Pontoise Univ; GeoForschungsZentr Potsdam; IFP Energies Nouvelles).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1454-1; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177183 CROATIA -- GEOLOGY
RAPID MORPHOTYPE REPLACEMENT TRIGGERED BY EXTRINSIC FACTORS IN MIOCENE LAKE MOLLUSKS FROM THE DINARIDE LAKE SYSTEM (SINJ BASIN, SE. CROATIA); T.Neubauer, O.Mandic and M.Harzhauser (Vienna Museum).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1712; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177184 CRUSTAL STRUCTURE -- GEOLOGY
ON THE ROLE OF LITHOSPHERE-ASTHENOSPHERE TOPOGRAPHY IN GEODYNAMICS; E.Timoshkina and V.Mikhailov (Russian Academy Sciences; Globe Inst Physique).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1614; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177185 DENMARK -- GEOLOGY
MICROPALAEONTOLOGICAL RESPONSE TO CRETACEOUS OCEANIC ANOXIC EVENTS (JEAN BAPTISTE LAMARCK MEDAL LECTURE); M.B.Hart (Plymouth Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14172; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177186 EASTERN CORDILLERA -- GEOLOGY
HYDROCARBON POTENTIAL OF THE FORMATIONS OF THE BASAL CALCAREOUS GROUP IN A SECTOR OF THE EASTERN CORDILLERA, PROVINCE OF SANTANDER, COLOMBIA; L.A.Delgado Blanco and J.S.Luna Osorio.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The current research was performed to study the hydrocarbon potential of Lower Cretaceous rocks, also known as Basal Calcareous Group, to which belong the Rosablanca, Paja and Tablazo formations. In this study, they emerge in the East zone of the Eastern Cordillera in Colombia. First, in the Rosablanca Formation, exist three types of facies, including micritic limestone facies, biomicrite limestone facies and shales facies. In second place, relating to the Paja Formation, are two types of facies, including micritic limestone facies and shales facies. In third place, in the Tablazo Formation, are two types of facies, including micritic limestone facies and shales facies. Finally, it is considered that this area may have limited interest for unconventional reservoirs of shale gas type, because some data can overcome the dry gas window with elevated Tmax, which would one lead to think that organic matter has been completely burned. (Original not available from T.U.)

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1177187 EASTERN PLAINS AREA -- GEOLOGY
A HYDRODYNAMIC EVALUATION OF THE SOUTH SECTOR OF THE EASTERN PLAINS [EVALUACION HIDRODINAMICA DE UN SECTOR AL SUR DE LOS LLANOS ORIENTALES]; D.E.Suarez Landazabal and J.A.Rodriguez.. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

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1177188 EAST MEDITERRANEAN SEA -- GEOLOGY
INCIPIENT CONTINENT-CONTINENT COLLISION BETWEEN THE ERATOSTHENES SEAMOUNT AND CYPRUS / EASTERN MEDITERRANEAN; C.Huebscher, G.A.Dehghani, A.Ehrhardt, J.Hall, M.Jegen, J.Mechie and M.Weber (Hamburg Univ; Bundesan Geowiss Rohstoffe; Newfoundland Memorial Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1857; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177189 ELECTRICAL ANISOTROPY -- GEOLOGY
ELECTRICAL ANISOTROPY: DIMENSIONALITY IMPRINTS IN MAGNETOTELLURIC RESPONSES AND EFFECTS IN ISOTROPIC INVERSION; A.Marti, P.Queralt, J.Ledo and C.Farquharson (Barcelona Univ; Newfoundland Memorial Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14056; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177190 EQUATORIAL ATLANTIC OCEAN -- GEOLOGY
PACING OF MIDDLE EOCENE CLIMATE DURING THE MIDDLE EOCENE CLIMATE OPTIMUM AND THE CHRON C19r EVENT: NEW RESULTS FROM THE EXPANDED ODP SITE 1260 IN THE TROPICAL WESTERN ATLANTIC; T.Westerhold and U.Roehl (Bremen Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-13714; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177191 EQUATORIAL ATLANTIC OCEAN -- GEOLOGY
DEEPWATER EXPLORATION IN THE OFFSET MARGINS OF THE EQUATORIAL SOUTH ATLANTIC; R.Fainstein and W.Mohriak.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The Equatorial Margins of the South Atlantic are predominantly offset margins, the result of shear motions that marked the Equatorial Atlantic since early rifting. These margins follow the morphology imprint of the offset shift among mid-ocean ridge crests in the order of 2,000 km. It is expressed in the West Africa coast re-entrance into the Gulf of Guinea, and also remarkably seen along the trace of volcanic extrusions of the North Brazilian Ridge. Regional geological and geophysical data indicate that this entire shear rift system followed closely the morphology of older continental structural trends, mainly of high-grade metamorphic rocks. The regional geophysical appraisal of the Northern Brazil and Guyana's upper continental margins, when compared with the offshore Ivory Coast and Liberia margins, establish the important concepts concerning the nature of these of sheared margins. Magnetic maps from conjugate margins display trends with similar wavelengths, and these are oriented normal to the respective coast lines. We suggest they represent magnetic sources that have remained intact during the Pan-African, Eburnean and Liberian thermo-tectonic events. (Original not available from T.U.)

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1177192 FAR EAST -- GEOLOGY
GEODYNAMIC MODELS AND OIL AND GAS POTENTIAL OF BASINS OF FAR EAST RUSSIA AND SOUTHEASTERN ASIA; V.A.Ignatova (All Russia Research Inst).. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.5, pp.77-85, 2010. (ISSN 0016-7894; In Russian)

This article gives a brief description of Mesozoic-Cenozoic evolution of the continental margin of Asia. From analysis of geodynamic evolution of the region, three large groups of oil and gas bearing and potentially oil and gas bearing sedimentary basins are outlined: (1) continental paleorifts and overrift depressions; (2) passive continental paleomargins; (3) active continental margins, island arc, marginal seas (subduction). The first two groups were formed due to divergence of lithosphere plates, and the third due to their convergence. The structure, formation history and oil and gas prospects of basins of these groups are considered, basins of Russia and countries of Southeastern Asia are compared. In spite of considerable predominance of oil and gas potential of Southeastern Asia as a result of confinement to centre of sedimentary basins at intersection of continental margins of different type, it is concluded that a possible increase exists of resource density of Russian Far East in conditions of increasing exploration activity.

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1177193 GALICIA BANK -- GEOLOGY
WHERE, WHEN, AND HOW DOES THE CONTINENTAL CRUST THIN IN A HYPER-EXTENDED RIFTED MARGIN: INSIGHTS FROM THE IBERIA MARGIN; E.Sutra and G.Manatschal (IPGS-EOST).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1756-3; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177194 GAS SHALE -- GEOLOGY
DIGITAL ROCK PHYSICS STUDY OF ORGANIC-RICH FACIES IN MISSISSIPPIAN GAS SHALE; J.M.Florez, J.Walls and J.De Vito.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

This study of organic-rich shale, based on three wells with significant contrast in performance, shows that well productivity in gas shale resources can be related to mineralogical composition and elastic properties. This digital rock physics analysis was carried out on shale samples selected using log and core data from wells with different thermal maturity, burial depth, petrophysical properties and gas productivity. The results show that the more productive well has more silica-rich organic facies with a higher proportion of porous organic matter (POM), while the less productive well has more clay-rich organic facies with a lower proportion of POM. The proportion of POM can be related to silica content, compaction, and/or thermal maturity. Micro-scale digital images show important differences in the fabric of silica-rich and clay-rich organic shales. Digital images of silica-rich organic facies locally show a delicate fabric of randomly oriented clay platelets associated with abundant POM. In contrast, clay-rich organic facies have a more laminated fabric with aligned clay platelets and a lower proportion of POM. Our data also suggest that compaction and thermal maturity play a role on preservation of POM. (Original not available from T.U.)

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1177195 GEOLOGIC MODEL -- GEOLOGY
METHODOLOGY FOR GENERATING MODELS FROM SEDIMENTOLOGICAL INFORMATION RECORDS FMI, DSI, AND SEISMIC DATA IN PETREL(TM) [METODOLOGIA PARA LA GENERACION DE MODELOS SEDIMENTOLOGICOS A PARTIR DE INFORMACION DE REGISTROS FMI, DSI Y DATOS SISMICOS EN PETREL(TM)]; F.Nino and F.Contreras (Ecopetrol; Schlumberger DCS).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 2 pp; In Spanish; Abstract only)

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1177196 GREENLAND -- GEOLOGY
EPISODIC THERMAL AND BURIAL/EXHUMATION HISTORIES ALONG PASSIVE MARGINS REVEALED BY AFTA [APATITE FISSION TRACK ANALYSIS] DEMAND AN EXPLANATION; P.F.Green, I.R.Duddy, P.Japsen, J.Bonow and J.Chalmers (Geotrack International; Denmark Greenland Geol Sur).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14109; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177197 GUIZHOU -- GEOLOGY
A POTENTIAL GLOBAL STANDARD STRATOTYPE-SECTION AND POINT OF THE MOSCOVIAN STAGE (CARBONIFEROUS); X.Wang, Y.Qi, L.Lambert, Z.Wang, Y.Wang, K.Hu, W.Lin and B.Chen (Nanjing Inst Geol Palaeont; Texas Univ, San Antonio).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.366-372, April 2011. (ISSN 1000-9515)

Conodonts and fusulinids are the two most widely used biotic groups for subdividing and correlating Bashkirian and Moscovian strata. The definition of the base of the Global Moscovian Stage is undecided because there are many disagreements among existing boundary definition proposals, each of which has disadvantages. Declinognathodus donetzianus is easily recognized but somewhat limited in its paleogeographic distribution. Idiognathoides postsulcatus is slightly more widespread, but it is less easily identified and its occurrences may be diachronous from region to region. Diplognathodus ellesmerensis is easily recognized and even more widespread, but it is usually rare and its ancestry is not adequately known. The Naqing Section of South Guizhou, South China contains diverse conodont evolutionary lineages among different taxa, including Idiognathoides, Idiognathodus, Diplognathodus, Neognathodus, Gondolella and Mesogondolella. There are numerous transitional forms in almost every lineage of the Naqing section, which shows that the prospects for South China to play a critical role in determining the basal Moscovian Stage definition are good.

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1177198 GUIZHOU -- GEOLOGY
CONODONT BIOSTRATIGRAPHY AND AGE DETERMINATION OF THE LOWER-MIDDLE TRIASSIC BOUNDARY IN SOUTH GUIZHOU PROVINCE, CHINA; J.Yao, Z.Ji, L.Wang, Y.Wang, Z.Wu, D.Liu, G.Wu, J.Zhang and S.Li (Chinese Academy Geol Sci).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.408-420, April 2011. (ISSN 1000-9515)

Lower–Middle Triassic strata of different types, from platform to basin facies, are well developed in Southwest China. This is favorable for the study of the Olenekian–Anisian boundary and establishing a stratotype for the Qingyan Stage. Based on research at the Ganheqiao section in Wangmo county and the Qingyan section in Guiyang city, Guizhou province, six conodont zones have been recognized, which can be correlated with those in other regions. There exists one nearly 6-m thick vitric tuff bed at the bottom of the Xinyuan Formation in the Ganheqiao section, which is usually regarded as a lithologic symbol of the Lower–Middle Triassic boundary in South China. The zircon age of this tuff is a directly measured zircon U-Pb age of the Lower–Middle Triassic boundary. The Ganheqiao section in Wangmo county can therefore provide an excellent section through the Lower–Middle Triassic because it is continuous, the evolution of the conodonts is distinctive and the regionally stable distributed vitric tuff near the Lower–Middle Triassic boundary can be regarded as a regional key isochronal layer. This section can be regarded not only as a standard section for the establishment of the Qingyan Stage in China, but also as a reference section for the GSSP of the Lower–Middle Triassic boundary.

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1177199 GUYANA -- GEOLOGY
FRONTIER EXPLORATION IN THE GEORGETOWN BLOCK, GUYANA, SOUTH AMERICA; A.Kean, J.Colmenares, P.Eisner and C.Preston (Repsol).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 6 pp)

Working in frontier exploration areas usually results in sparse quantities of available geological and geophysical (G&G) data. This is certainly the case in Guyana, located in northern South America. Guyana is located at the southern terminus of the North Atlantic where the rifting episode in Middle Jurassic time was subsequently overwritten by the break-up and drifting of West Africa from northern South America in Middle Albian time. The impact of two distinct rift and drift episodes makes for a complicated geologic history. Repsol is the operator of two blocks in two countries in Guyana's Basin, Block 30 Suriname and the Georgetown Block in Guyana of which the latter is the focus of this paper. This paper is based on Repsol efforts to maximize the probability of geological and geophysical (Pg&g) success for a frontier exploration project in the offshore deepwater area of Guyana, S.A. The project is ongoing, and this is an outline of our approach to evaluating an area pre-drill. Repsol is hopeful that with this 3D dataset we will be able to reduce the risk of finding hydrocarbons in order to recommend the drilling of a wildcat well.

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1177200 HUNAN -- GEOLOGY
EARLY MESOZOIC INTRACONTINENTAL XUEFENGSHAN BELT, SOUTH CHINA: INSIGHTS FROM STRUCTURAL ANALYSIS OF POLYPHASE DEFORMATION; Y.Chu, M.Faure, W.Lin and Q.Wang (Chinese Academy Sciences; Orleans Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1792; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177201 IRAN -- GEOLOGY
RHEOLOGY OF LARGE-SCALE ZAGROS FOLDING; F.Mouthereau and P.Yamato (Pierre & Marie Curie Univ; Rennes I Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-13838; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177202 JAPAN -- GEOLOGY
PARAMETER DETERMINATION IN A DEEP COASTAL SEDIMENTARY BASIN BY SINGLE-WELL (PUSH-PULL) TESTS; K.Hebig, N.Ito, T.Scheytt and A.Marui (Berlin Univ; NEWJEC Inc; Japan Geological Survey).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1408; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177203 JAPAN SEA -- GEOLOGY
BACKARC BASINS OPENING, CONTRIBUTIONS FROM SLAB RETREAT, MANTLE FLOW AND INTRACONTINENTAL STRIKE-SLIP SHEAR ZONES (STEPHAN MUELLER MEDAL LECTURE); L.Jolivet (Orleans Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14174; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177204 KARA SEA -- GEOLOGY
THE ORDOVICIAN URVANTSEV EVAPORITE BASIN IN THE NORTHERN PART OF THE KARA SEA; N.A.Malyshev, V.A.Nikishin, A.M.Nikishin, V.V.Obmetko and L.N.Kleshchina (Rosneft NK; Sakhalinmorneft Inst; Moscow State Univ).. DOKLADY EARTH SCIENCES v.448, pt.2, pp.157-160, Feb. 2013. (ISSN 1531-8354)

An evaporite basin containing different types of salt diapirs and pillows has been distinguished in the north Kara Sea. Salt structures formed over a long period, probably in the Silurian and Devonian, and during the phase of Late Paleozoic (Carboniferous – Early Permian) compression of the North Kara basin. There are Quaternary caldera like depressions above some salt diapirs; formation of these depressions is attributed to alternation of glacial and interglacial epochs, and dissolution of salts. Evaporites are likely Late or Middle Ordovician in age. In the Middle–Late Ordovician, the North Kara basin was in the near equatorial zone.

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1177205 KUWAIT -- GEOLOGY
TITHONIAN BASAL MAKHUL SHALE: A FRONTIER SHALE RESOURCE PLAY IN KUWAIT; R.Husain, A.Al-Khamis, F.Hussain, A.Prakash, A.Rabie and A.Al-Fares.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The lower part of the Makhul Formation comprises a transgressive sequence of organic-rich argillaceous limestones, calcareous mudstones and dark euxinic bituminous rich claystones. The unit called the Basal Makhul Shale is emerging as a promising exploratory target for shale oil. The Basal Makhul Shale was deposited during the latest Tithonian (Jurassic) in the mid-to-distal outer ramp setting within an anoxic intrashelf basin of deposition on the carbonate ramp system of the Arabian shelf. The thickness of the unit gradually increases to the north. The present TOC values range from 0.35 to 7.51%. The hydrogen index shows low values, indicating nearly inert type II marine to mixed gas- and oil-prone source potential. The average Vitrinite reflectance values ranging from 0.72% to 0.86% and Pyrolysis Tmax values ranging from 406°C to 460°C suggest middle to earliest late maturity window for oil generation. The transformation ratio is about 68% and the hydrocarbon saturation varies from a minimum of 70% in the southwest to a maximum of 96% in the north. (Original not available from T.U.)

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1177206 KUWAIT -- GEOLOGY
LOWER NAJMAH SHALE: AN EMERGING SHALE RESOURCE EXPLORATION TARGET IN KUWAIT; F.Hussain, R.Husain, A.Al-Khamiss, P.Singh, A.Rabie, R.Mulyono and A.Al-Kandary.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Late Jurassic Najmah and Sargelu formations are established naturally fractured unconventional reservoirs in Kuwait which are currently being explored and developed together by conventional methods. Focused study on the lower organic-rich unit of Najmah Formation of Oxfordian age (Lower Najmah Shale) has brought out its potential as shale gas and oil play. A paradigm shift in exploration and exploitation strategy for these resources is vital for unlocking the resource potential. The Lower Najmah Shale has been synergistically evaluated in terms of depositional environments, source facies richness, distribution, thickness and maturity, mineralogy, pore pressures and natural fractures. Lower Najmah shale is subdivided into three distinct units designated as lower, middle and upper. The lower and upper units comprise dominantly organically rich bituminous calcareous mudstone facies deposited in an outer ramp to basinal environment. The middle unit comprises predominantly wackestone-packstones deposited in a proximal to distal outer ramp setting. Source richness analysis indicates total organic carbon to vary from 1.95 to 14.5%, with higher content in the northern part of Kuwait. (Original not available from T.U.)

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1177207 KYRENIA MT -- GEOLOGY
EPISODIC TECTONIC REACTIVATION OF THE S. NEOTETHYS IN THE E. MEDITERRANEAN AS EVIDENCED FROM THE KYRENIA (GIRNE) RANGE, CYPRUS; A.Robertson, G.McCay, K.Tash, I.Raffi, R.Ellam, K.Dick and M.Necdet.. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1519; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 2 pp; Abstract only)

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1177208 LAKE MARACAIBO AREA -- GEOLOGY
FAULT REACTIVATION IN THE SOUTH LAKE, MARACAIBO-VENEZUELA BASIN [REACTIVACION DE FALLAS EN EL SUR DEL LAGO, CUENCA DE MARACAIBO-VENEZUELA]; B.Marx, V.Parravano, M.Del Carmen Morales, N.Diaz, M.Ramos, D.Hamilton and J.Acosta (Petroleos Venezuela SA; EXGEO-CGG).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

The southern part of Lake Maracaibo basin is characterized by a series of normal faults of opposite vergences which have undergone a series of reactivation events during the Cenozoic. In the Paleocene?-Eocene the Lama-Icotea and South Lake faults were reactivated as left trending faults, generating a stepover zone of relaxation, where it developed a pull-apart structure and deposited Misoa Formation sediments. Simultaneously, normal faults developed in the foot wall of the Lama-Icotea fault, due to the effect generated by a thick sequence of shales of the Colón Formation. Additionally, the VLE fault was reactivated as a normal fault, developing a roll-over in its hanging wall. In the Oligocene a regional unconformity was generated, a second reactivation of faults affected the area between the Early and Middle Miocene, normal faults changed to reverse and there were the development of shortcuts and buttressing in the neighborhood of the major faults. This new geological vision breaks the traditional structural evolution paradigm of the southern lake, allowing a more reliable approach to the reservoirs associated with tested Cretaceous traps, as it is not required to have major migration paths along thrust faults, as proposed by previous models, and explains that the reservoirs are located near major faults.

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1177209 LIAONING -- GEOLOGY
ON THE LOWER CRETACEOUS IN YIXIAN COUNTY OF JINZHOU CITY, WESTERN LIAONING, CHINA; Q.Ji, Y.Liu and X.Jiang (Chinese Academy Geol Sci).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.437-442, April 2011. (ISSN 1000-9515)

Traditionally, the lacustrine deposits in Yixian County of Western Liaoning have been assigned to either the Dakangpu Bed of the Yixian Formation or the Jiufotang Formation. However, a 206Pb/238U age of 126.47 ± 0.87 Ma is newly obtained from the tuff sample (06051) of the lacustrine deposits in the Baitaigou fossil site of Potaizi village, Yixian County, indicating that the lacustrine deposits in Potaizi area are approximately equivalent to the Wumingshan volcanics of the Sihetun Bed of the Yixian Formation in Beipiao. From our new dating data have arisen some new problems. Where could we find the Jiufotang Formation in Yixian County? How widely distributed is the Jiufotang Formation in Western Liaoning? Could the traditionally named Jiufotang Formation somewhere in Western Liaoning be the synchronous deposits of other litho-units (e.g., the Yixian Formation) in different facies? Could some lacustrine deposits somewhere in Western Liaoning have been assigned to the Jiufotang Formation?

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1177210 LLANOS BASIN -- GEOLOGY
EXPLORATORY IMPLICATIONS OF FOREBULGE GEOMETRY AND MIGRATION IN THE LLANOS BASIN; G.Bayona, P.Villamarin, A.Mora, G.Ojeda, M.Cortes, A.Valencia, H.Mahecha and V.Torres (Corporacion Geologica ARES; Ecopetrol SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp)

Growth of an orogen produces flexural subsidence in the foredeep and flexural uplift in distal areas (forebulge) of the adjacent foreland basin. The forebulge and associated faults are key features for oil exploration because they tend to focus development of stratigraphic and structural traps. However, the geometry and position of the forebulge may change over geologic time either by local effects (reactivation of intraforeland structures), growth pattern of the adjacent orogenic belt (i.e., structures in the Eastern Cordillera), changes in subduction regime along the plate margin (dynamic topography), and lateral changes in plate rigidity (elastic thickness of the lithosphere). The combination of these elements must be considered in the interpretation of geometry and migration of the forebulge. We analyzed along-strike geometry/migration patterns of the forebulge of the Llanos basin of Colombia on the basis of tectonostratigraphic analysis of three areas of the Llanos basin, related to three different structural provinces of the eastern thrust belt of the Eastern Cordillera: the northern recess (latitude of Siriri block), the central salient (latitude of Cusiana oil field), and the southern recess (latitude of Castilla oil field).

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1177211 LLANOS BASIN -- GEOLOGY
TIMING OF THE DEFORMATION OF THE SOUTHERN ZONE OF THE LLANOS ORIENTALES BASIN, COLOMBIA [TEMPORALIDAD DE LA DEFORMACION EN LA ZONA SUR DE LA CUENCA DE LOS LLANOS ORIENTALES, COLOMBIA]; J.Jacome and M.Fernando (Santander Industrial Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 7 pp; In Spanish)

Hydrocarbon exploration in the Llanos Basin is certainly a priority for oil companies in our country. Research in this area has focused on the goal of building a detailed chronology in the formation of geological structures using seismic interpretation methods focused on determining the timing of deformation and generating subsurface geometric models based on the use of tools such as growth strata, which show validity to stipulate age, growth rates and kinematics of structures. In this type of scenario, the relationship between the rate of sedimentation, subsidence and speed of movement of faults, together with the deformation geometry thereof, defined growth wedges that are diagnostic for each of the above parameters. In areas such as the southern part of the Llanos Orientales basin, the preliminary results of the application of this technique allow us to suggest the presence of structures that, despite showing good physical condition for hydrocarbon accumulation, have high geological risk because of age and rate of formation. We present the initial findings of the detailed inventory of growth strata in this area which, calibrated in possible new absolute dating of these units, have an untapped potential that can produce unexpectedly positive results throughout the Paleogene and Neogene record.

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1177212 LLANOS BASIN -- GEOLOGY
PROVENANCE OF MIOCENE SEDIMENTS ON THE EASTERN EDGE OF THE LLANOS ORIENTALES BASIN, COLOMBIA [PROCEDENCIA DE SEDIMENTOS DURANTE EL MIOCENO EN EL BORDE ESTE DE LA CUENCA LLANOS ORIENTALES, COLOMBIA]; N.Moreno, J.Gelvez and A.Mora (Ecopetrol SA; HOCOL SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

Modal and chemical compositions of the Miocene sequence on the eastern edge of the Llanos Orientales Basin show variations that reflect differences in the source area, generating conditions of the sediments and basin configuration. The units of the Early to Middle Miocene, Carbonera and León Formations are composed of sediments derived from a source area of cratonic character, located to the East, depleted in mobile and incompatible elements, affected by high chemical weathering regimes, tectonically stable and with siliceous detritus, mainly of plutonic, transported short distances.

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1177213 LLANOS BASIN -- GEOLOGY
THREE-DIMENSIONAL GEOLOGICAL MODELING USING SEISMIC INVERSION IN A RESERVOIR INTEGRATED STUDY FOR A GIANT HEAVY-OIL FIELD: RUBIALES FIELD, EASTERN LLANOS BASIN, COLOMBIA, SOUTH AMERICA; Y.Gomez, D.Morales, T.De Souza, F.Yoris, G.Alvarez, C.Reina, L.Landaeta and D.Castellanos.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Rubiales Field is located at the southeast of the eastern Llanos Basin, the area with the largest heavy-oil reserves in Colombia. The reservoir is Tertiary sandstones of the lower Carbonera Formation, deposited in a predominantly fluvial environment, informally known in the area as Arenas Basales. The goal of this study was to quantify original oil in place, reserves and to improve strategies for the field development plan. Previous stochastic models were generated using a Gaussian simulation process for facies population. However, the prediction of the geometry of the sand bodies was not satisfactory due to reservoir complexity. This new model, based on seismic elastic inversion, gave a better understanding of the continuity of the sand bodies and provided better prediction of reservoir properties. It became the static model input to numerical simulation of the reservoir. The main product of this study was a model that captured the complex stratigraphic variations of the reservoir unit. This in turn has allowed for optimizing locations of both vertical and horizontal wells. (Original not available from T.U.)

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1177214 LLANOS BASIN -- GEOLOGY
ENTRAPMENT OF HEAVY OILS IN THE SOUTHERN LLANOS BASIN, COLOMBIA: CONTROLLING GEOLOGIC FACTORS AND POTENTIAL OF A MAJOR EMERGING PROVINCE; M.G.De Freitas, W.Gil, L.Bueno and A.Fajardo.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The Llanos foreland basin of eastern Colombia is the country's most prolific hydrocarbon province. Although the Southern Llanos Basin (SLB) contains over 10 billion barrels of OOIP (mostly heavy oils), a large portion of it remains underexplored and poorly understood, given its more complex tectonostratigraphic development associated with the Neogene uplift of the adjacent Eastern Cordillera and Macarena Range. Recently, important accumulations of heavy and extra-heavy (<10 API) oils are being gradually unraveled in more subtle traps in the SLB, anticipating a major emerging province. A complex interplay of controlling geologic factors account for the poor understanding to date of the existing plays and the assessment of their ultimate potential. We assessed the distribution and key geologic controls on the oil entrapment in the SLB integrating a large regional dataset including 2D, 3D seismic data, gravity, exploratory and stratigraphic well logs, cores, rock and oil samples and geochemical data. (Original not available from T.U.)

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1177215 LLANOS BASIN -- GEOLOGY
INCISED VALLEYS AN EMERGENT PLAY IN THE LLANOS BASIN SOUTHERNMOST BORDER; A.Disalvo, M.D.Ragazzi and R.D.Peithe.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Exploration in the Llanos basin is currently limited due to the high maturity of the traditional plays. However, of late, reinterpretation of existing data, acquisition of new seismic and wildcat drilling in the southern border of the basin have proved a new stratigraphic play, which in this work we have named Incised Valleys Fill. It consists of a paleogeomorphic trap where fluvial Late Eocene sandstones fill a paleorelief of valleys incised in non-permeable Lower Paleozoic rocks which give the lateral seal. Top seal is provided by coastal to shallow marine muds, which indicate the culmination of a Late Eocene to Oligocene transgressive cycle. Paleovalleys have a SSW-NNE orientation and the sense of sedimentary transport is toward the north. They are controlled by the lithology of the Paleozoic rocks, where the sides of the valleys correspond to orthoquartzites and the bottom to softer rocks, resulting in an irregular topography due to differential erosion. Sandstones are related to amalgamated fluvial channels, which are confined to the basal fill of the paleovalleys. (Original not available from T.U.)

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1177216 LUSITANIAN BASIN -- GEOLOGY
PALYNOFACIES AND ORGANIC GEOCHEMISTRY OF THE SINEMURIAN CARBONATE DEPOSITS IN THE WESTERN LUSITANIAN BASIN (PORTUGAL): COIMBRA AND AGUA DE MADEIROS FORMATIONS; N.P.Ribeiro, J.G.Mendonca Filho, L.V.Duarte, R.L.Silva, J.O.Mendonca and T.F.Silva (Coimbra Univ; Rio de Janeiro Fed Univ).. 63RD ANNUAL INTERNATIONAL COMMITTEE FOR COAL AND ORGANIC PETROLOGY MEETING [ICCP] (Porto, Portugal, 9/10-16/2011) PAPERS; INTERNATIONAL JOURNAL OF COAL GEOLOGY v.111, pp.37-52, 5/1/2013. (ISSN 0166-5162)

The Lower Jurassic in the Lusitanian Basin (Portugal) is mainly represented by hemipelagic carbonated deposits rich in organic matter (OM). In this study, supported by a high-resolution stratigraphic and sedimentological framework, the analysis of the OM content of the Coimbra and Água de Madeiros formations in the reference outcrop sections of S. Pedro de Moel and Peniche is presented. This is a multidisciplinary approach to the study of 31 samples in these series, supported by organic petrography [palynofacies, spore coloration index (SCI) and random vitrinite reflectance (%Rr)] and organic geochemistry [total organic carbon (TOC) and biomarkers]. The palynofacies analysis provides evidence that the OM is mainly composed of particles belonging to the amorphous organic matter (AOM) group. The phytoclasts correspond mostly to the non-opaque (translucent) subgroup, generally degraded and oxidized, with significant representation in some stratigraphic levels of the Coimbra Formation and the Polvoeira Member at Peniche. The palynomorphs are mainly composed of Classopollis pollen grains, zygospores, Acritarchs and Prasinophyte phycomata. ... (c2013 Elsevier B.V.) (Longer abstract available)

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1177217 MACEDONIA -- GEOLOGY
NEW DATA FROM THE VARDAR SUTURE ZONE IN THE REPUBLIC OF MACEDONIA (FYROM) USED TO TEST ALTERNATIVE MODELS OF JURASSIC OPHIOLITE EMPLACEMENT AND NEOTETHYAN EVOLUTION IN THE BALKAN REGION; A.Robertson, B.Trivic and N.Deric.. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1527; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177218 MAGADAN REGION -- GEOLOGY
RECENT HYDRODYNAMIC ACTIVITY OF SUBMERIDIONAL DEEP-SEATED FAULT ZONES AS AN INDICATOR OF THE PETROLEUM RESOURCE POTENTIAL OF SEDIMENTARY BASINS (NORTHEASTERN RUSSIA); A.A.Sidorov, V.E.Glotov and A.V.Volkov (IGEM; SVKNII).. DOKLADY EARTH SCIENCES v.448, pt.2, pp.180-184, Feb. 2013. (ISSN 1531-8354)

The defined submeridional deep seated fault zones (SDFZ) may be considered as global geological structures comparable with rifts. The area of intersection between the North Okhotsk rift zone and the submeridional deep seated fault zone extending along the meridian 156°E and best known with respect to its geological, geophysical, and hydrogeological structures served as the object for this investigation. Special attention should also be paid to the sedimentary cover of the Gizhiga sedimentary basin and its petroleum potential. Until recently, this basin had been ignored by geologists as an object for petroleum prospecting works because of its relatively small volume. At the same time, very high saturation of its sed imentary cover with plant organic matter including coal seams provides prerequisites for generation of both methane and oils owing to hydrogenation in the intersection of deep faults. The proportions of porous reservoirs and regionally developed confining beds (caprocks) for fluids in this basin are optimal.

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1177219 MAGDALENA VALLEY -- GEOLOGY
STRATIGRAPHIC AND PETROGRAPHIC CHARACTERIZATION OF THE LA LUNA FORMATION IN THE EL TABLAZO SECTOR, MIDDLE MAGDALENA VALLEY [CARACTERIZACION ESTRATIGRAFICA Y PETROGRAFICA DE LA FORMACION LA LUNA EN EL SECTOR DE EL TABLAZO, VALLE MEDIO DEL MAGDALENA]; L.A.Bernal Rodriguez (Colombia Nacional Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 6 pp; In Spanish)

In the Middle Magdalena Valley (MMV), Turonian-Santonian age strata have been called the La Luna Formation; the unit has its type section in the Perija mountain range, Venezuela. However, since 1944 this name has been assigned to a group of rocks with similar physical characteristics in Colombia. In 1958 the El Tablazo area, Santander Department, was established as the type section for defining the three members comprising this unit in Colombian territory, these are: the Salada Member,the Pujamana Member, and the Galembo Member. After applying new concepts in sedimentology and sequence stratigraphy it has been shown that the strata found on the MMV vary significantly as compared to those recognized in Venezuela, and that the anomalous subdivision of the unit has generated a number of drawbacks in the understanding and use of this unit both scientifically and economically, the latter taking into account that the La Luna Formation source rock is the largest in the petroleum systems of the MMV.

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1177220 MAGDALENA VALLEY -- GEOLOGY
ARCHITECTURAL ELEMENTS OF THE MUGROSA FORMATION STATIC MODEL APPLIED TO THE COLORADO SCHOOL FIELD [ELEMENTOS ARQUITECTURALES DE LA FORMACION MUGROSA APLICADOS AL MODELO ESTATICO DEL CAMPO ESCUELA-COLORADO]; C.Fonseca, J.Garcia, J.Sandoval and J.Pinto (Santander Industrial Univ; Ecopetrol).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

Looking for methodologies that lead to an effective understanding of mature oil fields, where the sedimentological and stratigraphic characterization must be robust, it is proposed that characterization and analysis of the architectural elements distribution will generate more criteria to establish the static models properties. This work has been done by obtaining stratigraphic columns in the field, description of drilling core, and characterization of electric logs. The results of facies associations, architectural elements, the analysis of width/thickness, amalgamation characteristics of channel bodies, and their subsequent use in stratigraphic correlation and thickness maps, indicate that the Mugrosa Formation in the Colorado Field belongs to a depositional environment controlled by the existence of meandering channel rivers with marked lateral migration and median sinuosity.

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1177221 MAGDALENA VALLEY -- GEOLOGY
CHANGES IN STRUCTURAL STYLES CONTROLLED BY TRANSVERSE ZONES IN THE SOUTHERN UPPER MAGDALENA VALLEY [CAMBIOS EN ESTILOS ESTRUCTURALES CONTROLADOS POR ZONAS TRANSVERSALES EN EL VALLE SUPERIOR DEL MAGDALENA]; G.Jimenez, G.Bayona, D.Sierra, A.Rosero, J.Rico and C.Montes (Corporacion Geologica ARES; HOCOL SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 9 pp; In Spanish)

Detailed geologic mapping in the footwall of the Chusma fault (Southern Upper Magdalena Valley, SUMV) allows the definition of four structural domains limited by approximately E-W transverse zones. These transverse zones were identified by the across-strike alignment of abrupt end of faults, change in stratigraphic position of detachment levels, the plunge of folds, and the presence of E-W-striking transverse faults. Dominance of strike-slip deformation due to Upper Cretaceous - Cenozoic shortening decreases northward across those transverse zones. In the southernmost domain, South of Rio Paez river, oblique folds and vertical faults are better explained by dextral strike-slip deformation. The next block to the north, La Hocha Anticline domain, consists of two curved folds with symmetrical plunges, and folding is associated to faults with detachment levels in the Saldaña Formation; the transpressive, nearly vertical San Jacinto fault system bounds to the east La Hocha domain. Continuing to the north, the structure includes east-verging structures related to detachment levels in the Villeta and Guaduala Formations. In the northernmost domain, east-verging thrust faults detached in Villeta-Guaduala Formations are cut by the west-verging Upar fault system that detaches in the Saldaña Formation. The role of these transverse zones, formed during Jurassic-Cretaceous extension phases, needs to be evaluated for each shortening event and as possible lateral boundary of oil fields.

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1177222 MAGDALENA VALLEY -- GEOLOGY
AFTA (APATITE FISSION TRACK ANALYSIS) CONSTRAINTS ON THE MESOZOIC TO QUATERNARY THERMAL AND TECTONIC EVOLUTION OF THE MIDDLE MAGDALENA BASIN AND SANTANDER MASSIF, EASTERN CORDILLERA, BUCARAMANGA AREA, COLOMBIA; I.R.Duddy, P.Parra Mantilla, C.A.Mora Hernandez and C.A.Pimentel Trujillo (Geotrack Int Pty Ltd; GEMS Ltda; Santander Industrial Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 14 pp)

Apatite Fission Track Analysis (AFTA®) provides direct measurement of the time and magnitude of maximum paleotemperature together with similar information on at least one other subsequent heating episode experienced by a rock sample. Forty-two samples, representing all major stratigraphic units of the Eastern Cordillera in the vicinity of Bucaramanga, including the Precambrian Bucaramanga Gneiss and Paleozoic sandstones from the Santander Massif and sandstones from the Mesozoic, Cenozoic and Quaternary sedimentary sequences of the Middle Magdalena Basin (MMB), were collected and processed to recover apatite for AFTA apatite fission track analysis. AFTA results from outcrops of Precambrian to Neogene age reveal evidence for three paleo-thermal episodes, with significant cooling beginning at some time in the Paleocene (65 to 60 Ma), Early Miocene (20 to 18 Ma) and Middle Miocene (12 to 9 Ma). These cooling episodes must have involved kilometre-scale erosion at these times for any geologically reasonable range of geothermal gradients. The Early Miocene episode is pervasive across the region, being observed in rocks of Precambrian to Early Cretaceous age in the Santander Massif, east of the Bucaramanga and Surata Faults as well as in sediments of Triassic to Oligocene age in the MMB.

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1177223 MAGDALENA VALLEY -- GEOLOGY
NEW EXPLORATORY PERSPECTIVES IN THE SOUTHERN SECTOR OF THE MIDDLE MAGDALENA VALLEY BASIN (COLOMBIA) [NUEVAS PERSPECTIVAS EXPLORATORIAS EN EL SECTOR SUR DE LA CUENCA DEL VALLE MEDIO DEL MAGDALENA (COLOMBIA)]; J.C.Mondragon, M.Mayorga, G.Rodriguez, J.Navarro and I.Moretti (Cepcolsa; CEPSA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 5 pp; In Spanish)

The prolific Magdalena Valley Basin in Colombia is a long narrow structural depression located between the central and eastern Cordilleras. This basin is sub-divided into three sections: Upper Valley, Middle and Lower. Recent studies south of the Middle Valley suggest that this area presents a particular tectonostratigraphic evolution that differs both from the northern basin of the Middle Valley and the Upper Valley Magdalena.

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1177224 MAGDALENA VALLEY -- GEOLOGY
DEFINITION OF DIAGENETIC EVENTS AND HYDROCARBON CHARGE THROUGH PETROLOGIC STUDIES IN THE ROSA BLANCA FORMATION, MIDDLE MAGDALENA VALLEY BASIN [DEFINICION DE EVENTOS DIAGENETICOS Y CARGA DE HIDROCARBUROS MEDIANTE ESTUDIOS DE PETROLOGIA EN LA FORMACION ROSABLANCA, CUENCA DEL VALLE MEDIO DEL MAGDALENA]; J.Naranjo V., N.Duque P. and N.Moreno G. (Ecopetrol SA; ANSALL Ltda).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 9 pp; In Spanish)

Integrated petrologic studies including conventional petrology, microfluorescence, fluid inclusions and cathodoluminescence reveal the occurrence of hydrocarbon migration during diagenesis through microfractures and intergranular and intercrystalline space in the Rosablanca Formation, increasing interest in exploration in the Cretaceous Middle Magdalena Valley Basin. In clastic facies, hydrocarbon inclusions are observed within intergranular microfracture cutting allochem particles, cements and vein fillings, indicating that the hydrocarbon was at a late stage diagenesis. Most inclusions present blue fluorescence colors, suggesting the presence of qualitatively light crude, occasionally fluorescent yellow can be associated with heavy oil. The presence of inclusions containing two crude API gravities in microfractures of different orientation suggests that the migration of hydrocarbons takes place in two chronologically distinct stages or probably a same stage involving gravity segregation or biodegradation. The diagenetic history of this formation includes cementation, dissolution and fracturing events that have altered the reservoir quality.

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1177225 MAGDALENA VALLEY -- GEOLOGY
DEFINITION OF AN OBJECT BASED GEOSTATISTICAL MODEL FOR FLUVIAL CHANNEL COMPLEXES, MIDDLE MAGDALENA VALLEY, COLOMBIA [DEFINICION DE UN MODELO GEOESTADISTICO BASADO EN OBJETOS PARA CANALES FLUVIALES COMPLEJOS, CUENCA DEL VALLE MEDIO DEL MAGDALENA, COLOMBIA]; M.A.Patino Gomez, M.A.Patino, G.D.Meza and A.Ortiz (UT-EOS-DTH; Ecopetrol SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 9 pp; In Spanish)

The focus of this study was to use the stratigraphic and petrophysicals models from an amalgamated fluvial channel complex, an oil producer in the Middle Magdalena Valley, in order to define the methodology to achieve geostatistical modeling. The characterization process in this type of deposit is to build as realistic a model as possible. First, the stratigraphic model was generated from core descriptions, stratigraphic correlations, facies maps, thickness and average thickness of sand, which can identify areas with the best sand bodies. Second, a petrophysic modeling was made to determine which areas have good porosity and water saturation for hydrocarbon accumulation. Third, from outcrop observations, cores, and logs, a statistical analysis of histograms was made to determine the thickness and width of the best sand bodies, associated with channel deposits, to formulate an object based model. Taking into account the different body geometries from the channel deposits it is possible to assemble a facies model showing the best trends in orientation, distribution and continuity of sand bodies and from these data it is possible to get the porosity and water saturation model that indicates the best rock for hydrocarbon accumulation.

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1177226 MAGDALENA VALLEY -- GEOLOGY
ORTEGA AND PACANDE FIELDS, UPPER MAGDALENA VALLEY: INFLUENCE OF FRACTURED ZONES ON WELL PRODUCTIVITY [CAMPOS ORTEGA Y PACANDE, VALLE SUPERIOR DEL MAGDALENA, COLOMBIA: INFLUENCIA DE ZONAS FRACTURADAS EN LA PRODUCTIVIDAD DE POZOS]; M.Mantilla, G.Vidal and M.De Freitas (HOCOL SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

The Ortega and Pacande fields produce oil from low porosity reservoirs of the Caballos (sandstones and limestones) and Tetuan (limestone) formations. Ortega was discovered in 1951 and Pacande in 1990; the first was developed as a naturally fractured reservoir and the second, even with similar stratigraphic and structural features, was developed conventionally obtaining irregular productivity and low recovery. The interpretation of two recent 3D seismic volumes and integrated structural, stratigraphic and well-production data of the Ortega field allowed the proposal of a model for the distribution pattern of fractured zones, increasing well production potential. Based on this model two wells were drilled in the Pacande field and one in the Ortega field, with significant increase of production. Integration of new data acquired in these wells, including image and dipole sonic logs, allowed refinement of the fracture distribution model. The applicability of the proposed model in the Pacande field is evaluated based on historical production data of the Ortega field (ten wells) and the results of four newly drilled wells. The results to date demonstrate a good correlation between areas of higher density fractures and well productivity.

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1177227 MAGDALENA VALLEY -- GEOLOGY
LIMESTONE PLAY OF THE MIDDLE MAGDALENA VALLEY BASIN: A SLEEPING GIANT? [PLAY CALCAREO DE LA CUENCA DEL VALLE MEDIO DEL MAGDALENA: UN GIGANTE DORMIDO?]; R.Aguilera (RA Geologia EU).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 5 pp; In Spanish)

The Middle Magdalena Valley basin is one of the most prolific in the country, with major world class discoveries such as La Cira-Infantas Field. However, opportunities that size have not been found since its discovery over 80 years ago. In the past, there has been some work to identify exploration opportunities in the basin, in particular sequences of Cretaceous limestone. So far this type of deposit has been ruled by the depth of the objectives and uncertainty about the quality of the reservoir. However, geochemical evidence, the burial history in various parts of the basin, and regional structural maps indicate that Lower Cretaceous rocks are the most mature and probably more prolific in hydrocarbon generation, which coupled with an important structure during the Eocene and sub-aerial exposure that this involved, suggest the development of attractive points (sweet spots) on which fracture zones and/or dolomitization have been formed that improve reservoir properties of the Lower Cretaceous sequence carbonate levels, and favor the accumulation hydrocarbons.

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1177228 MAGDALENA VALLEY -- GEOLOGY
FACIES CHANGES AND STRATIGRAPHY IN THE POPA FORMATION: AN EXAMPLE FROM NORTHERN CARTAGENA, COLOMBIA; L.Reyes, A.Ortiz and G.Guzman (Santander Industrial Univ; Ecopetrol-ICP; INVEMAR).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

Active research work performed on the Arroyo de Piedra and Manzanillo Popa Plio-Pleistocene sequence localities, north from Cartagena, is focused to understand carbonate platform evolution in the Lower Magdalena Basin. Cores (445 m) and outcrops (40 m) were described and interpreted as shallow platform sediments in a mixing environment close to the coast and coastal lagoons with six calcareous facies and 13 siliciclastic facies indicating progressive shallowing upward of the sequence. Reef development on the seaward side of the platform shows different typse of allochems and several stony and branching corals including Diploria strigosa, Monastrea cavernosa, Acropora palmata, Acropora cervicornis and dominant amounts of Porites porites. Coastal deposits show muddy sediments with different types of gastropods, and mangrove relicts. Main diagenetic processes are marine cementation and meteoric dissolution. A constant feature that can be observed in the area between Barranquilla and Cartagena is the occurrence of the limestones always on the top of the hills present indicating that this uplifting began early in the sea floor. So there is a direct ratio between climate, tectonics and limestone distribution. Sequence stratigraphy evolution shows how the accommodation space is decreasing with several features that indicate a period of highstand that continues today.

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1177229 MAGDALENA VALLEY -- GEOLOGY
INTEGRATED MULTISCALE APPROACH FOR LITHOLOGICAL AND MINERALOGICAL CHARACTERIZATION OF UNCONVENTIONAL SHALE PLAYS: UNDERSTANDING THE EARLY CRETACEOUS ROCKS IN LA LUNA-1 WELL, MIDDLE MAGDALENA VALLEY BASIN, COLOMBIA; H.A.Galvis-Portilla, N.Marfisi, I.C.Higuera-Diaz, C.I.Ballesteros, S.P.Cespedes and M.P.Marin.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The fine-grained Cretaceous sequence in the Middle Magdalena Valley Basin of Colombia are among the richness in organic content and best hydrocarbon-generating rocks in the world. However, for all these good-generating characteristics, very few studies have addressed the potential of these rocks as an unconventional hydrocarbons reservoir. From the 3,800 ft of core recovered, we characterized systematically from cm- to nm-scale lithological and mineralogical features to understand facies arrangements at different scales. Here we focus on a 500 ft interval from the Barremian to lower Albian that typifies variability on facies arrangement. At cm-scale, a lithological core description shows interlayering of dark-grey to black-colored laminated marlstones and limestones. Thin section description reveals a variety of components including laminated clay-size minerals, organic matter layers, silt-size quartz grains, bioclasts, and calcite, siliceous, and dolomitic cements. XRD results confirmed the bulk rock composition showing silica fractions up to 50 percent in weight in these carbonate mudrocks. SEM analyses helps determine that although there is a silt-size siliciclastic fraction, most of the silica appears on crystalline aggregates as cement with local and widespread silicification. (Original not available from T.U.)

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1177230 MAGDALENA VALLEY -- GEOLOGY
NEW GEOLOGIC AND GEOPHYSICAL CONSTRAINTS IN THE ASSESSMENT OF EXPLORATION PLAYS IN THE LOWER MAGDALENA BASIN, ONSHORE NORTHERN COLOMBIA; M.G.De Freitas, A.Mora, A.M.Mesa, V.Velez, M.Martinez, D.Sierra and L.Serna.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The Lower Magdalena Valley (LMV) of northern Colombia records a complex tectonostratigraphic development since the Late Cretaceous. The uncertainties associated with the multi-phase geologic history led to limited exploration success in over a century, with approximately 0.5 bboe discovered. Our regional assessment suggests a significant unrealized potential. Critical geologic uncertainties remain associated with all known and inferred exploration plays in the LMV. Common to all plays is the poorly constrained burial history and scarce geochemical characterization of potential source rocks. We present advances in the understanding of the LMV exploration plays based on the evaluation of a comprehensive regional database comprising 2D, 3D seismic, gravity-magnetics, well logs, biostratigraphic, petrophysical, geochemical, AFT data and surface geology. The main LMV exploration plays are examined in terms of reservoir age and type, with trap styles defining sub-plays. The bulk of commercial discoveries to date are associated with (1) the Late Oligocene (Cienaga de Oro) sandstone and (2) the Early Miocene (Cicuco) limestone plays, mostly in structural traps along the eastern LMV. (Original not available from T.U.)

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1177231 MAGNETIC RESONANCE -- GEOLOGY
SEEING THE FLUIDS INSIDE ROCKS (CHRISTIAAN HUYGENS MEDAL LECTURE); M.D.Huerlimann (Schlumberger Doll Research).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14173; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177232 MAKHTESH RAMON -- GEOLOGY
TECTONIC AND EUSTATIC CONTROL ON MULTI-SCALE SEDIMENTARY CYCLES IN THE LADINIAN-CARNIAN CARBONATE-EVAPORITE SUCCESSION, SOUTHERN LEVANT MARGIN; O.Bialik, A.Kantorovitch, A.Meilijson, D.Korngreen and C.Benjamini (Ben Gurion Univ; Israel Geological Survey).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1554; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177233 MARANON BASIN -- GEOLOGY
DEFINING A STRUCTURAL MODEL FROM A RETRODEFORMED TRANSECT IN THE SOUTHWEST SECTOR OF THE MARANON BASIN FOOTHILLS, PERU [DEFINICION DE UN MODELO ESTRUCTURAL A PARTIR DE UNA TRANSECTA RETRODEFORMADA EN EL SECTOR SUROCCIDENTAL DEL PIEDEMONTE DE LA CUENCA MARANON EN PERU]; P.Cardenas and G.Lopez (Ecopetrol SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 8 pp; In Spanish)

The Marañon Basin corresponds structurally to a foreland basin affected by both extensional and compressional forces. This study was conducted based on a structural transect in the southwestern sector of the Marañon Basin in Peru, using Move 2D modeling software. Based on this modeling program, retrodeformation and balancing defines a sequence of structural events starting with the first extensional event early Triassic expressed in synsedimentary normal faulting affecting Paleozoic to Jurassic rocks. The second event, a pre-unconformity of Neocomian age, is defined as thick-skinned type (coarse scale) related to the reactivation of synsedimentary normal faults. After this uplift, the Neocomian unconformity is identified. Deposition of Mesozoic to Neogene rocks was then generated. Based on information and modeling, in the central-eastern part of the transect there was identified a sequence of folds in the Mesozoic and Neogene sequences associated with the reactivation of the faults described above and possibly as a manifestation of the first uplift of the Andean Cordillera. Finally, the event most clearly manifested is a compression system of thin-skinned type (thin flake), developed to the west of the transect, considered to be the development of the Eastern Cordillera uplift. Based on retrodeformation a value about 50% shortening is proposed.

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1177234 MARANON BASIN -- GEOLOGY
IMPACT OF PRE-CRETACEOUS STRUCTURES IN THE MARANON BASIN HYDROCARBON ENTRAPMENT [IMPACTO DE LAS ESTRUCTURAS PRE-CRETACICAS EN EL ENTRAMPAMIENTO DE HIDROCARBUROS DE LA CUENCA MARANON]; W.Hermoza, R.Veiga, J.Franques-Faixa, W.Gil, J.Garcia and M.Gutierrez (Repsol Exploracion; Shell; GESSAL).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 7 pp; In Spanish)

The Marañon Basin consitutes part of the current foredeep of the Amazonian foreland system where different petroleum systems develop and interact, which directly controls migration in space and time to different wedge-top, foredeep, forebulge and backbulge depocenters. Different types of structural traps present in this zone are controlled by the paleogeography, and the development and geometry of permo-triassic grabens. The aim of this work is to show the main morphological and structural characteristics of the pre-orogenic basins (pre-Andean). This allows us to analyze the control pre-cretaceous paleogeography exerted on the development of major structural traps and the distribution oil fields in the Marañon basin.

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1177235 MARGINAL FIELD -- GEOLOGY
METHODOLOGY FOR MODELING AND COMPOSITIONAL STOCHASTIC PSEUDO-MARGINAL FIELDS AND LOW-QUALITY INFORMATION; D.Coronel and E.Santafe (Santander Industrial Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177236 MATURE FIELD -- GEOLOGY
METHODOLOGY BASED ON NUMERICAL SIMULATION OF RESERVOIRS FOR REACTIVATION OF MATURE FIELDS [METODOLOGIA BASADA EN SIMULACION NUMERICA DE YACIMIENTOS PARA REACTIVACION DE CAMPOS MADUROS]; E.R.Santafe Rangel, F.E.Calvete and W.Blanco (Santander Industrial Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 8 pp; In Spanish)

Due to current production demands in the field of hydrocarbons, it is convenient to think that if a prospect evaluation strategy technique with low or moderate economic risk is created, Colombia may have the opportunity to increase production if the assessment is performed on those areas that have been abandoned or are of non-economic interest due to their age and level of depletion. By defining appropriate methods for reservoir numerical simulation on mature fields, those fields that are not of commercial interest might possibly be subjected to a process of reactivation. The main advantage of this technique lies in the fact that the numerical simulation of reservoirs is a virtual experimental platform where decisions can be made and evidence can be evaluated on the future impact of implementation without altering the current nature of the field. Being able to evaluate different scenarios can be a strategy to improve the performance of the entire field and not only wells of interest.

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1177237 MATURIN AREA -- GEOLOGY
TECTONO-STRATIGRAPHIC CHARACTERIZATION OF THE EARLY MIOCENE IN THE WESTERN BOUNDARY OF THE MATURIN SUBBASIN [CARACTERIZACION TECTONO-ESTRATIGRAFICA DEL MIOCENO TEMPRANO EN EL LIMITE OCCIDENTAL DE LA SUBCUENCA DE MATURIN]; Y.Barrios, G.Tovar, J.F.Castillo, M.Salomon, M.Herrera, N.Santiago, R.Ramirez and J.Acosta (Petroleos Venezuela SA; EXGEO-CGG).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 9 pp; In Spanish)

During the late Oligocene - early Miocene, a second-order sequence (SM1) consisting of six sequences of third-order sequences (S1-S6), was deposited in the Maturin subbasin. These sediments illustrate lateral facies changes and stacks of systems tracts, generating a sedimentary wedge geometry converging towards the south in a foreland basin type. The sedimentary sequences are affected by two structural styles characterized by a major overthrust fault system forming a triangular area and a planar normal faults system of opposite vergence, developed from pre-existing structures in the basement.

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1177238 MEXICO -- GEOLOGY
MEXICO'S SHALE OIL AND GAS PLAYS: POTENTIAL AND EXPLORATION STRATEGY; J.G.Galicia-Barrios.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Six petroleum provinces in Mexico contain basinal, organic-rich and thermally matured argillaceous rocks of upper Cretaceous and Upper Jurassic ages with well-recognized characteristics of being shale oil and shale gas plays. These provinces are Burro-Picachos, Sabinas, Burgos, Tampico-Misantla, Veracruz and Chihuahua. The main plays are the Cretaceous Eagle Ford-Agua Nueva and the Jurassic La Casita-Pimienta. An initial estimation of the prospective resources indicate that these plays contain more than 60 bboe, of which 32 correspond to oil, 37 tcf to wet gas and 105 tcf to dry gas. Based on their geographic and stratigraphic distribution, an exploration strategy has been designed to reduce uncertainty of these resources. Considering that shale oil and shale gas amount for more than half of the current total prospective resources of Mexico, exploring for these plays has a strategic value to ensure long term energy supply. A sustainable development will require taking advantage of the lessons learned in other areas and applying the right technology to maximize the value of these resources and minimize the environmental impact. (Original not available from T.U.)

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1177239 MEXICO -- GEOLOGY
PETROLEUM HISTORY OF MEXICO: HOW IT GOT TO WHERE IT IS TODAY; A.E.Guzman.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Mexico has five major hydrocarbons producing provinces, including two for oil, the Southeast and the Tampico Misantla basins; and three for gas, the Sabinas, Burgos and Veracruz basins. Seven other provinces with potential include California, Gulf of Cortes, Chihuahua, Sierra Madre Oriental, Sierra de Chiapas, Progreso Shelf, and the Deep Gulf of Mexico. Nevertheless, despite this natural rich endowment, Mexico is the only country in the world among those considered to be oil-rich that has consistently lost production and reserves in the last 10 years. Many reasons can be attributed for these results, and as this note proves, least of them is the country's endowment of oil and gas resources. The explanation can be found in the petroleum history of Mexico. Since 1938, the country has had only one oil company responsible for all of its upstream activities and even though Pemex's performance is comparable with that of most of the majors, it is impossible that all the remnant potential of the whole country can be found and produced through only one company, no matter how large, wealthy, efficient, technologically advanced and successful it is. (Original not available from T.U.)

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1177240 MEXICO -- GEOLOGY
TESTING THE APPLICABILITY OF HALOKINETIC SEQUENCES IN A DEEPWATER DEPOSITIONAL SETTING; T.E.Hearon, M.G.Rowan, W.H.Hart and K.A.Giles.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Halokinetic sequences (HS) are localized (<1 km) unconformity-bound successions of growth strata adjacent to salt diapirs that form as drape folds due to the interplay between salt rise rate (R) and sediment accumulation rate (A). Hook and wedge HS stack vertically to form tabular and tapered composite halokinetic sequences (CHS), respectively. Tabular CHS have a narrow zone of stratal upturn (50-200 m), whereas tapered CHS have a broad zone of stratal upturn and thinning (300-1,000 m). Tabular and tapered CHS form under relatively high and low ratios, respectively, of R and A. CHS boundaries, which form during times of maximum topographic relief, have been tentatively linked to third-order transgressive systems tracts in shelf depositional settings as the concepts of CHS formation are derived from outcrops in shallow water to subaerial depositional environments in La Popa Basin, Mexico and the Flinders Ranges, South Australia. These concepts have yet to be fully applied or tested in a deepwater setting. (Original not available from T.U.)

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1177241 MEXICO -- GEOLOGY
HYDROCARBON EXPLORATION CHALLENGES AND PERSPECTIVES IN MEXICO; J.A.Escalera-Alcocer.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

In the late 1980s and 1990s, in a framework of large proven reserves and economic restrictions, petroleum exploration in Mexico had a very limited budget assignment (ca US $500 million USD per year); therefore booked reserves were low. During 2001-2006, exploration started a reactivation, budget increased to an annual average of US$1.2 billion and booked 3P reserves raised to 4.6 billion barrels of oil equivalent (bboe). Based on the distribution of the 50 bboe of prospective resources in the Mexican petroleum provinces, a strategic plan was put in place in 2007 to improve exploration performance, aiming at 100% 3P reserves restitution by 2012. Key elements of this strategy included focusing budget on the most prospective areas, ensuring a diversified portfolio, privileging oil-prone areas offshore and onshore southeastern Mexico, giving continuity to non-associated gas in Burgos and Veracruz, intensifying evaluation of the deepwater Gulf of Mexico (GoM), and, more recently, evaluating shale oil and gas resources. (Original not available from T.U.)

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1177242 MEXICO -- GEOLOGY
MINERALOGICAL CHARACTERIZATION OF SEDIMENTS FROM THE WAGNER BASIN, NORTHERN GULF OF CALIFORNIA; M.T.Garcia-Valles, P.Alfonso, C.Canet, E.Tauler, R.M.Prol-Ledesma and V.Vazquez-Figueroa (Barcelona Univ; Catalunya Politecnica Univ; Mexico Nac Auton Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14201; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177243 MIDCONTINENT AREA -- GEOLOGY
EXTREMELY HIGH TEMPERATURES AND PALEOCLIMATE TRENDS RECORDED IN PERMIAN EPHEMERAL LAKE HALITE; J.J.Zambito IV and K.C.Benison (West Virginia Univ).. GEOLOGY v.41, no.5, pp.587-590, May 2013. (ISSN 1943-2682)

Although the late Paleozoic deglaciation is arguably one of the best deep-time analogs for current and predicted climate change, quantitative paleotemperature data from this interval are generally lacking. We reconstruct extreme paleoweather conditions and paleoclimate changes from Permian Nippewalla Group (probably uppermost Leonardian/Kungurian; North America) ephemeral lake halite by using fluid inclusion homogenization temperatures to directly measure the water temperature when the halite precipitated; in these depositional settings, this is an excellent air temperature proxy. Extremely high temperatures to 73°C and large diurnal temperature ranges are evidenced in the lower Nippewalla Group, suggesting conditions more extreme than anywhere on Earth today. In contrast, the upper Nippewalla Group was cooler; maximum temperature was 43°C and diurnal temperature ranges were smaller, though even these conditions are similar to modern extremely hot environments. Comparison to prior studies suggests that these results may be indicative of regional patterns.

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1177244 MIDCONTINENT RIFT SYSTEM -- GEOLOGY
ANOXIA IN THE TERRESTRIAL ENVIRONMENT DURING THE LATE MESOPROTEROZOIC; V.M.Cumming, S.W.Poulton, A.D.Rooney and D.Selby (Durham Univ; Leeds Univ; Harvard Univ).. GEOLOGY v.41, no.5, pp.583-586, May 2013. (ISSN 1943-2682)

A significant body of evidence suggests that the marine environment remained largely anoxic throughout most of the Precambrian. In contrast, the oxygenation history of terrestrial aquatic environments has received little attention, despite the significance of such settings for early eukaryote evolution. To address this, we provide here a geochemical and isotopic assessment of sediments from the late Mesoproterozoic Nonesuch Formation of central North America. We utilize rhenium-osmium (Re-Os) geochronology to yield a depositional age of 1078 ± 24 Ma, while Os isotope compositions support existing evidence for a lacustrine setting. Fe-S-C systematics suggest that the Nonesuch Formation was deposited from an anoxic Fe-rich (ferruginous) water column. Thus, similar to the marine realm, anoxia persisted in terrestrial aquatic environments in the Middle to Late Proterozoic, but sulfidic water column conditions were not ubiquitous. Our data suggest that oxygenation of the terrestrial realm was not pervasive at this time and may not have preceded oxygenation of the marine environment.

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1177245 MIDDLE EAST -- GEOLOGY
REMNANTS OF MIOCENE FLUVIAL SEDIMENTS IN THE NEGEV DESERT, ISRAEL, AND THE JORDANIAN PLATEAU: EVIDENCE FOR AN EXTENSIVE SUBSIDING BASIN IN THE NORTHWESTERN MARGINS OF THE ARABIAN PLATE; E.Zilberman and R.Calvo (Israel Geological Survey).. JOURNAL OF AFRICAN EARTH SCIENCES v.82, pp.33-53, June 2013. (ISSN 1464-343X)

Relics of a thick, widely spread, fluvial sequence of Early Miocene age are scattered throughout southern Israel, eastern Sinai, the Dead Sea Rift Valley and the western margins of the Jordanian Plateau. These relics are mainly preserved in structural lows, karstic systems, and abandoned stream valleys. The paleogeography of this fluvial system was reconstructed based on the relations between the sequence remnants and the main structural and morphological features of the southeastern Levant region. Three sedimentary associations were identified in the Miocene sequence: a lower part dominated by locally derived clastic sediments; a thicker middle part, composed mostly of far-field allochthonous clastic sediments; and an upper part composed of local as well as allochthonous sediments. The two lower parts are regionally distributed whereas the upper part is syn-tectonic and confined to the Dead Sea basin and the Karkom graben in the central Negev. The composition of the far-field allochthonous sediments points to a provenance of Precambrian crystalline rocks of the Arabo-Nubian massif that were exposed along the uplifted shoulders of the Red Sea Rift as the upper drainage basin of the fluvial system. ... (c2013 Elsevier Ltd.) (Longer abstract available)

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1177246 MIDDLE EAST -- GEOLOGY
2D POROSITY MAPPING AND DISTRIBUTION IN AN ORGANIC RICH SHALE FROM THE MIDDLE EAST: PRELIMINARY RESULTS USING A BROAD ION BEAM - SCANNING ELECTRON MICROSCOPY (BIB-SEM) APPROACH; J.Klaver, G.Desbois and J.Urai (RWTH Aachen).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1738-2; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177247 MUT BASIN -- GEOLOGY
DIFFERENCES AND SIMILARITIES IN THE LATE MIOCENE GEOHISTORY OF THE MUT AND ADANA BASINS (SOUTHERN TURKEY): A RECORD OF SURFACE UPLIFT OF THE SOUTHEAST MARGIN OF THE CENTRAL ANATOLIAN PLATEAU; G.Radeff, D.Cosentino, T.F.Schildgen, G.Darbas and K.Gurbuz (Roma III Univ; Potsdam Univ; Kahramanmaras Sutcu Univ; Cukurova Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1691; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177248 NAPO PUTUMAYO BASIN -- GEOLOGY
THE COHEMBI FIELD: A NEW PLAY EMERGING IN THE PUTUMAYO BASIN OF COLOMBIA; R.G.Harris, D.Monroe, P.Rambold, R.Christiansen, E.Street, C.Pereira and H.Paz.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The Cohembi pool lies within the Suroriente block located in the Putumayo basin of Colombia, directly north of the border with Ecuador. Suroco Energy holds a working interest in this block contract, held jointly in consortia with Ecopetrol and Vetra Energy. The Cohembi pool was discovered by the Cohembi 1 well, drilled on a footwall structure of a reverse fault for Cretaceous Villeta U and T reservoirs in a conventional structural configuration in 1989. The Villeta U and T were wet, but 9 ft of sandstone play was discovered in the Villeta N, lying at the top of the Villeta, below an important unconformity between the Cretaceous and Tertiary sections. The N sand appeared as a thinner, secondary reservoir discovery, one which is the basis of a major new oilfield. The Cohembi 1 well was produced intermittently from the Villeta N until 2009, when the consortia group recognized that this single-well discovery was connected to a much larger oil resource than initially estimated. Following the acquisition of 3D seismic, extensive geophysical modelling and a play concept developed through a regional core and log analysis study, a two-well appraisal drilling program commenced in 2011. (Original not available from T.U.)

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1177249 NEIVA BASIN -- GEOLOGY
TENAX, TEMPRANILLO AND ARRAYAN, NEW OILFIELDS RESULT FROM AN EXPLORATORY PROCESS IN THE NEIVA SUBBASIN OF THE UPPER MAGDALENA VALLEY IN COLOMBIA [TENAX, TEMPRANILLO Y ARRAYAN, NUEVOS CAMPOS DE PETROLEO RESULTADO DE UN PROCESO EXPLORATORIO EN LA SUBCUENCA NEIVA DEL VALLE SUPERIOR DEL MAGDALENA EN COLOMBIA]; G.Lopez, E.Kairuz, A.Murcia and M.Garnica (Ecopetrol SA; ChevronTexaco).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 6 pp; In Spanish)

The basin of the Upper Magdalena Valley is one of the largest producers of oil in the midwest. With reassessment based on the Neiva sector information related to discovered oil fields, seismic and well information, a joint effort between management and exploration archaeological superintendence of Ecopetrol SA was held during the years 2006 and 2007, which evaluated the new exploratory expectations for this sector. The aim of this paper is to show how with the integrating of the different types of information acquired, knowledge from different areas of the company and the application of new ideas, exploration success was achieved and represented in fresh barrels of oil in an apparently well-studied area of mature production. The result of this work led to the perforation and discoveries from the Tenax-1, Tempranillo-1 and Arrayan-1 fields, producing the light hydrocarbon Caballos Formation.

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1177250 NEIVA BASIN -- GEOLOGY
TENAY-TENAX: HISTORY OF SUCCESS IN THE VSM [UPPER MAGDALENA VALLEY] [TENAY-TENAX: HISTORIA DE EXITO EN LA CUENCA DEL VSM]; M.Casanova, C.Posada, C.Saavedra and L.Falla (Ecopetrol SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

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1177251 NEPA BOTUOBA ANTICLINE -- GEOLOGY
THE STRUCTURE AND OIL AND GAS POTENTIAL PROSPECTS OF VENDIAN - LOWER CAMBRIAN DEPOSITS OF NEPSKO-BOTUOBINSKY ANTECLISE AND ITS FRAMING; N.K.Fortunatova, A.G.Shvets-Teneta-Gury and V.N.Larkin (All Russia Research Inst).. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.5, pp.54-61, 2010. (ISSN 0016-7894; In Russian)

This article reports oil and gas potential prospects of Vendian - Lower Cambrian deposits of Nepsko-Botuobinsky anteclise. On the basis of an elaborated formational model, a structural map of carbonate Vendian - Lower Cambrian deposits shows the distribution of prospective oil and gas complexes. The zones with different content of reservoir rocks in carbonate Vendian - Lower Cambrian deposits are given on the map. The main oil and gas prospects are associated with a zone of terrigenous Vendian complex, reef-bar system of Preobrazhensky horizon and reef system of Osinsky horizon.

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1177252 NEUQUEN BASIN -- GEOLOGY
IMPROVED RESERVOIR CHARACTERISTICS OF SENAL PICADA FIELD, NEUQUEN BASIN, SW. ARGENTINA: ASSESSING THE EOR POTENTIAL OF A MIXED CARBONATE / SILICICLASTIC SYSTEM; L.Gomez Rivarola, K.Mykietiuk, C.Bernhardt, M.Mendoza, P.Borghi, M.E.Garcia Briceno, G.Manestar and A.Thompson.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Senal Picada is located in the northeastern margin of the Neuquen Foreland Basin, SW. Argentina. The field was discovered in 1965 with 474 wells drilled to date. Oil production comes from Loma Montosa Fm (Valanginian) which is a 250 meter-thick carbonate/siliciclastic unit. Four intermediate scale accommodation cycles were recognized from core interpretation forming an overall regressive/transgressive trend. The building blocks of these main cycles are 10 smaller scale cycles. Basal cycles are characterized as mainly regressive, with dominant bioclastic packstones/grainstones. Upper cycles consist of interbedded siliciclastic and carbonatic beds. Transgressive cycles are characterized by oolitic grainstones, whereas cross to flat-bedded arkosic sands dominate the regressive cycles. With these findings, it was possible to build a robust full-field static model while simultaneously fine tuning the history match of the sector model. A number of incremental primary and secondary opportunities were identified. However by far the largest potential lies in the clean productive sand intervals with low clay content which as a result of this study, were identified as being continuous and hence having strong EOR potential. (Original not available from T.U.)

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1177253 NIGER DELTA AREA -- GEOLOGY
3D KINEMATICS OF GRAVITY DRIVEN DEFORMATION IN LARGE DELTAS AND CONTROL BY THE DELTA FRONT MIGRATION: THE CASE OF THE PLIO-PLEISTOCENE OF THE EASTERN NIGER DELTA; D.Rouby, T.Nalpas, P.Jermannaud, C.Robin, F.Guillocheau and S.Raillard (Rennes Univ; Total France).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-2048; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 2 pp; Abstract only)

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1177254 NIRIHUAU BASIN -- GEOLOGY
NEW EXPLORATION MODEL AND DEFINITION OF THE PETROLEUM SYSTEMS OF THE NIRIHUAU BASIN, PATAGONIAN CORDILLERA, ARGENTINA [NUEVO MODELO EXPLORATORIO Y DEFINICION DE LOS SISTEMAS PETROLEROS DE LA CUENCA DE NIRIHUAU, CORDILLERA PATAGONICA, ARGENTINA]; L.M.Bernardo, G.Zamora, A.Folguera and T.Zapata (YPF; Repsol; Buenos Aires Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 9 pp; In Spanish)

The expectations of finding commercial oil accumulations in the Nirihuau basin were not high. The reason for this low exploratory potential was the high risk of oil charge as a consequence of the low thermal evolution of the source rock present in the basin, despite existence of an oil source. The integration of surface and subsurface geological information of the Nirihuau basin have enabled a new tectonosedimentary and structural interpretation that has brought new exploratory prospects. The new tectonosedimentary evolution model suggests that the Nirihuau basin began to generate in the Paleocene-Eocene Foyel Group deposits during an extensive event associated with the subduction of the Nazca plate beneath the South American plate. The deposits Foyel Group were subsequently covered by the volcaniclastic Ventana Fm. sequences.

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1177255 NORTH ATLANTIC OCEAN -- GEOLOGY
DEVELOPMENT PECULIARITIES OF THE MAGMATISM SYNCHRONOUS TO THE FORMATION OF THE NORTH ATLANTIC PASSIVE MARGINS; E.N.Melankholina and N.M.Sushchevskaya (Russian Academy Sciences; Vernadsky Inst Geochem).. GEOTECTONICS v.47, no.2, pp.75-92, March 2013. (ISSN 1556-1976)

Magmatism synchronous to the formation of passive margins of the North Atlantic is discussed. This paper is based on the published data on the Norwegian–Greenland tectonotype of volcanic margins and the West Iberia–Newfoundland tectonotype of nonvolcanic margins. In the first tectonotype the hot rifting and active magmatism gave rise to the formation of a thick crust at the margin and the adjacent oceanic zone. The second tectonotype is characterized by cold amagmatic rifting and slow initial spreading, which led to the widespread occurrence of ancient continental complexes and serpentinized mantle rocks at the margin, as well as the thin and disturbed oceanic crust nearby. In order to characterize the magmatism and initial oceanic opening, the geological and geochemical data pertaining to the reference sections chosen for each margin were compared in detail. In particular, the geochemical and isotopic data on the flood basalts and suites of parallel dikes related to the pre and synbreakup magmatic phases were involved for the Norwegian–Greenland region. The predominance of tholeiites enriched in lithophile elements and radiogenic isotopes, as well as a significant contribution of continental material to them, are typical of the volcanic margins.

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1177256 NORTHEAST PACIFIC OCEAN -- GEOLOGY
FAULT-LINE UPLIFTS IN THE NORTHEASTERN PACIFIC; Yu.M.Pushcharovsky (Russian Academy Sciences).. GEOTECTONICS v.47, no.2, pp.67-74, March 2013. (ISSN 1556-1976)

The nearly latitudinal giant fracture zones in the northeastern Pacific Ocean are accompanied by narrow fault line uplifts making up tectonic couples that strike for thousands of kilometers. They are especially distinctly expressed in the gravity map of the World Ocean. As is shown in the paper, a compensation mechanism of deep mass displacement operates in the uplift–deepwater trench system. The uplifts have similar asymmetric structures, which reflects the long term unidirectional effect of the deep geodynamic stress. In my opinion, the system of the fault line uplifts began to form at the Cretaceous–Cenozoic boundary.

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1177257 NORWAY -- GEOLOGY
APPLICATION OF STACKING TECHNIQUES TO 3-D WIDE-ANGLE REFLECTION AND REFRACTION DATA FROM SOUTHERN NORWAY; B.Loidl, M.Behm and H.Thybo (Vienna Univ Technology; Copenhagen Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1414; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177258 NOVA SCOTIA -- GEOLOGY
TREMADOCIAN (LOWER ORDOVICIAN) SEA-LEVEL CHANGES AND BIOTAS ON THE AVALON MICROCONTINENT; E.Landing and R.A.Fortey (New York State Museum; London Museum).. JOURNAL OF PALEONTOLOGY v.85, no.4, pp.678-694, July 2011. (ISSN 0022-3360)

The Chesley Drive Group, an Upper Cambrian – Lower Ordovician mudstone-dominated unit, is part of the Ediacaran–Ordovician cover sequence on the North American part of the Avalon microcontinent. The upper Chesley Drive Group on McLeod Brook, Cape Breton Island (previously McLeod Brook Formation), has two lithofacies-specific Tremadocian biotas. An older low-diversity benthic assemblage (shallow burrowers, Bathysiphon, phosphatic brachiopods, asaphid trilobites) is in lower upper Tremadocian green-gray mudstone. This wave-influenced, slightly dysoxic facies has Bathysiphon–brachiopod shell lags in ripple troughs. The upper fauna (ca 483 ± 1 Ma) is in dysoxic-anoxic (d-a), unburrowed, dark gray-black, upper upper (but not uppermost) Tremadocian mudstone with a &quote;mass kill&quote; of the olenid Peltocare rotundifrons (Matthew)--a provincial trilobite in Avalonian North America that likely tolerated low oxygen bottom waters. Scandodus avalonensis Landing n. sp. and Lagenochitina aff. conifundus (Poumot), probable nektic elements and the first upper Tremadocian conodont and chitinozoan reported from Avalon, occur in diagenetic calcareous nodules in the dark gray-black mudstone. An upper Tremadocian transition from lower greenish to upper black mudstone is not exposed on McLeod Brook, but is comparable to a coeval green-black mudstone transition in Avalonian England.

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1177259 OIL AND GAS MIGRATION -- GEOLOGY
REGIONAL MIGRATION MODELS AS EXPLORATORY TOOLS: EXAMPLES FROM COLOMBIA [MODELOS REGIONALES DE MIGRACION COMO HERRAMIENTA EXPLORATORIA: EJEMPLOS EN COLOMBIA]; R.Aguilera (RA Geologia EU).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

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1177260 ORMEN LANGE FIELD -- GEOLOGY
ORMEN LANGE FAN DEPOSITION: EVALUATION OF SOURCE AND PALAEO-BATHYMETRY SCENARIOS USING PROCESS-BASED MODELLING; R.Basani, E.W.M.Hansen, M.Grecula, S.Price and A.Cantelli (Complex Flow Design AS; Norske Shell A/S; Shell Oil).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-08; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

The deterministic software MassFLOW-3D(TM) has been developed to construct a 3D model for the simulation of turbidity currents. All hydraulic properties of the flow and its responses to topography can be monitored in 3D. It can fill the gap between small laboratory and large field scale. The presented study is aimed to evaluate the flow behavior and distribution of deposits in the Maastrichtian-Danian sequence of the Ormen Lange system. In order to run a 3D numerical simulation, the palaeo-bathymetry at time of deposition had to be reconstructed. This process, combined to the observation of the sediments thickness in the field, led to the creation of alternative surfaces. In addition, multiple grain sizes were represented in the model. Different realizations observing different possible scenarios aimed to reproduce the stratigraphy observed from the core samples were performed. The simulations produced deposits showing an overall good match with what was observed in the field, providing a range of physically plausible scenarios of reservoir development. Nonetheless the match at a well level was not perfect. This is due to the limited number of flows performed, as well as to the uncertainties inherent in the paleobathymetric reconstruction and the definition of initial flow characteristics. (Longer abstract available)

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1177261 PANGAEA -- GEOLOGY
THE FORMATION OF PANGEA; G.M.Stampfli, C.Hochard, C.Verard, C.Wilhem and J.von Raumer.. TECTONOPHYSICS v.593, pp.1-19, 5/8/2013. (ISSN 0040-1951)

The making of Pangea is the result of large-scale amalgamation of continents and micro-continents, which started at the end of the Neoproterozoic with the formation of Gondwana. As pieces were added to Gondwana on its South-American, Antarctica and Australia side, ribbon-like micro-continents were detached from its African and South-Chinese side: Cadomia in the late Neoproterozoic, Avalonia and Hunia in the Ordovician, Galatia in the Devonian and Cimmeria in the Permian. Cadomia was re-accreted to Gondwana, but the other ribbon-continents were accreted to Baltica, North-China, Laurussia or Laurasia. Finding the origin of these numerous terranes is a major geological challenge. Recently, a global plate tectonic model was developed together with a large geological/geodynamic database, at the Lausanne University, covering the last 600 Ma of the Earth’s history. Special attention was given to the placing of Gondwana derived terranes in their original position, using all possible constraints. We propose here a solution for the Variscan terranes, another paper deals with the Altaids. ... (c2013 Elsevier B.V.) (Longer abstract available)

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1177262 PECHORA SEA -- GEOLOGY
TYPES AND PROPERTIES OF LOWER PERMIAN AND DEVONIAN RESERVOIRS ON THE LAND AND IN OFFSHORE PECHORA SEA; K.I.Bagrintseva, V.V.Strelchenko and A.V.Stupakova (All Russia Research Inst; Russian State Univ; Moscow State Univ).. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.5, pp.62-76, 2010. (ISSN 0016-7894; In Russian)

Materials given in this article allowed to conclude about development within the northern part of Varandei-Adzvinsky zone of carbonate reservoirs having high reservoir properties favorable for oil and gas accumulations formation. The void space in such reservoirs besides primary porosity is associated with wide development of jointing and cavernous extent that allows to suggest the high oil and gas prospects of the land and offshore parts of Varandei-Adzvinsky zone. Similarity of the present-day structure and development during the main stages of geological history of offshore and inland parts, the presence of productive oil-and-gas-bearing complexes in the section like developed on the land, the presence of high capacity reservoirs, the same lithofacial composition of productive strata, identity of pools structure--make it possible to substantiate oil and gas potential of Paleozoic deposits on the structures of Pechora Sea. The article presents results of complex core study of oil fields of Sorokin's swell and Medynsky carried out in VNIGNI and a prognosis of reservoirs quality is given for offshore part of Varandei-Adzvinsky structural zone.

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1177263 PLANNING -- GEOLOGY
PLANNING OF GEOLOGICAL-TECHNICAL ACTIONS; A.A.Kazakov (Computer Oil Technologies).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.48-52, March 2009. (ISSN 0028-2448; 8 refs; In Russian)

The problem of insufficient analysis of results of carrying out geological-technical actions is considered. It is marked that efficiency of such actions is regularly overestimated owing to incorrect approaches to an effect estimation. Advantages of information-diagnostic system BDWell at the organization of system of the analysis and the account of carrying out geological-technical actions are shown.

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1177264 POLAND -- GEOLOGY
NEW DEVONIAN MICROCONCHIDS (TENTACULITA) FROM THE HOLY CROSS MOUNTAINS, POLAND; M.Zaton and W.Kraczynski (Silesia Univ).. JOURNAL OF PALEONTOLOGY v.85, no.4, pp.757-769, July 2011. (ISSN 0022-3360)

Tentaculitoid microconchid tubeworms from Devonian (uppermost Emsian – upper Givetian) deposits of the Holy Cross Mountains, Poland, include three new species from stratigraphically well-constrained lithological units: Polonoconchus skalensis n. gen. n. sp., Palaeoconchus sanctacrucensis n. sp. and Microconchus vinni n. sp. The microconchids inhabited fully marine environments during transgressive pulses, as is evidenced from facies and associated fossils. Polonoconchus skalensis n. gen. n. sp. and Palaeoconchus sanctacrucensis n. sp. inhabited secondary firm- to hard-substrates in deeper-water, soft-bottom environments. They developed planispiral, completely substrate-cemented tubes and planispiral tubes with elevated apertures, which is indicative of environments where sedimentation rate is low but competition for space (by overgrowth) may be high. Microconchus vinni n. sp., on the other hand, developed a helically coiled distal portion of the tube as a response to a high sedimentation rate. As the taxonomic composition of Devonian microconchids is poorly recognized at both regional and global scales, this new material contributes significantly to our understanding of the diversity of these extinct tube-dwelling encrusters.

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1177265 PROGRESO BASIN -- GEOLOGY
TECTONOSTRATIGRAPHIC AND PETROLEUM SYSTEM EVOLUTION OF THE PROGRESO BASIN IN ECUADOR AND PERU [EVOLUCION TECTONOESTRATIGRAFICA Y SISTEMA PETROLIFERO DE LA CUENCA PROGRESO EN ECUADOR Y PERU]; R.Aguilar, A.M.Aleman, M.Ordonez, G.Montenegro, J.Noya and R.Ortega (Petroleos Venezuela SA; Petroproduccion).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 12 pp; In Spanish)

The Progreso Basin in southwestern Ecuador and northwestern Peru has had a complex evolution that began in the Jurassic with the accretion of Paleozoic terranes followed later by accretion of Cretaceous terranes of multiple origin (oceanic plateau, oceanic island arc, dorsal cortex of oceanic marginal basins, etc..) between the Campanian and Eocene. The subsidence of the ante-arc Paleogene basin ended in Ecuador during the Middle Eocene contraction characterized by coralline algae deposition on structural highs. During the Oligocene, the ante-arc basin was modified by a NE-SW extension associated with the development of a pull-apart basin which resulted in the Progreso Basin. A second episode of NE-SW extension during the terminal phase of the Late Miocene incision is associated with the Guayaquil Riedels system of the Pallatanga/Peltetec Fault system. These synthetic Riedels caused the opening of the Gulf of Guayaquil and the development of Late Miocene and Pleistocene depocenters known as the Guayaquil-Tumbes basins, developed on continental and oceanic crust, respectively. The kinematics of this fault system is responsible for the formation of transtensive and transpressive structures.

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1177266 PUNTA DEL ESTE BASIN -- GEOLOGY
INFLUENCES ON THE ATLANTIC CONTINENTAL SHELF (URUGUAY-ARGENTINA)?: CONTROLS ON THEIR EXPLORATION POTENTIAL [INFLUENCIAS DE LA TECTONICA ANDINA SOBRE LA PLATAFORMA CONTINENTAL ATLANTICA (URUGUAY-ARGENTINA)?: CONTROLES SOBRE SU POTENCIAL EXPLORATORIO]; E.A.Rossello, H.de Santa Ana, O.Lopez-Gamundi and G.Veroslavsky (CONICET; ANCAP; Hess; Republica Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 6 pp; In Spanish)

The shallow (0-200 m) part of the continental shelf of Uruguay and Argentina along the Buenos Aires province has been affected by significant extension that created a series of depocenters known, from north to south, as the Pelotas, Punta del Este, Salado and Colorado basins. The initial fill phase of these depocenters is characterized by Jurassic to Cretaceous sedimentary deposits associated to a rift phase that initiated the opening of the South Atlantic. This initial fill is followed by a passive margin phase characterized by prograding clinoforms during the Tertiary. These basins have a heterogeneous basement made up of (1) Paleozoic sedimentary rocks, equivalent to those exposed in the Paraná (Brazil, Uruguay) and Karoo (South Africa) basins and the Sierras Australes of Buenos Aires (Argentina) and, (2) crystalline rocks as inferred by highs in the gravity maps. Recent 2D seismic data acquired by ANCAP allowed us to recognize new structures related to Andean transpressional reactivation of earlier rift structures. This reactivation was facilitated by, and located along, previous extensional faults that acted as possible mechanical anisotropies.

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1177267 RESERVOIR CHARACTERIZATION -- GEOLOGY
CHARACTERIZATION OF NATURALLY FRACTURED HYDRAULIC UNITS WITH SHALY CONTENT; T.I.Elkewidy.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

A new approach to characterize hydraulic (flow and no flow) units in reservoirs with laminated, structural, dispersed, or general shaly contents and natural fractures is introduced in this study. Here, reservoirs with shaly contents are characterized by normalizing true formation resistivity in terms of the various shaly correlations. This normalized resistivity is then used in a graphical cross-plotting technique to yield unique parameters about the hydraulic units. Permeability is estimated for the flow unit using any of three selected/generalized models in terms of the cementation exponent &quote;m&quote;. A new permeability model is also utilized in the characterization process. The concept of reservoir quality index, RQI, is adapted for shaly formations where a shale zonation index, SZI, is uniquely generated to delineate each hydraulic unit. Shale-free formations and formations with laminated or dispersed shaly contents are shown to exhibit characteristic slopes within the graphical solution. This paper demonstrates the integration of laboratory information along with conventional well log data to define reservoir bodies with shaly contents at the wellbore and documents the characterization technique. (Original not available from T.U.)

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1177268 RESERVOIR FLUID FLOW -- GEOLOGY
BUILDING A COMPUTATIONAL MODEL FOR CALCULATING A PROFILE OF REGIONAL EFFORTS USING THE FINITE ELEMENT METHOD AS A BASE IN THE STRUCTURAL MODELING OF ASSOCIATED FLUID MIGRATION [GENERACION DE UN MODELO COMPUTACIONAL PARA EL CALCULO DEL PERFIL DE ESFUERZOS REGIONAL USANDO COMO BASE EL METODO DE ELEMENTOS FINITOS (MEF) EN EL MODELAMIENTO ESTRUCTURAL ASOCIADO A MIGRACION DE FLUIDOS]; E.Bastidas Rueda, O.Y.Duran Triana, E.R.Santafe Rangel and C.C.Piedrahita (Inst Colombiano Petroleo).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

During the formation of the geological structure, stress and pore pressure profiles are altered, inducing changes in the distribution of fluid saturation. The integration of the finite element method in solving the associated PDE phenomenon indicates the probable routes of migration and hydrocarbon accumulation.

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1177269 RESERVOIR FLUID FLOW -- GEOLOGY
GENERATION OF A COMPUTATIONAL MODEL OF FLUID FLOW IN POROUS MEDIA BASED ON FINITE ELEMENT METHOD FOR MODELING MIGRATION OF FLUIDS IN SEDIMENTARY BASINS; E.R.Santafe Rangel, N.E.Quintero V., C.Alvarez, C.C.Piedrahita and D.Garcia (EOS-DTH; Rio de Janeiro Fed Univ; Ecopetrol-ICP).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177270 RESERVOIR MODEL -- GEOLOGY
NEXT-GENERATION STATISTICAL METHODS FOR RESERVOIR MODELING: CHALLENGES AND FUTURE POTENTIAL; J.Kane and A.O'Halloran (Shell Int Explor & Prod Co; Shell Explor & Prod BV).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 5 pp)

Simulating a geologically realistic reservoir leads to a better assessment of uncertainty of oil volumetrics, as well as more accurate fluid flow models. Geostatistical methods have been used for over 20 years to model the variability of rock properties in reservoirs but have shown themselves to be inadequate for simulating realistic geology. More recently, multi-point statistics has been used to capture geologic features from training data and then simulate visually similar models, either unconditionally, or conditioned to seismic and well data. We focus on a heuristically similar method known as nonparametric Markov random fields to model geology. This method has proven itself effective at capturing the texture of 2-D images in computer vision applications, but suffers from computational limitations when trying to simulate larger scale patterns. In order to overcome these problems we additionally represent our reservoir model in a multi-scale fashion, where large-scale geologic features are simulated first, then, conditioned on these, finer-scale features are recursively simulated down to the finest scale. To illustrate the method we use a cross section from a synthetic sub-marine channel model consisting of three discrete categories as our training data. We compare monoscale and multi-scale methods and examine modifications that can be used to increase algorithm speed.

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1177271 RESOURCE ASSESSMENT -- GEOLOGY
APPROACHES TO DISTINGUISHING MINERAL - RAW MATERIAL CENTRES OF OIL AND THEIR RESOURCE BASE DEVELOPMENT MANAGEMENT; S.E.Donskoi and M.N.Grigoriev (Russian Fed Min Nat Rsces).. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.5, pp.24-28, 2010. (ISSN 0016-7894; In Russian)

The principles of distinguishing and localization of mineral - raw material centres (objects of program-purpose planning in sphere of subsurface geological study, reproduction and use of mineral - raw material base) are described. Consideration is given to the structure of their resource base in accordance with the affirmed &quote;Strategy of geological branch development up to 2030&quote; and tasks of exploration activity planning and licensing at different stages of their development.

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1177272 ROMASHKINO OIL FIELD -- GEOLOGY
GEOLOGICAL STRUCTURE FEATURES AND PROSPECT OF DEVELOPMENT OF ROMASHKINSKOYE OILFIELD GIVETIAN DEPOSITS; N.V.Muzalevskaya, R.T.Shakirova and O.V.Razuvaeva (TatNIPIneft).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.18-21, March 2009. (ISSN 0028-2448; In Russian)

The oil pool pattern of Ardatovsky and Vorobyovsky horizons of Givetian stage in limits of the Romashkinskoye oilfield is given. Commercial oil content in reservoir beds of Vorobyovsky, Ardatovsky and Mullinsky horizons is established. Their lithologic stratigraphic characteristic is considered. The methods for optimizing the development of pools in terrigenous deposits of Givetian stage are offered.

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1177273 RUBIALES FIELD -- GEOLOGY
HYDRODYNAMIC, STRUCTURAL AND STRATIGRAPHIC ASPECTS OF THE RUBIALES FIELD, LLANOS ORIENTALES BASIN, COLOMBIA [ASPECTOS HIDRODINAMICOS, ESTRUCTURALES Y ESTRATIGRAFICOS DEL CAMPO RUBIALES, CUENCA DE LOS LLANOS ORIENTALES, COLOMBIA]; Y.Gomez, F.Yoris, J.Rodriguez, F.Portillo and Y.Araujo (Pacific Rubiales Energy).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 7 pp; In Spanish)

The Rubiales Field, located in the southeast of the Llanos Oriental Basin, is one of the areas with major heavy oil reserves in Colombia (12° API). The constituent sandstone reservoirs of the lower part of Carbonera Formation were deposited in a predominantly fluvial environment in the Late Eocene - Early Oligocene. The initial structural interpretation of the field, based on 2D seismic, indicated a large monocline with little added structural complexity. Additionally, the development of reservoir pressure assumed with uniform behavior and the oil-water contact is found at different depths along the field, suggesting the theory that the trapping mechanism is hydrodynamic. A recent detailed stratigraphic study shows signs of a complex facies architecture, which helps to explain differences in the depths of the oil-water contact in some areas of the field.

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1177274 RUSSIA -- GEOLOGY
THE BASIC PROBLEMS OF GEOLOGICAL STUDY OF SUBSURFACE AND HYDROCARBON RESERVES INCREASE OF RUSSIAN FEDERATION; A.A.Ledovskikh, P.V.Sadovnik, P.A.Khlebnikov, A.I.Varlamov, A.P.Afanasenkov, V.I.Petersilie, B.A.Soloviev and O.M.Mkrtchyan.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.5, pp.9-23, 2010. (ISSN 0016-7894; In Russian)

As a result of evaluating the state of HC resource potential and results of exploration activity for oil and gas through all the financing sources, the main problems of geological study of subsurface and increasing HC reserves in all regions of the Russian Federation and water areas of inland and marginal seas were revealed. It was established that an insufficient level of oil production compensation by increasing reserves due to recent discovery of fields with limited reserves should replace exhausted large fields with declining production. It is necessary to carry out regional exploration works by means of federal budget in areas of potential development of large promising local objects, including territories of old oil and gas producing provinces (West Siberian, Volga-Urals, Pre-Caspian, Timano-Pechora) and new poorly developed provinces (Enisei-Anabar, Leno-Tungus) as well as in offshore areas.

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1177275 RUSSIA -- GEOLOGY
THE STATE AND PROBLEMS OF SUBSURFACE USE FOR HYDROCARBON RAW MATERIAL IN RUSSIAN FEDERATION; B.I.Davidenko, V.I.Poroskun and G.N.Rosanova (All Russia Research Inst).. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.5, pp.29-34, 2010. (ISSN 0016-7894; In Russian)

This article presents an analysis of the licensing system of subsurface use for HC raw material in The Russian Federation. Data are given about the changing number of subsurface users, amount of acting licenses, changing portion of acting licenses of different type, number of auctions and tenders conducted. It was concluded that the state system of subsurface licensing for HC raw material has allowed to provide the fast and efficient transition from subsurface use mechanism based on plan economics to market conditions. The reasons of declining efficiency of the acting licensing system in Russia are shown.

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1177276 RUSSIA -- GEOLOGY
RESOURCE POTENTIAL OF HYDROCARBONS: CURRENT STATE, PROBLEMS, WAYS OF SOLUTION; M.I.Lodzhevskaya, V.I.Petersilie, M.N.Kravchenko and M.I.Shevtsova (All Russia Research Inst).. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.5, pp.35-43, 2010. (ISSN 0016-7894; In Russian)

This article deals with the HC resource potential of Volga-Ural, Timano-Pechora, North-Caucasus and East Siberian oil and gas provinces. The extent of exploration maturity of ultimate potential resources as of 01.01.2009 is given. It is concluded that a necessity of further development of low studied and difficult objects will require re-equipment of material-technical base by modern equipment.

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1177277 RUSSIA -- GEOLOGY
PRESENT-DAY STATE OF STOCK OF OBJECTS PREPARED FOR DRILLING AND PROSPECTIVE HYDROCARBON RESOURCES OF RUSSIAN FEDERATION AND PROBLEMS OF THEIR MONITORING; A.B.Krivitsky, V.I.Petersilie and A.E.Starobinets (All Russia Research Inst).. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.5, pp.44-53, 2010. (ISSN 0016-7894; In Russian)

It is noted that presently in Rosnedra system a unified system of analysis for deep drilling the oil and gas potential objects is absent. Information about prepared objects is required for recording state balance, exploration activity planning of state budget, monitoring of licensed activity, etc. A required regulation and program-methodical basis is now required for monitoring activity of the stock of objects prepared for deep drilling. To obtain reliable and comprehensive information about the HC resource base, it is necessary to continue working on accounting of both newly prepared objects within distributed and not distributed subsurface funds and earlier prepared ones.

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1177278 SAHARA DESERT -- GEOLOGY
EOCENE EXHUMATION OF THE TUAREG SHIELD (SAHARA DESERT, AFRICA); S.Rougier, Y.Missenard, C.Gautheron, J.Barbarand, H.Zeyen, R.Pinna, J.P.Liegeois, B.Bonin, A.Ouabadi et al. (Paris Sud XI Univ).. GEOLOGY v.41, no.5, pp.615-618, May 2013. (ISSN 1943-2682)

The arch-and-basin geometry that characterizes North Africa was achieved at the end of Paleozoic times. It has been subsequently reactivated during the Mesozoic-Cenozoic with, in particular, the development of large topographic anomalies. Among these, the Tuareg Shield forms a topographic high in which the Pan-African basement reaches 2,400 m above sea level (Hoggar core). While Cretaceous sedimentary remnants suggest a possible stage of subsidence during the Mesozoic, currently the area forms a swell, emphasized by Cenozoic volcanic episodes since 35 Ma. In this context, we present the first apatite (U-Th)/He thermochronological data acquired across this swell, with mean ages ranging from 78 ± 22 Ma to 13 ± 3 Ma. These results demonstrate the existence of a widespread Eocene exhumation of the shield before volcanic activity began, which reflects large-scale vertical processes. In the northeastern part of the swell, Cretaceous continental sedimentary remnants unconformably lying on the basement close to our samples evidence that they were near the surface at that time.

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1177279 SAN JORGE GULF BASIN -- GEOLOGY
EVALUATING HYDROCARBON MIGRATION PATHS USING FAULT DISPLACEMENT DISTRIBUTIONS; P.Giampaoli.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The analysis of displacement distributions on an extensional faults system is explored to evaluate hydrocarbon migration paths in a productive area located on the northern flank of the San Jorge Basin, Argentina. In this area, most hydrocarbon traps are located in the footwall of north-dipping normal faults, where reservoirs are folded and sealed against low permeability-hanging wall units. Postulated charging mechanisms include lateral migration from a proven southward kitchen and vertical migration through faults from a hypothetical deep-seated local source pod. The throw of the reservoir section has been measured along 123 seismic sections, crossing a total of 18 faults, six of which account for most of the total displacement. Displacement-fault length plots suggest that isolated faults may have linked early in the propagation history. At the same time, transfer zone development facilitates the emplacement of igneous dikes and sills. Displacement contour maps reveal that faults initially nucleated close to the reservoir section and propagated downwards, but did not connect with pre-existent faults. Consequently, vertical migration from a hypothetical deep-seated source pod seems to be unlikely. (Original not available from T.U.)

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1177280 SAN JUAN -- GEOLOGY
POTENTIAL OIL PLAY IN A NON-PRODUCTIVE BASIN, SAN JUAN, ARGENTINA [POTENCIAL PLAY PETROLERO EN UNA CUENCA NO PRODUCTIVA, SAN JUAN, ARGENTINA]; G.Z.Valcarce, M.Cervera, L.M.Bernardo, S.Barredo, A.Salinas and S.Reinante (Repsol YPF; Buenos Aires Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 8 pp; In Spanish)

One of the current challenges facing the industry is to explore border areas in non-productive basins that have the necessary elements to have generated economic accumulations for opening new oil regions. This requires the realization of multidisciplinary work. In this case, the work involves integrating seismic interpretation, surface data, gravimetric records and previous analysis in the intermountain basin in the province of San Juan, Argentina. This has allowed a structural and tectonosedimentary scheme for the deposit of Triassic sequences which would have accrued in small separate depocenters isolated by high structures.

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1177281 SCANDINAVIA -- GEOLOGY
SEDIMENT PROVENANCE SIGNATURES IN THE MIDDLE ALLOCHTHON OF THE SCANDINAVIAN CALEDONIDES: EVIDENCE OF SVECONORWEGIAN SOURCE TERRAINS; D.G.Gee, A.Ladenberger, S.Claesson, J.Majka, P.Robinson, P.G.Andreasson and Y.Be'eri-Shlevin (Uppsala Univ; Swedish Museum; Norway Geological Survey).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14102-1; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177282 SEAL (GEOLOGY) -- GEOLOGY
HOW SEALED IS A SEAL?: HIGH-RESOLUTION SEAL INTEGRITY EVALUATION USING 3D SEISMIC DATA; G.Yu (Geotrace Technologies).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 5 pp; Abstract only)

[For information only - meeting paper abstract]

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1177283 SEISMIC DATA PROCESSING -- GEOLOGY
PREDICTION OF HYDROCARBON ACCUMULATIONS USING THE NONLINEAR INVERSION OF SEISMIC DATA; S.Eladj and S.A.Ouadfeul (Boumerdes Univ; Algerian Petroleum Inst).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-13715-2; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177284 SIBERIAN LOWLAND -- GEOLOGY
STRUCTURE AND OIL AND GAS POTENTIAL WITH OUTLINING LARGE OBJECTS OF OIL PROSPECTING OF BATHONIAN REGIONAL RESERVOIR OF NORTH OF WEST SIBERIAN OIL- AND GAS-BEARING PROVINCE; G.G.Shemin and N.V.Pervukhina.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.1, pp.13-19, 2009. (ISSN 0016-7894; 5 refs; In Russian)

Procedures of evaluating the quality of Bathonian regional reservoir and quantitative evaluation of its oil and gas potential prospects are presented. Composition, structure, and formation conditions of the reservoir's deposits are examined. Rock and fluid system properties of reservoirs and their thickness distribution along the area are considered. Quality of reservoir and its components--impermeable bed and permeable complex are determined. The authors report results of quantitative evaluation of oil and gas potential and provide characteristics of the largest exploration targets.

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1177285 SIBERIAN LOWLAND -- GEOLOGY
PALEOGEOGRAPHIC CRITERIA OF RESERVOIR DISTRIBUTION IN MIDDLE-UPPER JURASSIC DEPOSITS OF SOUTH OF WEST-SIBERIAN OIL-AND-GAS-BEARING BASIN; E.M.Khabarov, P.A.Yan, L.G.Vakulenko, A.Yu.Popov and S.F.Plisov.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.1, pp.26-33, 2009. (ISSN 0016-7894; 3 refs; In Russian)

Comprehensive sedimentological study of Middle-Upper Jurassic deposits in southeast West-Siberia sedimentary basin was carried out. Their structure and composition were established, sedimentation environment along with compiling paleogeographic schemes were reconstructed. These studies showed that on the territory under consideration in Late Bathonian, Callovian and Late Jurassic, a periodic change of contrast sedimentation environments from continental to moderate deep water shelf occurred. As a whole, a trend of increased role of sea environment was observed. It was concluded that among principal factors controlling basin evolution were eustatic variations of sea level and variations in rate of siliciclastic material supply. Tidal-ebb currents and wave activity had a pronounced effect on redistribution of material within the basin. It was found out that on the territory studied there could be simultaneously accumulated both continental and marine deposits. Lithological associations of various origins with the highest reservoir properties were revealed, and prognosis of their distribution in the section and along laterals is presented.

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1177286 SIBERIAN LOWLAND -- GEOLOGY
ENVIRONMENTS OF RESERVOIR FORMATION OF Yu2 HORIZON IN THE NORTHEASTERN PART OF KHANTEI HEMIANTECLISE (WEST SIBERIA); V.A.Kasanenkov, A.Yu.Popov, L.G.Vakulenko, L.S.Sayenko and P.A.Yan.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.1, pp.46-53, 2009. (ISSN 0016-7894; 5 refs; In Russian)

The accomplished investigations showed that in Middle-Late Bathonian time in the territory of northeast of Khantei anteclise there occurred a general change of sedimentation environment caused by gradual marine transgression from the north. Position in plan of the main large relief elements over all periods of Yu2 horizon accumulation in the studied territory was practically constant. Only their sizes and amplitudes on the background of regional trend of gradual surface leveling were changed. At the stage of continental accumulation of Yu2 horizon, the four river systems characterized by inherited evolution can be distinguished. The main controlling element of this system was an axial part of paleowatershed of Nizhnevartovsky high extending in a northwestern direction. At the end of Middle and/or start of Late Bathonian was recorded the beginning of gradual transgression completed in Callovian by forming argillaceous Lower Vasyugan suite. In compliance with complex history of Yu2 horizon formation, the aleurite-sandy bodies and/or reservoirs were distributed very irregularly.

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1177287 SIBERIAN LOWLAND -- GEOLOGY
EVOLUTIONARY HISTORY OF JURASSIC STRUCTURAL STAGE AND OIL AND GAS PROSPECTS OF SOUTHERN OB-IRTYSH INTERFLUVE; S.V.Ryzhkova.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.1, pp.54-63, 2009. (ISSN 0016-7894; 5 refs; In Russian)

The history of Jurassic structural stage evolution of the southern areas of Ob-Irtysh interfluve in Mesozoic and Cenozoic was reconstructed on the basis of structural maps analysis of main geological datum marks and complexes of rocks between them including facies characteristics of the latter. As a result it was determined a direction of tectonic movements of large positive and negative tectonic elements outlined by structural surfaces of reflection horizon IIa (Bazhenov suite's bottom). It was found that a predominantly negative evolution tendency of the central part of the Nurol megatrough has favoured the fact that the Bazhenov suite within its limits was located most of the time inside the main zone of oil generation. The recent structural plan of Bazhenov suite's bottom is very significant for outlining oil and gas accumulation sites in Upper Jurassic oil and gas-bearing complex since the nature of recent tectonic movements was responsible for the hydrocarbon migration directions from Nurol megatrough.

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1177288 SIBERIAN LOWLAND -- GEOLOGY
PALEOGEOGRAPHY OF BAJOCIAN-BATHONIAN FORMATIONS OF THE SOUTHEASTERN AND CENTRAL AREAS OF WEST SIBERIAN OIL- AND GAS-BEARING PROVINCE; O.V.Zolotova.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.1, pp.64-69, 2009. (ISSN 0016-7894; 6 refs; In Russian)

Kontorovich et al have drawn a paleogeographic map of Mesozoic and Cenozoic eras stage-by-stage for the entire West Siberia territory. Recently it was required to undertake more detailed facies analysis concerning the most interesting areas of the West Siberia sedimentary basin to reveal hydrocarbon traps in poorly investigated Lower and Middle Jurassic sections. For this purpose the authors carried out quite a detailed paleofacies reconstructions using well-logging data (more than 1000 wells) resulted in two paleogeographic schemes of southeastern and central areas of the West Siberia geosynclise for Bajocian and Bathonian eras of Middle Jurassic epoch.

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1177289 SIBERIAN LOWLAND -- GEOLOGY
GEOLOGICAL STRUCTURE AND OIL AND GAS POTENTIAL PROSPECTS OF CALLOVIAN-OXFORDIAN FORMATIONS OF OMSK PRIIRTYSH AREA OF WEST SIBERIA OIL-AND-GAS-BEARING PROVINCE; O.V.Elisheva.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.1, pp.70-75, 2009. (ISSN 0016-7894; 5 refs; In Russian)

A major part of the west Siberian sedimentary basin is currently an object of oil and gas prospecting activity except for marginal territories such as Omsk Priirtysh region which are still insufficiently investigated by modern, detailed seismic prospecting and deep drilling. Among the main exploration and production objects on the south of West Siberia are Callovian-Upper Jurassic deposits (horizon Yu1 of Vasyugan suite). Upper Jurassic oil and gas complex is thoroughly investigated on the south-east of West Siberia (Tomsk region). Due to the increasing interest in the territory of Tomsk region, this article presents an analysis of early obtained (1950-1980) and new (2003-2007) geological and geophysical material based on the present-day positions, that allows us to reveal the regularity between oil and gas potential and geological structure of Callovian-Oxfordian formations of Omsk Priirtysh and to propose a new view on oil and gas prospects of the Omsk region territory.

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1177290 SIBERIAN LOWLAND -- GEOLOGY
FEATURES OF THE GEOLOGICAL STRUCTURE AND PROSPECTS OIL-AND-GAS CONTENT CRETACEOUS SEDIMENTS OF TOMSK REGION BY EXAMPLE OF DANENBERGOVSKOYE OILFIELD; E.V.Novomlinova (TomskNIPIneft VNK).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.22-25, March 2009. (ISSN 0028-2448; 4 refs; In Russian)

The basic features of the geologic structure resulted once again in an example of open oil fields in the territory of Tomsk region. The detailed analysis of available materials allows us to assert that prospects for oil-and-gas Neocomian sediments of Tomsk area are high.

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1177291 SICHUAN -- GEOLOGY
(ALPHA) AND (BETA)-DIVERSITY CHANGE OF LATE ORDOVICIAN HIRNANTIA FAUNA OF CHANGNING, SICHUAN, SOUTHWEST CHINA; R.Zhan, J.Liu, Y.Liang and G.Li (Nanjing Inst Geol Palaeont; Peking Univ).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.330-339, April 2011. (ISSN 1000-9515)

A continuous Ordovician-Silurian boundary section from the upper Wufeng Formation through the Kuanyinchiao Formation to the lower Lungmachi Formation has been carefully measured and collected at Shuanghe of Changning, southern Sichuan Province. For the first time, the temporal changes of α- and β-diversities of the Hirnantia fauna have been discussed in great detail. The general trend of brachiopod diversity change, increasing upward, is consistent with the regional trend of the Yangtze Platform, which had been controlled by both intrinsic and extrinsic factors. However, the sudden drop of diversity for a short period in the upper Kuanyinchiao Formation might have been controlled by environmental factors rather than normal faunal turnover. Synecological analysis using numerical methods recognizes two brachiopod-dominated associations of the Hirnantia fauna, the Dalmanella-Kinnella Association and the Mirorthis Association, both living in an offshore, deeper water environment corresponding to BA3-upper BA4, particularly lower BA3.

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1177292 SILESIAN COAL BASIN -- GEOLOGY
RESERVOIR PARAMETERS AND MACERAL COMPOSITION OF COAL IN DIFFERENT CARBONIFEROUS LITHOSTRATIGRAPHICAL SERIES OF THE UPPER SILESIAN COAL BASIN, POLAND; S.Kedzior and I.Jelonek (Silesia Univ).. 63RD ANNUAL INTERNATIONAL COMMITTEE FOR COAL AND ORGANIC PETROLOGY MEETING [ICCP] (Porto, Portugal, 9/10-16/2011) PAPERS; INTERNATIONAL JOURNAL OF COAL GEOLOGY v.111, pp.98-105, 5/1/2013. (ISSN 0166-5162)

Laboratory tests were carried out on coal samples taken from mine openings of selected coal mines in the Upper Silesian Coal Basin. The analyses involved maceral composition (vitrinite, inertinite and liptinite group) and vitrinite reflectance on the one hand, and reservoir parameters (coal permeability and effective porosity) on the other. The results are compared. Samples with high values of coal permeability are characterized by vitrinite contents of ca 60%, and samples with the lowest permeability by vitrinite contents of 40%. The vitrinite-rich bright coals are brittle and prone to crushing caused by tectonic pressures. Moreover, coal permeability is more strongly anisotropic in the bright coals of the Cracow Sandstone and the Mudstone Series than in the dull coals of the Upper Silesian Sandstone Series. In bright coals, permeability is much along the direction parallel to vitrain layers. Good reservoir parameters such as permeability and effective porosity are crucial for fluid flow through the coal seams and, thus, successful coalbed methane exploitation. ... (c2012 Elsevier B.V.) (Longer abstract available)

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1177293 SINAI PENINSULA -- GEOLOGY
DEPOSITIONAL ENVIRONMENTS AND SEQUENCE ARCHITECTURE OF THE RAHA AND ABU QADA FORMATIONS (CENOMANIAN–TURONIAN), WEST CENTRAL SINAI, EGYPT; T.I.Anan, A.El-Shahat, A.Genedi and M.Grammer (Mansoura Univ; Oklahoma State Univ).. JOURNAL OF AFRICAN EARTH SCIENCES v.82, pp.54-69, June 2013. (ISSN 1464-343X)

Cenomanian–Turonian deposits are important reservoirs for many oil fields in the Western Desert and the Gulf of Suez region of Egypt. Study of the Raha and Abu Qada formations (Cenomanian–Turonian), from five dip-oriented outcrop locations in west central Sinai; indicates deposition of a mixed siliciclastic-carbonate system on a ramp setting. The inner ramp facies (bivalve and benthonic foraminiferal wackestone) grades northward to the mid ramp facies (echinoderm calcisphere packstone, and oyster floatstone), and outer ramp facies (planktonic foraminiferal wackestone and calcisphere wackestone). The two studied formations comprise one second-order depositional sequence (duration of approximately 10 Million years). This large scale sequence includes four third-order depositional sequences, three of which are observed in the Raha Formation, with the other one recorded in the Abu Qada Formation. Because west central Sinai was tectonically stable during the Cenomanian and Turonian, the main factor controlling the lateral and vertical distribution of facies tracts is likely due to changes in the relative sea level. ... (c2013 Elsevier Ltd.) (Longer abstract available)

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1177294 SITE SELECTION -- GEOLOGY
USE OF NEURO-SIMULATION IN WELL PLACEMENT FOR THE DEVELOPMENT OF A HYDROCARBON FIELD; H.E.Barrios Molano (Santander Industrial Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 8 pp; Abstract only)

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1177295 SOUTH AFRICA -- GEOLOGY
RANGE OF STRATIGRAPHIC TRAP ARCHITECTURE IN THE BASIN-FLOOR FANS, KAROO BASIN, SOUTH AFRICA; D.Hodgson and S.Flint.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Stratigraphic traps occur due to changes in rock character at the pinchouts of sandbodies. Detailed mapping of basin-floor fans in the SW. Karoo Basin has documented a range of stratal termination styles, including up-dip, down-dip, and lateral sandstone pinchouts. These are analogous to stratal pinchouts identified on seismic data, but the sub-seismic analysis of the sedimentology and depositional architecture indicates that not all configurations are suitable stratigraphic trap targets. Up-dip terminations occur where the physical passage from the erosional submarine slope to the basin-floor results in a complicated stratigraphic record of process change from confined channels to unconfined lobes. Predicting the degree of up-dip sand connectivity is critical when assessing stratigraphic trap potential in this transition zone. In a sand-detached system a widespread area dominated by erosional processes and coarse sediment bypass can lead to the formation of an up-dip stratigraphic trap. The facies associations preserved in these sand-poor areas are thin-bedded, but commonly, their top surface includes megaflutes, rip-up clast lags, and soft-sediment deformation, indicating a high-energy erosional bypass environment. (Original not available from T.U.)

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1177296 SOUTH ATLANTIC OCEAN -- GEOLOGY
ONSHORE FRACTURE ZONES AND THEIR EXTENSION OFFSHORE IN THE SOUTH ATLANTIC: INSIGHTS FROM GEOPHYSICAL ANOMALIES AND LOW-TEMPERATURE THERMOCHRONOLOGY; A.O.Franco-Magalhaes, U.A.Glasmacher, P.C.Hackspacher, I.A.De Souza and A.R.Saad (Guarulhos Univ; Heidelberg Univ; Paulista State Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-160; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177297 SPAIN -- GEOLOGY
FLEXURAL-SLIP MECHANISM IN PLUNGING FOLDS: EXAMPLE FROM N-S FOLDS IN THE SOUTH PYRENEAN THRUST FRONT, CENTRAL PYRENEES (SPAIN); R.Soto, A.M.Casas-Sainz, C.Garcia-Lasanta and E.Izquierdo-Llavall (Zaragoza Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-13778; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177298 STRATIGRAPHIC BOUNDARY -- GEOLOGY
EARLY CAMBRIAN MOLLUSC WATSONELLA CROSBYI: A POTENTIAL GSSP INDEX FOSSIL FOR THE BASE OF THE CAMBRIAN STAGE 2; G.Li, X.Zhao, A.Gubanov, M.Zhu and L.Na (Nanjing Inst Geol Palaeont; CASP).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.309-319, April 2011. (ISSN 1000-9515)

The mollusc Watsonella crosbyi was studied on the basis of material from the lower Cambrian Dahai Member of the Zhujiaqing Formation in eastern Yunnan, China and the Pestrotsvet Formation of the Aldan River region in the Siberian Platform. This fossil had been excessively described under different names in the literature. Taxonomic revision shows that other species are junior synonyms of W. crosbyi. Analysis of functional morphology implies that W. crosbyi may be rather a helcionelloid than a rostroconch since its univalved conch is untorted endogastric and lacks a rostrum and a true internal pegma. Replicas of the original microstructures preserved on the surfaces of phosphatic internal moulds confirm that the shell consists of two layers. The inner layer is lamello-fibrillar, and the outer layer is spherulitic prismatic. The widespread geographical occurrences in both siliciclastic and carbonate rocks of the late Terreneuvian indicate that W. crosbyi is an important index fossil for global correlations and subdivision of the Cambrian Series 1 (Terreneuvian). The first appearance datum (FAD) of W. crosbyi is suggested to be a potential GSSP (global boundary stratotype section and point) candidate marker for defining the base of the Cambrian Stage 2.

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1177299 SUDBURY DISTRICT -- GEOLOGY
ROLE OF KILOMETER-SCALE WEAK CIRCULAR HETEROGENEITIES ON UPPER CRUSTAL DEFORMATION PATTERNS: EVIDENCE FROM SCALED ANALOGUE MODELING AND THE SUDBURY BASIN, CANADA; U.Riller, D.Boutelier, C.Schrank and A.Cruden (McMaster Univ; GeoForschungsZentr Potsdam; Western Australia Univ; Monash Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1705; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177300 TALARA BASIN -- GEOLOGY
FACIES ANALYSIS AND PRELIMINARY HIGH-RESOLUTION STRATIGRAPHY OF THE EOCENE MOGOLLON, OSTREA AND HELICO UNITS IN BLOCK X, SOUTH AREA (ETANSUR), TALARA BASIN, NW. PERU; F.Laverde, J.Daudt, L.Maya, G.Carrillo, G.Pozo and K.Torres (Schlumberger; Petrobras America Inc).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 6 pp)

The Eocene Mogollon, Ostrea, Echino and Helico units of the Talara Basin in northwest Peru have produced large quantities of hydrocarbons since the beginning of the 20th century. The turbidite, deltaic/shallow marine successions have been previously subdivided into four lithostratigraphical units for reservoir management purposes. However, recent integrated analysis combining high-resolution stratigraphy with dynamic characteristics has indicated that this traditional subdivision was not sufficient to adequately define reservoir flow units and assess sweep efficiency. The primary objective of this work was, therefore, to develop a more refined reservoir subdivision, which would form the basis for an upgraded reservoir simulation model. This integrated study includes sedimentological core evaluation extracted from 12 wells, electrical log motif evaluation of 483 wells and reservoir engineering data analysis. It was possible to characterize 18 facies associations that were used as the base for reservoir zone definition. The construction of a high-resolution stratigraphic framework has allowed the delineation and correlation of the geometry and architecture of sandstones and mudstone bodies in a genetically-related base. Tectonically or stratigraphically driven unconformities and maximum flooding events were used as key surfaces to identify and correlate five stratigraphic cycles containing the major reservoirs.

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1177301 TALARA BASIN -- GEOLOGY
SEDIMENTOLOGICAL AND GEOLOGIC CHARACTERIZATION OF ANCIENT INNER SHELF CONGLOMERATE FAN LOBES: LATE EOCENE HELICO MEMBER, LUTITAS TALARA FORMATION, TALARA BASIN, PERU; G.Carrillo, L.Maya, J.Daudt, F.Laverde, G.Pozo and K.Torres (Schlumberger; Petrobras America Inc; Petrobras Energia SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 6 pp)

A realistic 3D geological model of the Helico Member reservoirs of Lote X (Petrobras contract area) in Talara Basin was built for purposed reservoir simulation and reserves estimation. The model is based on the integration of core sedimentologic analysis, core-well data linkage and well data correlation. The Helico Member is composed by coarse-grained conglomerates and sandstones accumulated as fan deltas and submarine lobes locally associated with fine grained turbidite deposits, which prograded into an inner marine shelf interrupting the quiet sedimentation on the basin as response to tectonic episodes that possibly created basin accumulation space and uplifted the source area at the same time. The facies association concept demonstrates to be a powerful tool to identify three major stratigraphic elements and high-frequency cyclicity in the Helico Member. The relationship between tectonic and sedimentation is noticeable from facial distribution patterns. The resulting 3D facial models have served as framework elements to model petrophysical properties distribution, and to calculate more accurate reserve.

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1177302 TALARA BASIN -- GEOLOGY
CHARACTERIZATION OF THE PENA NEGRA MEMBER, OSTREA FORMATION, SOUTHERN PART OF LOT X, TALARA BASIN, NW. PERU [CARACTERIZACION DEL MIEMBRO PENA NEGRA, FORMACION OSTREA, PARTE SUR DEL LOTE X, CUENCA TALARA, NOROESTE DEL PERU]; L.Maya, G.Carrillo, F.Laverde, J.Daudt, K.Torres and G.Pozo (Schlumberger; Petrobras America Inc; Petrobras Energia SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 5 pp; In Spanish)

Characterization of the Peña Negra member of the Ostrea Formation is based on the analysis of facies and facies associations which has allowed depositional subenvironments interpretation and construction of facies models. The Peña Negra member consists of two prograding parasequences which are bounded by flooding surfaces. Each sequence begins with shale-rich intervals of marine (offshore) origin and gradually becomes dominantly sandy facies interpreted as corresponding to tidal channels or beaches. This arrangement indicates that the facies distribution is strongly controlled by the relative changes in the base level.

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1177303 TURKEY -- GEOLOGY
3D MODELLING IN PALAEONTOLOGY: A CASE STUDY ON THE TRIASSIC AMMONITE ORTHOCELTITES (CARNIAN, TAURUS, TURKEY); S.Mayrhofer and A.Lukeneder (Vienna Museum).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1833; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177304 TURKEY -- GEOLOGY
SEDIMENTARY PROCESSES IN LAKE VAN: FIRST RESULTS FROM A JOINT INTERPRETATION OF SEISMIC AND DRILLING DATA; D.Cukur, S.Krastel, D.Winkelmann, T.Wonik and T.Litt (Leibniz Inst Marine Sci; Leibniz Inst Appl Geophys; Bonn Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1847-3; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177305 UCAYALI BASIN -- GEOLOGY
DEFORMATION HISTORY AND STRUCTURAL STYLE IN THE NORTH UCAYALI BASIN; R.Bertolotti and I.Moretti (CEPSA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 8 pp)

Hydrocarbon exploration is active in the Peruvian foothills and so analyses of their petroleum systems are carried out. In the North Ucayali basin, the existence of mature source rock is not an issue; HC reserves have been already found. However dry wells exist. Basin modeling shows that the maturation of the source rock began during the Eocene, although the Andean compression in the area is believed to be more recent. In addition, large scale uplift due to the subduction of the Nazca aseismic ridge leads to a regional erosion during the quaternary without any increase of the sedimentary load. As a result, the risk of undercharge of the prospects due to a timing problem exists. A calibration of the erosion at the top of the various structures was performed using paleothermometers. It allows us to propose a kinematic model of deformation in the area; the structures appear to be not uniformly recent. The role of inheritance on the Andean deformation is large. The importance of the Paleozoic and Cretaceous depocenters and faults has been largely recognized; however, the role of evaporitic pillows has been, up to now, poorly studied.

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1177306 UNCONVENTIONAL OIL RECOVRY -- GEOLOGY
NEW INSIGHTS ABOUT PROCESSES AND PRODUCTS OF RESERVOIR CHARGE, ENTRAPMENT AND BIODEGRADATION WITH IMPLICATIONS TO HEAVY-OIL RESERVOIR DEVELOPMENTS: PRINCIPLES AND EXAMPLES FROM CANADA AND ELSEWHERE; M.Fustic, B.Bennett, T.Oldenbrug, H.Huang and S.Larter.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The Athabasca oil sands deposit, one of the world's largest petroleum accumulations, contains an estimated 1.7 trillion barrels of heavily to severely biodegraded oil with API gravities ranging from 6 to 10. Recent qualitative and quantitative analysis of bitumen molecular composition (biomarkers) within the detailed sedimentological framework on both reservoir and basin scale provided new insights about petroleum system. Implications to heavy oil reservoir developments are significant. We suggest that integrated baseline studies of sedimentological and geochemical variation interpretation allow for (1) mapping and (2) prediction away from well control of the extent of top gas, top water and high-water–low-bitumen saturated zones, as well as bitumen properties variations throughout the reservoir. Geochemical data from integrated baseline studies is a powerful tool for identifying lateral compartments and barriers or baffles to vertical fluid communication, while they may also be applied towards production optimization and allocating production along horizontal wells including the assessment of steam chamber growth in oil sands operations. Comparison with data from many heavy-oil fields hosted in similar geological settings demonstrates that developed principles are universal. (Original not available from T.U.)

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1177307 URABA GULF -- GEOLOGY
INVENTORY, INTERPRETATION AND EVALUATION OF GEOLOGICAL, GEOCHEMICAL, AND GEOPHYSICAL INFORMATION BELONGING TO THE URABA BASIN [INVENTARIO, INTERPRETACION Y EVALUACION DE LA INFORMACION GEOLOGICA, GEOQUIMICA Y GEOFISICA PERTENECIENTE A LA CUENCA URABA]; G.Vargas Cuervo, L.Montes and R.Aguilera (Colombia Nacional Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

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1177308 URAL MT AREA -- GEOLOGY
ZIRCONOLOGY OF NAVYSH VOLCANIC ROCKS OF THE AI SUITE AND THE PROBLEM OF THE AGE OF THE LOWER RIPHEAN BOUNDARY IN THE SOUTHERN URALS; A.A.Krasnobaev, V.N.Puchkov, V.I.Kozlov, N.D.Sergeeva, S.V.Busharina and E.N.Lepekhina (Zavaritskii Inst Geology; Ufa Scientific Center; Bashkirian State Univ).. DOKLADY EARTH SCIENCES v.448, pt.2, pp.185-190, Feb. 2013. (ISSN 1531-8354)

Volcanic rocks of the Navysh Complex occur in the base of the Lower Riphean Ai Formation of the Burzyan Series within the Bashkirian meganticlinorium (Southern Urals). Complex application of K–Ar, Rb–Sr, and U–Pb methods demonstrated that the age of volcanic rocks of the Navysh Complex is 1615 ± 45 Ma; the age of their transformations resulting from bostonization is 630 ± 60 Ma. We selected a new group (five) of samples of Navysh volcanic rocks and performed new investigations of zircons. The most likely dating of this boundary in the new variant of the stratigraphic scale may be close to 1800 Ma. In addition, realization of this suggestion may remove some contradictions in correlations of Proterozoic sections of Russia and China and especially the Lower Riphean sections and the Chang-cheng system within 1400–1800 Ma. Because of the approximate similarity of the Lower Riphean age and the Chang-cheng system, the lower boundary of the Mesoproterozoic on the International Scale should be moved to the level of ca 1800 Ma.

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1177309 VENEZUELA -- GEOLOGY
THE SABANETA GAS DISCOVERY: A CARBONATE SHOAL BUILDUP TREND IN THE MATURE BARINAS BASIN; R.Hernandez, C.Kerans and A.Aleman.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Some of the world's most important carbonate reservoir systems are found in foreland basin settings. A wildcat drilled in the southern part of the Barinas foreland basin of Venezuela has tested a new play concept in a Middle Eocene reefal platform in the Masparito Member of the Gobernador Formation, although the total reserves for this discovery have not been fully evaluated, and the IPR is 1.3 MMCFGD and 35 BCD. This result has significant impact in being the first carbonate discovery in the Tertiary of the Barinas Basin, and has implications for the time-equivalent Guarico (Penas Blancas Fm.) and Maturin (Tinajitas Fm.) foreland basins. The Masparito Member overlies a forced regressive siliciclastic shelf of the Gobernador Formation, representing a significant increase in accommodation that leads to development of isolated buildups of up to 60 m thickness on the seaward margin of this shelf. The lower 20 m of the Sabaneta Platform is characterized by mud-dominated carbonates with porosities below 10 percent. Localized development of coarse crystalline hydrothermal dolomite locally improves reservoir quality. (Original not available from T.U.)

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1177310 VENEZUELA -- GEOLOGY
THE FIRST VENEZUELAN GEOLOGICAL OIL MAP: THE RALPH ARNOLD HISTORY 1911-1916; A.Duarte-Vivas.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 2 pp; Abstract only)

When Dr. Ralph Arnold first travelled to Venezuela via the Island of Trinidad, he was 36 years old. After his first appraisal of the Island of Trinidad's oil assets in late 1911, he was hired by the General Asphalt Company of Philadelphia, Pennsylvania, to survey mainland Venezuela, separated by only 15 miles from Trinidad. His original book was published in English in 1960. Never had a title said it so straight--the first big oil hunt. The Spanish edition, which finally came out in 2009, is more than a mere translation. The pictures were enhanced and a more added; typo mistakes were found and corrected; and the names of people and places were correctly spelled out and completed. Research was done at the Huntington Library in California, the depository of Arnold’s manuscripts. Most importantly, there is still a large collection of original photographs that need to see the light of day and be published. We are continuing this work, in order to honor Venezuela's pioneer oil geologist, Dr. Ralph Arnold. (Original not available from T.U.)

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1177311 VENEZUELA -- GEOLOGY
EVALUATION OF THE GEOSTRUCTURAL SEQUENCES OF THE PALEOCENE-EOCENE SEDIMENTARY BARBACOAS PLATFORM [EVALUACION GEOESTRUCTURAL DE LAS SECUENCIAS SEDIMENTARIAS DEL PALEOCENO-EOCENO DE LA PLATAFORMA DE BARBACOAS]; L.Gonzalez M., D.Garay G., M.Gonzalez B., F.Bongiorno P. and F.Mazuera R. (Los Andes Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

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1177312 VERKHOYANSK REGION -- GEOLOGY
RECONSTRUCTION OF PROVENANCES AND CARBONIFEROUS TECTONIC EVENTS IN THE NORTH-EAST SIBERIAN CRATON FRAMEWORK ACCORDING TO U-Pb DATING OF DETRITAL ZIRCONS; V.B.Ershova, A.K.Khudoley and A.V.Prokopiev (St Petersburg State Univ; Russian Academy Sciences).. GEOTECTONICS v.47, no.2, pp.93-100, March 2013. (ISSN 1556-1976)

The U–Pb dating of detrital zircons from Carboniferous rocks in the northern frontal zone of the Verkhoyansk Fold and Thrust Belt (Kharaulakh Anticlinorium) at the boundary with the Siberian Platform is carried out for the first time. The age distribution of detrital zircons from the four dated samples has much in common, indicating that the same sources of clastic material were predominant. All of the samples are dominated by Precambrian zircons. Early Ordovician and Late Devonian – Early Carboniferous detrital zircons are also numerous. The igneous rocks of the Taimyr–Severnaya Zemlya and/or Central Asian foldbelts extending along the northern, western, and southwestern margins of the Siberian continent probably were the main source areas of the studied sedimentary successions. The clastic material was transferred at a great distance by large river systems and deposited in submarine fans at the passive margin of the Siberian continent. The occurrence of the detrital zircons whose age is synchronous to the time of sedimentation of the Carboniferous successions in the northern Verkhoyansk region suggests that they were derived from the Taimyr–Severnaya Zemlya Foldbelt and that collision of the Kara Block with the Siberian continent began in the Early Carboniferous.

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1177313 VOLUMETRIC METHOD -- GEOLOGY
THE DEPTH-AREA-THICKNESS (DAT) METHOD FOR CALCULATING GROSS ROCK VOLUME: A BETTER WAY TO MODEL HYDROCARBON CONTACT UNCERTAINTY; B.James, A.T.Grundy and M.A.Sykes.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Gross rock volume (GRV), the volume of rock between a top and base reservoir surface and above a known or postulated hydrocarbon-water contact in a geologic trap, is often the most influential parameter in determining the magnitude of resource volumes contained, or potentially contained, in that trap. In any petroleum volumetric analysis, it is therefore essential to calculate both the best estimate and the range of uncertainty for GRV accurately and appropriately. However, geologic traps exhibit highly variable and often complex geometries. They range in shape from simple anticlines, resembling an upturned bowl, to all manner of intricately structured features with variable flank dip, overturned limbs and multiple culminations. There is thus a need for a single and reliable equation that can calculate GRV for this diverse suite of trap configurations. Direct input of a GRV range, for example calculated in a mapping tool as a result of combining explicit choices of closure area, reservoir thickness and hydrocarbon contact depth assumptions, should be avoided. (Original not available from T.U.)

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1177314 YANGTZE GORGES AREA -- GEOLOGY
ACANTHOMORPH BIOSTRATIGRAPHIC SUCCESSION OF THE EDIACARAN DOUSHANTUO FORMATION IN THE EAST YANGTZE GORGES, SOUTH CHINA; C.Yin, P.Liu, S.M.Awramik, S.Chen, F.Tang, L.Gao, Z.Wang and L.A.Riedman (Chinese Academy Geol Sci; Calif Univ, Santa Barbara).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.283-295, April 2011. (ISSN 1000-9515)

Large acanthomorphic acritarchs have been found in chert of the Ediacaran Doushantuo Formation at several localities in South China, including the East Yangtze Gorges of Hubei Province, Weng'an area of Guizhou Province, and elsewhere. However, their potential for biostratigraphic subdivision and correlation of Ediacaran successions is limited by facies control, taphonomic biases, and taxonomic problems. In the Yangtze Gorges, the Doushantuo Formation is generally subdivided into four lithologic members. However, in the Weng'an area, the Doushantuo Formation comprises just a lower and upper part separated by a mid-Doushantuo erosional surface. In the Yangtze Gorges at the Zhangcunping section, the Doushantuo succession is similar to that at Weng'an. So far, the correlation between the Yangtze Gorges and Weng'an area, and elsewhere, has been an issue of debate. To resolve the debate, we selected eight sections in the Yangtze Gorges area and systemically sampled chert nodules of the Doushantuo Formation, focusing in particular on the upper Doushantuo Formation. Our data confirm two different assemblages appearing separately in the second and third members, which are separated by a negative δ13C excursion (EN2). The lower assemblage is characterized by Tianzhushania and a diverse suite of large acanthomorphic acritarchs.

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1177315 ZHUNGAER BASIN -- GEOLOGY
STRATIGRAPHY OF THE TRIASSIC-JURASSIC BOUNDARY SUCCESSIONS OF THE SOUTHERN MARGIN OF THE JUNGGAR BASIN, NORTHWESTERN CHINA; J.Sha, V.Vajda, Y.Pan, L.Larsson, X.Yao, X.Zhang, Y.Wang, X.Cheng, B.Jiang et al. (Nanjing Inst Geol Palaeont).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.421-436, April 2011. (ISSN 1000-9515)

Investigation based on palynology and bivalves has been carried out over a 1,113 m thick section, which is subdivided into 132 beds, along the Haojiagou valley on the southern margin of the Junggar Basin of the northern Xinjiang, northwestern China. The terrestrial Lower Jurassic is conformably resting on the Upper Triassic strata. The Upper Triassic covers the Huangshanjie Formation overlaid by the Haojiagou Formation, while the Lower Jurassic comprises the Badaowan Formation followed by the Sangonghe Formation. Based on the key-species and abundance of spores and pollen, three zones were erected: the Late Triassic (Rhaetian) Aratrisporites-Alisporites Assemblage, the Early Jurassic (Hettangian) Perinopollenites–Pinuspollenites Assemblage, and the Sinemurian Perinopollenites–Cycadopites Assemblage. The Triassic-Jurassic boundary is placed between bed 44 and 45 coincident with the boundary between the Haojiagou and Badaowan formations. The sedimentary succession is interpreted as terrestrial with two mainly lake deposit intervals within Haojiagou and Badaowan formations, yielding freshwater algae and bivalves. However, the presence of brackish water algae Tasmanites and the marine-littoral facies bivalve Waagenoperna from the Badaowan Formation indicate that the Junggar Basin was influenced by seawater caused by transgressions from the northern Tethys, during the Sinemurian.

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GEOCHEMISTRY

table of contents list of publications

1177316 ANDES MT AREA -- GEOCHEMISTRY
PETROLEUM SYSTEMS OF WESTERN SOUTH AMERICA ASSESSED FROM OIL GEOCHEMISTRY AND BASIN REDEFINITIONS; C.Schiefelbein, C.Urien, W.Dickson, M.Odegard and J.Zumberge (Geochemical Solutions Int; Urien & Associates; Dickson Int Geosciences; Grizzly Geosciences; GeoMark Research).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; Extended abstract)

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1177317 APPALACHIAN BASIN -- GEOCHEMISTRY
THERMAL MATURITY OF NORTHERN APPALACHIAN BASIN DEVONIAN SHALES: INSIGHTS FROM STERANE AND TERPANE BIOMARKERS; P.C.Hackley, R.T.Ryder, M.H.Trippi and H.Alimi (US Geological Survey; Weatherford Laboratories).. FUEL v.106, pp.455-462, April 2013. (ISSN 0016-2361)

To better estimate thermal maturity of Devonian shales in the northern Appalachian Basin, eleven samples of Marcellus and Huron Shale were characterized via multiple analytical techniques. Vitrinite reflectance, Rock–Eval pyrolysis, gas chromatography (GC) of whole rock extracts, and GC–mass spectrometry (GCMS) of extract saturate fractions were evaluated on three transects that lie across previously documented regional thermal maturity isolines. Results from vitrinite reflectance suggest that most samples are immature with respect to hydrocarbon generation. However, bulk geochemical data and sterane and terpane biomarker ratios from GCMS suggest that almost all samples are in the oil window. This observation is consistent with the presence of thermogenic gas in the study area and higher vitrinite reflectance values recorded from overlying Pennsylvanian coals. These results suggest that vitrinite reflectance is a poor predictor of thermal maturity in early mature areas of Devonian shale, perhaps because reported measurements often include determinations of solid bitumen reflectance. Vitrinite reflectance interpretations in areas of early mature Devonian shale should be supplanted by evaluation of thermal maturity information from biomarker ratios and bulk geochemical data. (c2012 Elsevier Ltd.)

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1177318 AUSTRIA -- GEOCHEMISTRY
PREFERRED CEMENTATION BY IRON-RICH DOLOMITE ALONG DEFORMATION BANDS IN A HYDROCARBON RESERVOIR, MATZEN, AUSTRIA; J.Kaiser, U.Exner, S.Gier and W.Hujer (Vienna Univ; OMV Austria).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1456; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177319 BORON -- GEOCHEMISTRY
CENOZOIC BORON ISOTOPE VARIATIONS IN BENTHIC FORAMINIFERS; M.Raitzsch and B.Honisch (Alfred Wegener Inst; Lamont Doherty Earth Obser).. GEOLOGY v.41, no.5, pp.591-594, May 2013. (ISSN 1943-2682)

The boron isotopic composition of seawater (δ11Bsw) is a prerequisite for reliably estimating past variation of seawater pH from boron isotopes in marine carbonates (δ11Bc). Here we compose a 50 m.y. stack of δ11Bc from Atlantic and Pacific Ocean deep-sea sediments, and discuss the potential effects of deep-sea pH and δ11Bsw on our record. Using model-based Cenozoic pH values, the inferred δ11Bsw values suggest an ca 3‰ increase since the Late Eocene, superimposed on oscillating variations with amplitudes of up to 2‰. Our estimates match existing reconstructions of δ11Bsw, but call into question published fluid δ11B in halite as a recorder of δ11Bsw.

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1177320 CARIBBEAN AREA -- GEOCHEMISTRY
GREATER CARIBBEAN INTEGRATED CRUDE OIL STUDY; C.Schiefelbein and C.Urien (GSI; Urien & Associates).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

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1177321 CATATUMBO AREA -- GEOCHEMISTRY
A TERTIARY AGE PETROLEUM SYSTEM IN THE CATATUMBO BASIN, COLOMBIA: EVIDENCE OF AN UNKNOWN SOURCE ROCK IN THE PALEOCENE [UN SISTEMA PETROLIFERO DE EDAD TERCIARIA EN LA CUENCA CATATUMBO, COLOMBIA: EVIDENCIAS DE UNA ROCA GENERADORA DESCONOCIDA EN EL PALEOCENO]; V.Blanco V., D.Garcia B., Y.Blanco V. and M.Gallo G. (Ecopetrol SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

Paleocene Catatumbo, Barco and Los Cuervos Formations, drilled in six wells in the southeastern sector of the Catatumbo Basin, Colombia, were evaluated as hydrocarbon source rocks. The hydrocarbon potential of these units was characterized on cuttings and outcrop samples using analytical techniques such as TOC, Rock-Eval pyrolysis, and reflected and transmitted light microscopy. According to petrographic analysis performed, said units are composed of vitrinite-rich layers while the liptinite components are present in low proportions (less than 10%). However, the generating capacity of these facies, was also evaluated by the simulation of the processes of generation and expulsion at laboratory scale, hydropyrolysis testing at specific reaction conditions (320°C for 72 hours continuously); from these experiences it was possible to generate oil and gas from previously dated surface samples of the Catatumbo Formation and the Barco / Los Cuevos interval.

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1177322 CEPHALOPOD -- GEOCHEMISTRY
GEOCHRONOLOGICAL CONSTRAINTS ON THE POST EXTINCTION RECOVERY OF THE AMMONOIDS AND ON THE CARBON ISOTOPE CYCLE DURING THE EARLY JURASSIC; J.Guex, B.Schoene, A.Bartolini, J.Spangenberg, U.Schaltegger, L.O'Dogherty, D.Taylor, V.Atudorei and H.Bucher (Lausanne Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1851; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177323 CHINA -- GEOCHEMISTRY
GEOCHEMICAL STRATIGRAPHY AND MICROVERTEBRATE ASSEMBLAGE SEQUENCES ACROSS THE SILURIAN/DEVONIAN TRANSITION IN SOUTH CHINA; W.Zhao, N.Wang, M.Zhu, U.Mann, U.Herten and A.Luecke (Chinese Academy Sciences; Juelich Research Ctr GmbH).. ACTA GEOLOGICA SINICA (ENGLISH EDITION) v.85, no.2, pp.340-353, April 2011. (ISSN 1000-9515)

Carbon isotope (δ13Corg) analyses of non-marine clastic rocks and neritic carbonates and black shales spanning the Silurian/Devonian transition are compared from two richly fossiliferous sequences in Qujing of East Yunnan and Zoige of Sichuan, South China. The two sections, Xishancun and Putonggou sections in South China, reveal positive δ13Corg shifts happening in the Upper Pridoli and Lower Devonian and reaching peak values in the lowermost Lochkovian following the first occurrence of the thelodont Parathelodus and the conodont Icriodus woschmidti woschmidti. These results replicate a globally known positive shift in δ13Corg from the uppermost Silurian to the lowermost Devonian. In addition, four microvertebrate assemblages, including the Liaojiaoshan, Xishancun, Yanglugou and Xiaputonggou assemblages, are recognized from the Silurian/Devonian transition exposed in the Xishancun and Putonggou sections, respectively. The results from both carbon isotope stratigraphy and microvertebrate assemblage sequences suggest that the SDB in South China is located at the base of the Xishancun Formation in the Xishancun Section and the lower part of the Xiaputonggou Formation in the Putonggou Section. The isotopic trend for organic carbon together with the changes of microvertebrate remains across the SDB can offer an approach to a potential correlation of the SDB from different sedimentary facies, which help to correlate the marine with non-marine deposits.

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1177324 CHUKCHI SEA -- GEOCHEMISTRY
LITHOCHEMICAL CLASSIFICATION OF THE ARCTIC DEPOSITIONAL ENVIRONMENTS (CHUKCHI SEA) BY METHODS OF MULTIVARIATE STATISTIC; A.S.Astakhov, R.Wang, K.Crane, M.V.Ivanov and A.Gao (Russian Academy Sciences; Tongji Univ; NOAA; Xiamen Univ).. GEOCHEMISTRY INTERNATIONAL v.51, no.4, pp.269-289, April 2013. (ISSN 1556-1968)

This paper presents data on the chemical composition of bottom sediments from the Chukchi Sea and the adjacent Arctic Ocean. Multivariate statistical techniques were used for the analysis of the data set and revealed that grain size fractionation of the original terrigenous component during sedimentation was the major factor of the clustering of the samples. Secondary factors include the accumulation of biogenic siliceous and carbonate material and chemogenic or biochemical accumulation of iron, manganese, and some trace elements. The latter factor was significant in areas of tectonic activity within the graben–rift system of the Chukchi Sea.

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1177325 COLOMBIA -- GEOCHEMISTRY
PETROLEUM SYSTEM VARIATIONS IN THE LLANOS BASIN (COLOMBIA); I.Moretti, C.Mora, W.Zamora, M.Valendia, M.Mayorga and G.Rodriguez (CEPSA Exploration & Prod; GEMS; Cepcolsa).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 8 pp)

The Llanos Basin located in the eastern side of Colombia contains some of the top ten biggest Colombian oil fields discovered during the 1980s (Cano Limon) and 1990s (Cusiana-Cupiagua). With 2,900 MBOE (million barrels of oil equivalent) of cumulative production to December 2007, remaining reserves of about 1,500 MBOE and a potential for giant and medium size in reserves discoveries, the Llanos Basin is very attractive for E&P interests. The classical petroleum system recognized for this basin corresponds to Cretaceous source rock - Oligocene reservoirs. The main reservoir is the Mirador Fm. when present, but reserves have been also reported in Une Fm. (Upper Cretaceous), Barco Fm. (Paleocene) and Carbonera Fms. (Oligocene). As shown by the diversity of the oil geochemical characterization in the central foothills and foreland areas, other source rock intervals are active. The aim of the present work is to quantify the potential of the various potential source rocks, including the Paleozoic, the Cretaceous, and all the Tertiary shale, and to model their evolutions through time.

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1177326 COLOMBIA -- GEOCHEMISTRY
DETAILED ORGANIC GEOCHEMICAL CHARACTERIZATION FROM A CRETACEOUS SEQUENCE: POTENTIAL UNCONVENTIONAL RESERVOIRS - SHALE GAS / SHALE OIL IN THE MIDDLE MAGDALENA VALLEY BASIN; T.M.Juliao, R.Marquez, W.H.Zamora and E.R.Perez Carillo.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

A detailed geochemical study from the cretaceous sequence in the La Luna-1 well, the first well drilled by Ecopetrol for unconventional reservoirs--shale gas and shale oil--in Colombia, was carried out in more than 1,000 samples (core and cuttings), separated about three feet, in order to identify the better intervals, which can be considered prospective for this type of deposits. The upper Cretaceous La Luna Formation has been divided into three members. The Salada, Pujamana and Galembo each present geochemical characteristics distinctive than others associated with different depositional paleoenvironmental conditions. In the Salada and Galembo, members consist predominantly of marine organic matter (kerogen type II, oil prone) associated to mid-external platform environments, with most TOC values higher than 2% (between 2 and 8%). The Pujamana member consists of marine organic matter (kerogen II, oil prone), with important input of terrestrial organic matter (kerogen III, gas prone) indicating paleoenvironmental conditions more proximal in the marine shelf with TOC values, in general lower than 2%. (Original not available from T.U.)

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1177327 EASTERN CORDILLERA -- GEOCHEMISTRY
TIMING OF OIL GENERATION IN THE EASTERN FLANK OF THE EASTERN CORDILLERA OF COLOMBIA BASED ON KINEMATIC MODELS: IMPLICATIONS IN THE LLANOS FOOTHILLS AND FORELAND CHARGE; M.Cortes, D.Garcia, G.Bayona and Y.Blanco (Ecopetrol SA; Inst Colombiano Petroleo; Corporacion Geologica ARES).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 8 pp)

A new model suggests at least three major phases of deformation and subsequent trap generation during Late Maastrichtian to Paleocene (phase 1), Late Eocene to Early Miocene (phase 2) and Pliocene to Quaternary (phase 3). Structures associated to phase 1 affected the axial zone and eastern flank of the Eastern Cordillera. Structures related to phase 2 were located in the eastern flank of the Eastern Cordillera and locally in the foreland. During phase 3, inversion of the Guaicaramo Fault is observed. On the other hand, potential areas for oil maturation were identified in the eastern flank of the Eastern Cordillera and the hanging-wall and foot-wall blocks of the Guaicaramo Fault. The model suggests early oil generation to the east of the Pesca fault during phase 1. During phase 2 the kitchen area migrated eastward to the hanging-wall block of the Guaicaramo Fault. Reservoir units probably acted as migration pathways towards the foothills and foreland areas during phases 1 and 2. Finally, the Andean tectonic phase (phase 3) induced reactivation and exhumation of previous structures and kitchen areas to the west of the Guaicaramo Fault, restricting oil generation to the foot-wall block.

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1177328 EASTERN CORDILLERA -- GEOCHEMISTRY
CRUDE OIL FROM UPPER CRETACEOUS ORGANIC FACIES IN THE COLOMBIAN EASTERN CORDILLERA AND ITS VARIABILITY FROM SOURCE ROCK TO THE RESERVOIR; V.Blanco, C.Orejuela, D.Garcia and L.Mogollon (Ecopetrol SA; GEMS Ltda).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

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1177329 EGYPT -- GEOCHEMISTRY
GAS HYDRATES OVER THE EGYPTIAN MEDITERRANEAN COASTAL WATERS; S.Sharef El-Din and M.Nassar.. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177330 EURASIA -- GEOCHEMISTRY
ORGANIC GEOCHEMISTRY OF PRE-CAMBRIAN OILS OF SIBERIAN, EAST-EUROPEAN AND ARABIAN-NUBIAN PLATFORMS; N.S.Kim.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.1, pp.101-107, 2009. (ISSN 0016-7894; 5 refs; In Russian)

Using gas-and-liquid chromatography and gas chromatography - mass spectrometry methods, the features of composition and distribution of biomarker hydrocarbons in Upper Proterozoic oils of three regions-–Siberian, East European and Arabian (Oman) platforms--have been established. The correlation of composition of these oils and comparative analysis of findings with published up-to-date information were undertaken. It has been identified that Precambrian oils show some peculiar features along with numerous characteristics common in Phanerozoic oils. The examined Precambrian oils are enriched in the light carbon isotope 12C and have essentially aliphatic composition dominated by normal alkanes. Along with that, the oils differ significantly in the amounts of individual homologous series and saturated biomarker hydrocarbons. These differences in the studied ancient oils testify to the existence of two types of marine habitats of living organisms in the Late Proterozoic. In one of them, prokaryotes have proved to have be similar to Phanerozoic in their composition of lipid complexes, whereas in the other group there lived organisms with the lipid content composition different from Phanerozoic one, which influenced the compositions of oils derived from them (the presence of 12- and 13- monomethylalkanes, predominance of ethylcholestanes among steranes, high concentrations of tricyclanes).

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1177331 FINGERPRINTING -- GEOCHEMISTRY
IN SITU TRACKING OF OIL SPECTRAL FLUORESCENCE: FIELD DATA, LAB STUDIES, AND DEVELOPMENT OF ADVANCED SENSORS; C.Koch, J.Needoba, L.Slasor, A.Barnard, M.Twardowski, C.Moore, C.Orrico, S.Pegau and P.Cople (WET Labs Inc).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-13808; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177332 GAS SEEP -- GEOCHEMISTRY
CHARACTERISING MARINE AND LACUSTRINE METHANE MACRO-SEEPS IN 14 STEPS; M.Hovland and C.Fichler (Bergen Univ; Statoil ASA).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1737; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177333 GERMANY -- GEOCHEMISTRY
ELEMENT MOBILIZATION AND MINERAL (RE-)PRECIPITATION IN SEDIMENTARY ROCKS FROM CENTRAL GERMANY ON A MICROSCOPIC SCALE; U.Hilse, D.Pudlo and R.Guapp (Friedrich Schiller Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-13821-1; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177334 GERMANY -- GEOCHEMISTRY
DISTRIBUTION AND ACTIVITIES OF MICROORGANISMS IN THE RESERVOIR AND AROUND GAS WELLS IN A LONG-TERM USED GAS FIELD IN THE ALTMARK, GERMANY; D.Kock, D.Morozoval, J.Frerichs, H.Wurdemann and M.Krueger (Fed Inst Geosci Nat Rsces; GFZ German Research Ctr).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14030; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177335 GREEN CANYON AREA -- GEOCHEMISTRY
SEDIMENTARY FABRICS IN THE AUTHIGENIC CARBONATES FROM BUSH HILL: IMPLICATION FOR SEABED FLUID FLOW AND ITS DYNAMIC SIGNATURE; D.Feng, D.Chen and H.H.Roberts (Chinese Academy Sciences; Louisiana State Univ).. GEOFLUIDS v.8, no.4, pp.301-310, Nov. 2008. (ISSN 1468-8123)

Seep carbonates, the product of cold seep fluids mediated by microbial activity, archive information on seabed fluid flow and microbiological processes that led to their formation. Sedimentary fabrics are well developed in the authigenic carbonate from active seep sites at Bush Hill, Green Canyon Block 185 of the Gulf of Mexico. This authigenic carbonate has much lower carbon isotope values than typical marine cements and the carbonate is concluded to be derived from the oxidation of seeping petroleum. The authigenic fabrics commonly exhibit microbial or texturally unique sedimentary structures; e.g., framboidal pyrite, clotted microfabric and peloid, botryoidal aragonite, microfilament, and rosette-like aragonite are all preserved in seep carbonate. These fabrics are indicators of biological influence during microbial oxidation of petroleum and sulfate reduction when cold fluids seep on to the seabed. The textures are, therefore, considered as additional evidence that can be used to identify and interpret ancient cold-fluid seeps on seafloor. The difficulty of the preservation of these biogenic fabrics is thought to be related to the redox condition and dynamic signature (e.g., rate of fluid flow) of cold seeps.

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1177336 ITALY -- GEOCHEMISTRY
NEW ISOTOPE DATA FROM THE LOWER CRETACEOUS PUEZ KEY SECTION IN THE DOLOMITES (SOUTHERN ALPS: N. ITALY); A.Lukeneder (Vienna Museum).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1714; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177337 JAPAN -- GEOCHEMISTRY
CHARACTERIZATION OF NATURAL GASES IN JAPAN BASED ON MOLECULAR AND CARBON ISOTOPE COMPOSITIONS; A.Waseda and H.Iwano (JAPEX Research Center).. GEOFLUIDS v.8, no.4, pp.286-292, Nov. 2008. (ISSN 1468-8123)

In this paper, the origin, maturity, migration, biodegradation and mixing of natural hydrocarbon gases in Japan have been interpreted using molecular and carbon isotope compositions. No indications of abiogenic gases have been found, the gases being classified as microbial, thermogenic or mixed microbial/thermogenic. However, secondary alteration (mixing, biodegradation, fractionation in migration processes) has had a major but variable impact on the composition of natural gases. Biodegradation, especially, has altered both molecular and isotopic signatures. Thus, the prime control of isotopic and molecular characteristics in gases is due to genetic phenomena, but secondary effects must be taken into account when attempting to understand the origin and distribution of gas. Where the extent of secondary alteration is small, carbon isotope compositions of thermogenic hydrocarbons are controlled largely by maturity. An isotope model developed by Berner and Faber was applied successfully to natural gases in northeast Japan. Besides maturity estimation, the application of the model enables detection of biodegradation, mixing between microbial and thermogenic gases, and mixing among gases with different maturities. The carbon isotope compositions of carbon dioxide also provide information for their genetic origins.

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1177338 LLANOS BASIN -- GEOCHEMISTRY
FACTORS AFFECTING THE CRUDES IN THE LLANOS ORIENTALES BASIN [FACTORES QUE AFECTAN LA CALIDAD DE LOS CRUDOS EN LA CUENCA DE LOS LLANOS ORIENTALES]; R.Aguilera (RA Geologia EU).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 4 pp; In Spanish)

Crude quality, measured as API gravity and sulfur content, is one of the most important economic quantifications in a reservoir, since quality depends on the value obtained for the produced crude. However, the quality is the result of the interaction of a number of factors having to do with evolution of the basin, the conditions under which the source rock was deposited, the type and quality of the organic matter, the extent of maturation in the kitchens, the length migration routes, the time spent at the site, the vertical and lateral position in the basin, biodegradation and crude oil mixture previously generated and accumulated, to mention some of the most common. This is why it is important to understand these factors and their impact on the accumulations.

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1177339 LLANOS BASIN -- GEOCHEMISTRY
FORELAND LLANOS BASIN OF COLOMBIA: A 3D MODELING OF GEOCHEMICAL SIGNATURES ASSOCIATED TO THE FLUID-FLOW HISTORY AND ITS IMPLICATIONS IN THE PETROLEUM SYSTEM; F.Gonzalez-Penagos, I.Moretti and X.Guichet.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The Eastern Llanos foreland basin is the largest petroleum province of Colombia. Its petroleum system involves hydrocarbon accumulations in Cretaceous and Tertiary units in a siliciclastic shale / sandstone stratigraphic sequence. Shale units represent both, source and seal rocks within a shale-dominated column and sandstones the reservoir rocks. Hydrocarbon maturation and migration are currently active but a strong regime of water circulation play a determinant role in the global fluid flow. New geochemical analysis performed in formation waters and natural gas samples give us the clues to understand the present-day fluid origins and highlight the geochemical interaction and water source mixtures in depth. Distribution of geochemical information allows us to determine the genetic fingerprints preserved and to propose a mixture model of origin of fluids in the hydrocarbon fields. This mixture has three sources, including (1) the connate water (corresponding to the sediment environment); (2) the shale diagenesis (mainly here dehydration of the smectite); and (3) meteoric recharge (topography-driven flow). We carried out a 3D basin model to reconstruct present-day hydrocarbon accumulation and water geochemical distribution. (Original not available from T.U.)

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1177340 LLANOS BASIN -- GEOCHEMISTRY
ORIGIN AND MIXTURE OF FLUIDS IN THE LLANOS FORELAND BASIN OF COLOMBIA: COMPOSITION, STABLE ISOTOPES AND NOBLE GASES ANALYSIS OF NATURAL GAS; F.Gonzalez-Penagos, V.Rouchon, A.Battani and X.Guichet.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The foreland Llanos basin is a prolific petroleum province of Colombia. Although the essential elements of its petroleum system are generally well understood, dynamic processes seem to be controlled primarily by a complex fluid flow history including an active topography-driven meteoric water recharge. Geochemical characterization of carbon and noble gases can be used to elucidate the origin of the various fluid contributions accumulated in reservoirs. Natural gas samples were recovered from 15 producing wells (water-oil-gas mixture), taken from the Une, Mirador and Carbonera C7 formations between 1-5 km depth. The results show a wide compositional variation in natural gas accumulations main compounds: CH4, CO2, and N2. Hydrocarbons clearly show a classical maturity trend for the Une and Mirador Fms with biodegradation processes in shallow samples from Carbonera C7 Fm to the south. Thermogenic hydrocarbons are associated with radiogenic He, while some mantle He input seems to increase towards the Guaycaramo Fault System mainly in the Une Fm. Distribution of observed geochemical patterns allows determining the multiple sources mixing of thermogenic hydrocarbon fluids, atmosphere-derived (meteoric water flush) and biodegradation processes coupled with an understanding of the fluid-flow history of the Llanos basin. (Original not available from T.U.)

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1177341 MAGNESITE -- GEOCHEMISTRY
MAGNESITE DISSOLUTION RATES AT DIFFERENT SPATIAL SCALES: THE ROLE OF MINERAL SPATIAL DISTRIBUTION AND FLOW VELOCITY; F.Salehikhoo, L.Li and S.L.Brantley (Pennsylvania State Univ).. GEOCHIMICA ET COSMOCHIMICA ACTA v.108, pp.91-106, 5/1/2013. (ISSN 0016-7037)

We examined the role of mineral spatial distribution and flow velocity in determining magnesite dissolution rates at different spatial scales. One scale is the column scale of a few to tens of centimeters where dissolution rates are measured. Another is the “local” in situ scale defined as approximately 0.1 mm. The experiments used two columns with the same bulk concentration but different spatial distributions of magnesite. In the “Mixed” column, magnesite was evenly distributed spatially within a quartz sand matrix across the whole column, while in the “One-zone” column, magnesite was distributed in one zone in the middle of the column. The two columns were flushed with the same inlet acidic solution (pH 4.0) under flow velocities varying from 0.18 to 36 m/d. Columns of different lengths (22, 10, and 5 cm) were run to understand the role of length scales. Reactive transport modeling was used to infer local-scale and column-scale dissolution rates. ... (c2013 Elsevier Ltd.) (Longer abstract available)

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1177342 MARANON BASIN -- GEOCHEMISTRY
ORGANIC GEOCHEMISTRY OF THE CRUDE LOCATED IN THE NORTHEASTERN MARANON BASIN: DISCUSSION ABOUT THE ORIGIN OF THE CRUDE [GEOQUIMICA ORGANICA DE LOS CRUDOS LOCALIZADOS EN EL NORESTE DE LA CUENCA MARANON, PERU: DISCUSION ACERCA DEL ORIGEN DE LOS CRUDOS]; R.Tocco and W.Hermoza (Repsol Exploracion).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 7 pp; In Spanish)

Geochemical data evaluated in this study are used to establish the origin of crude trapped in deposits belonging to the Agua Caliente, Chonta and Vivian Formations located in the northeast of the Marañon Basin (Blocks 39 and 1AB). Based on the analysis of biomarkers and isotopic composition, it can be inferred that these oils have a common origin and were generated by a source rock rich in carbonate minerals with marine organic matter. The maturity of these crudes is associated with early hydrocarbon generation (early oil window), equivalent to vitrinite reflectance values ranging between 0.7 and 0.8%. The high values of sulfur content (>2%) associated with low-moderate maturity levels suggest that these crudes have been generated by a source rock containing kerogen Type II-S.

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1177343 MEXICO GULF -- GEOCHEMISTRY
CHARACTERIZING ORGANIC MATTER IN MARINE SEDIMENTS ASSOCIATED WITH GAS HYDRATE AND OIL SEEPAGE FROM THE GULF OF MEXICO; Z.Song, L.Wang, J.Liu, C.Wang and D.Chen (Chinese Academy Sciences).. GEOFLUIDS v.8, no.4, pp.293-300, Nov. 2008. (ISSN 1468-8123)

Six marine sediments from the seafloor of the Gulf of Mexico were studied in terms of the abundance, composition and distribution of organic matter, as well as biomarker chemistry. The results show that there are great spatial variations in terms of organic matter abundance and hydrocarbon composition among these samples. The S-7 and S-9 samples show the characteristics of modern organic matter that has been modified by biodegradation, while the S-8, S-10 and S-11 samples are clearly contaminated with petroleum hydrocarbons from oil seepage beneath the seafloor. The lack of n-alkanes in samples S-8 and S-11 is indicative of severe biodegradation. Only sample S-1 contains methanogenic archaea-sourced lipid biomarkers, in particular 2, 6, 10, 15, 19-pentamethylicosenes containing 1–5 unsaturated double bonds. These compounds are distributed between n-C22 and n-C24 in the aliphatic fraction and have very depleted 13C values ranging from -86.7 per mill to -115.5 per mill, compared to the d13C values of adjacent n-alkanes ranging from -28.4 per mill to -34.6 per mill. The occurrence and carbon isotopic compositions of these compounds suggest that the S-1 sample site is likely to be associated with a gas venting system or a gas hydrate setting.

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1177344 MICROBIOLOGICAL EXPLORATN -- GEOCHEMISTRY
SURFACE MICROBIOLOGY RESPONSES FOR THE IDENTIFICATION OF HYDROCARBON ACCUMULATIONS ASSOCIATED WITH STRATIGRAPHIC AND STRUCTURAL TRAPS: SOUTH AMERICAN EXAMPLES [RESPUESTAS DE LA MICROBIOLOGIA DE SUPERFICIE PARA LA IDENTIFICACION DE ACUMULACIONES DE HIDROCARBUROS ASOCIADAS A TRAMPAS ESTRATIGRAFICAS Y ESTRUCTURALES: EJEMPLOS DE SUDAMERICA]; D.Malizia, G.Prestia and O.Caccaglio (Geo-Microbial Technol SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 6 pp; In Spanish)

The microbial surface technique is an indirect geochemical method used as an indicator of light hydrocarbon (C1 - C4) migration pathways and/or leakage from individual petroleum accumulations. In this study, the behaviour of these surface geochemical anomalies in different geological environments is analyzed. Planning an adequate survey design according to the objectives and careful integration of the results with conventional techniques is the key to make this method a reliable tool to integrate with geological and geophysical interpretation. From the structural point of view this has permitted verification that not all faults are associated with surface geochemical anomalies; this could be interpreted that not all of them are migration paths. Another empirical verification is that just the faults associated to hydrocarbon accumulations show significant surface geochemical anomalies. In areas where vertical and lateral facies variations are observed, the surface geochemical method offers a reliable alternative to search for stratigraphic traps. The adequate mapping of a surface geochemical anomaly may reflect in depth the presence and shape of a hydrocarbon-charged reservoir.

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1177345 NEUQUEN BASIN -- GEOCHEMISTRY
SOFT INORGANIC GEOCHEMISTRY APPLIED TO SEDIMENTOLOGY AND MINERALOGY 3D MODELING OF BLACK SHALE, VACA MUERTA FORMATION, NEUQUEN BASIN, ARGENTINA; H.O.Gomez, C.N.Larriestra, A.Nawratil and F.Larriestra.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Soft inorganic geochemistry can be defined as the spatial modeling of geochemical data, which puts more emphasis on greater amount of data, its spatial behavior and the relationship with other data types (geology, mineralogy, organic geochemistry and geophysics) rather than chemical analysis precision. The workflow involves non-destructive chemical analysis of rock samples and the geostatistical processing to integrate with well log and seismic data, producing unconventional resources 3D models. The methodology integrates the non-destructive analysis of the entire sample population available using rapid handheld x-ray fluorescence analysis (HHXRF), the selection of a representative sample for destructive analysis of mineralogy (XRD) and organic geochemistry. Statistical analysis of relationships between HHXRF, XRD and TOC data are made by regression analysis. The integration of rock and well log data is performed using 1D Gaussian cosimulation to produce geochemical and mineralogical logs. Finally, the integration of geochemical and mineralogical logs with seismic attributes is made using a Bayesian approach in sequential indicator cosimulation. This methodology was applied to build an integrated 3D model for Vaca Muerta formation source rock, in a mature oil field of Neuquen basin, Argentina. (Original not available from T.U.)

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1177346 NORWEGIAN SEA -- GEOCHEMISTRY
A UNIQUE HYDROCARBON-SEEP AND HYDRATE MEDIATED ECOSYSTEM AT NYEGGA-G11, OFF MID-NORWAY; M.Hovland and L.P.Myhre (Bergen Univ; Statoil ASA).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1741-1; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177347 OROCUAL FIELD -- GEOCHEMISTRY
CHARACTERIZATION OF A COMPOSITIONAL RESERVOIR IN THE OROCUAL FIELD, EASTERN VENEZUELA BASIN [CARACTERIZACION DE UN YACIMIENTO COMPOSICIONAL EN EL CAMPO OROCUAL, CUENCA ORIENTAL DE VENEZUELA]; A.Marin and L.Montilla (Petroleos Venezuela SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 7 pp; In Spanish)

The presence of a marked variation in crude oil density ranging from 6°API to 42°API in deposits belonging to Los Jabillos - Caratas formations in the Orocual Field of the Eastern Basin of Venezuela, added to the results obtained from the drilling of exploratory wells and field data, pose a hypothesis of the existence of a reservoir of compositional character in the area; confirmation was obtained by geochemical characterization of fluids that demonstrate the correlation of crude source area, levels of thermal maturity, and possible evidence of post-entrapment alteration processes, resulting in a compositional reservoir model that supports hydraulic connectivity or compartmentalization with an analysis of the variation of fluid and pressure gradients in the reservoir. This study represents evidence for a possible tarmat in the Orocual structure, that is, the presence of an asphaltic oil level, such as occurs in the neighboring fields of Furrial, Corozo and Carito of the Eastern Venezuela Basin.

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1177348 OXYGEN ISOTOPE RATIO -- GEOCHEMISTRY
TRANSIENT NATURE OF THE EARTH'S CLIMATE AND THE IMPLICATIONS ON THE INTERPRETATION OF BENTHIC (DELTA)18O RECORDS; B.Boer, R.S.W.van de Wal, L.J.Lourens and R.Bintanja (Utrecht Univ; Royal Netherlands Inst).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1837; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177349 PALEOCLIMATE -- GEOCHEMISTRY
CALIBRATION AND APPLICATION OF THE &quote;CLUMPED ISOTOPE&quote; THERMOMETER TO FORAMINIFERA FOR HIGH-RESOLUTION CLIMATE RECONSTRUCTIONS; A.L.Grauel, T.W.Schmid, B.Hu, C.Bergami, L.Capotondi, L.Zhou and S.M.Bernasconi (Cambridge Univ; ETH Zurich; Natl Res Council (Italy)).. GEOCHIMICA ET COSMOCHIMICA ACTA v.108, pp.125-140, 5/1/2013. (ISSN 0016-7037)

The reconstruction of past ocean temperatures is fundamental to the study of past climate changes, therefore considerable effort has been invested in developing proxies for seawater temperatures. One of the most recent and promising new proxy is carbonate &quote;clumped isotope&quote; thermometry, in particular because it is based on thermodynamic equilibrium and not on biogeochemical proxies. Here, we present a new calibration of the &quote;clumped isotope&quote; thermometer to foraminifera based on seven species of planktic and benthic foraminifera spanning a growth temperature range of ca 2–28°C. We used a newly developed technique for the measurements of small samples to improve the applicability of this method to paleoceanography. Our data have a comparable precision (ca 0.005–0.013‰) and confirm previous calibration studies based on biogenic and inorganic calcite. We discuss possible sources of uncertainty such as over-/underestimation of the calcification temperatures, species-specific vital effects, pH variations between the seawater and the vacuole water of the species and possible kinetic effects on the &quote;clumped isotope&quote; calibration. ... (c2013 Elsevier Ltd.) (Longer abstract available)

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1177350 QUEEN CHARLOTTE ISLANDS -- GEOCHEMISTRY
THE AGE OF THE MAJOR (DELTA)13Corg AND (DELTA)34S HETTANGIAN EXCURSIONS AT KENNECOTT POINT (QUEEN CHARLOTTE ISLANDS, CANADA); J.Guex, A.Bartolini, J.Spangenberg, B.Schoene, V.Atudorei and U.Schaltegger (Lausanne Univ; Paris Museum; Princeton Univ; New Mexico Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1696; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177351 SALT RANGE AREA -- GEOCHEMISTRY
EVIDENCE FOR ATMOSPHERIC CARBON INJECTION DURING THE END-PERMIAN EXTINCTION; E.Schneebeli-Hermann, W.M.Kurschner, P.A.Hochuli, D.Ware, H.Weissert, S.M.Bernasconi, G.Roohi, K.ur-Rehman, N.Goudemand et al. (Utrecht Univ).. GEOLOGY v.41, no.5, pp.579-582, May 2013. (ISSN 1943-2682)

The end-Permian mass extinction is marked by pronounced terrestrial ecosystem turnover and a severe loss of marine invertebrate biodiversity. This extinction event is accompanied by a prominent negative carbon-isotope excursion indicating massive changes in the global carbon cycle across the Permian-Triassic boundary. In this study, we present organic carbon-isotope data from land plant cuticles, fossil wood fragments, and bulk organic matter recovered from the Amb section in the Salt Range, Pakistan. We apply δ13C data from cuticles as a proxy record for the carbon-isotope composition of atmospheric CO2 across the Permian-Triassic boundary. The data show an ca 5.5‰ negative excursion in terrestrial organic matter, reflecting the change in carbon-isotope composition of atmospheric CO2. Our data demonstrate that these atmospheric changes coincide with biotic (mass extinction) and abiotic (carbonate carbon-isotope perturbation) changes in the marine realm, hence affecting the entire ocean-atmosphere system.

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1177352 SIBERIAN LOWLAND -- GEOCHEMISTRY
GEOCHEMICAL CRITERIA OF MESOZOIC OIL AND GAS POTENTIAL OF SOUTHEAST WEST SIBERIA (BY RESULTS OF DRILLING WELLS VOSTOK-1,3,4); A.E.Kontorovich, E.A.Kostyreva, V.N.Melenevsky, V.I.Moskvin and A.N.Fomin.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.1, pp.4-12, 2009. (ISSN 0016-7894; 5 refs; In Russian)

Geochemistry of dispersed organic matter (OM) of Mesozoic deposits of south-east of West Siberia with reference to wells Vostok 1,3,4 was first considered using advanced methods of organic geochemistry. OM analysis of Mesozoic deposits showed that values of biomarker parameters (ratios: n-C27/n-C17, Pr/Ph, steranes C29/C27, cheilantanes 2 (C19 + C20) Ci (i = 23,24,25,26), cheilantane content to hopane sum) suggest predominantly terragene genotype of OM that is also confirmed by OM isotopy data. Aquagene genotype of OM by the listed biomarker parameters was established only in Mariamov, Tarsky, Kulomzinsky and Kiyalinsky suites as confirm OM isotopy data. Judging from immature OM of Mesozoic deposits, these have still not entered the main zone of oil formation and hence, hydrocarbons could not have migrated to a great extent from them. Predominantly terragene genotype of OM with low generation potential of Mesozoic deposits as well as low transformation degree of aquagene OM do not provide grounds for positive evaluation of their oil and gas potential in the territory under consideration. Possible migration from Paleozoic to Mesozoic is not excluded.

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1177353 SIBERIAN LOWLAND -- GEOCHEMISTRY
STRUCTURE MODEL AND GENERATION POTENTIAL OF VOLGIAN DEPOSITS IN THE CONJUNCTION ZONE OF KAIMYSOV ARCH AND NUROL MEGATROUGH; V.A.Kontorovich and L.M.Kalinina.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.1, pp.34-44, 2009. (ISSN 0016-7894; 7 refs; In Russian)

In south-east West Siberia, major unexplored HC resources are concentrated in sandy reservoirs of the Vasyugan suite, and the primary source of HC appears to be the Bazhenov suite. The basic task which should be solved at the stage of oil and gas prospective objects discovery should be the prognosis of rock-and-fluid system properties of sandy beds of Yu1 horizon and evaluation of the generation potential of the Bazhenov suite. The present work accomplished on the base of complex interpretation of seismic exploration materials, well-logging and deep drilling data presents analysis of geological structure and generation potential of Bazhenov suite (Volgian stage). Thus, analysis of the geological structure of the Volgian deposits allows us to propose that differences of geological structure of the Volgian deposits are associated not only with the territory's confinement to different tectonic zones but also with different distance of areas from the plate's framework. Within the investigated territory the Bazhenov suite's deposits have been formed under non-uniform conditions and are characterized by different generation potential.

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1177354 SIBERIAN LOWLAND -- GEOCHEMISTRY
GEOCHEMISTRY OF OIL ASPHALTENES OF WEST SIBERIA; L.S.Borisova.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.1, pp.76-80, 2009. (ISSN 0016-7894; 4 refs; In Russian)

The present work summarizes materials on geochemical composition and structure of asphaltenes of West Siberian oils of different genetic types. The research scheme of asphaltenes includes determination of element composition, HRI, MRIL spectrometry, X-ray structural analysis and electron microscopy. It is shown that oil asphaltenes composition is closely associated with physico-chemical properties of oils. By structural characteristics of hydrocarbon component the asphaltenes of all oil types are much closer by composition to asphaltenes of aquagene organic matter. Most distinctly genetic links &quote;source rock-oil&quote; are reflected in content of sulfur, oxygen and vanadyl-porphyrins. Regulations of geographic localization of oils with asphaltenes of various structure, and gradual change of oils of predominantly aquagene nature, from the central areas of West Siberia towards north and northeastern direction, by predominantly terrigene oil types were noted.

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1177355 SIBERIAN LOWLAND -- GEOCHEMISTRY
SPATIAL DISTRIBUTION REGULARITIES OF GENETIC PARAMETERS BY HYDROCARBON COMPOSITION OF C5-C8 OILS AND CONDENSATES ON THE NORTH OF WEST SIBERIA; E.A.Fursenko.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.1, pp.81-86, 2009. (ISSN 0016-7894; 5 refs; In Russian)

For revealing different-type by composition of hydrocarbons of C5-C8 oils and condensates, more than 500 samples from Mesozoic pools within Nadym-Tazov interfluve and Northern Priobie of West Siberian oil-and-gas-bearing basin have been tested. For the main oil and gas complexes (Lower Middle Jurassic, Upper Jurassic and Lower Cretaceous) there were drawn maps of changing genetic parameters by hydrocarbon composition along area of the region investigated. Analysis of regularities of spatial changing parameters by C5-C8 hydrocarbon composition showed that composition of oils and condensates both on the south and on the north of the investigated region correlates, first of all, with genotype of original oil-source organic matter. It was found that on the north of investigated territory there are localized oils and condensates of predominantly terrigene nature, while to the south, within Northern Priobie, there are hydrocarbon fluids of predominantly aquagene genesis. It should be noted that the tested naphthides are similar by maturity level; therefore, the effect of catagenesis is not shown on information content of genetic characteristics by their light fraction composition.

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1177356 SIBERIAN PLATFORM -- GEOCHEMISTRY
GEOCHEMICAL PREREQUISITES OF OIL AND GAS PROSPECTS OF CAMBRIAN FORMATIONS OF LENA-AMGINSKOYE INTERFLUVIAL AREA (SOUTHEAST OF SIBERIAN PLATFORM); T.M.Parfenova, I.V.Korovnikov, V.N.Melenevsky and V.G.Eder.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.1, pp.87-91, 2009. (ISSN 0016-7894; 5 refs; In Russian)

The present work represents the first results of studying section of Khotochu No7 well of Lena-Amginskoye interfluvial area. Age and composition of sedimentary deposits were established by methods of paleontology and lithology. The collection of Cambrian rocks enriched by organic matter was studied with using bitumen analysis and pyrolysis. Generation properties of potentially oil-source rocks of Kuonam complex were analyzed. In collection of samples the rock groups and subtypes of organic matter were distinguished. It was established that the section of carbonaceous Cambrian deposits has binomial structure. It is shown that carbonaceous and low carbonaceous rocks are characterized by high oil producing properties, OM catagenesis level corresponds to the main oil formation zone. On the basis of geochemical criteria, the prospects of Cambrian oil potential on the southeast of Siberian platform were substantiated.

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1177357 SIBERIAN PLATFORM -- GEOCHEMISTRY
SATURATION HYDROCARBONS-BIOMARKERS IN OILS AND BITUMEN SATURATED CAMBRIAN ROCKS OF THE KHALANG OIL-AND-GAS-BEARING AREA; A.E.Kontorovach and I.D.Timoshina.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.1, pp.92-100, 2009. (ISSN 0016-7894; 5 refs; In Russian)

The work presents the comparing of composition of hydrocarbons-biomarkers of oils and bitumen from Riphean and Vendian rocks of the Khatang oil and gas area. It is shown that oils and bitumen are related to the same genetic type and contain high concentrations of 12- and 13-monomethylalkanes with derivation in the midst of chain; ethylcholestanes in sterane composition, tricyclanes in terpane composition, tricyclane indice 2T19-20/T23-26 and homohopane ratio Hh35/Hh34 < 1. From maltha composition of Riphean deposits it was proposed that catagenesis and migration processes could effect hydrocarbons-biomarkers distribution. The high thermal transformity could be the cause of shifting maximum concentrations towards low molecular compounds manifested in increased tricyclane indice and decreased Hh35/Hh34 ratio. In highly transformed hydrocarbons it should also be expected a decrease of 12- and 13-monomethylalkane concentrations. Due to greater emigration of more compact molecules of tricyclanes the selective accumulation of hopanes may occur.

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1177358 TURKEY -- GEOCHEMISTRY
NEW EVIDENCE FOR A MIXED INORGANIC AND ORGANIC ORIGIN OF THE OLYMPIC CHIMAERA FIRE (TURKEY): A LARGE ONSHORE SEEPAGE OF ABIOGENIC GAS; H.Hosgormez, G.Etiope and M.N.Yalcin (Istanbul Univ; Istituto Nazionale Geofis).. GEOFLUIDS v.8, no.4, pp.263-273, Nov. 2008. (ISSN 1468-8123)

The Chimaera gas seep, near Antalya (SW. Turkey), has been continuously active for thousands of years and it is known to be the source of the first Olympic fire in the Hellenistic period. New molecular and isotopic analyses including methane, light alkanes, hydrogen, carbon dioxide, helium and nitrogen converge to indicate that the seep releases a mixture of organic thermogenic gas, related to mature type III kerogen occurring in Palaeozoic and Mesozoic organic-rich sedimentary rocks, and abiogenic gas produced by low-temperature serpentinization in the Tekirova ophiolitic unit. Methane is not related to mantle or magma degassing. The abiogenic fraction accounts for about half of the total gas released, which is estimated to be well beyond 50 ton/year. Ophiolites and limestones are in contact along a tectonic dislocation leading to gas mixing and migration to the Earth’s surface. Chimaera represents the biggest emission of abiogenic methane on land discovered so far. Deep and pressurized gas accumulations are necessary to sustain the Chimaera gas flow for thousands of years and are likely to have been charged by an active inorganic source.

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1177359 TURKEY -- GEOCHEMISTRY
BIOMINERALIZATION OF HYDROUS Mg CARBONATES IN THE SALDA LAKE, SW. TURKEY: NEW INSIGHTS FROM STABLE Mg ISOTOPES; V.Mavromatis, L.Shirokova, I.Bundeleva, O.Pokrovsky, P.Benezeth, E.Oelkers and E.Gerard (Observatoire Midi-Pyrenees; Globe Inst Physique).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1598; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177360 UNCONVENTIONAL RESOURCE -- GEOCHEMISTRY
GEOCHEMICAL CONTROLS ON SHALE MICROSTRUCTURE; J.J.Valenza II, N.Drenzek, F.Marques, M.Pagels and M.Mastalerz (Schlumberger Doll Research; Schlumberger Innovat Ctr; Indiana Geological Survey).. GEOLOGY v.41, no.5, pp.611-614, May 2013. (ISSN 1943-2682)

The uptick in hydrocarbon production from shale in the U.S. has generated interest in metrics of unconventional reservoir quality, like permeability. We use conventional gas sorption to characterize shale microstructure, which provides insight on the features that govern mass transport. The gas sorption data are analyzed to determine the surface area, AS (sq m/g), and pore volume, VP (cu cm/g) of 30 samples from basins across North America. With this information, we quantify the effect of composition and thermal maturity on shale microstructure. In particular, we find that the specific surface area of the organic component evolves from ca 50 sq m/g total organic carbon (TOC) in immature shale to ca 500 sq m/g TOC for regions that produce dry gas. The increase in AS is accompanied by an increase in VP and concomitant decline in average pore size (e.g., rH=4VP/AS). We contend that the latter is due to the development of nanometer-sized pores in kerogen as it is converted to mobile hydrocarbon which is ultimately expelled.

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1177361 VANCOUVER ISLAND AREA -- GEOCHEMISTRY
ANAEROBIC METHANE OXIDATION IN LOW-ORGANIC CONTENT METHANE SEEP SEDIMENTS; J.W.Pohlman, M.Riedel, J.E.Bauer, E.A.Canuel, C.K.Paull, L.Lapham, K.S.Grabowski, R.B.Coffin and G.D.Spence (US Geological Survey).. GEOCHIMICA ET COSMOCHIMICA ACTA v.108, pp.184-201, 5/1/2013. (ISSN 0016-7037)

Sulfate-dependent anaerobic oxidation of methane (AOM) is the key sedimentary microbial process limiting methane emissions from marine sediments and methane seeps. In this study, we investigate how the presence of low-organic content sediment influences the capacity and efficiency of AOM at Bullseye vent, a gas hydrate-bearing cold seep offshore of Vancouver Island, Canada. The upper 8 m of sediment contains <0.4 wt.% total organic carbon (OC) and primarily consists of glacially-derived material that was deposited 14,900–15,900 yrs BP during the retreat of the late Quaternary Cordilleran Ice Sheet. We hypothesize this aged and exceptionally low-OC content sedimentary OM is biologically refractory, thereby limiting degradation of non-methane OM by sulfate reduction and maximizing methane consumption by sulfate-dependent AOM. A radiocarbon-based dissolved inorganic carbon (DIC) isotope mass balance model demonstrates that respired DIC in sediment pore fluids is derived from a fossil carbon source that is devoid of 14C. ... (c2013 Elsevier Ltd.) (Longer abstract available)

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GEOPHYSICS

table of contents list of publications

1177362 AIR GUN -- GEOPHYSICS
MODELING CLOSE-RANGE AIR-GUN INTERACTIONS USING ISOSURFACES OF THE VELOCITY POTENTIAL; D.Barker and M.Landro (PGS; Norwegian Univ Sci Technol).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 2.2; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

We describe an alternative way of modeling clustered air guns, by allowing the shape of the air bubbles to be described by isosurfaces of an incompressible velocity potential, as opposed to the traditional way of considering them as perfect spheres. This method solves some close-range interaction problems, and may possibly be used as a basis for a more complete modeling of clustered air guns. (Longer abstract available)

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1177363 AMPLITUDE VERSUS OFFSET -- GEOPHYSICS
HOW SEISMIC ANISOTROPY IMPROVES THE RELIABILITY OF EXPLORATION DHI (AVO); M.Ferla, F.de Finis and R.Bacenetti (Eni E&P).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-04; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

The role of seismic anisotropy has dramatically increased over the past two decades due to advances in parameter estimation. Many seismic processing and inversion methods take into account anisotropy. The inadequacy of isotropic velocity models has been emphasized in prestack depth migration, which is highly sensitive to the accuracy of the velocity field. At the same time this study demonstrates how amplitude variation with offset analyses are sensitive to anisotropy. The correct integration between different seismic processing steps that incorporate anisotropic models represents a valid support for the identification of explorative targets. A new integrated workflow has been developed in terms of anisotropic Thomsen parameters estimation, velocity and AVO models. We present interesting results of modelling for special cases of exploration interest, highlighting the anisotropic effects for gas sands encased in shales. The analysis has been also performed on a real dataset, confirming the relevance of models that account for the seismic anisotropy. This could explain the inability of elastic synthetics to match the prestack amplitudes of field data in some cases. These considerations lead to more realistic reservoir models and hopefully answer some of the unexplained pitfalls in AVO interpretation. (Longer abstract available)

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1177364 ANDES MT AREA -- GEOPHYSICS
THE CHALLENGE OF APPLYING NEW TECHNOLOGIES TO EXPLORATION IN SUB-ANDEAN BASINS; M.Benabentos, P.Munoz, J.Uribe, F.Ortigosa and D.Jones (Repsol; Repsol Peru).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 7 pp)

Sub-Andean Basins are characterized by high dipping layers, lateral velocity variations, complex near surface, abrupt topography changes, and environmental constraints. Different data acquisition and processing technologies promise geophysical solutions to these specific problems: CMP data acquisition and processing, Kirchhoff PSTM, PSDM Imaging, tomographic solution for near surface, ray tracing based survey design, long offset - low fold seismic, and wave equation migration in shot domain. The final goal is to reduce uncertainty in structural interpretation. However each technology is based on a particular approach with some constraints. Therefore achievement of this final goal in these complex areas with available technologies is an iterative optimization process, provided that a structurally driven survey design was performed to provide adequate sampling under these environmental constraints. The data processing approach has to take advantage of the different new technologies to reduce uncertainty in interpretation. Interaction with several data processing contractors and iterations for velocity model in a relatively short time is a challenge. Interaction between interpreters and data processing contractors is critical. We present case histories to illustrate and evaluate the application of these developments together with our integrated workflow.

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1177365 ATLANTIS FIELD -- GEOPHYSICS
A MARINE NODE SIMULTANEOUS SOURCE ACQUISITION TRIAL AT ATLANTIS, GULF OF MEXICO; Q.Zhang, R.Abma and I.Ahmed (BP).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 3.4; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

Inspired by the success of independent simultaneous source (ISS) acquisition in land surveys, BP acquired its first marine ISS trial at the Atlantis field in the Gulf of Mexico in 2009. The trial used an ocean bottom node acquisition, whose continuous recording system met the ISS requirement well. The trial survey lasted for three days with a major test of two source vessels shooting simultaneously and independently. Completing the same survey with a conventional acquisition would double the survey time since only one source vessel would be in operation. The ISS data was processed through a sparse inversion algorithm to separate the blended source signals. The results show that the majority of the interfering source noise is significantly suppressed after the inversion. The deblended ISS data was then processed with exactly the same workflow for the conventional acquisition. The migrated images and gathers of the ISS acquisition data were then compared to those of the conventional acquisition processed using almost identical shot and receiver locations. The results show they are very similar, if different water velocities are considered. (Longer abstract available)

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1177366 AUSTRIA -- GEOPHYSICS
ESTIMATION OF GAS SATURATION CHANGES FROM FREQUENCY-DEPENDENT AVO ANALYSIS; X.Wu, M.Chapman, E.Angerer and X.Li (British Geological Survey; Edinburgh Univ; OMV Explor & Prod GmbH).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-03; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Seismic attenuation is believed to be sensitive to many reservoir parameters of interest, but its routine application is inhibited by the lack of reliable quantitative relationships which can relate observed behaviour directly to rock and fluid properties. This paper calibrates a frequency-dependent rock physics model for a gas field in Austria, through analysis of well log-data and frequency-dependent AVO analysis of seismic reflection data. Analysis of the model reveals the potential to estimate changes in gas saturation which cannot be detected with the standard, single frequency approximation. (Longer abstract available)

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1177367 BARENTS SEA -- GEOPHYSICS
STOCHASTIC VELOCITY INVERSION OF SEISMIC REFLECTION/REFRACTION TRAVELTIME DATA FOR RIFT STRUCTURE OF THE SOUTHWEST BARENTS SEA; S.A.Clark, J.I.Faleide, J.Hauser, O.Ritzmann, R.Mjelde, J.Ebbing, H.Thybo and E.Flueh (Statoil Research Centre; Oslo Univ).. TECTONOPHYSICS v.593, pp.135-150, 5/8/2013. (ISSN 0040-1951)

We present results from an active-source, onshore–offshore seismic reflection/refraction transect acquired as part of the PETROBAR project (petroleum-related studies of the Barents Sea region). The 700 km long profile is oriented NW–SE, coincident with previously published multichannel seismic reflection profiles. We utilize layer-based raytracing in a Markov Chain Monte Carlo (MCMC) inversion to determine a probabilistic velocity model constraining the sedimentary rocks, crystalline crust, and uppermost mantle in a complex tectonic regime. The profile images a wide range of crustal types and ages, from Proterozoic craton to Paleozoic to early Cenozoic rift basins; and volcanics related to Eocene continental breakup with Greenland. Our analyses indicate a complex architecture of the crystalline crust along the profile, with crystalline crustal thicknesses ranging from 43 km beneath the Varanger Peninsula to 12 km beneath the Bjørnøya Basin. Assuming an original, post-Caledonide crustal thickness of 35 km in the offshore area, we calculate the cumulative thinning (β) factors along the entire profile. ... (c2013 Elsevier B.V.) (Longer abstract available)

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1177368 BARNETT SHALE -- GEOPHYSICS
TOWARDS SELF-CONSISTENT MICROSEISMIC-BASED INTERPRETATION OF HYDRAULIC STIMULATION; M.J.Williams, J.H.Le Calvez and J.Stokes (Schlumberger Gould Res; Schlumberger; EagleRidge Operating LLC).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-01-15; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

The primary role of microseismic interpretation in the context of hydraulic fracture monitoring (HFM) is to provide understanding of the geometry of a placed hydraulic fracture treatment to enable better completion design, reliable production predictions, and real-time operational decisions during the treatment itself. One aspect of this interpretation is the identification of microseismic events that are related to the fluid filled fracture propagation directly as distinct from those events which are not. We present a method to statistically identify clusters of microseismic events whose spatial and temporal separation are consistent with the propagation of a hydraulic fracture system, according to various standard models of fracture propagation. We then apply this interpretation to a forward model of complex fracturing to obtain consistency with the pumped data. We subsequently review that complex fracture model via a finite element geomechanical simulation, interpreting via elastic-brittle failure analysis and plastic deformation, to understand the potential source of microseismicity. Our principal finding is that it is possible to obtain a self-consistent interpretation between both fracture propagation and earth stress simulation by following this approach. (Longer abstract available)

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1177369 CARBONATE RESERVOIR -- GEOPHYSICS
TOMOGRAPHY WITH GEOLOGICAL CONSTRAINTS: AN ALTERNATIVE SOLUTION FOR RESOLVING OF CARBONATES; O.Zdraveva, S.Hydal and M.Woodward (WesternGeco).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-04; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Carbonates are often present in close proximity to salt in the sedimentary basins around the world. They could be highly heterogeneous and in addition are often interspersed with lower-velocity sediments. The occurrence of high-velocity contrast layering in some portion of the lithology section could pose a problem for grid tomography and may result in insufficient resolution and poor delineation of the layer boundaries, unless many iterations of high-resolution tomography are run. We present a method for successful delineation of carbonate layers by introducing implicit and explicit geological constraints during the global common image point (CIP) tomography updates. The use of geological constraints in the CIP tomography yields high-resolution models over large areas of significant complexity with a reduced number of iterations. In addition, it eliminates the need to consider separate geobodies and multilayer representation of the medium. We show examples of successful application of this method to data sets with variable acquisition geometries from the Gulf of Mexico and offshore West Africa. (Longer abstract available)

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1177370 CARBONATE RESERVOIR -- GEOPHYSICS
GABOR DECONVOLUTION BASED ON HYPERBOLIC SMOOTHING IN LOG SPECTRA; X.Sun, S.Z.Sun, X.Zhou and W.Meng.. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-06-03; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

The choice of t-f smoothing method is viewed as a significant procedure of Gabor deconvolution. Inspired by homomorphic deconvolution, this paper extends Gabor deconvolution into the log spectra, wherein the explicit linear form of nonstationary convolution model brings great facilities for studying its reverse process. More pertinently, we propose a hyperbolic smoothing method there, in which the linear analysis is iteratively employed to approach the factorization task. Since divisions are transformed to subtractions in log spectra, the usage of the pre-whitening factors in the iteration is avoided, thus reducing human intervention and boosting calculation accuracy. Moreover, a simple piecewise linearization is also introduced to enhance this technique's practical value. Our experiences on reef reservoir and carbonate reservoir show that nonstationary deconvolution based on this new hyperbolic smoothing can acquire higher resolution than ordinary hyperbolic smoothing, thus providing more detailed information and revealing more subtle geological phenomena, which enable better reservoir characterizations and definitions. (Longer abstract available)

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1177371 CATATUMBO AREA -- GEOPHYSICS
REDUCING THE NEAR SURFACE EFFECT IN SEISMIC REFLECTION DATA: CATATUMBO BASIN EXAMPLE [REDUCIENDO EL EFECTO DEL ESTRATO SOMERO EN DATOS SISMICOS DE REFLEXION: UN EJEMPLO DE LA CUENCA DEL CATATUMBO]; D.Rueda, W.Agudelo and G.Ojeda (Santander Industrial Univ; Inst Colombiano Petroleo; Ecopetrol).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 11 pp; In Spanish)

The variability and low values of near surface velocity have a large effect in seismic travel times. Correcting the effect caused by the near surface allows better imaging by improving the response of stacking. The study of the geological properties of the near surface and direct recording of travel times in downholes can help assess and calibrate near surface and stacking velocities. Four 60 m depth holes were sampled and equipped with receivers to perform a downhole acquisition over a seismic survey in the Catatumbo Area (NE. Colombia), a region with topographical and structural complexities. The geological characteristics of the near surface were determined by macroscopic analysis and laboratory showing oxides related to the tropical chemical weathering. These results were correlated with velocities derived from travel times measured in downholes. Five different methods for the near surface thickness and velocity estimation were tested: delay time (DLT), plus minus, generalized reciprocal method (GRM), GRM-SSM and tomography all using refraction arrival times. Downhole results were used to verify these models. Correction of near surface effect improves the response of the stacked reflectors generating more continuity, reducing cycle skips in fault zones and allowing better visualization of geological structures.

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1177372 CHINA -- GEOPHYSICS
EDGE DETECTION IN POTENTIAL-FIELD DATA BY ENHANCED MATHEMATICAL MORPHOLOGY FILTER; L.Li, G.Ma and X.Du (Jilin Univ).. PURE AND APPLIED GEOPHYSICS v.170, no.4, pp.645-653, April 2013. (ISSN 1420-9136)

Enhancement on the edges of the causative source is an indispensable tool in the interpretation of potential-field data. There are a number of methods for recognizing the edges, most of which involve high-pass filters based on derivatives of potential field data. A new edge-detection method is presented, called the enhanced mathematical morphology (EMM) filter. The EMM filter uses the ratio of the erosion of the total horizontal derivative to the dilation of total horizontal derivative to recognize the edges of the sources, and can display the edges of the shallow and deep bodies simultaneously. The EMM filter does not require the computation of vertical derivatives, which makes this method computationally stable. The EMM filter is tested on synthetic and real potential field data in China. Compared to other edge-detection filters, the new method is able to recognize the source edges more clearly, and the outputs are more insensitive to noise.

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1177373 CHUCHUPA FIELD -- GEOPHYSICS
AVO ANALYSIS OF A HIGH IMPEDANCE FIELD: THE CASE OF CHUCHUPA GAS FIELD [ANALISIS DE AVO DE UN YACIMIENTO DE ALTA IMPEDANCIA: CASO CAMPO DE GAS CHUCHUPA]; M.Cediel and L.Montes (Ecopetrol SA; Colombia Nacional Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

The Chuchupa field, located in northern Colombia, has produced gas during 30 years. It is covered with 2D seismic acquired in different campaigns. Nevertheless, it is not possible to observe amplitude anomalies related to gas accumulation. The main objective of this study was to perform an AVO analysis and characterize the seismic reservoir response in order to find links between the amplitude information and the gas accumulation. The input data were a pre-stack 2D seismic line that covers the field and a set of logs of a vertical well. The first way to describe the seismic signal was to calculate a synthetic CDP using the well logs and compare it with the real CDPs. The result shows that the reservoir top is represented by a low amplitude pick that decreases when the offset increases, but phase never changes. The correlation with real CDPs is high close to the well location where the gas saturation is 100%. The second way is interpreting the information of the intercept vs. gradient graph from real CDPs; that shows anomalous points in IV quadrant over background.

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1177374 COLOMBIA -- GEOPHYSICS
SEISMIC EVIDENCE OF TECTONIC WEDGING IN FOUR COLOMBIAN BASINS: CASE STUDIES; D.Tobar-Cock (Geotec Ltda).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 11 pp)

Tectonic wedging has been previously recognized at the foreland borders of most fold and thrusts belts of the world including the Colombian Andes. New interpretations of old 2D seismic data revealed the geometry of numerous blind intracutaneous wedges near the thrust fronts of four Colombian basins, including Upper Magdalena, Middle Magdalena, Putumayo, and Eastern Llanos. Because of inherited extensional history prior Cretaceous and subsequent Cenozoic structural inversion of Eastern Cordillera, tectonic wedging exhibits two features not documented earlier: opposite vergence (towards the hinterland) and location ahead of the frontal triangular zone. In addition, 2D seismic data constrained three-dimensional geometry of an intracutaneous wedge related to a new 50 MMBO oil field in the Eastern Llanos Basin. Incipient tectonic wedges were found bounded by four fault surfaces: a normal-inverted fault at the bottom, a thrust at the crest, and two divergent high-angle lateral ramps at the flanks. Seismic interpretations included in the present study lead to postulate tectonic wedging as a new, not previously documented, structural play in Colombian sub-Andean basins.

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1177375 COLOMBIA -- GEOPHYSICS
ESTIMATION OF NET SAND THICKNESS IN TRANSITIONAL RESERVOIRS BASED ON MULTI-ATTRIBUTE ANALYSIS: BARCO FORMATION, SARDINATA FIELD, COLOMBIA [ESTIMACION DE ESPESOR DE ARENA NETA EN RESERVORIOS TRANSICIONALES CON BASE EN ANALISIS DE MULTI-ATRIBUTOS: FORMACION BARCO, CAMPO SARDINATA, COLOMBIA]; G.Y.Ojeda, P.A.Garcia, J.L.Rubiano, F.H.Gomez, N.A.Rojas, I.C.Restrepo-Correa and J.P.Aguilera (Ecopetrol SA; Natfrac).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 6 pp; In Spanish)

The Barco Formation in the Catatumbo Basin in Colombia has a complex architecture of overlapping sub-tidal, intertidal and supra-tidal channel type deposits. As a result of this mixture of environments, the Barco lithology is diverse, from mudstones to sandstones, and occasionally coal. In order to gain a better understanding of the spatial distribution of the sandstones in the Barco Formation in the Sardinata Field, we present a methodology that includes 3D seismic multi-attribute analysis from which the thickness of sands in this reservoir is estimated. The methodology includes six steps. (1) Seismic interpretation tops and bases of three stratigraphic cycles using manual tracing horizons. The automatic route is inefficient when horizons are discontinuous horizons. (2) Inversion of seismic amplitudes in order to extract the acoustic impedance volume. Such inversion was carried out using the band-limited inversion algorithm. (3) Generation of sand contour maps, based on the estimation of sands from well logs (GR and SP). (4) Formulation of hypotheses by scanning morphological pattern attribute maps. (5) Calculation of attribute values from seismic amplitudes and impedances and profiling of statistical correlation (crossplotting). (6) Multi-variate linear regression for each stratigraphic cycle, allowing the best ratio between thickness of sands from attributes.

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1177376 COLOMBIA -- GEOPHYSICS
DISTINGUISHING COMMERCIAL GAS AND FIZZ GAS BY AVO ATTRIBUTE ANALYSIS AND FLUID SUBSTITUTION MODELING [DISCRIMINACION DE GAS COMERCIAL Y GAS FIZZ MEDIANTE ANALISIS DE ATRIBUTOS AVO Y MODELADO DE SUBSTITUCION DE FLUIDOS]; L.Giraldo, A.Calle, M.Plata and C.Pineda (UIS-ICP; Ecopetrol-ICP; UT-EOS-DTH; Santander Industrial Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 7 pp; In Spanish)

Helping to recognize areas of potential commercial interests, AVO attribute analysis based on geophysical models, rock physics and seismic modeling has become an important tool in studies of oil exploration projects. Unfortunately it has been recognized that it is difficult to discriminate commercial gas-saturated rocks (over 50%) from those with low content (1-10%), named gas fizz, using only the AVO analysis (amplitude vs. offset). Failures have been reported in the literature where fizz gas has been the source of misinterpretation of commercial hydrocarbon indicators. In this work, geophysics and petrophysics were integrated to observe the response of the Colombian Caribbean rocks using information from all available well logs. Through seismic modeling, fluid substitution and attributes extraction, hydrocarbon indicators were evaluated making reliable identification and discrimination of commercial gas and fizz gas.

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1177377 COLOMBIA -- GEOPHYSICS
VELOCITY EFFECT IN UNDERLYING STRUCTURES OF FAULTS: FAULT SHADOWS [EFECTO DE LAS VELOCIDADES EN LAS ESTRUCTURAS SUBYACENTES A FALLAS: SOMBRAS DE FALLA]; N.M.Martinez Andrade and W.M.Agudelo (Santander Industrial Univ; Ecopetrol).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 6 pp; In Spanish)

In this paper, based on 2D synthetic depth models, the typical response is shown in PSTM sections of the zones known as fault shadow. Initially, from well data in the Catatumbo Basin in the Northeast of Colombia, a synthetic depth model was built using well velocities and tops. From this model other models were made changing the fault angle, throw fault and the interval velocities. Each depth model is seen in seismic time section and compared to the fault shadow image result between each variant of the original model. In total, nine changes in the original synthetic model were made to compare the response of the fault shadow zone generated by each geological feature.

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1177378 COLOMBIA -- GEOPHYSICS
THE ILLUMINATION AND SHADOWS OF SEISMIC ACQUISITION IN THE PIEDMONT [LA ILUMINACION Y LAS SOMBRAS DE LA ADQUISICION SISMICA EN EL PIEDEMONTE]; S.Guevara, C.Piedrahita, W.Agudelo and G.Alvarez (Ecopetrol-ICP; InforPetrol SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 4 pp; In Spanish)

Methods of seismic data acquisition affect seismic imaging in the Piedmont areas of Colombia and quality is generally unsatisfactory. Here we consider previous experiences and possible improvements in acquisition methods and design parameters.

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1177379 COLOMBIA -- GEOPHYSICS
MULTICOMPONENT SEISMIC IN SUBANDEAN BASINS: FACTS AND POSSIBILITIES [LA SISMICA MULTICOMPONENTE EN CUENCAS SUBANDINAS: HECHOS Y POSIBILIDADES]; S.Guevara, W.Agudelo, G.Alvarez (Ecopetrol-ICP; InforPetrol).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 5 pp; In Spanish)

The conventional seismic method using acoustic waves or compressional (P-waves), has been a tool of great utility in hydrocarbon exploration. Multicomponent seismic multicomponent, or 3C, is a technological breakthrough that also detects S waves and other vector characteristics of the wave field. This technology has the potential to detect fractures and identify lithologic characteristics, among others, applicable in sub-Andean basins.

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1177380 COLOMBIA -- GEOPHYSICS
BATHYMETRY IN THE SOUTH OF PACIFIC COLOMBIA [BATIMETRIA EN EL SUR DEL PACIFICO COLOMBIANO]; J.Ortiz, L.Hermann, J.C.Acosta, J.C.Restrepo, G.A.Torres and L.A.Briceno (CIOH; Agencia Nac Hidrocarburos).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

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1177381 COLOMBIA -- GEOPHYSICS
SEISMIC IMAGING OF TRAVEL TIME IN DIFFERENT SEDIMENTARY BASINS IN COLOMBIA [LA IMAGEN SISMICA A TRAVEZ DEL TIEMPO EN DIFERENTES CUENCAS SEDIMENTARIAS DE COLOMBIA]; H.A.Alfonso (Ecopetrol).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

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1177382 COLOMBIA -- GEOPHYSICS
INTERPRETATION OF THE &quote;A&quote; AND &quote;B&quote; REFLECTORS IN THE EASTERN PART OF THE COLOMBIAN CARIBBEAN OFFSHORE: AN APPROACH TO THE SEISMIC STRATIGRAPHY OF THE SOUTHERN CARIBBEAN; E.Torres, H.Rodriguez and M.Garcia-Gonzalez.. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

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1177383 COLOMBIA -- GEOPHYSICS
HIGH-RESOLUTION INTERPRETATION IN THE LLANOS BASIN, COLOMBIA; G.Rodriguez, H.Garzon, J.A.Stein, S.Humphrey and G.Fajardo (Cepcolsa; Geotrace).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 4 pp; Abstract only)

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1177384 COLOMBIA -- GEOPHYSICS
QUANTITATIVE SEISMIC INTERPRETATION WORKFLOWS FOR EXPLORATION IN COLOMBIAN FRONTIER BASINS; M.A.Gutierrez (BHP Billiton Petroleum Inc).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

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1177385 COLOMBIA -- GEOPHYSICS
BOREHOLE ELECTRICAL IMAGERY: A POWERFUL TOOL IN COMPLEX RESERVOIR CHARACTERIZATION; R.Martinez, I.Nieves, M.Frass, J.Piedrahita and C.Rincon (Weatherford Colombia; Weatherford Houston; Ecopetrol SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

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1177386 COTTON VALLEY OIL FIELD -- GEOPHYSICS
CORRELATION BETWEEN SPATIAL AND MAGNITUDE DISTRIBUTIONS OF MICROEARTHQUAKES DURING HYDRAULIC FRACTURE STIMULATION; J.P.Verdon, A.Wuestefeld, J.T.Rutledge, I.G.Main and J.M.Kendall (Bristol Univ; Engineering Seismology Grp; Schlumberger; Edinburgh Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-01-12; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Seismic and microseismic event populations can be characterized by their spatial and magnitude distributions. The magnitude distribution is described by the Gutenberg-Richter b value. The spatial distribution can be described by the two-point correlation coefficient, Dc. We observe spatio-temporal variations in both b and Dc during hydraulic fracture stimulation in the Cotton Valley tight gas reservoir. We find that during the initial stages of the fracture stimulations, b is high while Dc is low, implying that deformation is dominated by smaller events clustered at points near the injection well. As injection progresses, b decreases and Dc increases. We investigate correlation between b values and Dc, which can be indicative of the style of fracturing. Initially, b and Dc are negatively correlated, consistent with mechanical weakening during the early stages of fracturing. As the stimulation progresses, b and Dc become positively correlated, consistent with later stabilization of the fractures and mechanical hardening when the induced fracture intersects a pre-existing fault. The mechanism of hardening may be crack blunting while propagating into a pre-existing fractured or damaged zone. (Longer abstract available)

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1177387 COTTON VALLEY OIL FIELD -- GEOPHYSICS
MONITORING THE EVOLUTION OF FRACTURE COMPLIANCES DURING HYDRAULIC STIMULATION USING PASSIVE SEISMIC DATA; A.F.Baird, J.P.Verdon and J.M.Kendall (Bristol Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-01-13; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Seismic anisotropy is a useful attribute for the detection and characterization of aligned fracture sets in petroleum reservoirs. While many techniques to estimate anisotropy have been successful in inferring fracture density and orientation, they generally provide little constraint on the ability of the fractures to facilitate fluid flow. A potentially useful property to provide insight into this is the ratio of the normal to tangential fracture compliance (ZN/ZT). ZN/ZT is sensitive to many properties including: the stiffness of the infilling fluid, fracture connectivity and permeability, and the internal architecture of the fracture. Here we demonstrate a method to infer ZN/ZT using shear wave splitting measurements on two microseismic datasets from hydraulic stimulations. Both examples show apparent increases in ZN/ZT during the stimulation process. We suggest that this may be produced by the development of new, clean fractures that have a greater normal compliance than their natural counterparts, combined with increases in fracture connectivity and permeability. The ability to monitor ZN/ZT during stimulations provides a means to gain insight into the evolving flow properties of the induced fracture network, and may be beneficial for assessing the effectiveness of stimulation strategies. (Longer abstract available)

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1177388 DALARNE AREA -- GEOPHYSICS
THE SARNA RING, A CIRCULAR MAGNETIC ANOMALY IN THE COUNTY OF DALARNA, SWEDEN; L.Kubler, T.Lundqvist and J.O.Svedlund (Sweden Geological Survey).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1701; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177389 DATA ACQUISITION -- GEOPHYSICS
DECENTRALIZED BLENDED ACQUISITION; G.Berkhout (Delft Univ Technol).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 1.2; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

The concept of blending and deblending is reviewed, making use of traditional and dispersed source arrays. The network concept of distributed blended acquisition is introduced. A million-trace robot system is proposed, illustrating that decentralization may bring about a revolution in the way we acquire seismic data in the future. (Longer abstract available)

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1177390 DATA ACQUISITION -- GEOPHYSICS
ROBOTIZATION IN SEISMIC ACQUISITION; G.Blacquiere and G.Berkhout (Delft Univ Technol).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 1.3; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

The amount of sources and detectors in the seismic method follows Moore’s Law of seismic data acquisition, i.e., it increases approximately by a factor of 10 every 10 years. Therefore, automation is unavoidable, leading to robotization of seismic data acquisition. Recently, we introduced a new source concept that replaces today’s complex, local, broadband source arrays by distributed source arrays of simple, narrow-band sources (DSA). This concept is not only most favorable for blended acquisition, it is also very suitable to decentralize the entire seismic acquisition system. In other words, think of a relatively large number of autonomous shooting boats (N), each boat equipped with a simple, narrow-band source and a local vector cable with M sensors. Together, all narrow-band sources illuminate the subsurface with an incoherent wavefield that is characterized by a high spatial and temporal bandwidth. Since each of the N sources fires into the M sensors of each of the N cables, the number of acquired multi-offset, multi-azimuth traces equals MN2. On land, data collection could be automated by introducing wireless geophones to be planted by robots. (Longer abstract available)

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1177391 DATA ACQUISITION -- GEOPHYSICS
OPTIMAL RESTRICTION MODELING: A NEW APPROACH TO STATION POSITIONING; K.Millis and C.Crook (OptiSeis Solutions Ltd).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 1.5; Available at http://www.seg.org as of 10/29/2013; 4 pp; Expanded abstract)

Surface restrictions to seismic acquisition increasingly limit the ability to place stations at their theoretical locations. Consequently, the acquisition design process is faced with increased pressure to model programs with surface perturbations in mind (Cooper, 2004). An optimal restriction modeling method requires reshaping the surface design process to one that is driven by sampling, attribute and imaging objectives and also respects restrictions and operational efficiencies. (Longer abstract available)

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1177392 DECONVOLUTION -- GEOPHYSICS
GABOR DECONVOLUTION - HYPERBOLIC SMOOTHING WITH VARIABLE-STEP SAMPLING; F.Li, S.D.Wang and X.H.Chen (China Univ Petroleum).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-06-04; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Estimation of nonstationary wavelet from seismic trace is the core problem of the nonstationary deconvolution. The accuracy of estimation wavelet affects the deconvolution result. There are several methods to smooth the Gabor magnitude spectrum of seismic trace, and each of these leads to a distinct method of nonstationary deconvolution. Among all of the methods, hyperbolic smoothing has proven most robust. However, uniform sampling in conventional hyperbolic smoothing cause subsampling in the observable area and oversampling in the noise area. Thus, this lead to an inaccurate wavelet estimation and unreliable deconvolution result. In this paper, we propose a new hyperbolic smoothing method with variable-step sampling (VSS), which can lead to an effective division in the time-frequency plane. Tests on synthetic and real data have shown that more reliable results can be obtained using the new method; moreover, it can also reduce the calculation time. (Longer abstract available)

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1177393 DIPPING BED -- GEOPHYSICS
INCORPORATING GEOLOGIC INFORMATION INTO REFLECTION TOMOGRAPHY WITH A DIP-ORIENTED GAUSSIAN FILTER; C.Zhou (Petroleum Geo-Services).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-02; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Reflection tomography is non-unique and a regularization term is usually added into its objective function as an additional constraint. The anisotropic Gaussian filter has been successfully employed as such a regularization operator. By orienting the smoothing axes along the local dip directions, the new Gaussian filter helps reflection tomography produce models that conform to the reflector structures. For efficiency purpose, the 3D Gaussian filter is factorized into three 1D filters in a non-orthogonal coordinate system. The dip oriented Gaussian filter also provides the freedom for applying spatially variable smoothing. (Longer abstract available)

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1177394 DIRECT HYDROCARBON INDICTR -- GEOPHYSICS
Q ATTENUATION AND TIME FREQUENCY DECOMPOSITION OF SEISMIC DATA FOR DIRECT HYDROCARBON DETECTION [ATENUACION Q Y METODOS DE DESCOMPOSICION TIEMPO-FRECUENCIA PARA LA DETECCION DIRECTA DE HIDROCARBUROS EN DATOS SISMICOS]; P.Ayala, J.Sierra and D.El Montoya (Venezuela Central Univ; IGS Services & Consulting).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

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1177395 EASTERN VENEZUELA BASIN -- GEOPHYSICS
MAGNETIC EVIDENCE OF POSSIBLE UNEXPLORED HYDROCARBON ACCUMULATION IN DRY WELL SAMPLES, SHALLOW AND OLD, IN THE EASTERN BASIN OF VENEZUELA [EVIDENCIAS MAGNETICAS DE POSIBLES ACUMULACIONES DE HIDROCARBUROS NO EXPLORADAS, EN MUESTRAS DE POZOS SECOS, SOMEROS Y VIEJOS, EN LA CUENCA ORIENTAL DE VENEZUELA]; O.Guzman, V.Costanzo, M.Aldana and M.Diaz (Simon Bolivar Univ; Inst Venezuela Invest Cien).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

Hydrocarbon exploration and production operations in the Eastern Basin of Venezuela have been active since the late nineteenth century and early twentieth century to the present. In this paper we use an unconventional methodology of hydrocarbon re-exploration, which consists of detecting evidence of diagenetic magnetic minerals in shallow layers possibly caused by the presence of hydrocarbon accumulations in levels that lie underneath. Using data from dry wells, shallow and old, analyses of rock magnetism, electron paramagnetic resonance (EPR), extractable organic matter (EOM), X-ray diffraction (XRD) and scanning electron microscopy (SEM) of the first 4,000 feet of drill cuttings were performed.

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1177396 FOUR DIMENSIONAL SEISMIC -- GEOPHYSICS
ROCK PHYSICS FOR 4D MODELING OF HEAVY OIL SANDS IN PETROMONAGAS FIELD; J.M.Florez-Nino and V.Vega (BP America Inc; BP Andean).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-388; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 6 pp)

This paper presents a rock physics analysis carried out to integrate well-log and seismic data for reservoir characterization and forward modeling of 4D seismic response in heavy oil sands. We also evaluate the seismic response related to thermal recovery. This integration requires a careful analysis to account for (1) frequency-dependent P-wave velocity dispersion, (2) highly viscous fluid, (3) temperature effects on fluid properties, and (4) pressure effects on rock properties. Our results show that P-wave and shear-wave velocity variation as a function of temperature are the dominant factors to consider while integrating well-log and seismic data in sands of the Morichal members of the Oficina Formation. At reservoir temperatures, shear-wave velocity of heavy oil is relatively low and its effect is small. The excellent match between measured and predicted shear-wave velocity at reservoir conditions validate the final results. Morichal sands are very sensitive to changes in fluid saturation and fluid properties, however seismic monitoring of changes in heavy oil and brine saturations alone would be too difficult since both fluids have similar elastic properties at reservoir temperatures. We conclude that changes in elastic properties of Morichal sands derived from steam injection would be detectable for temperatures above 150°C.

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1177397 FOUR DIMENSIONAL SEISMIC -- GEOPHYSICS
4D REPEATABILITY OF RESERVOIR ILLUMINATION: QUALITY CONTROL AND SUPPORT TO RE-SHOOT DECISION; J.Svay, N.Bousquie, T.Mensch and A.Sedova (Cie Generale Geophysique).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 1.8; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

Repeatability of reservoir illumination is evaluated to provide support to in-fill and re-shoot decisions during 4D marine seismic acquisitions. New and complementary repeatability indicators are derived at gradual discrimination scales, ranging from shots to navigation lines up to the full acquisition scale. Quality control of seismic repeatability is carried on the shifts in reflection-points between base and monitor datasets. Corresponding support to re-shoot decisions is provided onboard from a dedicated shot indicator. It is defined as the similarity between time-lapse illumination of individual shots or navigation lines, evaluated from an adapted image registration metric. This indicator provides an easy tool to identify and rank potential re-shoot options. Following acquisition, monitor data is delivered that has been validated in terms of seismic illumination repeatability with respect to base. Matching base and monitor data subsets are also delivered for processing, which are selected from 4D binning in common reflection point gathers to best preserve the reflective responses from the reservoir. (Longer abstract available)

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1177398 GAUSSIAN BEAM METHOD -- GEOPHYSICS
APPLICATION FOR IMAGING IN 2D GAUSSIAN BEAM MIGRATION OF FOLDED BELTS [APLICACION DE LA MIGRACION POR HACES GAUSSIANOS 2D EN IMAGENES DE CINTURONES PLEGADOS]; C.Agon, F.Vivas and W.Agudelo (Santander Industrial Univ; Pamplona Univ; Ecopetrol).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 8 pp; In Spanish)

Subsurface complex geological structures, such as those generated in the piedmont plains, require prestack depth migration with the purpose of building structural images for the exploration of oil fields. However, the reliability of the images obtained depends, among other things, on the migration process implemented, among which the most widely used is the Kirchhoff migration. In complex regions such as the piedmont plains, the velocity models have rapid variations in both the vertical and horizontal speed, which could generate multiple arrivals. These phenomena are considered flaws in the beam theory and influence Kirchhoff migration adversely. An alternative that reduces these problems is Gaussian beam migration, which we have implemented and adapted in this work. In preliminary testing of the implemented prestack Gaussian beam migration program, we used synthetic Marmousi data, which presents great structural complexity and is of manageable size in terms of computing time. The results show an important improvement when compared with conventional Kirchhoff migration.

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1177399 GORGON GAS FIELD -- GEOPHYSICS
VOLUME-BASED MODELING: AUTOMATED CONSTRUCTION OF COMPLEX STRUCTURAL MODELS; L.Souche, F.Lepage and G.Iskenova (Schlumberger).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-06; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

A new technology for creating, reliably and automatically, structural models from interpretation data is presented. The main idea behind this technique is to model directly volumes (the geological layers) rather than surfaces (horizons that are bounding these layers). In order to enforce the geological consistency of the created models another key element is built into this technology: it guarantees that the variations of dip and thickness of the created geological layers are minimized, while all seismic and well data are properly honored. The proposed method enables the construction of very complex structural models, independently from the geological settings, and even when such models have to be built from sparse or noisy data. The full automation of the model construction process allows to rapidly update the model, to efficiently identify the most uncertain parameters, to understand their impact, and to iteratively optimize the model until it fits all available data. To demonstrate the advantages of this technique the construction of a complex exploration-scale structural model of a prospect located offshore Australia is detailed. (Longer abstract available)

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1177400 HARMONIC DISTORTION -- GEOPHYSICS
FROM NOISE TO SIGNAL: HARNESSING HARMONICS FOR IMAGING; C.B.Harrison, G.F.Margrave, M.Lamoureux, A.Siewert, A.Barrett and H.Isaac (Calgary Univ; Norwegian State Oil Co).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 4.2; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

Harmonics within vibrator data have long been seen as unwanted noise distortions to be attenuated from seismic data. Indeed, methods have been developed to eliminate harmonic contamination in the acquisition and processing phases of seismic exploration as well as from the vibrator mechanical and hydraulic system itself. In this paper, however, we propose that these harmonics and their associated higher frequency content can be harnessed for seismic imaging of shallow thin reflectors. Through high sampling of the wave field, harmonic decomposition of recorded sweeps through the use of the Gabor transform, and surprisingly simple processing, we show that thin shallow reflectors are brought into focus from the blur of the near surface. (Longer abstract available)

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1177401 HUILA -- GEOPHYSICS
A CASE STUDY ON THE CHALLENGES OVERCOME IN THE MERGE OF SEVEN ONSHORE 3-D SURVEYS OF VARYING ACQUISITIONS IN HUILA DEPARTMENT, COLOMBIA; H.Maldonado, T.Brooks, L.M.Saavedra, G.Gutierez, A.Saavedra and P.Watterson (WesternGeco/Schlumberger; Ecopetrol).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 3 pp; Abstract only)

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1177402 HUSSAR GAS FIELD -- GEOPHYSICS
MODEL-BASED INVERSION OF LOW FREQUENCY SEISMIC DATA; P.Gavotti, D.C.Lawton, G.Margrave and J.H.Isaac (Calgary Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-16; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

The Hussar experiment was carried out in central Alberta, Canada, in September 2011 with the purpose of acquiring low-frequency seismic data to be used in inversion methods. Three wells located close to the seismic line and a dynamite-source dataset, acquired with three-component 10 Hz geophones, were used for a post-stack inversion test using commercial software. Several low-frequency cut-off filters applied to the data were tested with the 3-5 Hz model being selected as the optimum. The resultant impedance reflects lateral changes that were not present in the initial model and therefore are derived from the seismic reflections. Impedance changes in the target zone show the general trend and relative variations, which would allow changes in the reservoir to be monitored as variations in the rock properties occur. A final inversion was performed to simulate traditional approaches when the low-frequency component is absent in the seismic data. Filtered seismic-data (10-15-60-85 Hz) and an initial model with a 10-15 Hz cut-off were used for this test. The results at the well locations show a good match but the lateral variation and character of the events resemble more the initial model character. (Longer abstract available)

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1177403 HYDRATE RIDGE -- GEOPHYSICS
DRIVERS OF FOCUSED FLUID FLOW AND METHANE SEEPAGE AT SOUTH HYDRATE RIDGE, OFFSHORE OREGON, USA; G.J.Crutchley, C.Berndt, S.Geiger, D.Klaeschen, C.Papenberg, I.Klaucke, M.J.Hornbach, N.L.B.Bangs and C.Maier (GEOMAR).. GEOLOGY v.41, no.5, pp.551-554, May 2013. (ISSN 1943-2682)

Methane seepage at south Hydrate Ridge (offshore Oregon), one of the best-studied examples of gas venting through gas hydrates, is the seafloor expression of a vigorous fluid flow system at depth. The seeps host chemosynthetic ecosystems and release significant amounts of carbon into the ocean. With new three-dimensional seismic data, we image strata and structures beneath the ridge in unprecedented detail to determine the geological processes controlling the style of focused fluid flow. Numerical fluid flow simulations reveal the influence of free gas within a stratigraphic unit known as Horizon A, beneath the base of gas hydrate stability (BGHS). Free gas within Horizon A increases the total mobility of the composite water-gas fluid, resulting in high fluid flux that accumulates at the intersection between Horizon A and the BGHS. This intersection controls the development of fluid overpressure at the BGHS, and together with a well-defined network of faults, reveals the link between the gas hydrate system at depth and methane seepage at the surface.

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1177404 IMAGE ENHANCEMENT -- GEOPHYSICS
THE APPLICATION OF ROBUST PRINCIPAL COMPONENT ANALYSIS FOR WEAK SEISMIC SIGNAL ENHANCEMENT; X.Gao, W.K.Lu, F.Y.Li and X.D.Jiang (Tsinghua Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-06-05; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

For weak seismic signal enhancement, a new application of a signal decomposition method, known as robust principal component analysis (RPCA) is introduced. The motivation of this work stems from the observation that the interested weak seismic signals are always interfered by strong ones besides noises, causing the loss of some detailed seismic information. Principal component analysis (PCA), based on second-order statistics, however, requires the data to be white and Gaussian, which seismic data may not satisfy. Being an extension of traditional PCA, RPCA utilizes L1-norm instead as the error function and the iterative algorithm obtains the optimal projections one by one with a greedy strategy. The synthetic data experiment indicates that RPCA outperforms PCA in seismic data processing as RPCA forms less artificial horizontal events. Moreover, an example of a 3-D field data is considered on which there are two wells close to each other. The seismic events are continuous across the wells, whereas the oil and gas production of the wells is distinct. The results demonstrate that RPCA is effective for weak seismic signal enhancement and helpful to improve the reliability of oil and gas detection. (Longer abstract available)

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1177405 IMAGE ENHANCEMENT -- GEOPHYSICS
ANGLE DOMAIN ILLUMINATION ANALYSIS ALONG A TARGET HORIZON; J.Mao, S.Suh and B.Wang (Transportadora Gas Sur).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P1.6; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

We develop an efficient scheme of illumination analysis along a target horizon. With this scheme, we can calculate the directional illumination (DI) from the sources and the acquisition dip response (ADR) along a target horizon in very short turnaround time. Therefore, it can be a useful tool to study the influence of the model (e.g., salt body) and the acquisition system (e.g., shot distribution and aperture size). The result can be a guide for acquisition design and model building. With the illumination map along the target horizon, it also is helpful for the interpretation in areas where the image amplitudes are not reliable. Here, we use the wave-equation based migration and local plane wave decomposition method to get the frequency domain illumination in the local angle domain. We precalculated and saved the angle domain Green’s function along the target horizon. These Green’s functions are reusable so that we can save a lot of computational and I/O cost. We use the 3D SEG/EAGE salt model and a real model example to demonstrate the validity of our method. (Longer abstract available)

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1177406 IMAGING -- GEOPHYSICS
SIMULTANEOUS JOINT INVERSION OF ELECTROMAGNETIC, GRAVITY AND SEISMIC DATA FOR THRUST BELT AND SUB-BASALT IMAGING; M.Virgilio, S.Hallinan and M.Mantovani (WesternGeco).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 2 pp; Abstract only)

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1177407 INNER MONGOLIA -- GEOPHYSICS
MODAL ELASTIC INVERSION; F.Ernst (Shell Int Explor & Prod BV).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-01-01; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Recent years have seen the emergence of full-waveform inversion (FWI) approaches for generating detailed velocity models for imaging. For land seismic data, especially in areas of complex near-surface geology, a proper near-surface model is crucial for imaging. These two observations naturally lead to the question whether FWI approaches can also be used for near-surface model building purposes. As most wave propagation effects in the near surface are inherently elastic, this requires elastic FWI. The combination of small scales involved, and typical large sizes of modern land surveys, may make an approach based on finite differences or finite elements computationally very demanding. We propose a fast approximation to elastic FWI, modal elastic inversion, where wave propagation in the near surface is modeled by means of a (small) number of horizontally propagating waves: ground roll, its higher modes and guided waves. These waves comprise the vast majority of energy in land data and are sensitive to near-surface velocities. We apply modal elastic inversion to a 2D test line and show that both the shallow P-wave and S-wave velocity models can be recovered well. (Longer abstract available)

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1177408 ITALY -- GEOPHYSICS
NON-STRETCH FOURTH-ORDER NMO THROUGH ITERATIVE PARTIAL CORRECTIONS AND DECONVOLUTION; E.Biondi, E.Stucchi and A.Mazzotti (Pisa Univ; Milan Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-05; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Source to receiver distances employed in seismic data acquisition have been steadily increasing and it is now common to work with data acquired with more than 10 km of offset. Sub-basalt exploration and seismic undershooting are just two applications where long-offset reflections are valuable. However, such reflections are often subjected to muting to avoid NMO stretch artifacts, thus causing a loss of valuable information. It is therefore of interest to find ways to avoid the distortions caused by the standard NMO correction and to retrieve these portions of the recorded wavefield for a better use in the processing. To this end, we develop a non-stretch NMO correction based on a wavelet estimation and on an iterative procedure of partial NMO correction and deconvolution. To drive the corrections, we make use of fourth-order traveltime curves, that further extend the offset range of usable reflections. Then we estimate time and space variant wavelets, by means of SVD along the sought traveltimes, that become the desired output for the deconvolution trying to retrieve the original shapes of the partially stretched wavelets. We test our method on synthetic data and we perform a blind test on real data simulating an undershooting acquisition. (Longer abstract available)

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1177409 LABRADOR SHELF -- GEOPHYSICS
PRELIMINARY SEISMIC INTERPRETATION OF THE LABRADOR SLOPE AND DEEP WATER, OFFSHORE NEWFOUNDLAND AND LABRADOR, CANADA; D.E.L.Cameron, I.A.Atkinson, J.E.Carter and R.J.Wright (Nalcor Energy Oil & Gas).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-11; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

The Labrador Sea is one of the largest under-explored areas along the eastern Canadian Margin. Prior to 2011, exploration of this region had focused on the continental shelf with numerous vintage 2D seismic surveys executed over the past 50 years and 30 wells drilled during the 1970s and 1980s. Most of the wells drilled in the Saglek and Hopedale basins were targeting shelfal structural traps. The acquisition of the new 2011-2012 Labrador Sea long offset regional 2D seismic data (22,000 km) has resulted in significant uplift in image quality and has provided new data for a vast area of the slope and deep-water that was previously un-imaged. The enhanced image quality is leading to identification of geological features and potential leads in regions never before considered prospective. (Longer abstract available)

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1177410 LANCASHIRE AREA -- GEOPHYSICS
FELT INDUCED SEISMICITY ASSOCIATED WITH SHALE GAS HYDRAULIC STIMULATION IN LANCASHIRE, UK; P.Styles, L.Eisner and H.Clarke (Keele Univ; Seismik; Caudrilla Resources).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-01-10; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Shale gas exploration in the UK began in 2010 with five stages of hydraulic fracturing of the Bowland Shale. Hydofracturing in Cuadrilla Preese Hall-1 used five couplets of mini- and main-fracs with ca 10,000 bbl per stage, hydraulically isolated from each other during injection. An earthquake of 2.3 ML, a 1.5 ML and a series of smaller events occurred from March through May 2011, when work ceased for detailed analysis. Seismicity commenced after stages 2, 4 and 5; the largest occurring 10 hours after stage-2 shutin. Seismological analysis using observations from seismometers emplaced after the 2.3 event and regional data detected 55 seismic events from ML-2 to ML2, with 14 between ML0.2 to ML2.3, indicating a low B-value of 0.8 (± 0.3) suggesting an unusually small number of weaker events. The timing was highly correlated with injection with the largest events (stages 2 and 4) preceded by weaker events (ML0 and ML1.4) all located near the Preese Hall well, ca 500 meters south of the injection interval. The observed seismicity is almost certainly induced by hydraulic fracturing of the Preese Hall well. Future mitigation based on microseismic monitoring during hydrofracturing should reduce the likelihood of inducing further felt earthquakes. (Longer abstract available)

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1177411 LAU BASIN -- GEOPHYSICS
DETERMINING THE ORIENTATION OF OCEAN-BOTTOM SEISMOMETERS USING VIRTUAL SOURCES; Y.Zha, S.C.Webb and W.Menke (Lamont Doherty Earth Obser).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 4.6; Available at http://www.seg.org as of 10/29/2013; 6 pp; Expanded abstract)

We present a new method for determining the horizontal orientation of ocean bottom seismometers (OBS) using the polarization of virtual Rayleigh waves retrieved from ambient noise cross-correlation. We demonstrate that the sensor orientation angle can be estimated through maximizing the correlation between the radial-vertical component and the Hilbert transformed vertical-vertical component of the empirical Green's tensor. We apply this method to L-SCAN OBS array data collected from the Eastern Lau Spreading Center, and illustrate its robustness by comparing the obtained orientations with results from a conventional method utilizing teleseismic P and Rayleigh wave polarizations. The advantage of the ambient noise method lies in the large number of inter-station ray paths and excellent azimuthal coverage for large OBS arrays. Potential applications include continuous monitoring of sensor orientations during time-lapse survays. (Longer abstract available)

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1177412 LIBYA -- GEOPHYSICS
THE IMPACT OF ISS(R) BLENDING AND SOURCE SEPARATION ON REFRACTION STATICS MODELING; T.Manning and K.Ahmad (BP).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 3.7; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

A reliable statics model is often a key requirement in land seismic imaging. This model removes the effects of near surface velocity variations that can severely distort subsurface structures. One method to calculate these statics is based on picking first-break refraction energy on seismic records. We assess the ability to pick accurate first-breaks on data impacted by the interference of simultaneous sources, known as blending, associated with BP’s ISS® seismic acquisition technology. The results of two case studies from the 2010 BP Libya seismic program are presented. We conclude that source blending from the ISS technique does not adversely impact refraction statics modeling. Randomized sweep times and varied source separations lead to low amounts of blending across the refractor offset range, and so increased production efficiency can be achieved while maintaining robust refraction picking. In areas of higher blending, the application of source separation techniques, such as the SSI(TM) algorithm, enhances first-break quality and improves the refraction statics solution. (Longer abstract available)

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1177413 LIWAN FIELD -- GEOPHYSICS
FIRST VARIABLE-DEPTH STREAMER SEISMIC SURVEY OFFSHORE CHINA; Z.Zhang, S.Wang, D.Li, R.Wang, J.Sun, Y.Xiao, Y.Guo and C.Judd (China Nat Offshor Oil Corp; Cie Generale Geophysique).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P2.4; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

In this paper, we present the first variable-depth streamer seismic survey offshore China. The objective of the broadband survey is to obtain high resolution and high fidelity seismic data in order to better assess the exploration potential in the region. The acquisition and imaging were done on two separated blocks. The initial result is encouraging, and shows the benefit of broadband data to interpretation. (Longer abstract available)

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1177414 LLANOS BASIN -- GEOPHYSICS
DEPTH CONVERSION IN THE LLANOS BASIN: WORKFLOW TO REDUCE FAULT SHADOW EFFECT; A.Chermak, G.V.Fajardo and J.C.Ramon (Emerald Energy plc).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 12 pp)

Depth conversion and imaging in the Llanos basin have been crucial steps in prospect definition and field development. The fault shadow effect, caused principally by the low velocity Leon-C1 zone, creates false anticlinal structure in time whereas the real structure in depth tends to be a pure monocline dipping away from a bounding normal fault. Since depth conversion is a critical issue in exploration and development of subtle low-relief structures in the Llanos, a refined methodology is needed for reliable depth estimation. This paper describes the evolution of the depth conversion methodology used in the Campo Rico Association Contract, where Emerald has 3 producing fields. In this study several depth conversion methods were applied to the Vigia Field, the field exhibiting the most prominent fault shadow effect. Initially, a single time-depth function was used to convert maps of the reservoir horizon. No account was taken of regional velocity gradients or of local variations due to changes in layer thicknesses, in particular, not of the Leon-C1 layer. Subsequently, direct mapping of average velocity pseudo-velocities based on seismic times and well depths was evaluated. This addressed some of the regional velocity variation but took no account of structural variations between wells or of the Leon-C1 layer.

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1177415 LLANOS BASIN -- GEOPHYSICS
AERO GRAVIMETRIC AND MAGNETOMETRIC MEASUREMENTS IN THE LLANOS ORIENTALES OF COLOMBIA [MEDICIONES AEROGRAVIMETRICAS Y MAGNETOMETRICAS EN LOS LLANOS ORIENTALES DE COLOMBIA]; V.Graterol and C.A.Rey (Carson Aerogravity; Agencia Nac Hidrocarburos).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

In 2008, Carson Aerogravity acquired for the National Hydrocarbons Agency 21,750 km of aerogravimetry and aeromagnetometry in the northern part of the Llanos Orientales which is able to determine trends generated by possible regional faults and other elements of interest in hydrocarbon exploration.

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1177416 LLANOS BASIN -- GEOPHYSICS
REGIONAL ROCK PHYSICS EVALUATION OF OLIGOCENE AND MIOCENE STRATA, EASTERN LLANOS BASIN (COLOMBIA): IMPLICATIONS FOR EXPLORATION; M.A.Gutierrez.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

This study presents the rock physics characterization of Oligocene and Miocene siliciclastic successions in the foreland sub-Andean Llanos Basin. One of the important challenges in the eastern Llanos basin is to validate the economic potential of Oligocene-Miocene rocks using seismic amplitudes. This validation requires the implementation of practical interpretation techniques for calibrating rock properties to seismic data. The elastic properties of the Oligocene and Miocene rocks in the eastern Llanos Basin are controlled by variations in lithology and porosity. For clean uncemented sands (C1, C3, C5, C7) with large enough porosities, hydrocarbon effect modeling suggests that reservoir water and hydrocarbons can not be distinguished using seismic properties, due to the relatively low compressibility of the oil. In the eastern Llanos basin, acoustic impedance (AI) and Vp-Vs ratio are good porosity and lithology discriminators. Specifically, high AI and low Vp-Vs correspond to silty mudrocks (Guayabo, C4-C8) and low-porosity sandstones, while very low AI and very high Vp-Vs indicate clay-rich mudrocks (Leon, C2, and C8 West). Intermediate AI and low Vp-Vs are associated with high-porosity sandstones (C1, C3, and C5). Over the depth-range expected for the Carbonera and Leon Formations, weak AVO effects are expected. (Original not available from T.U.)

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1177417 LLANOS ORIENTALES -- GEOPHYSICS
NEW INSIGHTS INTO THE PIEDEMONTE LICENSE TRIANGLE ZONE IN THE LLANOS FOOTHILLS, COLOMBIA; R.Linares P., H.H.Aguirre A., J.C.Alzate D., P.A.Galindo A. (BP Exploration Colombia).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 9 pp)

The objective of this work is to give new insights into the geometry and kinematics of the tectonic wedge of the Piedemonte License. The interpretation presented herein involved and integrated the lately acquired surface and subsurface data: 470 sq km of pre-stack depth migrated (PSDM) 3D seismic, geological information and production data from 11 wells and detailed surface geology. The main reservoirs, Mirador, Barco and Guadalupe formations, are involved into the hanging wall of the thrust sheets of the intercutaneous wedge. The structural analysis is based on backward modeling (cross-section restoration) and on forward modeling of the area using the fault parallel flow algorithm. The forward modeling comprises a model divided into 15 stages of deformation, taking into account the deformation produced since the Oligocene. The main structural features are the Monterralo, El Morro, Florena, Dele, Pauto and Volcanera anticlines, and the Nunchia syncline. The anticlines of the wedge could be divided into two groups. One is characterized by greater amplitude and is more symmetrical. The second one is characterized by slightly more elongated back limbs and shorter front limbs.

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1177418 LLANOS ORIENTALES -- GEOPHYSICS
OPTIMIZING KIRCHHOFF PRE-STACK TIME MIGRATION FOR 3D SEISMIC DATA IN THE LLANOS ORIENTALES [OPTIMIZACION DE MIGRACION PRE-APILADO EN TIEMPO TIPO KIRCHHOFF PARA DATOS SISMICOS 3D EN LOS LLANOS ORIENTALES]; M.I.Prieto and J.M.Jaramillo (Colombia Nacional Univ; GMAS Ltda).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 8 pp; In Spanish)

The pre-stack time migration aims to correct the zero-offset approximation. The lithological characteristics of the sequences present in the study area and the inhomogeneous distribution of sedimentary deposits induce anisotropy in the medium. Moreover, the alternation of Tertiary units with contrasting lithologies, one composed of interbedded sandstones and mudstones and the overlying formed mostly by mudstones, induces curvature of the beam path. Additionally, natural obstacles and infrastructure induce deviations from the regular grid acquisition which is originally designed. Processing algorithms that take into account the anisotropy of the medium, the use of a curved beam path, and spatial distribution of traces by Voronoi polygons are designed to correct some of the false assumptions under which the conventional pre-stack time migration work. The application of these three algorithms is evaluated on a 3D seismic data volume acquired in the Llanos Orientales basin, comparing the interpretation of the original cube (post-stack migration) with migrations obtained as a result of implementing these algorithms.

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1177419 MAGDALENA FAN -- GEOPHYSICS
CONCEPTUAL STRATIGRAPHIC CHARACTERIZATION OF THE OFFSHORE SYSTEM OF THE PALEO-MAGDALENA FAN, COLOMBIAN CARIBBEAN [CARACTERIZACION ESTRATIGRAFICA CONCEPTUAL DEL SISTEMA COSTA-AFUERA DEL PALEO-ABANICO DEL MAGDALENA, CARIBE COLOMBIANO]; H.Antolinez, J.C.Mosquera, M.A.Toledo and L.M.Duarte (Petroleo Brasileiro SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 8 pp; In Spanish)

The offshore paleo-Magdalena fan system in the Colombian Caribbean is an area of study currently poorly characterized. Two-dimensional seismic data (2D) indicate multiple phases of erosion and deposition in Neogene sediments where deepwater slope channel systems are identified developed in a thick layer of sediment that reaches more than 3 kilometers thick. The 2D seismic allows identification of architectural configurations of erosive, erosive/aggradational and aggradational systems in deepwater channels. Comparing the seismic response with similar systems elsewhere, we infer the characteristics of sediments and facies succession within the channels. Channel formation begins with relative sea level regression and the introduction of thick sediment at the edge of the platform. Subsequent filling includes debris flows, slump deposits and landslides that evolve amalgamated channel packets decreasing in net-to-gross from base to top. The abandoned channel facies are composed of fine sediments reflecting pelagic sedimentation. This pattern of incision and filling is repeated in a series of channel formation cycles.

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1177420 MAGDALENA FAN -- GEOPHYSICS
THE MAGDALENA FAN THROUGH THE LENS OF 3D SEISMIC [EL ABANICO DEL MAGDALENA A TRAVES DEL LENTE DE LA SISMICA 3D]; C.Ruiz-Graham, J.Cotton, M.Martinez, A.Ortiz, C.Guerrero, V.Ramirez, M.Toledo, H.Antolinez and J.Mosquera (BP Colombia).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

[For information only - meeting paper abstract]

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1177421 MAGDALENA VALLEY -- GEOPHYSICS
STRUCTURAL INVERSION IN THE CAGUI SECTOR, NORTHERN-CENTRAL PART OF THE MIDDLE MAGDALENA VALLEY BASIN, COLOMBIA; F.Garavito (Ecopetrol SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp)

The area of study is located in the northern sector of the Middle Magdalena Valley Basin in the north central part of Colombia. The main aim of this project is to undertake a structural restoration of the present day geometry of the study area. The interpretation focused mainly on a 3D seismic volume. The main structural feature of the area is the Cagui Fault and its associated half graben, which is interpreted as a Jurassic age listric normal fault that was inverted to its present configuration as a reverse fault. The main evidence for this includes (1) reflectors diverging toward the Cagui Fault, indicating activity as a normal fault during the Jurassic, (2) the syn-rift package located in the hanging wall of the Cagui Fault, (3) the structure's typical minor faulting related to tectonic inversion such as footwall and hanging wall shortcuts, back thrusts, and an anticline fold on the hanging wall. The extensional phase corresponds to Jurassic rifting proposed for the central part of Colombia. The Maastrichtian-Paleocene compressional phase is related to subduction located along the western border of the South American continent.

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1177422 MAGDALENA VALLEY -- GEOPHYSICS
THE &quote;TRANSANDEAN REGIONAL LINE&quote; GEOPHYSICAL PROJECT IN NORTHERN SOUTH AMERICA [PROYECTO GEOFISICO &quote;LINEA REGIONAL TRANSANDINA&quote; EN EL NORTE DE SURAMERICA]; E.Guerrero E., L.Diaz, K.P.Castano and C.A.Rey.. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp; In Spanish)

The National Hydrocarbons Agency (ANH), under the project &quote;Trans Line 4A,&quote; contracted acquisition and interpretation of seismic data, gravimetric magnetometer and geochemical along a line crossing the Sinu - San Jacinto, Lower Magdalena Valley, Middle Valley Magdalena sedimentary basins and the Eastern Cordillera located in northern Colombia.

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1177423 MAGDALENA VALLEY -- GEOPHYSICS
GEOLOGIC MODEL OF THE MATURE FIELDS OF LISAMA, TESORO, NUTRIA, AND PEROLES, MIDDLE MAGDALENA VALLEY, COLOMBIA [MODELO GEOLOGICO DE LOS CAMPOS MADUROS DE LISAMA, TESORO, NUTRIA Y PEROLES, VALLE MEDIO DEL MAGDALENA, COLOMBIA]; J.L.Rubiano Ortiz, J.R.Sandoval Ruiz and N.A.Gamba Ruiz (Ecopetrol SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 7 pp; In Spanish)

Geological models of the Lisama, Tesoro, Nutria, and Peroles mature fields are updated and reassessed. In this paper, 510 km of 2D seismic lines are interpreted and correlated with well data. The Lisama Field is an asymmetric anticlinal structure with a steeper west flank and faulted. It has an axis orientation of N10°E and is doubly plunging. The Tesoro Field is a symmetrical anticlinal structure, doubly plunging with its axis oriented N5°E. To the east is the symmetrical Nutria anticline with moderately dipping flanks and a plunge to the northeast. In the southeast part of the area is the Peroles field which is a monoclinic structure with a dipping northwest flank. The structural style is interpreted as a fault propagation fold.

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1177424 MAGDALENA VALLEY -- GEOPHYSICS
SEISMIC AVA AS AN EXPLORATION TOOL IN THE MAGDALENA BASIN, OFFSHORE COLOMBIA; T.Fasnacht and B.R.Frost.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

It is always exciting to analyze high-quality seismic data within an unexplored basin because of the potential discovery of vast resources. The provenance of the reservoirs within the deepwater Magdalena Basin is siliciclastics and igneous rocks from over 1,000 km away. The Magdalena River and its associated tributaries drain a sediment resource area of >400,000 sq km. The depositional environment for these sediments is expected to be deepwater channel and fan complexes with present water depths ranging from about 550 to over 4,000 m. Seismic AVO or AVA (amplitude vs. offset or angle) has historically been especially effective when targeting relatively young, high-porosity sandstones. Since the exploration targets in this area are expected to be Miocene sands, AVA is a primary exploration tool, albeit uncalibrated. AVA analysis for Block 2 (ca 12,000 sq km) was based on a very sparse grid of recent regional 2D lines (three dip and three strike) totaling about 570 linear kilometers. (Original not available from T.U.)

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1177425 MAGDALENA VALLEY -- GEOPHYSICS
3D SEISMIC PROGRAM OFFSHORE MAGDALENA: LESSONS LEARNED [PROGRAMA SISMICO MAGDALENA OFFSHORE 3D: LECCIONES APRENDIDAS]; J.Checa, R.Ramirez and E.Toro (BP; Ecopetrol; Petroleo Brasileiro SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

[For information only - meeting paper abstract]

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1177426 MAGDALENA VALLEY -- GEOPHYSICS
LOW FREQUENCY ABSORPTION AS A HYDROCARBON INDICATOR [ABSORCION A BAJAS FRECUENCIAS COMO INDICADOR DE HIDROCARBUROS]; E.Medina and L.Montes (Colombia Nacional Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

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1177427 MAGDALENA VALLEY -- GEOPHYSICS
FRACTURE ESTIMATION USING A P-WAVE AZIMUTHAL ATTRIBUTE ANALYSIS IN THE CAGUI AREA; J.Monsegny and C.Piedrahita (Ecopetrol-ICP).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

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1177428 MAGDALENA VALLEY -- GEOPHYSICS
A SEISMIC 3C3D/4D EXPERIMENT IN A PRODUCTION FIELD IN THE MIDDLE MAGDALENA VALLEY; W.Agudelo, S.Guevara, G.Ojeda and G.Alvarez (Ecopetrol SA; InforPetrol Ltda).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 2 pp; Abstract only)

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1177429 MAGDALENA VALLEY -- GEOPHYSICS
RESERVOIR PRESSURE AND MOBILITY MONITORING IN BROWN FIELDS IN THE MIDDLE MAGDALENA VALLEY USING MODERN WIRELINE FORMATION TESTER TECHNOLOGY; X.Guerrero, N.A.Aarseth and J.Peralta (Schlumberger).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

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1177430 MALLIK AREA -- GEOPHYSICS
CONTINUOUS MAPPING OF P-WAVE VELOCITY DISPERSION: A USEFUL TOOL FOR RESERVOIR CHARACTERIZATION; L.F.Sun, A.Campbell and B.Milkereit (China Univ Petroleum; Toronto Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-12; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

For reservoir rocks, P-wave velocity dispersion may provide a potential link to rock physical properties. This requires continuous measurement of P-wave velocity in a broad frequency band to determine the critical frequency of the attenuation mechanism. In this study, we measure P-wave velocity dispersion continuously in sonic frequency range using broadband full-waveform multi-channel sonic logging data with the beam-forming and cross-correlation techniques. Results of the field data from 5L-38 Mallik gas hydrate research well have demonstrated the robustness of this method. The profile of P-wave velocity dispersion matches very well with geological settings. The gas hydrate zones show very strong P-wave velocity dispersion and a pronounced critical frequency around 15 kHz; weakly-laminated sediments also have strong P-wave velocity dispersion with critical frequency lower than 5 kHz; P-wave velocity dispersion in consolidated sediments is mild and gradual. In addition, the total magnitude of P-wave velocity dispersion is positively correlated to resistivity and gas hydrate saturation. Therefore, continuous P-wave velocity dispersion mapping can be a promising tool for reservoir characterization. (Longer abstract available)

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1177431 MARAMURES BASIN -- GEOPHYSICS
INTEGRATING RESISTIVITY AND SEISMIC SURVEYS TO IDENTIFY SHALLOW HYDROCARBON RESERVOIRS; C.Badulescu, C.Iacob, M.Paduret, L.Tonita, N.Moga, C.Dutu and M.Cohut (Prospectiuni SA).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-01-07; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Direct current resistivity survey is one of the oldest geophysical methods used for prospecting natural resources. When integrated in interpretation with seismic investigations, it usually offers high quality results, even in difficult investigation settings and complicated geology. The purpose of the study was to enhance seismic interpretation of the near-surface geology using high resolution direct current resistivity surveys, in order to confirm structures of potential shallow hydrocarbon reservoirs. Resistivity surveys have been executed in an area in Romania where seismic data gave poor results for the near surface geology delineation. Either by constraining inversion or interpretation, seismic and resistivity surveys proved to be an efficient couple of geophysical methods for delineating near-surface geology even in high noise and complicated geological settings. Geological models could be built for the studied area and structures with potential for hosting hydrocarbons have been identified. (Longer abstract available)

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1177432 MARINE EXPLORATION -- GEOPHYSICS
SYSTEM AND METHOD FOR USING AN IMPACT-ACTIVATED DEVICE FOR REPELLING SHARKS FROM MARINE GEOPHYSICAL SURVEY EQUIPMENT; B.W.Harrick and A.Stenzel, asrs. (PGS Geophysical AS).. U.S. 2013/0,094,332A1, p. 4/18/2013, f. 10/14/2011 (Appl. 273,707) (A01M-0029/22). (13 pp)

Disclosed are methods and systems for using an impact-activated device for repelling sharks from marine geophysical survey equipment. An embodiment discloses a marine geophysical survey system, comprising (1) marine geophysical survey equipment configured to be located in a body of water when in operation; and (2) an impact-activated device coupled to the marine geophysical equipment, wherein the impact-activated device comprises a circuit configured to release a shark repellent in response to a pre-determined impact on the impact-activated device.

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1177433 MARINE EXPLORATION -- GEOPHYSICS
SYSTEMS AND METHODS FOR PRODUCING DIRECTED SEISMIC WAVES IN WATER; G.E.Parkes and S.Hegna, asrs. (PGS Geophysical AS).. U.S. 2013/0,092,469A1, p. 4/18/2013, f. 10/12/2011 (Appl. 271,769) (G01V-0001/133). (8 pp)

A disclosed seismic source assembly includes a body having a cavity and a seismic source positioned in the cavity. The cavity is in fluid communication with the water via an aperture oriented in a first direction. One or more surfaces of the body define a water contact significantly larger than an area of the aperture and on a side opposite the first direction. A described method includes forming a source assembly by (1) providing a cavity having an aperture for transmitting seismic waves; (2) rigidly attaching a base to a side of the cavity opposite the aperture, where a transverse area of the base is significantly larger than an area of the aperture; and (3) positioning a seismic source in the cavity. The source assembly is submerged in the water and triggered.

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1177434 MARINE EXPLORATION -- GEOPHYSICS
MONITORING OF AIR-GUN SOURCE SIGNATURE DIRECTIVITY; C.Niang, Y.Ni and J.Svay (Cie Generale Geophysique).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 2.1; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

In this paper, we propose to reconstruct and monitor the three-dimensional far-field signals radiating from air-guns sources during marine seismic acquisitions. The far-field signature (at vertical incidence) is estimated and monitored through several indicators in the time and frequency domains. The lateral directivity is calculated from an accurate estimation of the source array geometry. The actual air-guns positions are retrieved from inversion of joint near-fields recordings of starboard and portside source arrays. The three-dimensional directivity is then monitored with an image registration metric. Monitoring is carried out onboard for quality control of the seismic source stability. The reconstructed far-field signature can be used for shot-to-shot deconvolution. (Longer abstract available)

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1177435 MARINE EXPLORATION -- GEOPHYSICS
SEA SURFACE REFLECTION COEFFICIENT ESTIMATION; O.C.Orji, W.Sollner and L.J.Gelius (PGS; Oslo Univ).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 2.3; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

Sea surface reflection coefficient estimates are obtained from imaged sea surfaces by applying an imaging technique that is based on decomposed wavefields acquired by dual-sensor towed streamers. The accuracy of this technique in the case of imaging has been demonstrated employing controlled data scattered by realistic time varying rough sea surfaces (e.g., Pierson-Moskowiz sea surface). The scattered data was computed based on the Kirchhoff-Helmholtz integral. Here, the feasibility of recovering sea surface reflection coefficient estimates from deterministic and realistic sea surfaces is demonstrated. First, using existing studies, the sea surface reflectivity is benchmarked. Subsequently, sea surface imaging was employed to demonstrate the feasibility of recovering the sea surface reflectivity from marine seismic data. (Longer abstract available)

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1177436 MARINE EXPLORATION -- GEOPHYSICS
SYNCHRONIZED MULTILEVEL SOURCE: A ROBUST BROADBAND MARINE SOLUTION; R.Siliqi, T.Payen, R.Sablon and K.Desrues (Cie Generale Geophysique).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 2.4; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

The quest for robust broadband acquisition has become the cornerstone for obtaining high resolution images of the subsurface. The ghost diversity generated by variable depth streamer deployment creates the condition for processing to unlock the receiver ghost limit imposed by the depth of flat cables. Synchronized multilevel sources provide robust mitigation of source ghost effects by generating notchless wavefronts and make possible the source designature for the full bandwidth, a sine qua noncondition for broadband images. Moreover, an optimized 3D distribution of airgun volumes provide the necessary omnidirectional pattern required for a 3D marine source array. The imaging results obtained thanks to seismic acquisition combining variable depth streamer with synchronized source array show extra-large bandwidths where the only remaining frequency limit is the time sample interval. (Longer abstract available)

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1177437 MARINE EXPLORATION -- GEOPHYSICS
THEORETICAL STUDY ON MULTILEVEL SOURCE; H.Shen, t.Elboth, G.Tian, J.Warszawski and D.Lilja (Zhejiang Univ; CGG Norway).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 2.5; Available at http://www.seg.org as of 10/29/2013; 6 pp; Expanded abstract)

This paper presents theoretical design principles for marine multilevel sources. The work is based on a modified Johnson model. Compared to a horizontal source, a multilevel source can be designed to improve low frequencies and reduce the ghost notch effect. Optimum depth and volume combinations exist in the design. However, there is also some flexibility which makes it possible to optimize in terms of the residual bubble oscillation. By considering both operational aspects and performance, we propose three or four levels in a multilevel source to be reasonable. (Longer abstract available)

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1177438 MEXICO GULF -- GEOPHYSICS
MAPPING OF SALT STRUCTURES IN THE GULF OF MEXICO USING MARINE CSEM; J.J.Zach, M.A.Frenkel, P.Lindhom, A.M.Ostvedt-Ghazi, A.Kumar and T.Pham (EMGS Americas).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 10 pp)

Marine controlled-source electromagnetic (CSEM) methods for hydrocarbon detection, which rely on a partial waveguide effect by thin buried resistors of the transverse magnetic component of the electromagnetic field, and exploit the enhancement of certain components of the field received by ocean bottom EM receivers, have been used in hydrocarbon exploration on a commercial scale since 2002. These buried resistors can be either hydrocarbon deposits or other resistive bodies. Since the technology's inception, considerable progress has been made in the hardware, operational and quantitative interpretation fields of marine CSEM, so that grid acquisitions for 3D imaging of the resistivity distribution in the subsurface are becoming a standard part of the repertoire of geophysical probes for both prospect ranking and frontier exploration. One of the major challenges in the Gulf of Mexico (GoM) for both seismic and EM surveys is the high prevalence of salt at varying burial depths. The subject of the present study is to demonstrate the top-salt mapping capability by using 3D CSEM data inversion methods. Using a recent grid acquired over an area of the GoM for which detailed 3D seismic information exists, we demonstrate that we can match seismic surveys to within the depth resolution of CSEM, whereas CSEM gives additional information on the properties of the salt.

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1177439 MEXICO GULF -- GEOPHYSICS
AMPLITUDE INVERSION OF DEPTH-IMAGED SEISMIC DATA FROM AREAS WITH COMPLEX GEOLOGY; S.H.Archer, X.Du and R.P.Fletcher (WesternGeco).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-14; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Conventional amplitude inversion assumes that the input migrated image has preserved relative amplitude information and is free from the effects of illumination. Under this assumption, stretching a depth migrated image back to time and applying inversion based on 1D convolutional modeling can produce reasonable results. However, illumination effects in complex geological settings (such as shadow zones in subsalt imaging) pose a challenge to even the most advanced imaging algorithms such as reverse-time migration (RTM). Traditional approaches to compensate for illumination effects in migrated images are difficult to regularize in areas of very poor illumination. We address this problem by using the modeled response of the acquisition and imaging process, defined by point spread functions (PSF), to include these effects in forward modeling for inversion directly in the depth domain. We demonstrate this approach for poststack inversion of synthetic, subsalt data and also apply it to field data from the Gulf of Mexico. (Longer abstract available)

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1177440 MEXICO GULF -- GEOPHYSICS
BLENDED SOURCE SINGLE-SIDED FULL AZIMUTH OCEAN BOTTOM SEISMIC ACQUISITION; C.D.T.Walker, D.Hays and D.Monk (FairfieldNodal; Apache Corp).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 4.7; Available at http://www.seg.org as of 10/29/2013; 4 pp; Expanded abstract)

By combining blended source acquisition with nodal seismic technology in an acquisition geometry designed to minimize duplicate shots, a large scale ca 2,000 sq km ocean high density bottom seismic survey (OBS) is being acquired in less than 12 months in the Gulf of Mexico. This unprecedented operational performance is enabled through the unparalleled technical reliability of the autonomous nodes along with the application of blended source acquisition and a single-sided survey geometry to reduce survey duration while maintaining the benefits of wide azimuth and long offset acquisition. (Longer abstract available)

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1177441 MEXICO GULF -- GEOPHYSICS
SEPARATION OF SIMULTANEOUS SOURCE DATA VIA ITERATIVE RANK REDUCTION; J.Cheng and M.D.Sacchi (Alberta Univ).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 3.2; Available at http://www.seg.org as of 10/29/2013; 6 pp; Expanded abstract)

In this paper, we report an inversion algorithm based on singular spectrum analysis (SSA) that is capable of suppressing the interferences generated by simultaneous source acquisition. We derive an iterative scheme that adopts the projected gradient method to solve the source separation problem. The projection operator is the SSA rank reduction filter that suppresses incoherent noise in the frequency-space domain. Convergence of this algorithm can be achieved with appropriate choice of step size and an initial starting point. We use synthetic examples simulated with a data set from the Gulf of Mexico to illustrate this method. (Longer abstract available)

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1177442 MEXICO GULF -- GEOPHYSICS
STAGGERED MARINE ACQUISITION DESIGN FOR COMPLEX IMAGING; F.Mandroux, C.O.Ting, B.Montgomery and A.Lenart (Cie Generale Geophysique).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 1.6; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

We present a new staggered acquisition geometry aimed at providing improvements to complex imaging of the subsurface, such as subsalt in the Gulf of Mexico. The proposed design is a linear acquisition geometry that improves the offset and azimuth distribution compared to pre-existing wide azimuth acquisition techniques and generates extra-long offsets of up to 18 km. It also includes a broadband solution, by towing streamers with variable depth shape, to provide significant imaging resolution uplift. (Longer abstract available)

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1177443 MEXICO GULF -- GEOPHYSICS
TILTED ORTHORHOMBIC IMAGING FOR FULL AZIMUTH TOWED STREAMER DATA IN THE DEEPWATER GULF OF MEXICO; Q.Wu, Y.Li, Z.Li and W.Han (Cie Generale Geophysique).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-03; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Recently, tilted transverse isotropic (TTI) imaging has become a standard practice in deep water Gulf of Mexico (GOM) to resolve the anisotropic effects of wave propagation in salt-withdrawal mini-basins. This anisotropy is thought to arise from the geometry of sedimentation processes, with the “tilt” applied by subsequent tectonic activity. However, the presence of significant tectonic stress or uneven stress can cause fractures in thin-bed layers, which results in additional directional velocity variation for seismic wave propagation, or azimuthal anisotropy around the bed normals. In these cases, the transverse isotropic assumption is insufficient to explain conflicting residual moveouts among CIGs of different azimuths from TTI imaging. A more general anisotropic model, tilted orthorhombic (TOR), is needed to cope with azimuthal velocity variation in these complex geological settings. In this paper, we use a full azimuth (FAZ) data set from Keathley Canyon, GOM, to derive both TTI and TOR models. With the TOR model, we observe improved gather flatness among azimuths and improved structural imaging. We also demonstrate the advantage of FAZ data in detecting azimuthal anisotropy over WAZ data. (Longer abstract available)

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1177444 MEXICO GULF -- GEOPHYSICS
3D INTERPOLATION AND EXTRAPOLATION OF SPARSE WELL DATA USING ROCK PHYSICS PRINCIPLES: APPLICATIONS TO ANISOTROPIC VMB; R.Bachrach and K.Osypov (WesternGeco/Schlumberger).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-07; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Mapping sparse well data into 3D volumes is a challenging problem. Specifically, as seismic velocity model buildings (VMB) requires 3D velocity and anisotropy volumes, and as most anisotropy estimates are calibrated to borehole data, generating 3D anisotropic models relies heavily on extrapolating sparse well data. This spatial extrapolation problem is ill-posed and many subjective decisions are made during model building. New advancements in basin modeling and analysis enable us to model temperature and compaction history using simple physical principles. These fields can be used as auxiliary fields to solve spatial interpolation problems of sparse well log data using the concept of interpolation in the rock physics domain. The principle suggests that sparse well log measurements in the physical (x,y,z) 3D space may still adequately sample the rock physics space of temperature, porosity, and effective stress to allow proper reconstruction of the anisotropic velocity field in a manner that is consistent with the diagenetic process. We present the basic concepts and give a synthetic example to support this direct link between basin modeling and anisotropic velocity model building. (Longer abstract available)

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1177445 MIGRATION (SEISMIC) -- GEOPHYSICS
COMBINING PSDM [PRESTACK DEPTH MIGRATION] AND SEISMIC MODELING TO REDUCE UNCERTAINTIES IN TIME STRUCTURAL INTERPRETATION; W.Agudelo, J.F.Gamboa, S.Guevara, C.Piedrahita, L.E.Rojas, M.Morales and H.Alfonso (Ecopetrol SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 3 pp; Abstract only)

[For information only - meeting paper abstract]

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1177446 MULTIPLE REFLECTION -- GEOPHYSICS
SOURCE-SIDE DEGHOSTING: A COMPARISON OF APPROACHES; D.F.Halliday (Schlumberger Gould Res).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 2.6; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

In this paper, analytical expressions for the far-field radiation pattern of a marine source array to analyze the performance of various source-side deghosting schemes are used. I demonstrate and compare the performance of three different methods. These are the over-under source method (a phase shift and sum approach), Posthumus deghosting (ghost response cross-correlation and deconvolution), and vertical source gradient deghosting (a combination of multiple source components). The results indicate that, provided the source array is configured optimally, there is little difference between the performance of the over-under and the Posthumus methods. Within a defined bandwidth, the gradient method results in similar minimum errors as for the over-under and Posthumus methods; however, it outperforms the other two methods at higher frequencies. (Longer abstract available)

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1177447 NEIVA BASIN -- GEOPHYSICS
APPLICATION OF DESCRIPTIVE GEOMETRY SUPPORTED ELECTRIC LOGS WITH A CONTEMPORARY MATURE FIELD: TELLO FIELD, UPPER MAGDALENA VALLEY, COLOMBIA [APLICACION DE LA GEOMETRIA DESCRIPTIVA APOYADA EN REGISTROS ELECTRICOS CONTEMPORANEOS CON UN CAMPO MADURO: CAMPO TELLO, VALLE SUPERIOR DEL MAGDALENA, COLOMBIA]; H.M.Vargas, T.Hernandez and F.Sanchez (Halliburton; Ecopetrol).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; In Spanish; Abstract only)

[For information only - meeting paper abstract]

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1177448 NEUQUEN BASIN -- GEOPHYSICS
DEFINING A TARGET INTERVAL IN THE VACA MUERTA FORMATION, AGUILA MORA BLOCK, NEUQUEN BASIN, ARGENTINA; G.Depine, P.Buenafama, J.Veldkamp, D.Repol, C.Isaza-Londono and M.Gardini.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The hydrocarbon potential of the Neuquen basin in Argentina has been recognized since the nineteenth century through the presence of seeps. The petroleum systems in the basin are well understood for conventional traps, with almost a century of production since 1918. However, the unconventional hydrocarbon plays are still in their early stages and there are a lot of uncertainties to address. One key challenge for unconventional hydrocarbon exploration is defining a target zone where to land a horizontal well, and/or place the perforations for hydraulic fracturing. New 3D seismic has been acquired in the Aguila Mora block, north of the Cortaderas lineament. This area has been affected by Cenozoic magmatism which results in sill intrusions at the level of the Jurassic-Cretaceous reservoir, the Vaca Muerta Formation. The new data allow a detailed mapping of the position of the sills in this sector of the basin. These sills affect 65% of the block, which introduces a new challenge for drilling and stimulating wells. (Original not available from T.U.)

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1177449 NJORD FIELD -- GEOPHYSICS
RE-MAPPING THE NJORD FIELD WITH OCEAN-BOTTOM SEISMIC DATA; P.J.McFadzean, G.Pless and S.Ostmo (Statoil ASA).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-09; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Ocean-bottom seismic (OBS) data has recently been acquired over the Njord field with a view to improving the image for the seismic interpreter. Comparisons between OBS and previous generations of streamer data show that faults can be placed with significantly higher confidence on the former dataset. This results from improved definition of rotated Jurassic/Triassic fault blocks, assigned in part to the rich azimuthal illumination associated with the OBS acquisition. Additional structural details contained in the OBS data also emerge using automated trace analysis techniques such as coherency. As such, OBS data acts as a powerful tool to reduce the residual structural uncertainty on the highly compartmentalised Njord field. (Longer abstract available)

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1177450 NOISE REDUCTION -- GEOPHYSICS
EFFECT OF NOISE IN BLENDING AND DEBLENDING; G.Berkhout and G.Blacquiere (Delft Univ Technol).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 3.3; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

We show that deblended shot records have a better background-related S/N than shot records in unblended surveys. This improvement increases with increasing blending fold and decreasing survey time. An interesting consequence of this property is that blended surveys can be carried out under more severe noise conditions than unblended surveys. It is advised to optimize the survey time in areas with a large background noise level or in areas with severe environmental restrictions or in areas where access is only for a limited time period. We conclude with the observation that unblended seismic acquisition may become a technology of the past. (Longer abstract available)

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1177451 NOISE REDUCTION -- GEOPHYSICS
GUIDED WAVES: INVERSION AND ATTENUATION; D.Boiero, C.Strobbia, L.Velasco and P.Vermeer (WesternGeco).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-01-08; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Guided waves contain significant information about the near surface in seismic data, but prove difficult to remove through conventional velocity discrimination methods. Here, we analyse guided waves jointly with ground roll to characterise the near-surface properties and then we remove them by modelling methods. We begin by retrieving guided wave and ground-roll phase velocities. Then, we jointly invert them to build S- and P-wave velocity models using a robust multimodal inversion algorithm. Finally, we use the inferred guided wave and ground-roll properties to model the dispersive coherent noise and subtract it while preserving the signal. (Longer abstract available)

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1177452 NORMAL MOVEOUT CORRECTION -- GEOPHYSICS
NMO STRETCH IN SURVEY DESIGN AND PROCESSING; G.J.O.Vermeer (3DSymSam-Geophys Advice).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P1.2; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

In seismic survey design, the maximum acceptable stretch factor is often used as a basis for computation of the mute offset, and ultimately, for the choice of maximum offset of the geometry. The formula that is commonly used does not take the dependence of the rms-velocity Vrms on zero-offset time t0 into account. In this paper, a more accurate formula is derived and discussed. It turns out that stretch tends to increase faster as function of offset than according to the old formula. As a consequence, shorter offsets may be selected that satisfy maximum stretch requirements. A most interesting consequence of the new approach is that the new formula for mute offset computed for stretch S predicts the offset corresponding to angle of incidence i according to S = 1/cos i. Average stretch (averaged over all offsets in a CMP) also depends on the variation of Vrms with t0; however, this dependence is not very strong. Average stretch is much larger for wide-azimuth 3D data than for 2D data. (Longer abstract available)

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1177453 NORTH SEA -- GEOPHYSICS
MULTI-LAYER NON-LINEAR SLOPE TOMOGRAPHY; P.Guillaume, X.Zhang, A.Prescott, G.Lambare, M.Reinier, J.P.Montel and A.Cavalie (Cie Generale Geophysique).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-01; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Tomography algorithms using gridded model description and ray tracing have made continuous progress in terms of resolution and efficiency. However one strong limitation is the difficulty to recover strong velocity contrasts encountered in presence of salt bodies, chalk, basalt, carbonates. The conventional solution is to proceed in a top-down manner from one velocity contrast to the next one. In such a layer stripping approach, velocities and horizons are updated layer after layer recursively from top to bottom. Such a workflow is time consuming and prone to velocity errors being propagated into deeper layers as the model building progresses. We present a solution that involves a non-linear tomographic approach combining dense dip and residual move-out picks with horizons describing the main velocity contrasts. While dip and RMO picks are used to update 3D velocity grids inside each layer by non-linear slope tomography, the picked horizons describing layer boundaries are kinematically de-migrated and re-migrated recursively from top to bottom to reposition the major velocity contrasts after each velocity update. We present applications of the method to a marine North Sea dataset and to a land dataset with salt structures and compare the results with the layer stripping approach. (Longer abstract available)

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1177454 NORTH SEA -- GEOPHYSICS
BROADBAND PROCESSING WITH CALM AND ROUGH SEAS: OBSERVATIONS FROM A NORTH SEA SURVEY; S.Grion, A.Azmi, J.Pollatos, N.Riddalls and R.G.Williams (Dolphin Geophysical).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P2.5; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

It is well known that rough seas cause higher levels of noise in marine seismic data, and that the noise level is higher for shallower streamer tows. It is also understood, although less well known, that the roughness of the sea surface induces time and space dependent variations in both receiver-side and source-side ghost reflections. Since broadband processing aims at the removal of ghost effects, it is important to assess the impact of these factors on broadband data quality. This paper reviews previous work related to these subjects and discusses two adjacent 3D seismic lines acquired in the central North Sea (Quad. 29/30), in calm and rough conditions, respectively. The objective of this analysis is to draw qualitative and quantitative conclusions on broadband seismic data quality in rough and calm conditions. (Longer abstract available)

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1177455 NORWAY -- GEOPHYSICS
ICE SCOURS AS TRAPPING MECHANISM FOR SHALLOW GAS; K.Haavik and M.Landroe (Norwegian Univ Sci Technol).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-01-04; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Shallow gas is commonly found on the Norwegian Continental Shelf and is a potential geohazard for drilling operations. Examples of shallow gas in Upper Pliocene sediments, in the Central North Sea is presented, and a model for how buried ice scours can act as a trapping mechanism for shallow gas is proposed. The examples are from conventional 3D seismic data. (Longer abstract available)

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1177456 NORWAY -- GEOPHYSICS
A HYBRID AND ADAPTIVE ATTRIBUTE FOR NOISE REDUCTION IN POST-STACK SEISMIC DATA; A.A.Aqrawi, D.Barka and W.Weinzierl (Schlumberger; Stavanger Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-12; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

We propose a hybrid and adaptive smoothing method which accounts for attenuation and texture variations inherent in seismic data. Seismic conditioning is a fundamental step in numerous attribute assisted interpretation workflows. Despite its simplicity, smoothing is utilized widely when it comes to noise reduction while preserving edges. Attenuation and dispersion of the acoustic wavefield often confines the use of such techniques to a limited texture or interval. We present a spatio-temporal windowing technique with adaptive smoothing. Depth dependent operator sizes are used to derive a variance based neighborhood estimate. This consecutively is used to condition the operator size in addition to defining the smoothing method. We alternate between the mean and median smoothing methods depending on the coherency in the seismic response. The median smoothing method is applicable to regions of high variability, whereas the mean form gives an enhanced continuity of the bedding and is hence preferable in coherent regions. The method proposed in this study is applied to a heavily faulted dataset offshore Norway on the continental shelf. Results obtained indicate that the method proposed for hybrid adaptive filtering can provide increased clarity in the identification and evaluation of subsurface features. (Longer abstract available)

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1177457 NORWEGIAN SEA -- GEOPHYSICS
PSEUDO-ELASTIC IMPEDANCE CALIBRATED TO ROCK PHYSICS MODELS FOR EFFICIENT LITHOLOGY AND FLUID MAPPING FROM AVO DATA; P.A.Avseth, T.Veggeland, M.Christiansen, K.J.Ardal and F.Horn (Spring Energy AS; Qeye Labs).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-01; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

We have shown how we can derive attributes similar to elastic impedances, which we refer to as pseudo-elastic impedances, directly from rock physics templates of AI vs. Vp/Vs, without knowing the density. This allows us to calibrate the elastic impedances to local rock physics models, and to honour the curvature of rock physics models, normally associated with compaction trends. In areas with large variability in burial depth, it is important to honour the true variability of the background trend. The final regression models are easy to implement in quantitative interpretation workflows, and allow for quick mapping of fluid or lithology anomalies that are consistent with rigorous rock physics models. We have demonstrated the validity of this approach on well log and seismic data from a prospective area in the Norwegian Sea. (Longer abstract available)

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1177458 NUMERICAL INVERSION -- GEOPHYSICS
DATA DRIVEN VS. MODEL BASED INVERSION: WHEN AND WHY?; P.Thore (Total E&P UK Ltd).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-15; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

In this paper, is a classification of seismic inversions in two categories: data driven and model based. Based on examples, it is shown that no inversion is purely data driven and that the user has to provide prior information which constrains the solution to a certain behavior. On the other hand, model based inversion can provide very appealing results (an example breaks the traditional view of seismic resolution), provided that the underlying model is sound. In conclusion, a workflow is proposed that tries to get the best from both approaches. (Longer abstract available)

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1177459 NUMERICAL INVERSION -- GEOPHYSICS
SEISMIC REFLECTIVITY INVERSION IN A MULTICHANNEL MANNER; R.Wang and Y.Wang (Imperial Coll, London).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-06-06; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

In reflectivity inversion problems, due to complicated structures and low signal-to-noise ratio (SNR) of input seismic traces, the conventional Cauchy constrained deconvolution method is normally not able to provide the results that can clearly characterize the geology structure. One of the reasons is that the inversion process is performed on a trace-by-trace basis, and as a result the continuity along reflectors in seismic images may be deteriorated. In this paper, we develop a multichannel algorithm to perform this inversion process, where a multichannel precondition filter is incorporated into the conventional Cauchy constrained deconvolution method and the information of adjacent traces is applied during the inversion process. Numerical experiments have verified the validity and feasibility of this method by field data, showing that the reflectivity profiles obtained using the proposed method can have an improved lateral continuity and clearer structure. (Longer abstract available)

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1177460 NUMERICAL INVERSION -- GEOPHYSICS
USE OF SIMULTANEOUS JOINT INVERSION AS A MAXIMUM CONCORDANCE SOLVER FOR STATICS; M.Mantovani, M.Clementi and F.Ceci (WesternGeco).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-01-03; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Statics are primarily derived from seismic refractions or first arrivals, and strongly rely on their quality of gathers. At the initial stage of seismic processing, refractions are the single data input. In common practise, inversions of first breaks are based on user’s interpretation of early arrivals and, therefore, they are subject to systematic errors, especially if picking is automated as for large 3D data sets. In such circumstances, it is desirable to avoid overfitting of observations in inversion. An active criteria counter to systematic mistakes is presented here, based on statistical benchmarking against independent non-seismic measures. The approach is based on simultanous joint inversion for measure integration. While rock physics relations are normally unstable at the near surface, the qualitative concept of localized anomaly can be transported between various geophysical domains, as is normally done in prospect play evaluation. Anomaly distribution consistency between domains is here used as a discriminant of input data through a-posteriori inversion result benchmarking. A static solver can, therefore, weight more the first break data, which are experimentally confirmed by several independent measurements, rather than contradicting data. Concordance is based on concordant anomaly generation in the a-posteriori inverted model. (Longer abstract available)

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1177461 NUMERICAL INVERSION -- GEOPHYSICS
USING SEISMIC INVERSION TO CALIBRATE DATA CONDITIONING PROCESSES; K.Darke, B.Broussard, V.Young On, S.Cardinez and P.Watterson (Schlumberger; WesternGeco; Petrotrin).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177462 OCEAN BOTTOM SEISMIC -- GEOPHYSICS
WAVEFIELD DECOMPOSITION OF SEABED NODE MARINE RECORDINGS; L.Amundsen, L.Ikelle, J.O.A.Robertsson and H.Westerdahl (Norwegian State Oil Co; ETH Zurich).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 4.5; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

We test two methods for 3D wavefield decomposition of marine seismic data recorded on multicomponent sensors in a seabed node. The methods work on traces from one single shot into the node. Here, multicomponent refers to a combination of sensors that includes two or more closely spaced sensors such as a hydrophone, a geophone, an accelerometer, a rotational seismometer, a pressure derivative configuration of hydrophones, or a vertical particle velocity derivative configuration of hydrophones or geophones. The derivative can be a first-order derivative, a second-order derivative, or a higher-order derivative. (Longer abstract available)

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1177463 OCEAN BOTTOM SEISMIC -- GEOPHYSICS
ONBOARD PROCESSING QUALITY CONTROL FOR AUTONOMOUS OCEAN BOTTOM NODES; S.Ronen, A.Kandilarov, C.Massacand, B.Mattocks, J.Paillet, G.Roger, A.Rokkan, C.Zhang, C.Vuillermoz et al. (Seabed Geosolutions).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 4.8; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

Onboard processing assures that a crew will not leave an area before the data have been acquired. Moreover, onboard processing increases the value of information by reducing the time it later takes to process the data onshore. With autonomous ocean bottom nodes, the data are available only upon retrieval and onboard processing must be specially adapted to provide effective quality control. (Longer abstract available)

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1177464 OCEAN BOTTOM SEISMIC -- GEOPHYSICS
ITERATIVE DEBLENDING OF SIMULTANEOUS-SOURCE SEISMIC DATA USING SHAPING REGULARIZATION; Y.Chen, S.Fomel and J.Hu (Texas Univ, Austin).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 3.8; Available at http://www.seg.org as of 10/29/2013; 7 pp; Expanded abstract)

We introduce a new iterative estimation scheme for separation of blended seismic data from simultaneous sources. We first construct an augmented estimation problem, then use shaping regularization to constrain the model when iteratively solving the problem. Both model and data in the estimation problem correspond to different seismic sources. In the case of two sources, the forward operator is a block operator composed of two identity operators--one blending operator and one inverse blending operator. The shaping operator used in our method is soft thresholding in the seislet domain, where useful seismic signals stand compact and sparse. Numerically blended synthetic and field datasets demonstrate an excellent performance of the proposed algorithm. (Longer abstract available)

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1177465 OCEAN BOTTOM SEISMIC -- GEOPHYSICS
TIME-JITTERED OCEAN-BOTTOM SEISMIC ACQUISITION; H.Wason and F.J.Herrmann (British Columbia Univ).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 1.1; Available at http://www.seg.org as of 10/29/2013; 6 pp; Expanded abstract)

Leveraging ideas from the field of compressed sensing, we show how simultaneous or blended acquisition can be setup as a compressed sensing problem. This helps us to design a pragmatic time-jittered marine acquisition scheme where multiple source vessels sail across an ocean-bottom array firing airguns at jittered source locations and instances in time, resulting in better spatial sampling and speedup acquisition. Furthermore, we can significantly impact the reconstruction quality of conventional seismic data (from jittered data) and demonstrate successful recovery by sparsity promotion. In contrast to random (under)sampling, acquisition via jittered (under)sampling helps in controlling the maximum gap size, which is a practical requirement of wavefield reconstruction with localized sparsifying transforms. Results are illustrated with simulations of time-jittered marine acquisition, which translates to jittered source locations for a given speed of the source vessel, for two source vessels. (Longer abstract available)

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1177466 OCEAN BOTTOM SEISMIC -- GEOPHYSICS
ESTIMATION OF SHEAR-WAVE ATTENUATION PROFILE FROM SCHOLTE WAVES USING OCEAN-BOTTOM SEISMIC DATA; Z.Cao and H.Dong (Norwegian Univ Sci Technol).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-10; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

As inversion methods of interface waves (or surface waves) for shear-wave velocity profile are widely applied and much more ocean bottom seismic (OBS) data is available, it is urgent to develop stable and practical inversion methods to estimate shear-wave attenuation profile for geotechnical engineers to get attenuation information of subsurface layers and for researchers to analyze the attenuation mechanism of seabed sediments. This paper presents a technique for inversion of shear-wave attenuation profile from interface wave dispersion. By focusing on two issues, i.e., to extract attenuation dispersion curve and correct geometrical spreading loss of the interface waves, Prony’s method is used to simultaneously extract the dispersion of the velocity and attenuation while the geometrical spreading loss is simply corrected by product of in the interface waves. The attenuation profile is obtained by a synthetic example and it is shown that the method is efficient. This approach is also applied to one set of OBS data. (Longer abstract available)

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1177467 OCEAN BOTTOM SEISMOMETER -- GEOPHYSICS
JOINT SOURCE DEBLENDING AND RECONSTRUCTION FOR SEISMIC DATA; C.Li, C.C.Mosher, L.C.Morley, Y.Ji and J.D.Brewer (ConocoPhillips).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 3.1; Available at http://www.seg.org as of 10/29/2013; 6 pp; Expanded abstract)

The goal of simultaneous shooting is to acquire better seismic data more quickly at lower total cost. Effective source deblending techniques provide us with one of the tools for accomplishing this goal. The use of compressive sensing theory gives us another tool by helping to increase the effective spatial bandwidth of our acquired data. Seismic surveys designed to collect both optimally sampled and blended data can reduce acquisition costs and significantly improve image quality. In this paper, we consider a joint deblending and reconstruction problem using the framework of a synthesis-based basis pursuit denoising model. The combination of a deblending operator together with a restriction operator leads to a joint inversion in which the data are both deblended and reconstructed at regular sampling intervals. Our inversion model can be further constrained by down-weighting the evanescent portion of the wavefield. We illustrate our method using both synthetic and real data examples simulating continuous-time recording under ocean bottom node (OBN) settings. (Longer abstract available)

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1177468 OMAN -- GEOPHYSICS
BEYOND THE DOTS: MICROSEISMIC MONITORING OF A FRACTURED RESERVOIR DURING STEAM INJECTION IN OMAN; S.Mahrooqi, S.Busaidi, I.Ismaili, F.Clow, T.Urbancic, A.Baig and A.Kassam (Petroleum Development Oman; Engineering Seismology Grp).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-01-14; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

A microseismic network of 13 wells, over a fractured heavy oilfield in Oman, has accurately monitored a steam injection program and has also observed sufficient multi-well events to enable extensive SMTI analyses. The SMTI data has been analysed together with the steam injection progress to identify the source mechanisms and fracture planes in relation to the pre-existing fault network, and has indicated, in different areas, both re-activation of existing faults and new fracture activity. (Longer abstract available)

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1177469 PATTERN SHOOTING -- GEOPHYSICS
MULTIPLE SIMULTANEOUS VIBRATORS CONTROLLED BY M-SEQUENCES; J.Wong (Calgary Univ).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 3.6; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

The increasing demand for high-resolution 3D seismic imaging is driving the search for methods of efficiently acquiring field datasets with hundreds of millions or even billions of seismic traces. The common method is to deploy as many geophones as possible for recording. Acquisition productivity can be further enhanced if multiple simultaneous sources can be used. When the sources are controlled sources such as land vibrators, simultaneous sourcing can be done effectively with minimal crosstalk if the vibrators are driven by a set of quasi-orthogonal pilot signals. A quasi-orthogonal set in this context has the following properties: (1) the auto-correlation of any member in the set closely approximates the delta function; and (2) the cross-correlation between any two different members in the set is very nearly zero with no oscillatory side lobes. Maximal length sequences, or m-sequences, are periodic mathematical periodic entities with values of -1 and 1. A single m-sequence can be used to construct multiple shifted m-sequences to form a set of pilot signals with the desired properties. We illustrate the use of shifted m-sequences for simultaneous sourcing with a numerically generated example as well as with a laboratory experiment. (Longer abstract available)

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1177470 PATTERN SHOOTING -- GEOPHYSICS
PROCESSING RESULTS OF SIMULTANEOUS SOURCE SURVEYS COMPARED TO CONVENTIONAL SURVEYS; G.Alexander, R.Abma, R.Clarke, S.La Dart, M.Corzo, K.Gulette, J.Mika and J.Kommedal (BP).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 3.5; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

Two tests of our independent simultaneous source method using two boats were done--one in the North Sea and the other in Trinidad. The North Sea simultaneous source survey was done for one patch in conjunction with a conventional survey in the same areas so a robust comparison could be made between the different acquisition methods. In Trinidad, a conventional survey was acquired over a single patch of a production simultaneous source survey to verify the simultaneous source survey results. The results of these comparisons were similar enough to encourage the continuation of a multi-year OBC simultaneous source survey in Trinidad (Kommedal et al., 2013). (Longer abstract available)

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1177471 PATTERN SHOOTING -- GEOPHYSICS
POPCORN SHOOTING: SPARSE INVERSION AND THE DISTRIBUTION OF AIRGUN ARRAY ENERGY OVER TIME; R.Abma and A.Ross (BP).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 1.7; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

Airgun arrays are a standard marine seismic source. These arrays typically have a large number of individual airguns that are activated simultaneously. Allowing the activation times of individual airguns within an array to vary over an extended time period allows a greater flexibility in their use. This distribution of the activation times over time may create notches in the source signal spectra, but the sparse inversion method proposed here can restore these notches in the spectra by using information from nearby traces. If several patterns of individual airgun initiation times that do not share the same spectral zeros are used, the signal generated by a conventional source may be reconstructed with a high degree of accuracy. This method offers a significant operational advantage over other alternatives in that it uses existing equipment with minor modifications to distribute the individual airgun activation times. Among the advantages of this method is the possibility of reducing the peak amplitudes of airgun sources. In the modeled example shown here, the peak amplitude of the output signal is reduced by a factor of 10. (Longer abstract available)

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1177472 PERMIAN BASIN -- GEOPHYSICS
AN INNOVATIVE AND COST-EFFECTIVE METHODOLOGY IMPROVES IMAGING OF THE WOLFCAMP UNCONVENTIONAL RESERVOIR: CASE STUDY; T.Fleure, V.Sublette and G.Hoover (Global Geophysical Svcs).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P1.7; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

The University Lands 3D seismic survey was acquired with approximately eight times greater fold levels than typically recorded in the area. A decimation experiment has shown that the additional fold provides significant improvement in signal-to-noise ratio at the Wolfcamp target horizon as well as deeper in the section. The high fold survey was acquired in a cost-effective manner by using the enabling technologies of advanced light weight nodal recording systems and an offset-separated slip sweep vibroseis methodology. It is the first survey of its kind in the Permian Basin. (Longer abstract available)

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1177473 PETROLEUM SYSTEM -- GEOPHYSICS
IMPROVING PETROLEUM SYSTEM ANALYSIS WITH BETTER UNDERSTANDING OF SEISMIC INPUT; L.Duan and J.Liu.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Seismic data serves as the primary input for basin model construction and petroleum system analysis. The seismic data quality and interpretation directly impact basin model quality through providing inputs regarding a basin's formation depth, geometry, depositional and lithological information. Understanding seismic data and the associated uncertainties will allow for effective incorporation of seismic information into basin models to enhance the model's geologic content and predictive capability. The scheme employs integrating seismic data within a 3D basin model as the basis of analysis. During the model building process, seismic attributes are extracted and interpreted in order to use these variables to optimize the basin's geologic elements and populate the litho-facies. The seismic sections or cube inserted into the 3D basin model provide visual and dynamic connections between the seismic data and the basin model. This allows for optimization in establishing correlations and interactions between petroleum system components and seismic characteristics. Uncertainty analysis is performed using the integrated model. (Original not available from T.U.)

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1177474 PETRONIUS FIELD -- GEOPHYSICS
FIT-FOR-PURPOSE 4D SEISMIC ACQUISITION: PETRONIUS 2012 EXPERIENCE AND LESSONS LEARNED; B.D.Kinabo, H.Bedle, B.Regel, H.Hidalgo, G.Chou and S.Cooke (Chevron Corp).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P2.3; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

Petronius Field was discovered in 1995 and has been in production since 2000. Chevron is the operator of the field with 50% interest; Marathon Oil owns the remaining 50% interest. The platform sits in 1,754 ft of water in Viosca Knoll OCS block 786 in the deep water Gulf of Mexico (GOM). The objective of the 2012 survey was to acquire incremental 4D (i.e., 2005-2012) for the purpose of optimizing recovery, verify infield drilling opportunities, and prevent the drilling of unnecessary wells. The survey was designed to minimize source and targeted receiver difference with the 2005 survey. The targeted receiver range (i.e., 1-3 km offsets) offered the most value to the asset development team for reservoir management. To increase repeatability, steerable sources and 10 steerable streamers were employed to repeat the eight streamer footprint of the 2005 survey. Seismic acquisition planning started in June 2011, with field data acquisition commencing in April 2012 and ending in May 2012. The quick look data has already affected well placement and well drill queue decisions. (Longer abstract available)

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1177475 PHANTOM HORIZON -- GEOPHYSICS
METHOD OF TRACKING DISCONTINUOUS SEISMIC HORIZONS IN SEISMIC IMAGES; S.Guillon, G.Zinck, M.Donias and O.Lavialle.. U.S. 2013/0,083,973A1, p. 4/4/2013, f. 9/6/2012 (Appl. 604,964), pr. Fr. 10/4/2011 (Appl. 1,158,947) (G06K-0009/00). (14 pp)

The invention targets in particular a method for searching for a seismic horizon in a seismic image of the subsoil. The method notably comprises the designation of two points belonging to the horizon sought, the iterative search for the best solution for the equation of the seismic horizon notably by virtue of a breakdown of this solution into two components, a pseudo-continuous component and a jump component.

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1177476 PRESTACK DEPTH MIGRATION -- GEOPHYSICS
MITIGATION OF THE 3D CROSS-LINE ACQUISITION FOOTPRINT USING SEPARATED WAVEFIELD IMAGING OF DUAL-SENSOR STREAMER SEISMIC; A.S.Long, S.Lu, D.Whitmore, H.LeGleut, R.Jones, N.Chemingui and M.Farouki (Petroleum Geo-Services; Lundin Malaysia BV).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-01-05; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

A modified one-way equation pre-stack depth migration of up-going and down-going pressure wavefields was applied to two datasets derived from 3D towed dual-sensor streamer data in offshore Australia and Malaysia. The primary objective was to mitigate the well-known cross-line acquisition footprint effects upon shallow data quality and interpretability. The new methodology introduced here exploits the illumination corresponding to surface multiple energy, and thus exploits what has historically been treated by the seismic industry as unwanted noise. Whereas, a strong cross-line acquisition footprint affected the very shallow 3D data using conventional processing and imaging, the new results yield spectacular continuous high resolution seismic images, even up to, and including the water bottom. One implication of these results is that very wide-tow survey efficiency can be achieved without compromising shallow data quality if dual-sensor streamer acquisition and processing is used, even in very shallow water areas such as that discussed here. The imaging methodology can account for all degrees of lateral variability in the velocity model, full anisotropy, and angle gathers can be created to assist with velocity model building. (Longer abstract available)

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1177477 PRESTACK TIME MIGRATION -- GEOPHYSICS
A GEOMETRY OPTIMIZATION METHOD BASED ON PRESTACK MIGRATION EFFECT ANALYSIS; X.Jianjun, T.Donglei, H.Yonggui, P.Xiao and W.Zhengjun (BGP).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P1.1; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

The results of migration imaging are influenced by acquisition geometry. In this paper, we put forward three geometric factors that affect the prestack migration effect, namely, trace density, the prestack migration effective coverage spectrum, and evenness. According to the influence of these factors on migration effects three corresponding evaluation indices are determined, viz. migration signal-to-noise (S/N) ratio, migration amplitude dispersion, and migration noise. This method adopts the relatively lower trace density with a relatively good migration effect index as a target to choose the geometry and realize the purpose for optimizing the acquisition scheme. This method takes into account the influence of migration noise as well as the acquisition footprint, which is favored to improve the fidelity of seismic acquisition. (Longer abstract available)

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1177478 PUTUMAYO -- GEOPHYSICS
CAFELINA-1, A DRY WELL WITH KEY INFORMATION FOR THE DISCOVERY OF THE COSTAYACO FIELD [UN POZO SECO CON INFORMACION CLAVE PARA EL DESCUBRIMIENTO DEL CAMPO COSTAYACO]; C.Ramirez Q., F.Solano S. and A.Gutierrez S. (Gran Tierra Energy Ltd).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 8 pp; In Spanish)

The well Cafelina-1 was drilled by the Texas Petroleum Company in 1964. It is located northwest of Putumayo Basin (Colombia) and west of Argosy Oil Fields on the Guayuyaco and Santana Contracts. The well reached a TD of 8,821 ft, which crossed the Mesozoic and Cenozoic sequences, similar to that found on Orito Field located 52 km to the south. During drilling, some non-significant hydrocarbons manifestations were reported. The DST performed showed negative but very interesting results. In 2000 Bidding Round, ECOPETROL offered this block, but no company evaluated it as prospective. In 2005, ARGOSY (now Gran Tierra Energy Colombia Ltd.) signed a CHAZA contract with ANH E&P. During the first exploration phase, the data from the well Cafelina-1 was analyzed and a possible oil water contact was suggested. The good samples description, correlation of the offset wells and the re-interpretation of the existing seismic were the basis of the drilling proposal for the discovery well Costayaco-1, drilled during May, 2007.

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1177479 Q MEASURING -- GEOPHYSICS
TOMOGRAPHIC Q ESTIMATION FOR VISCOACOUSTIC IMAGING; A.Valenciano and N.Chemingui (Petroleum Geo-Services).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-09; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Viscoacoustic imaging in anisotropic media is achieved by tomographic estimation of the earth attenuation (Q model), and prestack wave equation migration. The proposed Q tomography algorithm uses spectral ratios computed on surface seismic data as the input. An integral tomographic equation relates the Q model with the measured spectral ratios. The tomography numerical implementation results in a linear inversion scheme that we solve by conjugate gradient methods with 3D regularization. The output Q model is combined with VTI or TTI anisotropic models to perform model-driven attenuation and anisotropy compensation during imaging. To that effect, we use a viscoacoustic anisotropic Fourier finite differences one-way wave equation migration. Results from a synthetic example and a VTI field dataset from the North Sea demonstrate the accuracy of our tomographic estimation of Q, and the effectiveness of the viscoacoustic wave equation migration for attenuation compensation. (Longer abstract available)

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1177480 Q MEASURING -- GEOPHYSICS
Q ESTIMATION FROM SURFACE WAVES; M.Werning, D.Boiero and P.Vermeer (Hamburg Univ; WesternGeco).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-01-02; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Despite the fact that surface waves in land seismic data are often regarded as noise, they can also be used to obtain valuable information about the subsurface. Because their propagation is directly related to the properties of the subsurface, the analysis and inversion of surface waves can provide a characterisation of the near surface. In this paper, surface waves were used to estimate the dimensionless quality factor Q, which is most commonly used to measure the attenuation of seismic waves. To invert for the quality factor Q, the surface-wave attenuation coefficient and the phase velocity, as well as the near-surface S- and P-wave velocities, are needed. A weighted damped least-squares algorithm was chosen for the inversion. The algorithm produced promising results both for synthetic data, used to test different subsurface conditions (not shown here), and for real data sets, providing information about the subsurface that is not yet obtainable with other techniques. (Longer abstract available)

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1177481 RESERVOIR CHARACTERIZATION -- GEOPHYSICS
SEISMIC PROCESSING TECHNIQUES BASED ON ATTENUATION: A FIRST STEP FOR THE CHARACTERIZATION OF HEAVY OIL RESERVOIRS [TECNICAS DE PROCESAMIENTO SISMICO BASADAS EN ATENUACION: UN PRIMER PASO PARA LA CARACTERIZACION DE YACIMIENTOS DE CRUDO PESADO]; E.E.Hernandez Sanabria, Y.Figueredo Baez and W.M.Agudelo Zambrano (Inst Colombiano Petroleo).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 7 pp; In Spanish)

Historically, heavy oil exploration using seismic data has not allowed us to distinguish areas of water and oil because the seismic parameters that may be derived from the conventional process such as propagation velocities and densities are not sensitive to differences between these two fluids. However, heavy oil has a high viscosity which allows the transmition of shear waves, and their propagation velocities are dispersive. Additionally, the elastic properties of heavy crudes are frequency dependent. Considering these characteristics, in recent years new seismic processing methods have been implemented that take into account the attenuation of seismic energy; lithology can be characterized by heavy oil field. In this paper, we show algorithms for calculating the attenuation from seismic data, quantified in the viscoelastic quality factor Q, and its contribution in improving seismic imaging. This is the first step in the goal of characterizing potential heavy oil reservoirs based on seismic method.

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1177482 RESERVOIR MODEL -- GEOPHYSICS
HIGH-RESOLUTION SEISMIC GEO-MODEL FOR INTERPRETATION ACROSS A COMPLEX STRUCTURE; S.Mukund, I.Schmidt and D.Stanbrook (Maersk Oil).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-14; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

In this paper, we present an integrated approach to seismic interpretation using well data, seismic inversion and innovative geo-modeling technology. Structural complexity and poor signal to noise ratio can limit our ability to interpret seismic data, limiting geological understanding. This case study illustrates a methodology that helps to reduce the uncertainty of the seismic interpretation process and improves our understanding of the stratigraphy. The approach to interpretation demonstrated in this paper has helped to impose strong constraints to guide the seismic interpretation and reduce uncertainty. As a result, depositional features were interpreted from seismic attributes, supporting well and core-based regional understanding. (Longer abstract available)

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1177483 RESERVOIR MODEL -- GEOPHYSICS
STRUCTURALLY SHARPENED CONTINUOUS COLOR METHOD FOR EXTRACTION OF STRUCTURAL FEATURES FROM SEISMIC DATA; A.Laake (WesternGeco).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-15; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

The extraction of structure from seismic data volumes is a challenge, especially when the structure is confined to thin layers and does not follow horizons. Usually, spatial or spectral seismic attributes are used to extract such structural features. A new method that is based on continuous color rendering in red-green-blue (RGB) color space and hue-saturation value allows the extraction of heterogeneities from seismic data cubes that are representative of geological features such as channels and fracture zones. The analysis in continuous color space enhances the dynamic range of the studied data, which allows for image processing to sharpen the heterogeneities representative of geological structures. Simultaneously, it attenuates unwanted noise, which may be present in the seismic data. The structurally sharpened RGB method does not rely on spatial averaging in any direction, which is conventionally required during the generation of seismic spatial attributes. This results in high-resolution imaging of structures that has been demonstrated on channels and fracture zones in a 40 m thick clastic layer package. (Longer abstract available)

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1177484 RESERVOIR MODEL -- GEOPHYSICS
INVERSION BY TRACE MATCHING; P.A.Connolly and M.J.Hughes (BP).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-13; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

We propose a method to estimate reservoir properties by matching seismic to very large numbers of pseudo-wells. Each pseudo-well consists of a full suite of well-log curves based on a comprehensive rock physics model. The pseudo-wells are calibrated to real wells and constrained by the seismic interpretation with stochastic micro-layering. The input seismic data are colour inverted angle stacks (optionally multiple angle stacks). The inversion algorithm is 1D, Monte Carlo. All pseudo-wells are generated completely independently of any previous result and no spatial correlation is enforced. No low-frequency model is required. The procedure also provides estimates of uncertainties allowing the results to be integrated with other data types in a Bayesian framework. We outline the process and illustrate showing application to a deep marine turbidite field. (Longer abstract available)

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1177485 ROSS LAKE FIELD -- GEOPHYSICS
ANALYSIS OF SEISMIC ATTENUATION AND MULTIPLE SCATTERING WITH A VERSION OF THE SHANNON ENTROPY; K.A.Innanen (Calgary Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-04-11; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Multiple scattering and intrinsic friction both contribute to the attenuation of seismic waves, and are difficult to distinguish in seismic experiments. In this paper, we will examine attenuation using theoretical tools that put scattering and friction on more or less an equal footing. Multiple scattering is, after all, a process that increases the disorder of mechanical motions in a continuum. If it occurs well below the resolution of an experiment, the energy it carries is, in a sense, classifiable as thermal. The Shannon entropy, defined on snapshots of a propagating wave, is a measure of disorder in something like the above sense. Its rate of monotonic increase, as a wave experiences either or both of multiple scattering and attenuation, may be a useful means to quantify intrinsic and extrinsic Q. Synthetic experiments and a field VSP data set appear to support this idea. (Longer abstract available)

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1177486 RUBIALES FIELD -- GEOPHYSICS
LOW-FREQUENCY PASSIVE SEISMIC CASE STUDY IN THE LLANOS BASIN; Y.Araujo, K.Johnson and R.Habiger (Pacific Rubiales Energy; Spectraseis).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177487 SABAH -- GEOPHYSICS
IMAGING BLACK POND: FIRST BROADBAND CIRCULAR SHOOTING SURVEY IN MALAYSIA WITH SIMULTANEOUS DEPLOYMENT OF TWO ADVANCED ACQUISITION TECHNIQUES; S.K.Chandola, T.Velayatham, L.C.Foo, M.Tham, K.H.Ho, N.Mahmud, S.Kumar and L.C.Teck (Petronas Carigali Sdn Bhd; WesternGeco).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P2.2; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

The quality of surface seismic imaged data depends on many factors. The images can be very poor if the survey is located in an area characterized by complex overburden and structural setting. In addition, conventional data acquisition and processing methods may not be adequate to address the challenges posed by the subsurface geology and geophysical complexities. The integrated approach of survey design and modeling, unique acquisition techniques, and advanced data processing workflows can help address these challenges. The case study presented here is one of the first to seamlessly deploy two of the most cutting edge acquisition technologies concurrently: (1) the circular shooting technique to extend the azimuth sampling; and (2) the constant-gradient slant-cable towing technique, whereby the streamer depths are shallow at the front and deep at the back to exploit the diversity in streamer notches to extend the bandwidth sampling. By doing so, it not only eliminates the need to acquire the survey twice, but also enables one to realize the benefits offered by both technologies simultaneously. (Longer abstract available)

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1177488 SALT STRUCTURE -- GEOPHYSICS
EFFICIENT AND ACCURATE THREE-DIMENSIONAL IMAGE CONSTRUCTION OF THE DEEP SUBSURFACE IN THE AREAS OF COMPLEX SALT TECTONICS [EFICIENTE Y PRECISA CONSTRUCCION TRIDIMENSIONAL DE IMAGENES DEL SUBSUELO EN PROFUNDIDAD EN AREAS DE TECTONICA SALINA COMPLEJA]; R.D.Martinez, K.Sherwood and F.Couttolenc (Petroleum Geo-Services).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 6 pp; In Spanish)

To construct three-dimensional images of the deep subsurface requires two basic steps: (1) the development of an accurate model of interval velocities as a function of depth, and (2) three-dimensional migration of pre-stack seismic data in depth. Step 1 is intensive in as far as seismic and geological interpretation is concerned. Step 2 usually requires considerable computational capacity. The two steps have to undergo iterations until converging to a velocity model plausible and consistent with the structural geological model of the subsurface and the seismic depth image is of high quality. When both steps are performed conventionally, they take considerable time to such an extent that the results are not very useful in exploratory decision-making or providing timely and accurate drilling locations, consequently increasing exploration risk. In this paper, we present a methodology based on the method of three-dimensional migration BEAM. This method combined an efficient three-dimensional tomographic method that allowed us to quickly iterate during the construction of the velocity model exploiting the speed and accuracy of three-dimensional BEAM migration.

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1177489 SAUDI ARABIA -- GEOPHYSICS
3D SEISMIC-GRAVITY SIMULTANEOUS JOINT INVERSION FOR NEAR SURFACE VELOCITY ESTIMATION; D.Colombo, D.Rovetta, E.Sandoval Curiel, R.E.Ley, W.Wang and C.Liang (Saudi Aramco; GeoTomo).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-01-06; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

A novel 3D simultaneous joint inversion scheme for gravity and seismic travel time data is developed to solve for near-surface complex velocity distributions. The method incorporates industry-standard gravity and travel time inversion techniques while the joint inversion problem is solved by the introduction of various regularization functions about the model such as a priori parameter distribution information, solution-space bounds, structural similarity via cross-gradient constraints and rock physics relations. The effectiveness of our joint inversion is demonstrated against a synthetic model representing a complex pattern of near-surface anomalies incorporating low and high velocity and density bodies. Results demonstrate the superiority of our approach where the shallow anomalies are better reconstructed by the joint inversion rather than that obtained by the single-domain inversions. The developed algorithm is tested with real data from Saudi Arabia acquired over a wadi structure. The results show a significant uplift of the time stack using the seismic-gravity joint inversion velocity model. The developed methodology is part of a multi-geophysics platform for near-surface velocity model building in complex geology scenarios. (Longer abstract available)

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1177490 SECONDARY REFLECTION -- GEOPHYSICS
INCLUDING SECONDARY ILLUMINATION IN SEISMIC ACQUISITION DESIGN; A.Kumar and G.Blacquiere (Delft Univ Technol).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P1.4; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

A subsurface image obtained from seismic data is influenced by the acquisition geometry, as it contains an acquisition footprint which can obscure the true reflection response of the subsurface. Hence, the acquisition geometry should be designed in such a way that it allows high-quality images and fulfils the criteria for reservoir characterization. A comprehensive and quantitative assessment of 3-D acquisition geometries, taking into account the effects of the overburden, is provided by the so-called focal beam analysis method. Both the resolution and the amplitude accuracy can be estimated. So far, the primaries-only source wavefield is taken into account by this method. As using multiples in imaging and characterization is an emerging technology, it is important to analyze their significance in acquisition geometry design as well. In this paper, the benefit of including surface-related multiples in acquisition geometry design through the focal beam method is analyzed. This analysis is important as the multiples may illuminate the subsurface from other angles than primaries, leading to a higher resolution at the desired target location. The concept of a secondary source beam (related to surface multiples) similar to a primary source beam (related to primaries) is formulated. (Longer abstract available)

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1177491 SEISMIC ATTRIBUTE ANALYSIS -- GEOPHYSICS
EXPLORATION THROUGH OPTIMIZATION OF SEISMIC INFORMATION: CASE STUDY - SEISMIC ATTRIBUTES [EXPLORACION A TRAVES DE LA OPTIMIZACION DE LA INFORMACION SISMICA: CASO ESTUDIO - ATRIBUTOS SISMICOS]; C.Dongo and V.Ramirez (Halliburton; Ecopetrol).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 4 pp; In Spanish; Abstract only)

[For information only - meeting paper abstract]

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1177492 SEISMIC DATA PROCESSING -- GEOPHYSICS
TENSOR-BASED METHOD FOR REPRESENTATION, ANALYSIS, AND RECONSTRUCTION OF SEISMIC DATA; M.Imhof, P.Dimitrov and J.P.Kaufhold.. U.S. 2013/0,090,857A1, p. 4/11/2013, f. 8/17/2012 (Appl. 588,780), pr. U.S. 10/6/2011 (Appl. 61/544,062) (G01V-0001/30; G06F-0019/00). (12 pp)

A method for representing seismic data as a spatially varying, second-order tensor field is disclosed. The spatial relationships expressed in these tensors are exploited to link, classify, or separate neighborhoods; or to infer global or relational properties among them, thereby suggesting geobodies despite a noisy background. The tensors may be decomposed into their fundamentals that may either be used directly as derivative datasets or attributes, or may be used to facilitate linkage, classification, or separation of neighborhoods or analysis of linkage patterns. Decomposition may be by eigenvalues, with the eigenvalues used to define attributes called ballness, plateness and stickness. Alternatively, connections may be made between points in the data where the tensor has been computed, called tokens, based on tensor voting and polarity. The connections may also be based on a distance measure between tokens.

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1177493 SEISMIC DATA PROCESSING -- GEOPHYSICS
STACKING ON OCO TRAJECTORIES; T.A.Coimbra, A.Novais and J.Schleicher (Campinas State Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-06; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

We introduce a data-driven stacking technique that transforms 2D/2.5D prestack multicoverage data into a common-offset (CO) section. Similarly to the CMP and CRS stacks, this new method does not rely on an a priori velocity model but provides velocity information itself. The original offset-continuation-operation (OCO) method is a seismic configuration transform designed to simulate a seismic section as if obtained with a certain source-receiver offset using the data measured with another offset. Since an OCO depends on the velocity model used in the process, it can be combined with stacking techniques for a set of models, thus allowing for the extraction of velocity information. The algorithm is based on so-called OCO trajectories, which are related to the concepts of image waves and velocity rays. We theoretically derive the OCO trajectories from the kinematic properties of OCO image waves that describe the continuous transformation of the common-offset reflection event from one offset to another. Based on OCO trajectories, we then formulate a horizon-based velocity analysis method, where root mean square (RMS) velocities and local event slopes are determined by stacking along event horizons. A numerical example demonstrates the feasability of the method. (Longer abstract available)

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1177494 SEISMIC DATA PROCESSING -- GEOPHYSICS
TIME-DEPTH CONVERSION METHODS: ANALYSIS AND DISCUSSION OF RESULTS IN STRUCTURALLY COMPLEX MODEL [METODOS DE CONVERSION TIEMPO-PROFUNDIDAD: ANALISIS Y DISCUSION DE RESULTADOS EN UN MODELO ESTRUCTURALMENTE COMPLEJO]; J.C.Vega D. and A.Mora (EAFIT Univ; Ecopetrol).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 4 pp; In Spanish; Abstract only)

[For information only - meeting paper abstract]

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1177495 SEISMIC EXPLORATION -- GEOPHYSICS
BEST ENVIRONMENTAL PRACTICES FOR SEISMIC EXPLORATION IN TROPICAL RAINFORESTS; D.Westlund and M.Thurber (Gran Tierra Energy Inc; Walsh Environment Engineer).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 2 pp; Abstract only)

[For information only - meeting paper abstract]

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1177496 SEISMIC RECORDING -- GEOPHYSICS
NEW ASPECTS IN SEISMIC SURVEY DESIGN; N.Moldoveanu, R.Fletcher, A.Lichnewsky, D.Coles and H.Djikpesse (WesternGeco; Schlumberger Doll Research).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P1.5; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

In recent years, new methods and tools were developed in seismic survey design to address the increasing complexity of geophysical and geological problems that seismic exploration is faced with. In this paper, we discuss three of these new developments: the application of point-spread functions for seismic resolution analysis, seismic survey design based on Bayesian methodology, and the generation of the seismic response for a fractured reservoir using 3D elastic general anisotropic finite-difference modeling. We demonstrate that these methods can be used effectively for seismic survey design. (Longer abstract available)

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1177497 SEISMIC RECORDING -- GEOPHYSICS
IMPROVING LAND SEISMIC FIELD CREW SAFETY ON FIELD OPERATIONS IN HAZARDOUS AREAS OF THE WORLD THROUGH THE USE OF HIGHLY ACCURATE SATELLITE STEREO TOPOGRAPHIC MAPPING; G.Mitchell (PhotoSat).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P2.8; Available at http://www.seg.org as of 10/29/2013; 3 pp; Expanded abstract)

Highly accurate stereo satellite topographic mapping reduces the exposure of seismic field personnel to hazardous situations and environments by significantly reducing the amount of field scouting and surveying. Stereo satellite topographic mapping can be acquired anywhere in the world, including the no fly zones of Iraq. On seismic projects in the rugged terrain in Kurdistan, detailed satellite topography has been used to differentiate vibroseis and dynamite seismic source points in survey planning, reduce field scouting of vibroseis access routes, and to quality inspect and correct seismic source and receiver point survey data. Stereo satellite topographic mapping accuracies of better than 50 cm in elevation are achieved through the application of geophysical processing methods of noise attenuation, signal enhancement and cross correlation, originally developed for seismic processing, to extracting topography from 50 cm resolution stereo satellite photos. These topographic mapping accuracies have been confirmed by comparison to tens of thousands of ground survey points. (Longer abstract available)

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1177498 SEISMIC STREAMER -- GEOPHYSICS
METHOD AND SYSTEM OF MARINE SURVEY; G.H.Sykes, asr. (PGS Geophysical AS).. U.S. 2013/0,088,937A1, p. 4/11/2013, f. 10/5/2011 (Appl. 253,201) (G01V-0001/38). (19 pp)

The various embodiments of a marine survey include both methods and systems. At least some of the illustrative embodiments include (1) deploying a spreader structure from vessel into a body of water, wherein the spreader structure defines a deployed width of one kilometer or more; (2) coupling a plurality of sensor streamers to the spreader structure; and (3) towing the plurality of sensor streamers through the water, where the horizontal separation between the sensor streamers is at least partially maintained by the spreader structure. The spreader structure provides horizontal separation sensor streamers without the use of a tensioning force applied to the spreader structure.

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1177499 SEISMIC STREAMER -- GEOPHYSICS
DEMODULATING A WAVEFIELD; R.Ferber.. U.S. 2013/0,083,625A1, p. 4/4/2013, f. 9/29/2011 (Appl. 249,005) (G01V-0001/38; G10K-0011/00). (13 pp)

A technique includes (1) demodulating a wavefield; (2) generating spatial samples of the demodulated wavefield; and (3) processing the samples to extract spectral components of the wavefield based at least in part on the demodulating.

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1177500 SEISMIC STREAMER -- GEOPHYSICS
OPTIMIZATION OF THE STREAMER SHAPE IN VARIABLE-DEPTH STREAMER ACQUISITIONS; R.Soubaras (Cie Generale Geophysique).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 2.8; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

Variable-depth streamer acquisition is an acquisition technique aimed at achieving the best possible signal-to-noise ratio at low frequencies by towing the streamer very deeply, but by using a depth profile varying with offset in order not to limit the high frequency bandwidth. In this paper, we describe the methodology used to optimize the streamer depth profile for each variable-depth survey. The aim of the streamer profile is to ensure maximum notch diversity after imaging, thus ensuring the best possible pre- and post-stack deghosting. We first describe how a stretch effect affects the shape of the receiver ghosts in the migrated domain. Then, a methodology based on synthetic modeling and imaging in a 1D velocity model is described in order to assess the suitability of a streamer depth profile to achieve broadband imaging of reflectors situated in the range of interest for the survey. (Longer abstract available)

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1177501 SEISMIC WAVE PROPAGATION -- GEOPHYSICS
PHYSICAL MODELING STUDYING THE TRAVEL TIMES AND REFLECTION POINTS OF SH-WAVES REFLECTED FROM TRANSVERSELY ISOTROPIC MEDIA WITH A TILTED SYMMETRY AXIS; Y.F.Chang, C.H.Chang, L.C.Sun and C.L.Chung (National Chung Cheng Univ; National Chiayi Univ; Nankai Inst Technology).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-1843; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177502 SEISMIC WAVE SOURCE -- GEOPHYSICS
ON THE USE OF A SEISMIC SENSOR AS A SEISMIC SOURCE; D.F.Halliday, T.Fawumi, J.O.A.Robertsson and E.Kragh (Schlumberger Gould Res; ETH Zurich).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 1.4; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

We investigate the use of seismic sensors as small seismic sources. A voltage signal is applied to a geophone that forces the mass within the geophone to move. The movement of the mass generates a seismic wavefield that is recorded with an array of geophones operating in the conventional sense. We observe higher-frequency (25 Hz and above) surface and body waves propagating from the geophone source at offsets of tens of meters. We further demonstrate the use of a more powerful geophone-like source allowing seismic waves to be observed at longer offsets. Potential developments and future applications are discussed, including the integration of small sources into an acquisition system, near-surface characterization using small sources, and the determination of receiver locations through inversion of small source recordings. (Longer abstract available)

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1177503 SHETLAND ISLANDS -- GEOPHYSICS
GHOST-FREE IMAGING COMBINING SYNCHRONIZED MULTILEVEL SOURCE AND VARIABLE-DEPTH STREAMER; R.Sablon, T.Payen, H.Tonchia, R.Siliqi, X.Labarre, N.Salaun and Y.Le Men.. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 2.7; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

Variable-depth streamer acquisition is a key solution to provide broadband marine seismic data from 2.5 Hz to source ghost notch, due to an optimized receiver depth distribution. This receiver-side technique can be efficiently combined to a synchronized multilevel source, which allows canceling the source ghost notch and extending the recorded bandwidth to 200 Hz. Moreover, due to accurate gun synchronization, the recorded data can be processed directly with the flow already developed for variable-depth streamer, with some necessary changes to better handle the extra-high frequencies. Such combined techniques have been successfully tested and applied in various 2D and 3D cases, in both shallow and deep water environments. (Longer abstract available)

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1177504 SIBERIAN LOWLAND -- GEOPHYSICS
NEW DATA ON THE STRUCTURE OF THE KAS BLOCK IN THE BASEMENT OF THE WEST SIBERIAN PLATE; T.N.Kheraskova, S.A.Kaplan, V.P.Bubnov and V.I.Galuev (Russian Academy Sciences; All Russia Research Inst; Severo-Zapad).. GEOTECTONICS v.47, no.2, pp.101-114, March 2013. (ISSN 1556-1976)

A new concept concerning the structure and stages of evolution of the Kas Block of the West Siberian Plate is stated in this paper. The Kas Block is traditionally considered to be a subsided western margin of the Siberian Platform. The new concept is based on the results of the interpretation of the geophysical data recently obtained along the reference and regional profiles in this territory. The geological interpretation of the deep dynamic sections obtained by reprocessing of the CDP seismic reflection records has been performed for the first time. The structural features of the Kas Block, as well as the character of its junction with the Siberian Platform and the Paleozoic framework, are discussed. The tectonic scheme of the territory and the scheme of the pre Late Devonian surface of the Kas Block have been compiled. The Baikalian age of the basement of the Kas Block is substantiated. The Salairian allochthonous ophiolite–basalt tectonic nappe is localized for the first time within the sedimentary cover of the Kas Block. The available information allowed us to reconstruct the development of the western margin of the Siberian continent in the Riphean and Early Paleozoic before and after the Baikalian Orogeny, respectively.

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1177505 SIBERIAN PLATFORM -- GEOPHYSICS
SEISMOGEOLOGICAL STRUCTURE MODEL OF VENDIAN TERRIGENE DEPOSITS OF CENTRAL AREAS OF NEPSKO-BOTUOB ANTECLISE; V.A.Kontorovich, S.A.Moiseyev, M.Yu.Skuzovatov and A.S.Sledina.. GEOLOGIYA NEFTI I GAZA (OIL AND GAS GEOLOGY) no.1, pp.20-25, 2009. (ISSN 0016-7894; 4 refs; In Russian)

The article defines more exactly the seismogeological model of the structure of Vendian terrigene deposits of central areas of the Nepsko-Botuob anteclise, which is one of the most studied, and prospective oil and gas territories within the Siberian platform. Results of complex analyses of time sections and correlation schemes are described. Thickness increase of Vendian terrigene complex is sharply defined on time seismic sections as a wave packet interval increase controlled by R0 and M horizons; In the course of Vendian terrigene productive horizons correlation revealed a wide distribution of Nepian productive beds B10 and B13. The bed B14 relating to Pre-Nepian deposits is zonally developed in areas of maximum thicknesses of Vendian terrigene complex depicted on time sections as well. Thickness increase of Vendian terrigene complex is accompanied by appearance of additional sandy horizons in the section. The total thicknesses of Vendian sandstones and complex's thicknesses are interrelated. Thickness of complex is determined by wave fields analysis results, therefore, this task could be correctly solved also by results of time seismic sections analysis.

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1177506 SINU BASIN -- GEOPHYSICS
MAJOR GEOLOGICAL FEATURES OF THE SINU BASIN FROM SEISMIC INTERPRETATION [PRINCIPALES CARACTERISTICAS GEOLOGICAS DE LA SUBCUENCA DEL SINU A PARTIR DE INTERPRETACION SISMICA]; M.Caro P. and C.A.Rey (Geokinetics Int Inc; Agencia Nac Hidrocarburos).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 11 pp; In Spanish)

The ANH, in order to increase the geological and geophysical knowledge of the Sinu Subbasin, recently contracted the acquisition and integration of 300 kilometers PSTM and PSDM seismic data along with new 2D gravimetric, magnetometry, gas analysis and surface geology data to define the main structural-stratigraphic features and hydrocarbon exploration opportunities.

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1177507 SLICK RANCH GAS FIELD -- GEOPHYSICS
USING NEW TECHNIQUES TO EXTRACT STRATIGRAPHIC INFORMATION FROM SEISMIC DATA IN TIGHT GAS RESERVOIRS; H.Correa, D.Fa and D.Potter (Shell Exploration & Prod; Shell Int Explor Prod Inc; Shell Int Explor & Prod BV).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 8 pp)

In tight sands in South Texas, seismic data are mainly used to define the structural framework, whereas the amplitudes are rarely used since they do not provide information about fluids. The amplitudes are not effective in tight sands, since the matrix framework is so stiff and the permeability so low that the acoustic response does not change significantly in the presence of compressible fluids like gas. However, the stratigraphic information that seismic amplitudes can provide is often overlooked. In this report, we describe methods we have used to highlight the stratigraphic detail that can be extracted from seismic data. This paper focuses on two techniques that have been used in an effort to improve 3D visualization and to enhance the quality of the information that can be extracted from the seismic data. Spectral decomposition is a technique that separates the seismic data into many frequency slices, enhancing the imaging of sub-seismic features, particularly channels. Sculpting is a novel technique that isolates a region of interest within a volume of data, enabling quick and efficient visualization of stratigraphic intervals. It captures stratigraphic subtleties that are not exactly conformable to the selected horizon.

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1177508 SOLDADO OIL FIELD -- GEOPHYSICS
SEISMIC MULTI-ATTRIBUTE INTEGRATION FOR LEADS GENERATION: SOUTHWEST SOLDADO FIELD, GULF OF PARIA, TRINIDAD AND TOBAGO; J.Sierra, M.Bonilla, H.Campos, W.Marin, D.Joseph and S.Cardinez (IGS Services & Consulting; Petrotrin Trinmar; Petrotrin).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 7 pp)

A methodology of integration of multiple seismic attributes is proposed to generate new leads in South West Soldado Field, located offshore Trinidad's Southern Basin. The reservoirs belong to the Cruse formation (Miocene age) containing accumulations of light oil (22-33 API) and heavy (18 API) in turbidites deposits that vary from 50-300 feet of net sand. The methodology in this study was based on the use of seismic inversion, both acoustic and elastic, and spectral decomposition techniques, simultaneously integrated with structural geology information and concepts of seismic stratigraphy to identify structural and stratigraphic features associated with potential new reservoirs in the field. The rock physics feasibility show that the Vp/Vs ratio is an attribute that works quite well for discriminating lithology in the area for the Cruse formation; on the basis of these results different seismic attributes volumes, such as the Vp/Vs ratio, acoustic impedance, Poisson's ratio and elastic impedance at 30 degrees, were obtained. Simultaneously, the spectral decomposition analysis allowed the interpretation of stratigraphic features such as meander channels and fans related to shallow marine to deep marine depositional environments. In seismic sections there was found evidence of possible amalgamated channels and lobes or fans of clay, which in some cases were verified with information from wells.

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1177509 SOUTH AMERICA -- GEOPHYSICS
RECENT ADVANCES IN MARINE ACQUISITION TECHNOLOGY AND THEIR APPLICATION TO BASINS OFFSHORE SOUTH AMERICA; P.Watterson, R.Ross and S.Whidden (WesternGeco).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 4 pp)

Modern algorithms such as reverse time migration and full waveform inversion are enabling a new generation of answer products by correctly handling the complexity of energy propagation in these settings. Additionally, developments in acquisition technology have enabled specific solutions to these issues. These include the ability to illuminate complex geology by acquiring full azimuth data by steering the vessel in a helix pattern; also the possibility to acquire data with multiple cables depths and so wider bandwidth; and the ability to repeat source and receiver locations to deliver a higher fidelity 4-D response to better monitor the reservoir. Such techniques provide the quality of input data demanded by modern, high fidelity processing techniques. These answer products have in part been enabled by advances such as the ability to steer sources and streamers, and to record and process single sensor measurements. In this paper we see how these technologies have been enabled, some recent results, and how these solutions may be applied in South America as well as showing advances in environmental issues, regarding emissions, efficiencies and their impact on marine fauna.

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1177510 SPECTRAL DECOMPOSITION -- GEOPHYSICS
THE ACCURACY OF SPECTRAL DECOMPOSITION METHODS; J.A.Beckwith (Leeds Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-06-01; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

In the context of exploration seismology, the resolution of spectral decomposition techniques has been extensively reviewed but the accuracy of these methods has only been discussed qualitatively in regards to the resolution. Using a marginal condition the fundamental accuracy of the matching pursuit decomposition, Stockwell transform, Wigner-Ville distribution and reduced interference distribution are quantified. A cut-off for what can be deemed an acceptable decomposition method is set at 0.3 normalized residual energy, the normalized residual energy for the matching pursuit decomposition is 0.59. Used in conjunction with a PSQI method, the Stockwell transform provided the most accurate determination of the quality factor, Q, of a synthetic shot gather, recovering a Q value of 50.4±3 from a synthetic shot gather with an attenuative layer of quality factor 50. It is recommended that the best spectral decomposition method for a specific task be identified through rigorous testing of spectral decomposition methods with synthetic data. (Longer abstract available)

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1177511 SPECTRAL DECOMPOSITION -- GEOPHYSICS
SPECTRAL DECOMPOSITION BY SYNCHROSQUEEZING TRANSFORM; J.Han, R.H.Herrera and M.van der Baan (Alberta Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-06-02; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

The synchrosqueezing transform (SST) is a wavelet-based time-frequency reassignment method, which has a grounded mathematical foundation. It produces a well defined time-frequency representation allowing the identification of instantaneous frequencies to highlight individual components. The field data examples demonstrate the high time-frequency resolution feature of SST, therefore rendering this technique as promising for seismic processing and interpretation. (Longer abstract available)

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1177512 SUBSALT -- GEOPHYSICS
ILLUMINATION USING RTM AND KIRCHHOFF DEPTH PROCESSING TO ENLIGHTEN THE GEOSCIENTISTS IN SUBSALT DOMAIN; G.Fabre, J.Gaillot, M.Collin and S.Lalande.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

In deep offshore exploration, seismic imagery is generally the key to better understanding how complex turbidite depositional systems are organized. In compressive domains, salt-cored anticlines or thrusts associated with allochthonous salt diapirs often create potential traps for hydrocarbons, but also induce great challenges to imagery teams and interpreters. Therefore, seismic processing algorithms are continuously improved and fine-tuned to increase the image quality, to track all sedimentary information, to remove noise, and to relocate the signal at the right place. Tailor-made workflows are built for each project, in order to represent the salt content and track the weak signals to give to interpreters the best datasets possible. In this example, a common azimuth wave equation (CAWE) reprocessing has been challenged six years later by a most recent state-of-the-art reprocessing using Kirchhoff and reverse time (RTM) algorithms for migrations, with an iterative process on velocity model building, and involving interpretation geoscientists in each step. (Original not available from T.U.)

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1177513 SUBSALT -- GEOPHYSICS
SUBSALT INTERFEROMETRIC IMAGING USING WALKAWAY VSP AND OFFSET FREE CABLE GEOMETRY: A MODELING STUDY; C.Erdemir and A.Dev (ION Geophysical Corp).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P1.3; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

This study suggests that the sub-salt image obtained from a walkaway vertical seismic profiling data could be substantially improved if an offset free cable is added to the acquisition geometry. The proposed acquisition design uses the same acquisition parameters and the same source boat. No additional source effort is needed The current study indicates that the seismic interferometry with prestack reverse time migration is a practical tool for simultaneous imaging of walkaway VSP and offset free cable data to help enhance the sub-salt image. We tested our data processing and imaging approach on a finite difference modeling data. The model has steeply dipping beds under the salt. The subsurface properties of density and velocity are varied horizontally and vertically. The VSP receivers are below the salt, and a free cable is located at 4,000 ft away from the borehole. The interferometric imaging approach on the composite data yielded successful imaging of the steeply dipping beds under the salt. The imaging of the layers from the composite data have more lateral illumination compared to imaging of the VSP only data. The salt boundaries and the dipping layers below the salt are clearly imaged. (Longer abstract available)

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1177514 SYNTHETIC APERTURE RADAR -- GEOPHYSICS
SYSTEMS AND METHODS FOR SEISMIC SURVEY; R.J.Rikoski.. U.S. 2013/0,083,621A1, p. 4/4/2013, f. 5/7/2012 (Appl. 466,075), pr. U.S. 5/6/2011 (Appl. 61/483,549) (G01V-0001/38). (36 pp)

The systems and methods described herein relate to systems and methods for synthetic aperture sonar (SAS) or radar including seismic surveying.

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1177515 TALIMU BASIN -- GEOPHYSICS
PRELIMINARY RESEARCH ON THE 3C3D EXPLORATION TECHNOLOGY APPLIED TO FRACTURED-CAVE RESERVOIRS; Y.Wang, J.Yang, N.Wang, Z.Jiang, G.Gao and H.Su (BGP).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P2.7; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

In this study, we use difference characteristics between the transmission modes of PP and PS waves, to generate the converted 3D seismic wave, which is then applied to exploration in the karst reservoir development zone of the northern Tarim Basin. A 3D recording geometry is designed based on the CMP and CCP bins and the stacked mutual correlation of the common geophone stations, which are controlled by PP and PS wave structure times, and are used to calculated the converted wave statics. This process improves the converted wave static correction method. The research results show that both the converted wave seismic data and the P-waves data can resolve the shoestring reflection characteristics of the dissolved cavern reservoir. (Longer abstract available)

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1177516 TALIMU BASIN -- GEOPHYSICS
FLUID IDENTIFICATION BASED ON P-WAVE FREQUENCY-DEPENDENT AZIMUTHAL AVO METHOD IN FRACTURED MEDIA; Z.D.Sun, P.Yang, X.Y.Zhou, J.Tian and J.F.Han (China Univ Petroleum; Tarim Oilfield Ltd).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-02; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Seismic anisotropy is relevant to frequency. When fractures in reservoirs are saturated with different fluid types (oil, gas and brine), the variation rates of anisotropy vs. seismic frequency (which is called anisotropy dispersion) are different. Thus, anisotropy dispersion can be used to distinguish different fluid types in fracture. In this paper, P-wave frequency-dependent azimuthal AVO inversion algorithm is proposed and applied to real seismic data. The studies focus on the analysis of P-wave anisotropic dispersion response for different fluid saturation. Continuous wavelet transform is employed for spectral decomposition, aiming at well time-frequency localization. Real data application indicates that the magnitude of P-wave anisotropy dispersion of brine is far stronger than that of oil and gas in fractures. Our study firmly proves that the method aimed at calculating the P-wave anisotropic dispersion for different fluids saturation is valid and reliable, and this brings us the confidence to discriminate fluid by the calculated anisotropic dispersion values in fractured reservoir. (Longer abstract available)

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1177517 TEXAS -- GEOPHYSICS
USING MICROSEISMICITY TO UNDERSTAND SUBSURFACE FRACTURE SYSTEMS AND INCREASE THE EFFECTIVENESS OF COMPLETIONS: EAGLE FORD SHALE, TEXAS; J.Detring and S.Williams-Stroud.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Existing natural fractures often have a significant impact on both stimulation and production of oil and gas wells. Effective exploitation of unconventional reservoirs requires the understanding of the local tectonic history and the present-day stress regime. Signal strength, high-quality reflection seismic, microseismic imaging, and moderate structural complexity of the liquids-rich gas and tight-oil Eagle Ford shale make it an ideal place to study hydraulic fracturing in tight rocks. Microseismic monitoring results showed clear structural trends relating to rock failure mechanisms and reactivation of existing faults and fractures. These results provided critical information to the operator for optimizing the hydraulic fracture design. Microseismic data collected using a surface array allowed the full geometry of the result to be viewed without directional bias. The geometry of the trends in microseismicity related to the hydraulic fracture stimulation were representative of the true geometry of the structure. (Original not available from T.U.)

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1177518 THREE DIMENSIONAL SEISMIC -- GEOPHYSICS
3D DESIGN WITH PRESTACK TRACE INTERPOLATION: A COMBINED MULTI-SURVEY SEISMIC ACQUISITION CASE STUDY; A.Crook, B.Nemeth, C.Escalante, Y.Zheng, L.Ross and K.Millis (OptiSeis Solutions Ltd; BHP Billiton; Geo-X Exploration Svcs Inc).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P1.8; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

In this project, the feasibility of acquiring coarse-binned reconnaissance 3D surveys followed by target-specific infill 3D surveys was investigated by decimating and then interpolating a regularly sampled orthogonal 3D. In total, 11 decimated datasets and two combined sparse/infill datasets were reprocessed with and without prestack trace interpolation (5D interpolation). Comparisons made with the original input dataset indicate that depending on the target objectives, selective sparse acquisition geometry combined with 5D interpolation may be used for reconnaissance 3D exploration surveys. Furthermore, by designing target specific selective infill surveys with offset and azimuth distributions that complement the sparse geometry and then applying 5D interpolation to the merged sparse/infill surveys, data comparable to a regularly sampled survey was observed. (Longer abstract available)

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1177519 TURBIDITE -- GEOPHYSICS
A LOBE STORY, THROUGH SPECTRAL DECOMPOSITION; G.Fabre, V.Delhaye-Prat and P.Imbert.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Many hydrocarbon discoveries have been made within turbidite plays during the last decades, and intensive studies have greatly improved concepts on turbidite sedimentology. Deep offshore channelized fairways are now well known and documented. Terminal lobes are gaining more attention and are far more complex than originally thought. Therefore, more studies of detailed internal architecture are needed to tackle the heterogeneity issues specific to such objects. The semi-regional study of a complex turbidite system presented in this paper highlights the possibility to predict the distribution of lithological heterogeneities in terminal lobes, as well as possible disconnection by interlobe deposits. Those two points are critical when evaluating lobe reservoirs in an exploration process. The Congo margin is affected by long-term gravity sliding of the entire Tertiary sedimentary sequence. At the toe of the system, in the deep offshore domain, mini-basins are created between compressive structures (salt-cored anticlines or thrusts associated with salt diapirs). (Original not available from T.U.)

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1177520 UNITED KINGDOM -- GEOPHYSICS
INDUCED SEISMICITY AT PREESE HALL, UK: A REVIEW; T.O'Toole, J.P.Verdon, J.H.Woodhouse and J.M.Kendall (Oxford Univ; Bristol Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-01-11; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Hydraulic fracturing activities during shale gas exploration at Preese Hall, near Blackpool, UK, induced a series of anomalously large microseismic events, including two that were felt at the surface. The unexpected nature of this seismicity meant that microseismic monitoring of these operations was limited, with only two surface stations being deployed after an M-l 2.3 event was detected by the British Geological Survey's regional seismic network. The small size of the available dataset means that we must try and extract as much information from it as possible if we wish to fully understand what went on, and how risks might be reduced in the future. Towards this end, we have used waveform inversion to determine moment tensors for a number of the induced events; events predominantly occurred with a pure strike-slip mechanism. To investigate the state of stress in the sub-surface from a different direction, we have also performed shear wave splitting analyses of the available dataset. These two techniques yield principle horizontal stress orientations that are in good agreement with each other, and that are also consistent with in situ measurements. (Longer abstract available)

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1177521 VELOCITY ANISOTROPY -- GEOPHYSICS
MOVEOUT APPROXIMATION FOR COMPRESSION WAVES IN LAYERED ORTHORHOMBIC MEDIUM; I.Ravve and Z.Koren (Paradigm Geophysical).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-07; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

Orthorhombic models comprise subsurface anisotropy caused by vertical azimuthally aligned fractures and layering, or by two orthogonal sets of vertical fractures, with or without layering. In this paper, we derive new relations for hyperbolic and non-hyperbolic moveout approximations for pure compression waves, considering a 1D model that consists of a set of orthorhombic layers. The layers have a common vertical axis but different orientations of horizontal orthorhombic axes. For 1D models, the azimuth of the phase velocity is the same for all layers, while the azimuths of the ray velocity are generally different. We extend the existing studies on moveout in an orthorhombic model, accounting for the azimuthal deviation between the phase and ray velocities. We then formulate the azimuthally-dependent NMO velocity for a package of layers. Finally, we compare the derived full quartic moveout term with its acoustic approximation, and verify the accuracy of the approximation vs. exact analytical ray tracing. (Longer abstract available)

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1177522 VELOCITY MODEL -- GEOPHYSICS
HOW SUCCESSFUL IS THE USE OF A CONSTANT FUNCTION OF SPEED REPLACEMENT IN SEISMIC DATA PROCESSING? [QUE TAN ACERTADO ES EL USO DE UNA FUNCION CONSTANTE DE VELOCIDAD DE REEMPLAZAMIENTO EN EL PROCESAMIENTO DE DATOS SISMICOS?]; J.Mora and C.Pedraza (PETROSEIS Ltda).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 5 pp; In Spanish; Abstract only)

[For information only - meeting paper abstract]

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1177523 VIBROSEIS TM -- GEOPHYSICS
CHARACTERIZING THE VIBRATOR CAPTURED GROUND MASS SYSTEM USING FINITE ELEMENT ANALYSES; Z.Wei and T.F.Phillips (INOVA Geophysical Ltd; Dawson Geophysical Co).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 4.1; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

Vibroseis has become the most widely used method in land data acquisition. When the vibrator baseplate is coupled with the ground, the ground seen by the baseplate is captured and becomes a part of source. Many researchers have developed methods to estimate this captured ground mass system. However, no one gives a quantified geometry of this captured ground mass system. This paper provides a theoretical study using a finite element analysis model to quantify this captured ground mass system. Meanwhile, through the finite element analysis model, the ground roll is visualized. (Longer abstract available)

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1177524 VIBROSEIS TM -- GEOPHYSICS
EVALUATING VIBRATOR SPACING, INCLUDING MUTUAL ADMITTANCE INTERACTION EFFECTS; R.H.Brune, M.Yates, C.Liner and L.Bell.. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 4.3; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

There is a long-standing theoretical basis for the interactions between vibrators based on the concepts of mutual admittance. These theoretical interactions particularly indicate significant changes in the amount of Rayleigh wave energy generated as vibrator separation changes. These changes are beyond classical linear superposition source array theory. A simple field test geometry is utilized to assess vibrator interactions. This tests vibrator separation distances in a manner separate from classical linear superposition source array theory. Field data indicate significant variations generally in the manner of those predicted by theory. (Longer abstract available)

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1177525 WESTERN CANADA BASIN -- GEOPHYSICS
DIFFERENTIAL COMPACTION AND ITS SEISMIC ATTRIBUTE EXPRESSION; S.Chopra and K.Marfurt (Arcis Seismic Solutions; Oklahoma Univ).. 75TH EAGE/SPE EUROPEC CONFERENCE (London, UK, 6/10-13/2013) EXTENDED ABSTRACTS 2013. (Paper no.Th-02-16; Available at http://www.earthdoc.org as of 10/29/2013; 5 pp; Abstract only)

With continued burial and overburden, pore sizes are reduced and water is squeezed out of the rocks, reducing the rock volume. Different lithologies have different original porosity, pore shapes, and mineral matrix composition, and thus different response to burial. Lateral changes in lithology give rise to lateral changes in compaction, or simply differential compaction. For this reason, easily-mapped flooding and other surfaces that were originally flat can exhibit measureable, and often significant structural relief. These maps give rise to lateral structural anomalies. Recognition of differential compaction forms a key component in modern seismic geomorphology based interpretation workflows with excellent publications showing the expression of differential compaction on vertical slices. Mapping the 3D expression of compaction features takes considerable time and is thus less well reported and the use of 3D geometric attributes to map compaction features is underutilized. In this paper we illustrate the attribute expression of the more common differential compaction features over channels and carbonate reefs using examples from the Western Canadian Sedimentary Basin. (Longer abstract available)

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1177526 WEST GREENLAND -- GEOPHYSICS
DUAL-STREAMER VESSEL SIMULTANEOUS 3D ACQUISITION IN GREENLAND; M.Makhorin, P.Fontana, N.Podshuveyt, D.St Peter, T.Williams and F.Smit (Polarcus; ION GX Technology; Shell Global Solutions Int).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P2.1; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

A dual vessel 3D towed streamer survey was acquired for a JV operated by Shell Greenland in Baffin Bay, West of Greenland. The survey area was infested by ice and water depths ranged between 280 and 820 m. A number of seismic data acquisition techniques, including the use of two streamer vessels, were combined during this survey in order to ensure that full-fold coverage was achieved in a short acquisition window over the primary preplot area with minimum impact of seismic interference between the vessels on overall data quality. These techniques proved very effective and may be applied in other geographical locations with short time windows available for seismic data acquisition, especially where free movements of streamer vessels are limited due to floating ice. (Longer abstract available)

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1177527 WIDE AZIMUTH -- GEOPHYSICS
IS BROADBAND LAND SEISMIC AS GOOD AS MARINE BROADBAND?; M.Denis, V.Brem, F.Pradalie and F.Moinet (CGG France).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ 4.4; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

New broadband marine solutions have significantly changed marine imaging landscape reaching up to to 6 Octave bandwidth. These solutions are the results of a combination of innovative solutions in the fields of equipment, acquisition and subsurface imaging. Following the same approach, we illustrate that similar improvements are achievable on land. (Longer abstract available)

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1177528 YELLOW SEA -- GEOPHYSICS
LOW-FREQUENCY OPTIMIZED ACQUISITION METHOD FOR PALEOZOIC STRATA UNDER HIGH SHIELDING LAYER: SOUTH YELLOW SEA BASIN EXAMPLE; S.Gao, M.Zhang and F.Xu (Tongji Univ; China Nat Offshor Oil Corp).. 83RD ANNUAL SEG INTERNATIONAL MEETING (Houston, TX, 9/22-27/2013) TECHNICAL PROGRAM 2013. (Paper no.ACQ E-P2.6; Available at http://www.seg.org as of 10/29/2013; 5 pp; Expanded abstract)

The purpose of this study was to obtain good imaging effects by an optimized 2D towed streamer seismic acquisition method in Paleozoic strata under high shielding layer. By analyzing geophysical and geological conditions of our exploration target, we concluded that three key problems caused the poor seismic quality in the objective layer. Thus, relevant target-oriented acquiring parameters including large-scale seismic source energy, deep towed geometries, and long offsets were put forward. This combination method testified that it could increase the low-frequency component of seismic energy which is anti-absorption and easier to propagate to the Paleozoic strata, meanwhile it could reduce the noise such as surge interference and random disturbance, so the signal-to-noise (S/N) ratio in the target zone was raised and the entire seismic section quality was improved. (Longer abstract available)

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DRILLING (WELL)

table of contents list of publications

1177529 BIT BEARING -- DRILLING (WELL)
SPRING ACCUMULATOR BEARING TWIN SEALING RINGS FOR ROLLER CONE BIT; F.Xing.. World 2013/149,358A1, p. 10/10/2013, f. 4/1/2012 (Appl. 1,200,431) (E21B-0010/25). (13 pp; In Chinese)

Disclosed is a bearing seal system for a roller cone bit. The bearing seal system consists of a toothed bearing, a roller cone inner hole, two elastic sealing rings, and a sealing groove, wherein the two elastic sealing rings are mounted back-to-back in the sealing groove; the elastic sealing rings are spring accumulator sealing rings composed of a metal spring inner ring made of stainless steel-type material and a plastic sealing shell. Substances can also be packed in the cross-section of the elastic sealing rings, and the substances to be packed can be selected as silica gel resistant to high temperatures and with a low hardness. An inner flange and inner and outer sealing edges run along the front of the sealing shell. The inner flange is used to fix the spring inner ring, and the tensile force of the spring inner ring presses the inner and outer sealing edges, making it contact two sealing faces of the bearing sealing groove for sealing between the toothed bearing and the roller cone inner hole.

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1177530 BIT TEETH -- DRILLING (WELL)
DIAMOND ENHANCED DRILLING INSERT WITH HIGH IMPACT RESISTANCE; Y.Fang and S.L.Horman, asrs. (Smith International Inc).. Europe. 2,610,426A2, p. 7/3/2013, f. 12/21/2012 (Appl. 12,198,870), pr. U.S. 12/30/2011 (Appl. 61/581,757) and U.S. 12/18/2012 (Appl. 717,865) (E21B-0010/567; E21B-0010/573). (18 pp)

An insert for a drill bit may include a (1) substrate; (2) a working layer of polycrystalline diamond material on the uppermost end of the insert, wherein the polycrystalline diamond material includes a plurality of interconnected diamond grains and a binder material; and (3) an inner transition layer between the working layer and the substrate, wherein the inner transition layer is adjacent to the substrate and wherein the inner transition layer has a hardness that is at least 500 HV greater than the hardness of the substrate.

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1177531 BLOWOUT PREVENTER -- DRILLING (WELL)
BLOW OUT PREVENTER (BOP) CORROBORATOR; T.J.Mallinson, T.O'Donnell and S.Sotskiy, asrs. (Siemens Corp).. U.S. 2013/0,153,241A1, p. 6/20/2013, f. 8/14/2012 (Appl. 585,118), pr. U.S. 12/14/2011 (Appl. 61/570,358) (E21B-0034/04). (16 pp)

Systems and methods supplementing existing management methods to corroborate performance of a blowout preventer for a submerged well are disclosed. The corroborator is located on the blowout preventer and includes a flow meter external to a pipe to measure flow inside the pipe, a pipe joint locator, a ram seal confirmation agent and a dedicated communication connection from the corroborator to a computer topside. Data from at least one sensor topside, which may represent a mud tank level, is also received. The computer calculates a probability that a malfunction related to the well occurs. The computer implements a principal component analysis model of the well based on historical data, to assess a likelihood that a threshold value will be surpassed based on collected sensor data and to generate an alert.

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1177532 BLOWOUT PREVENTER -- DRILLING (WELL)
BLOW OUT PREVENTER (BOP) CORROBORATOR; S.Sotskiy, T.J.Mallinson and T.O'Donnell, asrs. (Siemens AG).. Europe. 2,604,786A2, p. 6/19/2013, f. 12/14/2012 (Appl. 12,197,136), pr. U.S. 12/14/2011 (Appl. 61/570,358) and U.S. 8/14/2012 (Appl. 585,118) (E21B-0021/08; E21B-0033/035; E21B-0033/06). (19 pp)

Systems and methods are provided for supplementing existing management methods for and corroborating condition and performance of a blowout preventer for a submerged well. The corroborator is located on the blowout preventer and includes (1) a flow meter external to a pipe to measure flow inside the pipe; (2) a pipe joint locator; (3) a ram seal confirmation agent; and (4) a dedicated communication connection from the corroborator to a computer topside. Data from at least one sensor topside, which may represent a mud tank level, is also received. The computer is enabled to calculate a probability that a malfunction related to the well occurs. The computer may be configured to implement a principal component analysis model of the well based on historical data, to assess a likelihood that a threshold value will be surpassed based on collected sensor data and to generate an alert. The computer implements instructions to perform steps of the present invention.

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1177533 BLOWOUT PREVENTER -- DRILLING (WELL)
BLOWOUT PREVENTER SEAL ASSEMBLY AND METHOD OF USING SAME; D.A.Jahnke, asr. (National Oilwell Varco LP).. World 2013/155,191A2, p. 10/17/2013, f. 4/10/2013 (Appl. 1,335,990), pr. U.S. 4/10/2012 (Appl. 61/622,426) (E21B-0033/06). (22 pp)

A seal assembly for a blowout preventer of a wellsite is provided. The blowout preventer includes a housing and at least one component operatively connectable to the housing. The housing has a bore and a channel therethrough. A tubular is positionable through the bore and engageable therein. The seal assembly includes a seal plate, a seal carrier, and at least one seal. The seal plate is operatively connectable between the housing and the at least one component of the blowout preventer, and has at least one seal groove extending therein. The seal carrier is disposable about a perimeter of the seal plate, has at least one carrier lip disposable in a seal groove(s), and has at least one seal receptacle. The seal is receivably positionable in the seal receptacle, and in sealing engagement with one of the housing, the component, and combinations thereof.

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1177534 BLOWOUT PREVENTER -- DRILLING (WELL)
BLOWOUT PREVENTER LOCKING DOOR ASSEMBLY AND METHOD OF USING SAME; D.A.Jahnke, asr. (National Oilwell Varco LP).. World 2013/155,200A2, p. 10/17/2013, f. 4/10/2013 (Appl. 1,336,001), pr. U.S. 4/10/2012 (Appl. 61/622,443) (E21B-0033/06; E06B-0005/00). (23 pp)

A locking door assembly, blowout preventer and method are provided. The blowout preventer is for sealing about a tubular extending from a wellbore of a wellsite. The blowout preventer includes a housing having a bore and a channel therethrough. The tubular is positionable through the bore and engageable therein. The blowout preventer also includes a door assembly including a door slidably positionable along an axis of the channel and providing selective access to the channel, and a lock. The lock includes at least one locking member having at least one raised portion extending along the door assembly in a direction transverse to the axis of the channel. The locking member is extendable into at least one corresponding receptacle of the housing and movable therealong between an unlocked and a locked position whereby the door assembly is selectively retractable from the housing.

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1177535 BLOWOUT PREVENTER -- DRILLING (WELL)
BLOWOUT PREVENTER WITH LOCKING RAM ASSEMBLY AND METHOD OF USING SAME; D.A.Jahnke, asr. (National Oilwell Varco LP).. World 2013/155,206A2, p. 10/17/2013, f. 4/10/2013 (Appl. 1,336,010), pr. U.S. 4/10/2012 (Appl. 61/622,458) (E21B-0033/06). (27 pp)

A lock assembly of a blowout preventer is provided. The blowout preventer includes a ram assembly slidably positionable in the channel and engageable with a tubular. The ram assembly includes a ram block, a ram cylinder, and a ram shaft. The lock assembly includes a lock cylinder and a lock piston. The lock cylinder is operatively connectable to the ram cylinder. The ram shaft has an end slidably extendable into a lock cavity of the lock cylinder. The lock piston is slidably positionable in the lock cylinder and separates the lock cavity into a lock and a closing chamber. The lock piston has a ram surface engageable with the end when the lock piston is in a locked position, and a ram hole therethrough to receive the end when the lock piston is in an unlocked position whereby the ram block is selectively lockable about the tubular.

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1177536 BRAKE -- DRILLING (WELL)
BRAKING MECHANISM FOR A DOWNHOLE TOOL; D.B.Crowley and R.D.J.Sedgeman, asrs. (Smart Stabilizer Syst Ltd).. U.S. 2013/0,199,853A1, p. 8/8/2013, f. 2/5/2013 (Appl. 759,629), pr. Gr. Brit. 2/7/2012 (Appl. 1,202,083) (E21B-0007/06). (11 pp)

This invention relates to braking mechanism for a downhole tool such as a steering tool. The braking mechanism comprises (1) a body adapted for mounting upon the tool; (2) at least one braking member which is movably mounted upon the body; (3) a resilient biasing means biasing the braking member away from the body; and (4) a damping mechanism connected to the braking member, the damping mechanism providing a damping force opposing movements of the braking member relative to the body. The damping force is dependent upon the rate of movement of the braking member.

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1177537 DRAG BIT -- DRILLING (WELL)
DRAG DRILL BIT WITH HYBRID CUTTER LAYOUT HAVING ENHANCED STABILITY; B.Chrest, asr. (Ulterra Drilling Technl LP).. U.S. 2013/0,153,305A1, p. 6/20/2013, f. 12/15/2011 (Appl. 327,577) (E21B-0010/00; B23P-0015/28). (9 pp)

A drill bit that provides enhanced stability and a method for manufacturing such bit are provided. In a preferred embodiment, the hybrid drill bit includes a single short-driven blade in the shoulder region of the bit having each of its primary cutters plural set, sharing a common radial/elevational position with a primary cutter in an adjacent blade. All other primary cutters of the drill bit are single-set at unique radial/elevational positions. The trailing plural-set cutters do less work than the other cutters and disrupt resonance and the feedback mechanism that leads to vibration, instability and whirling. In alternate embodiments, multiple blade pairs or groups may have primary cutters in the shoulder region that are plural set, sharing common radial/elevational positions with other primary cutters.

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1177538 DRAG BIT -- DRILLING (WELL)
DRILL BITS HAVING DEPTH OF CUT CONTROL FEATURES AND METHODS OF MAKING AND USING THE SAME; K.Haugvaldstad, asr. (Smith International Inc).. World 2013/155,261A1, p. 10/17/2013, f. 4/11/2013 (Appl. 1,336,106), pr. U.S. 4/11/2012 (Appl. 61/622,749) and U.S. 3/14/2013 (Appl. 829,815) (E21B-0010/43; E21B-0010/42). (41 pp)

A drill bit for drilling a borehole in an earthen formation may include (1) a bit body having a bit axis and a direction of rotation about the bit axis; (2) at least two blades extending azimuthally from the bit body; and (3) a plurality of cutting elements disposed on the at least two blades. The plurality of cutting elements forms a cutting profile in a rotated profile view, each cutting element having a radial distance from the bit axis. At least one blade, at its formation-facing surface, may include, between two radially adjacent cutting elements on the at least one blade, a raised depth of cut feature for each cutting element on the other of the at least two blades that are at radial distances from the bit axis intermediate the radial distances from the bit axis of the radially adjacent cutting elements on the at least one blade.

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1177539 DRAG BIT -- DRILLING (WELL)
DRILL BITS AND METHODS FOR FORMING CURVED PORTIONS OF A BOREHOLE; M.Montgomery.. U.S. 2013/0,199,850A1, p. 8/8/2013, f. 2/8/2012 (Appl. 385,221) (E21B-0007/04; E21B-0010/36). (9 pp)

Drill bits and methods for forming a curved portion of a borehole include a first plurality of cutting elements, such as tungsten carbide inserts, positioned at the outer or perimeter region of a bit face and oriented to bore in a direction generally perpendicular to the bit face. A second plurality of cutting elements, such as polycrystalline diamond compact cutters, are positioned at the inner region of the bit face and oriented to bore in a direction generally parallel to the bit face. When forming a curved portion of a borehole, the first plurality of cutting elements engage the formation to allow the drill bit to reorient at sharper angles than conventional methods for forming a curve, while when forming a linear portion of a borehole, the second plurality of cutting elements engage the formation to provide stability to the drill bit and a rapid rate of penetration.

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1177540 DRILL STEM SUB -- DRILLING (WELL)
A DOWNHOLE TOOL FOR USE IN A DRILL STRING; S.Zhou, asr. (Saudi Arabian Oil Co; Aramco Services Co).. World 2013/155,257A2, p. 10/17/2013, f. 4/11/2013 (Appl. 1,336,096), pr. U.S. 4/13/2012 (Appl. 61/623,786) (E21B-0021/00; E21B-0034/06). (27 pp)

A downhole tool in a drill string for mitigating hazards of a blockage in an annulus of the drill string is disclosed. The downhole tool can sense blockages and selectively recirculate flow from within the annulus back to the surface. Further, the downhole tool is made up of segments that are selectively detachable from one another, so that the segments above the point of detachment are removable from a wellbore. A bypass sub recirculates flow and includes a sleeve with openings in its side; when the annulus reaches a set pressure, the sleeve slides to a position so the openings register with ports formed through a side wall of the sub to allow bypass flow. A processor in the downhole tool senses movement of the string, and when the string is axially stationary for more than a designated period of time, the processor emits signals to detach the segments.

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1177541 FLEXIBLE PIPE -- DRILLING (WELL)
FLUOROPOLYMER PIPE; P.Colaianna, G.Besana, M.Mirenda and N.Messina, asrs. (Solvay Special Polymer SpA).. World 2013/144,074A1, p. 10/3/2013, f. 3/25/2013 (Appl. 1,356,237), pr. Europe. 3/26/2012 (Appl. 12,161,236) (B32B-0001/08; F16L-0009/00; B32B-0027/30; F16L-0009/147; C08F-0214/26; F16L-0055/165; F16L-0053/00). (31 pp)

The present invention pertains to a pipe comprising at least one layer at least comprising, preferably consisting essentially of (or being made of), a tetrafluoroethylene (TFE) copolymer comprising from 0.8% to 2.5% by weight of recurring units derived from at least one perfluorinated alkyl vinyl ether having a formula of CF2=CF-O-Rf wherein Rf is a linear or branched C3-C5 perfluorinated alkyl group or a linear or branched C3-C12 perfluorinated oxyalkyl group comprising one or more ether oxygen atoms, the TFE copolymer having a melt flow index comprised between 0.5 and 6.0 g/10 min, as measured according to ASTM D1238 at 372°C under a load of 5 Kg [polymer (F)]. The invention also pertains to use of the pipe in heat exchangers and in downhole operations, including drilling operations.

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1177542 FLUID ENTRY -- DRILLING (WELL)
APPARATUSES AND METHODS FOR DETERMINING WELLBORE INFLUX CONDITION USING QUALITATIVE INDICATIONS; R.A.Judge, asr. (Hydril USA Mfg LLC).. Europe. 2,610,427A1, p. 7/3/2013, f. 12/18/2012 (Appl. 12,197,655), pr. U.S. 12/28/2011 (Appl. 338,542) (E21B-0021/08). (16 pp)

Apparatuses and methods useable in drilling installations having a mud loop for detecting ongoing or imminent kick events are provided. An apparatus includes a first sensor configured to measure a input mud flow pumped into the well, and a second sensor configured to measure a variation of a return mud flow emerging from the well. The apparatus further includes a controller connected to the first sensor, and to the second sensor. The controller is configured to identify an ongoing or imminent kick event based on monitoring and comparing an evolution of the input mud flow as measured by the first sensor and an evolution of the return mud flow as inferred based on measurements received from the second sensor. Additionally, a third sensor can be included in the apparatus to confirm the conclusion made by the controller before alerting the user that a kick has likely occurred.

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1177543 HARD FACING -- DRILLING (WELL)
WEAR PART; K.Tank, S.W.Wai and L.F.Van Staden.. U.S. 2013/0,199,693A1, p. 8/8/2013, f. 8/23/2011 (Appl. 814,740), pr. Gr. Brit. 8/24/2010 (Appl. 1,014,059), U.S. 8/24/2010 (Appl. 61/376,557) and World 8/23/2011 (Appl. 1,164,444) (E21C-0035/183; B05B-0001/00; E21B-0010/22). (21 pp)

A tool component comprising a wear part covered at least in part by a connection member is described. The wear part has a specified hardness and the connection member is a metal or alloy, and the wear part comprises a surface that includes one or more depressions or projections therefrom. The connection member has been pressed against that surface so that at least the surface of the connection member that faces the wear part surface follows the profile of the wear part, whereby relative movement between the wear part and connection member is substantially prevented. The metal or alloy connection member may be readily attached to a tool body for example by brazing, etc. The wear part may comprise a material that is not readily brazeable, for example, a ceramic material or a cermet or a superhard material or a composite of such materials. Examples of tools in which wear parts may be included are water jet nozzles, inserts for rock drilling bits, mechanical seals and bearings.

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1177544 JET DRILLING -- DRILLING (WELL)
IMPULSE-TYPE UNDERGROUND SUPERCHARGED JET DRILLING METHOD AND DEVICE; G.Li, J.Niu, Z.Huang, H.Shi, S.Tian and J.Fu, asrs. (China Univ Petroleum).. U.S. 2013/0,199,849A1, p. 8/8/2013, f. 11/21/2012 (Appl. 683,426), pr. China 2/8/2012 (Appl. 2012-10,027,666) (E21B-0007/18). (15 pp)

An impulse-type underground supercharged jet drilling method and device are provided. The impulse-type underground supercharged jet drilling method uses up-and-down vibrations of a drill string or weight-on-bit variation during the drilling process, so that an upper joint connected to the drill string drives a housing and a supercharging cylinder block to move up and down relative to a supercharging piston, while the supercharging piston, a high-pressure line, and a drive shaft disposed outside the high-pressure line make a reciprocally retractable movement relative to the housing. As a result, some working fluid entering the supercharging cylinder block is intermittently supercharged, and discharged from a high-pressure fluid passage disposed in the supercharging piston and the high-pressure line. The present disclosure can effectively perform an underground supercharging to parts of the drilling fluid, thus improving the rock-breaking efficiency and the drilling speed.

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1177545 LUBRICATION -- DRILLING (WELL)
LUBRICATION SYSTEM FOR A DRILLING APPARATUS; E.J.Banner, asr. (Drill Rigs Austral Pty Ltd).. U.S. 2013/0,153,301A1, p. 6/20/2013, f. 12/14/2012 (Appl. 714,847), pr. Austral. 12/16/2011 (Appl. 2011-905,249) (E21B-0004/00; E21B-0007/00). (16 pp)

The present invention provides a lubrication system for a drilling apparatus. The drilling apparatus includes a drill string and a drill bit, and it is driven by a working fluid circulated through a working fluid circuit. The lubrication system uses a reservoir of a lubricating fluid for supply to a drilling apparatus during a drilling operation; and a pump for supplying lubricating fluid from said reservoir to the drilling apparatus during the drilling operation. The pump is controlled to supply lubricating fluid from the reservoir at a determined rate to a lubrication circuit formed by the working fluid circuit of the drilling apparatus.

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1177546 PERCUSSION DRILLING -- DRILLING (WELL)
APPARATUS FOR DRILLING AND LINING A BOREHOLE; F.Egerstroem, asr. (LKAB Wassara AB).. World 2013/151,477A1, p. 10/10/2013, f. 3/11/2013 (Appl. 1,350,215), pr. Swed. 4/4/2012 (Appl. 1,250,345) (E21B-0007/20; E21B-0017/14; E21B-0004/00). (21 pp)

The invention concerns an arrangement at a drill for downhole drilling in front of a subsequent lining pipe, comprising (1) a drill bit to be inserted at its neck into a chuck in a downhole drill, from which impacts are transferred to the drill bit; (2) a control means for guiding the drill and the lining pipe relative to each other and that allows the drill to rotate relative to the lining pipe; (3) a coupling arrangement in the form of a bayonet coupling or similar with which the drill can be coupled to the control means to allow them to be separated and that in its freed condition allows the drill, together with the downhole drill, to be withdrawn through the lining pipe; and (4) a flushing passage for the supply of flushing agent in front of the drill and an evacuation passage for the removal of drilling cuttings together the flushing agent.

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1177547 PIPE HANDLING -- DRILLING (WELL)
CONVEYOR FOR USE WITH A DRILL PIPE STORAGE SLOOP; J.Nitschke and J.Nitschke, asrs. (John Nitschke Pty Ltd).. World 2013/149,302A1, p. 10/10/2013, f. 4/4/2013 (Appl. 1,300,353), pr. Austral. 4/4/2012 (Appl. 2012-901,347) (E21B-0019/15; B65G-0017/06; E21B-0019/20). (31 pp)

A conveyor for delivering lengths of drill pipe to and from a use position has an elongate conveying means for supporting and conveying drill pipe toward or away from a use position. The conveying means has a conveying surface means that allows movement of the drill pipe with respect to the conveying surface means if conveying movement of the drill pipe is obstructed, so that the conveying surface means can continue to move with respect to the drill pipe. The invention allows handling of drill pipe and allows the drill pipe to slip if inadvertently obstructed.

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1177548 PRESSURE RELEASE -- DRILLING (WELL)
METHOD AND APPARATUS FOR RELEASING GAS PRESSURE FROM A DRILL STRING; A.P.Blake.. U.S. 2013/0,192,849A1, p. 8/1/2013, f. 1/26/2012 (Appl. 359,390) (E21B-0034/02). (8 pp)

An apparatus for releasing gas pressure from a drill string includes a tubular housing having a circumferential sidewall, an axis, a first end, a second end and a central passage extending between the first end and the second end. A pressure member is positioned in the central passage along the axis of the housing. The pressure member is movable from a first position retracted within the housing to a second position extending past the second end of the housing. An actuator is provided to move the pressure member from the first position to the second position, where the pressure member exerts a force to move a valve member of a float valve to an open position, thereby allowing gas trapped in the drill string to flow through the central passage. The apparatus has application to underbalanced pressure drilling when natural gas is injected into the drilling mud to reduce its density.

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1177549 RAM -- DRILLING (WELL)
VISUAL RAM POSITION INDICATOR APPARATUSES AND METHODS; R.C.Gustafson, asr. (Hydril USA Mfg LLC).. Europe. 2,604,788A2, p. 6/19/2013, f. 12/3/2012 (Appl. 12,195,192), pr. U.S. 12/13/2011 (Appl. 324,029) (E21B-0033/06; E21B-0033/064). (17 pp)

Apparatuses for providing a visual indication outside a blowout preventer (BOP) relative to a position of ram blocks inside the BOP, and methods of adding such apparatuses to existing blowout preventers are provided. An apparatus has an indicator rod, a detectable portion and a sealing assembly. The indicator rod has an end extending outside an end cap of the BOP, and is configured to engage with a tail rod of a ram block of the BOP, and to switch between a first position when the BOP is in a closed state, and a second position when the BOP is in an open state. The detectable portion is located outside the end cap and is configured to provide a visual indication relative to a current position of the indicator rod. The sealing assembly is configured to seal a space inside the end cap from an environment in which the BOP operates.

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1177550 ROCK STRESS -- DRILLING (WELL)
USING THE FINITE ELEMENT METHOD (FEM) FOR THE DETERMINATION OF STRESS AND STRAINS IN A MODEL OF THE WELL [USO DEL METODO DE ELEMENTOS FINITOS (MEF) PARA LA DETERMINACION DE ESFUERZOS Y DEFORMACIONES EN UN MODELO DE POZO]; D.M.Ochoa Suarez, J.Vivas and E.R.Santafe Rangel (Santander Industrial Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 6 pp; In Spanish)

The drilling and production of hydrocarbons can be hindered by the state of stress and deformation which in most cases can generate instability. By taking into account the conditions and properties of the well, it is possible to create a geomechanical model to reduce the uncertainties when drilling. To do this the commercial software ANSYS, based on the finite element method, is used as the design software tool. One of the main problems faced during the 3D modeling is the lack of symmetry because properties on the vertical axis may vary enormously. This model is initially used to conduct a preliminary analysis of material elasticity. The result can be seen in 3D deformations and tension profiles.

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1177551 SAFETY EQUIPMENT -- DRILLING (WELL)
SAFETY PROTECTION APPARATUS FOR PERSONNEL ON OIL DRILLING DERRICKS; P.L.Bagnaro, asr. (Sapheco LLC).. U.S. 2013/0,199,854A1, p. 8/8/2013, f. 2/6/2012 (Appl. 367,096) (E21B-0041/00). (16 pp)

A safety apparatus for personnel includes a cylindrical quick disconnect switch having a receptacle and a plunger. The receptacle has an open circuit pair of electrical wires. The plunger is configured to attach to a derrick man. The plunger and the receptacle are configured to mate when the plunger is inserted into the receptacle and to remain frictionally mated until pulled apart. The mating results in closing the circuit between the pair of electrical wires.

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1177552 SEMISUBMERSIBLE DRLG BARGE -- DRILLING (WELL)
APPARATUS AND METHOD FOR SECURING A FIRST MARINE SUPERSTRUCTURE TO A SECOND MARINE SUPERSTRUCTURE; I.A.Iversen and D.S.Pandher, asrs. (Primepoint Pte Ltd).. World 2013/151,506A1, p. 10/10/2013, f. 4/3/2013 (Appl. 1,300,129), pr. SG 4/4/2012 (Appl. 201,202,522) (B63B-0021/10; B63B-0021/50). (26 pp)

Apparatus and methods for securing a first marine superstructure to a second marine superstructure are disclosed. The fully assembled apparatus comprises (1) one or more sliding fairlead apparatus, each comprising a moveable member comprising a first face and a second face; (2) a fairlead mounted to the second face of the moveable member and configured to be attachable to a hawser line; and (3) one or more support apparatus, each comprising a support member having an upper portion and a lower portion mounted to the second marine superstructure and a rail member comprising a track that is connected to the support member, wherein each of the one or more sliding fairlead apparatus is configured to be slidably attached to the track of the rail member of a corresponding one of the one or more support apparatus, such that a connection between the first and second marine superstructures is formed upon attachment of a hawser line to the fairlead mounted to the second face of the moveable member of the slidable fairlead apparatus.

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1177553 SHEAR RAM -- DRILLING (WELL)
SHEAR BLADE AND METHOD OF ATTACHMENT TO SHEAR RAMS; V.Shah, W.L.Carbaugh and L.G.Childers, asrs. (Hydril USA Mfg LLC).. Europe. 2,610,428A2, p. 7/3/2013, f. 12/18/2012 (Appl. 12,197,649), pr. U.S. 12/28/2011 (Appl. 338,862) (E21B-0033/06). (13 pp)

A shear blade attached to a ram block. At least one bolt passage is formed at an angle at the top of the ram block. A bolt passage is formed in the shear blade that corresponds with the bolt passage on the ram block. A bolt introduced into the bolt passage of the ram block and also the bolt passage in the shear blade attaches the shear blade to the ram block. By using this technique for attaching the shear blade to the ram block, the surface area of a front face of the shear blade is not further reduced. Therefore, the strength of the shear blade is increased. The shear rams are part of a blowout preventer (BOP) assembly.

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1177554 SIDETRACKING -- DRILLING (WELL)
SYSTEM AND METHOD FOR FORMING A LATERAL WELLBORE; S.Zhou, asr. (Saudi Arabian Oil Co; Aramco Services Co).. World 2013/155,059A2, p. 10/17/2013, f. 4/9/2013 (Appl. 1,335,754), pr. U.S. 4/9/2012 (Appl. 61/621,689) (E21B-0007/04). (22 pp)

A lateral wellbore is formed from a high side of a horizontal portion of a primary wellbore with a drill bit assembly that has a selectively extendable pilot bit. The drill bit assembly is mounted on a lower end of a drill string. A bit guide is disposed adjacent the drill bit assembly for urging the drill bit assembly in a lateral direction against the high side of the primary wellbore. Rotating the drill bit assembly while urging the drill bit assembly upward creates a groove in a subterranean formation adjacent the primary wellbore. This forms a ledge at a far end of the groove. The drill string is then drawn back from the groove, and the pilot bit is deployed. Urging the drill bit assembly forward engages the pilot bit with the ledge, providing leverage for retaining the drill bit assembly in an orientation for excavating the lateral wellbore.

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1177555 SUBSEA VALVE -- DRILLING (WELL)
SUBSEA OPERATING VALVE CONNECTABLE TO LOW PRESSURE RECIPIENT; R.C.Gustafson, asr. (Hydril USA Mfg LLC).. Europe. 2,604,787A1, p. 6/19/2013, f. 11/30/2012 (Appl. 12,194,960), pr. U.S. 12/13/2011 (Appl. 323,998) (E21B-0033/035; E21B-0033/064; E21B-0034/04). (23 pp)

A valve useable in an undersea apparatus for generating a force for closing a blowout preventer (BOP) based on a pressure difference between a low-pressure recipient and ambient pressure, an apparatus including the valve and related methods are provided. The valve includes a valve body enclosing a chamber with an input port selectively connectable to an output port, and a chamber separating assembly configured to separate the chamber from a region of different pressure. The assembly includes (1) a backup plate having a first portion of a first diameter toward the chamber and a second portion of a second diameter larger than the first diameter toward the region; and (2) an upper seat located between the first portion of the backup plate and the valve body.

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1177556 SURFACE PREPARATION -- DRILLING (WELL)
MATERIAL REMOVAL SYSTEM FOR USE WITH ARTICLES HAVING VARIATIONS IN FORM; C.A.Ownby, D.W.Darling, M.E.Ganninger and P.Courtois, asrs. (Design & Assembly Inc; Halliburton Energy Service).. U.S. 2013/0,152,356A1, p. 6/20/2013, f. 12/16/2011 (Appl. 329,125) (B23Q-0017/20; B23P-0017/00). (17 pp)

A method of removing unwanted material from an article having a variable form can include (1) scanning the article and determining, based on the scanning, a location of the unwanted material; (2) determining tool paths of a cutting tool which will result in removal of the unwanted material; and (3) displacing the cutting tool along the tool paths, thereby removing the unwanted material. A material removal system for removing unwanted material from an oilfield drill bit can include (1) a rotary indexing device which rotates the drill bit about a longitudinal axis of the drill bit; (2) a scanning device which scans an outer surface of the drill bit; and (3) a controller which determines a geometry of the drill bit based on at least one scan by the scanning device, determines a location of the unwanted material, and determines tool paths of a cutting tool for removal of the unwanted material.

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1177557 TEMPLATE -- DRILLING (WELL)
DROP AWAY FUNNEL FOR MODULAR DRILLING TEMPLATES; S.Varghese, C.Trimble, C.Loftin and J.A.Raynal, asrs. (Vetco Gray Inc).. World 2013/155,176A2, p. 10/17/2013, f. 4/10/2013 (Appl. 1,335,966), pr. U.S. 4/10/2012 (Appl. 443,530) (E21B-0007/124). (17 pp)

A template for use in positioning subsea wellbores has a drop-away funnel that extends laterally from the template. The drop-away funnel is used to locate a piling adjacent the wellbores and is selectively detached from the template after installing the piling. A tang and clevis-type assembly mounts the drop-away funnel to the template, where the tang and clevis are coupled together with a main stud. The main stud is oriented substantially parallel with an axis of the drop-away funnel, so that when the stud is removed, the drop-away funnel can decouple from the template and slide axially downward along the piling.

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1177558 THERMAL INSULATION -- DRILLING (WELL)
HIGH-PRESSURE HIGH-TEMPERATURE CELL; S.N.Middlemiss, Y.Bao and L.Carter, asrs. (Smith International Inc).. World 2013/154,952A1, p. 10/17/2013, f. 4/8/2013 (Appl. 1,335,543), pr. U.S. 4/9/2012 (Appl. 61/621,911) and U.S. 3/15/2013 (Appl. 836,396) (B24D-0003/04; E21B-0010/46). (39 pp)

A high-pressure/high-temperature (HPHT) cell including two or more thermal insulation layers is described. A high-pressure/high-temperature cell including a current path through a thermal insulation layer, the current path being electrically connected to a heating element and having an indirect path through the thermal insulation layer, is also described. High-pressure/high-temperature press systems including the foregoing the high-pressure/high-temperature cells alone or in combination are also disclosed. HPHT cells are used to form ultrahard materials such as polycrystalline diamond (PCD) and polycrystalline cubic boron nitride (PBCN) cutting tools and rock bits.

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1177559 THERMAL INSULATION -- DRILLING (WELL)
THERMAL INSULATION LAYER AND PRESSURE TRANSFER MEDIUM FOR HIGH-PRESSURE/HIGH-TEMPERATURE CELL; Y.Bao, J.D.Belnap and S.N.Middlemiss, asrs. (Smith International Inc).. World 2013/154,955A1, p. 10/17/2013, f. 4/8/2013 (Appl. 1,335,549), pr. U.S. 4/9/2012 (Appl. 61/621,918) and U.S. 3/14/2013 (Appl. 830,181) (C23C-0030/00; C23C-0026/00). (27 pp)

A thermal insulation layer is described for an HPHT cell. The thermal insulation layer includes CsC1, CsBr, CsI, or a combination thereof, the thermal insulation layer being electrically insulating. The thermal insulation layer includes (1) a thermal insulation sleeve and/or a thermal insulation button for an HPHT cell; (2) a pressure transfer medium for an HPHT cell, the pressure transfer medium including CsBr, CsI or a combination thereof; and (3) a pressure transfer medium for an HPHT cell, the pressure transfer medium including CsCl and additive, with the proviso that the additive does not include ZrO2. HPHT press systems that include a thermal insulation layer or a pressure transfer medium according to embodiments of the present disclosure are also disclosed. HPHT cells are used to form ultrahard materials such as polycrystalline diamond (PCD) and polycrystalline cubic boron nitride (PCBN) cutting tools and rock bits.

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1177560 THRUST BEARING -- DRILLING (WELL)
BEARING ASSEMBLIES, APPARATUSES, AND MOTOR ASSEMBLIES USING THE SAME; S.B.Peterson, J.J.Gonzalez, K.E.Bertagnolli, D.Mukhopadhyay, D.P.Miess, M.P.Chapman, R.W.Ward, N.Christensen, D.B.Crockett et al., asrs. (US Synthetic Corp).. U.S. 2013/0,156,357A1, p. 6/20/2013, f. 3/28/2012 (Appl. 432,224), pr. U.S. 5/26/2011 (Appl. 116,566) and U.S. 9/16/2011 (Appl. 234,252) (F16C-0017/04; B21K-0001/04; F16C-0017/02). (22 pp)

Bearing assemblies, apparatuses, and motor assemblies using the same are disclosed. In an embodiment, a bearing assembly may include a plurality of superhard bearing elements distributed circumferentially about an axis. Each of the superhard bearing elements may include a bearing surface. At least one of the plurality of superhard bearing elements may include at least one texture feature that may be formed in a lateral surface thereof. The bearing assembly may also include a support ring that carries the superhard bearing elements. The bearing elements may be employed with bottom hole assembly drilling equipment.

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1177561 THRUSTER -- DRILLING (WELL)
SYSTEM FOR LIFTING THRUSTERS FOR PROVIDING MAINTENANCE TO THRUSTERS OF FLOATING VESSELS; J.R.M.Bekker and S.R.Moore, asrs. (Thrustmaster of Texas Inc).. Europe. 2,610,160A2, p. 7/3/2013, f. 10/28/2011 (Appl. 11,187,180), pr. U.S. 9/16/2010 (Appl. 61/383,684) and U.S. 8/12/2011 (Appl. 209,262) (B63B-0017/00). (20 pp)

A system for lifting thrusters of vessels enabling for maintenance to be safely provided on the thrusters is disclosed herein. The system can include a lifting means with a line and a connector to engage thrusters or portions of thrusters. A transport device can be connected to the lifting means for transporting the thrusters or the portions of the thrusters. Clamps can secure thruster mounting flanges to thruster well bottom flanges. A conduit with a controller and a pump can allow water to flow into and out of the thruster wells. Seals adjacent the thruster mounting flanges can provide a connection between the flanges. A plurality of alignment guide plates can be disposed concentrically around the thrusters in the thruster wells and for a rough alignment of the thrusters to the thruster mounting flanges. Fasteners can secure the thruster mounting flanges to the thruster well bottom flanges.

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1177562 TURRET -- DRILLING (WELL)
TURRET BEARING STRUCTURE FOR VESSELS; S.Lindblade, W.Fontenot and C.Heyl, asrs. (SOFEC Inc).. World 2013/155,333A1, p. 10/17/2013, f. 4/11/2013 (Appl. 1,336,220), pr. U.S. 4/13/2012 (Appl. 446,857) (B63B-0021/00; E02B-0003/24). (26 pp)

A radial bearing arrangement includes a turret carried by a vessel, the turret having an outer annular rail secured about its outer circumference. The radial bearing arrangement also includes a plurality of rollers attached to the vessel via bearing assemblies. The bearing assemblies are arranged and designed to urge the rollers into contact with the annular rail, and to limit radial movement of the vessel relative to the turret. A plurality of bearing pads are attached to the vessel and positioned circumferentially between the bearing assemblies. The bearing pads are arranged and designed to contact the rail under peak loading to limit radial movement of the vessel relative to the turret. The vessel may be employed in petroleum industry offshore drilling or offshore producing.

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1177563 VALVE ACTUATOR -- DRILLING (WELL)
DOWNHOLE ACTUATOR; B.T.Jepp and K.S.Gaskin, asrs. (CFF Technologies Ltd).. World 2013/150,280A2, p. 10/10/2013, f. 3/28/2013 (Appl. 1,350,844), pr. Gr. Brit. 4/3/2012 (Appl. 1,259,954) (E21B-0034/14). (38 pp)

A downhole actuator typically for a downhole tool such as a valve, and typically for incorporation in a string of tubulars in an oil or gas well, has a central axis with radially movable counterweights on opposite sides of the axis, which move radially outward to change the activation state of the actuator. The counterweights are supported by link arms which control the movement of the counterweights in response to centrifugal force created by rotation of the body, for example, during rotary drilling operations of the string. Radial outward movement of the counterweights typically transmits axial forces between sleeves at the upper and lower ends of the counterweights; when the counterweights move radially outward, the upper and lower sleeves approach one another, which typically triggers the actuator.

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1177564 VIBRATOR -- DRILLING (WELL)
METHOD AND APPARATUS FOR CREATING A PRESSURE PULSE IN DRILLING FLUID TO VIBRATE A DRILL STRING; T.Gust, asr. (Cougar Drill Solutions Inc).. U.S. 2013/0,199,848A1, p. 8/8/2013, f. 2/2/2012 (Appl. 364,451) (E21B-0007/24). (8 pp)

A pressure pulse generating method and apparatus for use with a drill string includes (1) top and bottom subs for attaching the apparatus within the drill string; (2) a rotor/stator; (3) a drive assembly; (4) a nozzle sub which includes a nozzle assembly comprising a nozzle holder and a replaceable nozzle; and (5) a nozzle housing having pulse openings. The nozzle holder has fluid ports which periodically align with the pulse openings as the nozzle holder rotates within the nozzle housing to achieve a desired pulse amplitude, frequency and waveform. The vibrator is used to vibrate the drill string to overcome frictional resistance during horizontal or directional drilling operations.

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1177565 WELL HEATING -- DRILLING (WELL)
TRIGGERED HEATING OF WELLBORE FLUIDS BY CARBON NANOMATERIALS; B.K.Price Hoelscher, asr. (M-I LLC).. World 2013/155,061A1, p. 10/17/2013, f. 4/9/2013 (Appl. 1,335,758), pr. U.S. 4/9/2012 (Appl. 61/621,716) (E21B-0043/24; E21B-0007/14; E21B-0043/22; E21B-0021/08). (39 pp)

A method of triggering heating within a subterranean formation includes (1) introducing a wellbore fluid containing a dispersed carbon nanomaterial into a wellbore through the subterranean formation; (2) lowering a microwave or ultraviolet radiation source into the wellbore; and (3) irradiating the wellbore with microwave or ultraviolet radiation, thereby increasing the temperature of the wellbore fluid and/or wellbore. The method may be employed in mud cake removal, thermosetting or other drilling fluid changes involving thermal treatment.

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WELL LOGGING & SURVEYING

table of contents list of publications

1177566 APPARENT RESISTIVITY -- WELL LOGGING & SURVEYING
ESTIMATING ANISOTROPIC RESISTIVITY OF A GEOLOGICAL SUBSURFACE; A.Draege, asr. (Statoil Petroleum AS).. World 2013/149,663A1, p. 10/10/2013, f. 4/4/2012 (Appl. 1,256,221) (G01V-0011/00). (24 pp)

A method and apparatus are disclosed for estimating anisotropic resistivity of a geological subsurface in a region of interest. Elastic wave velocity data is obtained for the region of interest. The obtained elastic wave velocity is related to vertical and horizontal components of resistivity for the region of interest using empirically derived coefficients.

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1177567 DOWNHOLE FLUID ANALYSIS -- WELL LOGGING & SURVEYING
NON-INVASIVE COMPRESSIBILITY AND IN SITU DENSITY TESTING OF A FLUID SAMPLE IN A SEALED CHAMBER; L.Gao, M.A.Proett, S.Eyuboglu and T.H.van Zuilekom, asrs. (Halliburton Energy Service).. U.S. 2013/0,199,286A1, p. 8/8/2013, f. 6/17/2010 (Appl. 389,583), pr. World 6/17/2010 (Appl. 1,039,050) (E21B-0049/08; G01N-0009/04). (13 pp)

In situ density and compressibility of a fluid sample are determined for a fluid sample collected downhole. The density and compressibility of the fluid sample are determined by measuring a distance to a piston contained within the sample chamber using an external magnetic field sensor that senses a magnetic field emanating from a magnet provided on the piston internal to the sample chamber. The testing is performed quickly and at the surface in a non-invasive fashion (i.e., without opening the sample chamber).

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1177568 ELECTRIC CABLE -- WELL LOGGING & SURVEYING
DOWNHOLE CABLE; P.Colaianna, M.Mirenda, G.Besana and G.Brinati, asrs. (Solvay Special Polymer SpA).. World 2013/144,073A1, p. 10/3/2013, f. 3/25/2013 (Appl. 1,356,235), pr. Europe. 3/26/2012 (Appl. 12,161,230) (H01B-0007/29). (27 pp)

The present invention pertains to a cable comprising (1) at least one conductor coated by an insulation coating layer; (2) a first protective layer surrounding the insulation coating layer, the first protective layer at least comprising, but preferably being made of, a tetrafluoroethylene (TFE) copolymer comprising from 0.8% to 2.5% by weight of recurring units derived from at least one perfluorinated alkyl vinyl ether having a formula of CF2=CF-O-Rf, wherein Rf is a linear or branched C3-C5 perfluorinated alkyl group or a linear or branched C3-C12 perfluorinated alkyl group comprising one or more ether oxygen atoms. The TFE copolymer has a melt flow index comprised between 1.0 and 6.0 g/10 min, as measured according to ASTM D1238 at 372°C under a load of 5 Kg [polymer (F)]; (3) optionally, a second protective layer surrounding the first protective layer; and (4) an armor shell surrounding the first or second protective layer. The invention also pertains to use of the cable in downhole wells.

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1177569 FRACTURE MAPPING -- WELL LOGGING & SURVEYING
APPARATUS, METHOD AND SYSTEM FOR MAPPING FRACTURE FEATURES IN HYDRAULICALLY FRACTURED STRATA USING FUNCTIONAL PROPPANT PROPERTIES; M.T.Mangione, P.H.Townsend and R.J.Duenckel, asrs. (CARBO Ceramics Inc).. U.S. 2013/0,154,846A1, p. 6/20/2013, f. 11/8/2012 (Appl. 672,403), pr. U.S. 11/9/2011 (Appl. 61/557,774) (G01V-0003/12). (35 pp)

A system and method are disclosed for (1) deploying multiple antennas in an array configuration with unobstructed electromagnetic access to a formation outside of a casing; (2) sequencing the transmitted signal to control the direction of transmission into the formation; (3) receiving the reflected signals; and (4) locating the position of the reflection based on the scanned transmission signal orientation and the direction of the received signal. Such a deployment of an antenna array with unobstructed electromagnetic access to the formation outside of the casing, sequencing of the interrogation signal, and analysis of the received signal relative to the transmitted signal direction form the basis for reflection image rendering as the transmitted signal is scanned by a sequenced stimulus signal.

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1177570 GAS SATURATION -- WELL LOGGING & SURVEYING
QUANTIFYING GAS SATURATION WITH PULSED NEUTRON LOGGING - AN INNOVATIVE APPROACH; M.N.Al-Nasser, S.M.Ma, N.M.Al-Mushrafi, A.S.Al-Muthana, S.Riley and A.I.Geevarghese (Saudi Aramco; Weatherford International).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166025; Available on CD-ROM; 10 pp)

In reservoir surveillance, gas saturation is routinely monitored both in gas reservoirs for reservoir performance and in saturated oil reservoirs to prevent gas coning or to optimize infill drilling well placement. This paper presents a new pulsed neutron technology and method that enable the quantitative monitoring of the gas saturation variations to address these reservoir management issues. One of the key features of the newly designed pulsed neutron tool is the new type of Lanthanum Bromide (LaBr3) detectors. The extra-long spacing of the far detectors provides a larger volume of investigation that is more representative of the actual reservoir condition. The quantitative aspect of the measurement is achieved by using the ratios of the detector counts, so that the rock matrix effects are diminished, as opposed to the traditional sigma measurement, which can be influenced significantly by the rock matrix properties. This new tool and data interpretation methodology have been tested in both clastic and carbonate reservoirs with encouraging results. This paper presents an overview of the technology and some field application examples. (Copyright 2013 SPE)

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1177571 GEOLOGIC MODEL -- WELL LOGGING & SURVEYING
APPLICATION OF DIPMETER RECORDS IN THE UPDATE OF GEOLOGICAL MODELS OF MATURE FIELDS OF LISAMA, TESORO, NUTRIA AND PEROLES, MIDDLE MAGDALENA VALLEY BASIN, COLOMBIA [APLICACION DE LOS REGISTROS DE DIPMETER EN LA ACTUALIZACION DE LOS MODELOS GEOLOGICOS DE LOS CAMPOS MADUROS DE LISAMA, TESORO, NUTRIA Y PEROLES, CUENCA VALLE MEDIO DEL MAGDALENA, COLOMBIA]; J.L.Rubiano Ortiz (Ecopetrol SA).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 7 pp; In Spanish)

In the study area, dipmeter records from 85 wells were analyzed to update the geologic models for the Lisama, Tesoro, Nutria and Peroles fields. The geometry of the structure is the anticlinal variation with angles of the flanks 70 degrees representing a tight structure on the north and dips below 10 degrees in the south ranging from NE to SW. The paleocurrent directions were determined from these stratigraphic units: Umir-Lisama; Lisama-Esmeraldas; Esmeraldas-Mugrosa; Mugrosa-Colorado; and Colorado-Real.

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1177572 GEOSTEERING -- WELL LOGGING & SURVEYING
[R] FIRST DEEP AZIMUTHAL ELECTROMAGNETIC RESISTIVITY AND ROTARY STEERABLE SYSTEM GEONAVIGATION PROJECT RESULT IN COMPLEX SANDS FOR BARE FIELD IN ORINOCO OIL BELT, VENEZUELA; P.Machado, R.Guzman, C.Rojas, A.Ache, N.K.Hazboun and K.Gonzalez (Petroleos Venezuela SA; Schlumberger).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-118; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 9 pp) SRLA# 1,028,111

[For abstract and indexing, see Abstract #1,028,111]

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1177573 LOGGING WHILE DRILLING -- WELL LOGGING & SURVEYING
APPARATUSES AND METHODS FOR AT-BIT RESISTIVITY MEASUREMENTS FOR AN EARTH-BORING DRILLING TOOL; A.A.DiGiovanni, D.E.Scott, D.T.Georgi, D.A.Curry, R.W.Khokhar and R.DiFoggio, asrs. (Baker Hughes Inc).. World 2013/155,287A1, p. 10/17/2013, f. 4/11/2013 (Appl. 1,336,151), pr. U.S. 4/11/2012 (Appl. 61/623,042) (E21B-0047/013; E21B-0010/567; E21B-0047/01). (38 pp)

A cutting element for an earth-boring drilling tool comprises a cutting body having a cutting surface thereon, and a sensor coupled with the cutting surface, the sensor configured to determine resistivity of a contacting formation. An earth-boring drilling tool comprises a bit body and an instrumented cutting element coupled with the bit body. The cutting element includes a cutting body having a cutting surface thereon, and at least one sensor located proximate the cutting surface. The at least one sensor is oriented and configured to determine resistivity of a contacting formation. A method of determining resistivity of a subterranean formation during a drilling operation comprises energizing a sensor of an instrumented cutting element of a drill bit, sensing a return signal flowing on or through the subterranean formation through the instrumented cutting element, and determining a resistivity of the subterranean formation based, at least in part, on the return signal.

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1177574 MUD PULSE TELEMETRY -- WELL LOGGING & SURVEYING
TRANSMISSION APPARATUS, RECEPTION APPARATUS, RECEPTION SYSTEM AND RECEPTION PROGRAM; Y.Shinmoto, J.Ishiwata and T.Miyazaki, asrs. (Japan Mar Earth Sci Agency).. World 2013/151,103A1, p. 10/10/2013, f. 4/3/2013 (Appl. 1,360,237), pr. Japan 4/4/2012 (Appl. 2012-085,721) (E21B-0047/24; H04B-0013/02; G08C-0023/00). (69 pp; In Japanese)

The objective of the invention is to transmit more amount of information in a data transmission of mud pulse, etc., using liquid. A transmission apparatus, which is a transmission apparatus for generating pressure waves used to transmit data to drilling mud, comprises (1) a cylindrical member; (2) a plurality of valves that are arranged inside the cylindrical member in the axial direction of the cylindrical member and that each consists of a stator, in which an aperture is formed so as to pass the mud through the aperture, and of a rotor overlaid on the stator and having a shield unit for shielding the aperture of the stator in accordance with a rotational position; and (3) motors that cause the respective rotors to rotate; and a control unit that controls the motors such that the rotors are caused to rotate and halt at mutually different frequencies in accordance with the data to be transmitted.

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1177575 NUCLEAR MAGNETIC LOGGING -- WELL LOGGING & SURVEYING
ADDED VALUE OF NUCLEAR MAGNETIC RESONANCE LOGGING AS DELINEATION TOOL IN EHO CONTEXT: AN EXAMPLE FROM ORINOCO HEAVY OIL BELT; F.Cochet, E.Mus and J.Marcos (Petroleos Venezuela SA; Baker Hughes).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-161; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 15 pp)

An intensive delineation campaign was conducted in a specific area of the Junin block main field Petrocedeno, operated by PDVSA Petrocedeno joint venture, in preparation for the upcoming implementation of a thermal oil recovery project. A complete acquisition program was defined, including conventional logging (GR, resistivity, neutron/density, sonic, formation pressure), coring (around 1,800 ft), and unconventional logging with imagery logs and NMR with the objective of delineating the field. This paper shows the significant added value that the NMR data acquisition brought in fluid and reservoir characterization. It is shown how this new data opens a way to viscosity mapping which appears as an excellent tool for location of producer gravity drainage wells and geosteering. In addition, the new well log data interpretation allowed characterizing the different types of shale (as in shale barriers) which could have a significant impact on future thermal development phases. The NMR tool was also helpful in the saturation evaluation through net pay calculation.

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1177576 NUCLEAR MAGNETIC LOGGING -- WELL LOGGING & SURVEYING
INTEGRATED NMR TRANSCEIVER ARRAY; S.Mandal and Y.Q.Song.. U.S. 2013/0,154,635A1, p. 6/20/2013, f. 12/20/2011 (Appl. 330,880) (G01V-0003/32; G01R-0033/44). (11 pp)

The present disclosure relates to an integrated nuclear magnetic resonance (NMR) transceiver array, the array including a plurality of integrated NMR transceiver circuits disposed on a single chip. At least one of the plurality of integrated NMR transceiver circuits includes a transmitter that receives and outputs a radio frequency (RF) pulse train and a receiver that receives an NMR signal. The apparatus may be employed in petroleum industry NMR logging and NMR spectroscopy and imaging.

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1177577 NUCLEAR MAGNETIC LOGGING -- WELL LOGGING & SURVEYING
REFOCUSING PULSES AND EXCITATION PULSES FOR NMR LOGGING; M.D.Huerlimann, S.Mandal, V.M.Do and Y.Q.Song.. U.S. 2013/0,162,247A1, p. 6/27/2013, f. 12/27/2011 (Appl. 338,083) (G01V-0003/14). (39 pp)

Illustrative embodiments are directed to applying a nuclear magnetic resonance sequence to a substance within an inhomogeneous static magnetic field. Various embodiments include applying a series of refocusing pulses to the substance, each refocusing pulse in the series of refocusing pulses having at least two segments, and a total pulse duration less than or equal to approximately 1.414 times T180. Various embodiments can further include applying an excitation pulse to the substance in the inhomogeneous static magnetic field, where the excitation pulse generates an initial magnetization that is aligned with a refocusing axis produced by a refocusing cycle that is performed after the excitation pulse.

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1177578 PERMANENT DOWNHOLE SENSOR -- WELL LOGGING & SURVEYING
ENCAPSULATED DOWNHOLE SENSOR AND METHOD OF APPLYING A METALLIC LAYER TO A DOWNHOLE SENSOR; J.Hook, asr. (Baker Hughes Inc).. U.S. 2013/0,145,838A1, p. 6/13/2013, f. 12/13/2011 (Appl. 324,471) (E21B-0047/00; B05D-0005/12). (11 pp)

A downhole sensor to detect characteristics in a borehole comprises at least one sensing unit to sense a characteristic in the borehole and a metallic layer covering at least a portion of the sensing unit exposed to an interior of the borehole.

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1177579 PERMEABILITY (ROCK) -- WELL LOGGING & SURVEYING
MINIMIZATION OF DISPARITY BETWEEN WELL TEST AND LOG DRIVEN PERMEABILITIES THROUGH COMBINATION OF ROCK-PHYSICS AND ADVANCED LOGS WITH PROPER AVERAGING TECHNIQUE; S.Vorobiev, M.M.Altunbay, V.Vorobyev and A.S.M.Johari (Petronas Carigali Sdn Bhd; LUKOIL Overseas).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166037; Available on CD-ROM; 14 pp)

Minimization of disparities between well test and log-derived average permeabilities has always been an issue, particularly in carbonates where complex pore structures add on challenges to permeability estimation from wireline log data. The disagreement between permeability averages from logs and well tests originates from the combined effects of measurement-scale of static porosity components for permeability models, dual flow system of fractures and matrix, tensorial nature of permeability and the averaging techniques used. The proposed workflow exploits rock-physics templates to identify and to quantify secondary porosity. Rock-physics templates employ conventionally derived total porosity and shear modulus as inputs. Fracture and vug porosity identified by the proposed workflow through rock-physics agree with other qualitative and quantitative evidences of non-primary porosity obtained from NMR, Umage logs and core data. Matrix and connected-vug permeabilities are computed, calibrated and integrated via Chen-Jacobi connectivity-driven model by using NMR and acoustic log data. Fracture permeability is estimated from fracture aperture and fracture-porosity by using image log data and rock-physics algorithms. The final permeability profile is computed with a selective-replacement step. (Copyright 2013 SPE)

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1177580 RESIDUAL OIL -- WELL LOGGING & SURVEYING
FINDING BYPASSED OIL IN A MATURE FIELD: CASABE FIELD, MIDDLE MAGDALENA VALLEY BASIN, COLOMBIA; J.Peralta-Vargas, G.Cortes, W.Gambaretto, L.Martinez Uribe, F.Escobar, M.Markley, A.Mesa Cardenas, A.Suter, L.Marquez et al. (Schlumberger).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 6 pp)

There are many large fields in the Andean region that were discovered many years ago. These fields are often called mature fields or brown fields. The majority of the production in these fields has been in substantial decline for many years. The oil recovery is often a relatively small percentage of the original-oil-in-place. Casabe Field, discovered in 1941, is one of several prolific fields in the Middle Magdalena Valley Basin, Colombia. From 2004 Schlumberger, in alliance with Ecopetrol, has increased field production from 5,200 BOPD to 12,500 BOPD. The objective of the alliance was to apply new technology to the field in an effort to increase production. Several new technologies were applied to the field and both production and recovery has improved substantially. New technologies such as nuclear magnetic resonance, vertical and horizontal resistivities, and quick, efficient new pressure measurements have made a difference in interpretation and subsequent field development. 3D seismic (acquired over the field area) has been helpful in the identification of by-passed oil in areas with poor or fair recovery. Oil has been identified and tested in attic positions and on the flanks; low resistivity pay intervals have been identified and have been added to production.

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1177581 THIN STRATA -- WELL LOGGING & SURVEYING
THIN BEDS AND CUT-OFFS: A PROBABILISTIC APPROACH FOR AN IMPROVED ASSESSMENT AND MODELLING OF THE NET POROUS VOLUME; J.Clavel and P.Ruelland (Total).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166045; Available on CD-ROM; 10 pp)

The objective of this paper was to improve the knowledge and understanding of sedimentary facies which consist of thin beds, the impact of the cut-offs, and to improve the coherency and quality of 3D models. Applying a cut-off consists in defining a threshold value on one or more logs to separate the reservoir intervals in which hydrocarbons are mobile from the gross rock thickness. In a thin beds context, this deterministic approach is insufficient because of the resolution of the logs and a limited number of data. The probabilistic approach considers that the relationship between the cut-off value on the selected log and hydrocarbon mobility in the sandy laminae is a statistical function. The method is adapted to alternating sand-shale thin beds that have not undergone extensive burial, and has been applied to reservoirs in a turbidite depositional context. In such an environment, the cut-off on the VClay log is the most discriminating. The process of upscaling petrophysical properties is performed for each facies using two cellular mini-models. (Copyright 2013 SPE)

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1177582 WELL LOGGING EQUIPMENT -- WELL LOGGING & SURVEYING
GEOMECHANICAL LOGGING TOOL; M.Badri and R.Taherian, asrs. (Schlumberger Canada Ltd; Schlumberger Serv Petrol; Schlumberger Holdings Ltd; Schlumberger Technol BV; Prad Res & Develop Ltd; Schlumberger Technol Corp).. World 2013/154,956A1, p. 10/17/2013, f. 4/8/2013 (Appl. 1,335,554), pr. U.S. 4/13/2012 (Appl. 61/623,646) and U.S. 4/5/2013 (Appl. 857,620) (G01V-0009/00; G01N-0003/00; E21B-0049/00). (38 pp)

An apparatus includes (1) a body having a central axis defined therethrough; (2) at least one extendable arm coupled to the body; and (3) a mechanical property tester coupled to the at least one extendable arm. The mechanical property tester is configured to penetrate a surface of a borehole and to measure one or more mechanical properties of the surface of the borehole. The apparatus may include well logging equipment such as a caliper or resistivity equipment which may be employed in logging-while-drilling or logging-while-tripping.

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1177583 WELL LOG INTERPRETATION -- WELL LOGGING & SURVEYING
THE EFFICIENCY OF GEOLOGICAL-PETROPHYSICAL STUDY ON THE VUGGY FRACTURED RESERVOIRS OF THE CRYSTALLINE BASEMENT OIL FIELDS AND EVALUATION OF PARAMETERS FOR RESERVES CALCULATION; V.E.Korablinov and V.V.Strelchenko (Gubkin Russian State Univ; Vjetsovpetro).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.26-28, March 2009. (ISSN 0028-2448; In Russian)

Log analysis shows that log responses are particularly influenced by various distortions. Evaluation of porosity by log data is complicated due to difficulties in rock identification, its polymineral composition, and resulting anomalies in logging curves. It is noted that identification of dike intervals, alterated rocks and zones with abnormally high voids, is only possible when all geological and log data are available and used in a complex. Possibility of using the method of balanced porosity based on corrected data of acoustic, neutron-neutron, density and SGR logs for further application of volumetric method is examined. Possibility of using SP curve for identification massive vuggy-fractured, altered reservoirs on the basement is shown.

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1177584 WELL LOG INTERPRETATION -- WELL LOGGING & SURVEYING
METHOD FOR QUANTITATIVELY EVALUATING THE FLUID TORTUOSITY AND THE CHARACTERISTICS OF THE SOLID AND OF THE FLUIDS IN A HETEROGENEOUS RESERVOIR [METHODE POUR EVALUER QUANTITATIVEMENT LA TORTUOSITE FLUIDE ET LES CARACTERISTIQUES DU SOLIDE ET DES FLUIDES DANS UN RESERVOIR HETEROGENE]; N.Ouabed and F.Chegrouche, asrs. (Entreprise Nat Geophysique).. World 2013/149,623A1, p. 10/10/2013, f. 3/17/2013 (Appl. 1,300,003), pr. DZ 4/1/2012 (Appl. 120,216) (G01V-0001/50; G01V-0011/00). (30 pp; In French)

A method of quantitative evaluation of the fluid tortuosity in a heterogeneous reservoir on the basis of diagraphic measurements (gamma ray, global density and the slownesses of the longitudinal and transverse waves) allows the estimation of the permeability and the size of the pores, affording an improvement in estimating the formation resistivity factor. The evaluation is undertaken of the porosity (phi) on the basis of the slowness of the longitudinal waves, of the volume of clay (Vsh) on the basis of the gamma ray and of the effective porosity on the basis of phi and Vsh calculated previously. The fluid tortuosity (tau) is determined using several petrophysical parameters. At the end, the structure incompressibility modulus (Ks), the formation resistivity factor (F), the formation water saturation (Sw), the dimensionless frequency (X), the permeability (KO) and the size of the pores (d) are determined.

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WELL COMPL SERV & WORKOVER

table of contents list of publications

1177585 BALL OPERATED SYSTEM -- WELL COMPL SERV & WORKOVER
BALL DROP WELLHEAD CONTROL APPARATUS; B.McGuire, asr. (Stinger Well Protect Inc).. U.S. 2013/0,153,237A1, p. 6/20/2013, f. 12/20/2011 (Appl. 331,903) (E21B-0034/00). (11 pp)

A ball drop wellhead control apparatus provides a ball controller between a frac ball drop or frac ball injector used to drop frac balls into a frac fluid stream being pumped into a subterranean well.

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1177586 BALL SEALER -- WELL COMPL SERV & WORKOVER
APPARATUS AND METHOD FOR SEALING A PORTION OF A COMPONENT DISPOSED IN A WELLBORE; G.M.Kniffin, J.D.Harkrider, W.L.Anthony and J.S.Jordan, asrs. (JJBM Properties LLC).. U.S. 2013/0,192,828A1, p. 8/1/2013, f. 1/27/2012 (Appl. 359,497) (E21B-0033/13; E21B-0033/12). (14 pp)

An apparatus and method are provided for substantially sealing an opening defined by a hydrocarbon well downhole component, wherein an interior portion of the downhole component is in fluid communication with a formation surrounding the hydrocarbon well. The apparatus includes a deformable plug adaptable to being injected into the wellbore and carried through the wellbore in a fluid. The fluid carrying the deformable plug can flow through the opening and the deformable plug is sized and configured such that at least a portion of the deformable plug can deform to the contour of the opening and seat in the opening. The deformable plug is capable of swelling, hardening, or compressing such that the deformable plug forms a substantially sealed relationship with the hydrocarbon well downhole component such that the interior portion of the downhole component ceases to be in fluid communication with the formation surrounding the well. The deformable plug may be employed as a ball sealer used for perforation plugging.

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1177587 CASING SETTING -- WELL COMPL SERV & WORKOVER
APPARATUS FOR ALIGNING TUBULARS DURING PLACEMENT IN A WELL; S.W.Fournier, Jr., P.P.Huang, J.C.Ivison, R.N.Pullins, J.P.Rains and J.C.Smith, asrs. (Express Energy Svc Oper LP).. U.S. 2013/0,192,817A1, p. 8/1/2013, f. 3/13/2013 (Appl. 802,463) (E21B-0019/24). (8 pp)

Apparatus is provided for aligning tubulars when a drilling rig is used to lower a string of tubulars into a well. A joint of tubular can be moved to a vertical position above a connector to which it is to be joined and placed at the angle where threads on the joint and connector can be joined at low torque without damage to the threads. The apparatus can be used on a variety of drilling rigs and provides a safer environment for workers on the rig. The apparatus may be remotely operated to align tubulars, such as casing, for making threaded connections at the drilling rig floor.

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1177588 CASING STRING DESIGN -- WELL COMPL SERV & WORKOVER
INVESTIGATION OF CASING CONNECTION FAILURE MECHANISMS IN THERMAL WELLS; J.Xie (C-FER Technologies Canada).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-353; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 8 pp)

Thermal recovery methods are widely used for heavy oil and bitumen production. A common feature for the majority of these thermal well applications is the cyclic thermal loading with high peak temperatures that may cause the casing and connection to deform plastically. Typical connection failure mechanisms include structural damage, such as parting, thread rupture, and shoulder plasticity; and serviceability damage, such as leakage. This paper starts with a review of thermal well failures related to casing connection damage. There are basically three classes of connections used in intermediate or production casing: API round, API buttress (and oversized buttress) and proprietary premium connections. Premium connections are often preferred for their generally superior structural and sealability performance in thermal well applications. Based on finite element modeling and analysis of a generic premium connection subjected to various critical load conditions representative of thermal wells, this paper presents an investigation of the occurrence and conditions of potential connection failure mechanisms, such as the loss of structural integrity, fatigue, and leakage during connection installation and service in such thermal well conditions. Based on these failure mechanism investigations, this paper presents recommendations for casing connection design requirements for successful service in thermal well applications.

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1177589 CEMENTING -- WELL COMPL SERV & WORKOVER
EXPERIENCE OF CEMENTING OF GAS WELLS WITH EXTREMELY HIGH RESERVOIR PRESSURE; M.O.Ashrafyan, A.V.Krivoshey, D.V.Antonenko and Yu.V.Grinko (Bureniye NPO).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.30-33, March 2009. (ISSN 0028-2448; In Russian)

The technology of cementing of gas wells with abnormally high reservoir pressure at Pribrezhnaya group of fields of Kranodar Territory, which are one of the most complex with respect to geological conditions, is condisered. The basic requirements for cementing process are presented. Operation results for five wells are given.

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1177590 CEMENT TESTING -- WELL COMPL SERV & WORKOVER
MEASUREMENT OF PROPERTIES OF SAMPLE OF CURING COMPOSITIONS UNDER HIGH PRESSURE; A.P.Bois, J.Saint-Marc, A.Garnier, G.Galdiolo, P.Illing and C.Schroeder, asrs. (Total SA).. U.S. 2013/0,192,382A1, p. 8/1/2013, f. 10/11/2011 (Appl. 878,872), pr. Fr. 10/12/2010 (Appl. 1,058,307) and World 10/11/2011 (Appl. 1,154,473) (G01N-0033/38). (11 pp)

A method for testing a curing composition comprises (1) including a curing composition; (2) injecting the curing composition into a mold; (3) curing the curing composition into a cured composition in the mold at a controlled curing pressure; and (4) measuring at least one physical or mechanical property of the cured sample at a controlled test pressure in the mold, the mold being rigid relatively to the cured sample during the curing step. The method applies to curing compositions in the field of oil extraction and particularly to cement compositions for cementing well casing.

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1177591 EXPANSIBLE SCREEN -- WELL COMPL SERV & WORKOVER
THE TECHNIQUE OF SAND CONTROL WITH EXPANDABLE SCREENS; P.Zhao (Liaohe Oilfield Co).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-214; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 3 pp; Abstract only)

[For information only - meeting paper abstract]

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1177592 EXPENDABLE PERFORATOR -- WELL COMPL SERV & WORKOVER
METHOD AND APPARATUS FOR EXPENDABLE TUBING-CONVEYED PERFORATING GUN; J.Fadul, P.Herman, P.Ringgenberg, R.Moore, M.Fripp, D.Crowdis, J.Hales and B.Powell, asrs. (Halliburton Energy Service).. U.S. 2013/0,192,829A1, p. 8/1/2013, f. 3/13/2013 (Appl. 800,902), pr. U.S. 4/21/2011 (Appl. 61/477,910) and World 4/22/2012 (Appl. 1,234,599) (E21B-0043/11). (19 pp)

Methods and apparatus are presented for a disappearing perforator gun assembly. In a preferred method of perforating a well casing, inserted into the well casing is a tubing conveyed perforator having an outer tubular made from a metallic glass alloy having high strength and low impact resistance. An inner structure is positioned within the outer tubular and holds one or more explosive charges. Upon detonating the explosive charges, the outer tubular is fragmented. The inner structure is preferably also substantially destroyed upon detonation of the one or more explosive charges. For example, the inner structure can be made from a combustible material, corrodible, dissolvable, etc., material. A disintegration-enhancing material is optionally positioned between the outer tubular and the inner structure. Additional embodiments are presented having gun housings which dematerialize upon detonation of the charges.

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1177593 FORMATION EVALUATION -- WELL COMPL SERV & WORKOVER
RESERVOIR AND COMPLETION QUALITY ASSESSMENT IN UNCONVENTIONAL (SHALE GAS) WELLS WITHOUT LOGS OR CORE; R.Akkurt, R.C.A.Prioul and A.E.Pomerantz, asrs. (Schlumberger Canada Ltd; Schlumberger Serv Petrol; Schlumberger Holdings Ltd; Schlumberger Technol BV; Prad Res & Develop Ltd; Schlumberger Technol Corp).. World 2013/155,125A1, p. 10/17/2013, f. 4/10/2013 (Appl. 1,335,869), pr. U.S. 4/13/2012 (Appl. 447,109) (E21B-0049/08; E21B-0049/00). (45 pp)

Embodiments herein relate to a method for recovering hydrocarbons from a formation include (1) collecting and analyzing a formation sample, drilling operation data, and wellbore pressure measurement; (2) estimating a reservoir and completion quality; and (3) performing an oil field service in a region of the formation comprising the quality. In some embodiments, the formation sample is a solid collected from the drilling operation or includes cuttings or a core sample.

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1177594 FRACTURE MAPPING -- WELL COMPL SERV & WORKOVER
METHODS, SYSTEMS AND DEVICES FOR NEAR-WELL FRACTURE MONITORING USING TOMOGRAPHIC FRACTURE IMAGING TECHNIQUES6; J.M.Vermilye and P.A.Geiser, asrs. (Global Geophys Svcs Inc).. U.S. 2013/0,201,787A1, p. 8/8/2013, f. 3/15/2013 (Appl. 831,591), pr. U.S. 3/23/2011 (Appl. 70,442) and U.S. 3/12/2013 (Appl. 61/778,358) (G01V-0001/28). (24 pp)

Described herein are various embodiments of methods and corresponding hardware and software configured to permit the vicinity around and/or near a well to be imaged, where the well is being subjected to, or has been subjected to, fracking operations. The methods and corresponding hardware and software permit the generation of images of near-well fractures or faults resulting from the fracking.

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1177595 FRACTURING FLUID -- WELL COMPL SERV & WORKOVER
NEW AQUEOUS FRACTURING FLUID COMPOSITION AND FRACTURING METHOD IMPLEMENTING THE FLUID [NOUVELLE COMPOSITION AQUEUSE DE FLUIDE DE FRACTURATION ET PROCEDE DE FRACTURATION METTANT EN OEUVRE LE FLUIDE]; C.Favero and N.Gaillard, asrs. (SPCM SA).. World 2013/150,203A1, p. 10/10/2013, f. 3/19/2013 (Appl. 1,350,583), pr. Fr. 4/3/2012 (Appl. 1,253,029) and U.S. 4/19/2012 (Appl. 61/635,534) (C09K-0008/68; C09K-0008/80; C09K-0008/88). (32 pp; In French)

A fracturing fluid is disclosed, comprising, in solution in water, a propping agent and an associative amphoteric polymer, the polymer having a molecular mass of at least 1,000,000 g/mol, and comprising 0.01 to 10 mol.% of at least one cationic monomer derived from acrylamide, 0.09 to 89.99 mol.% of at least one anionic monomer, and 10 to 99 mol.% of at least one non-ionic water-soluble monomer. A fracturing method implementing the fluid is also disclosed.

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1177596 GAS SHUTOFF -- WELL COMPL SERV & WORKOVER
GAS CONTROL TREATMENT WITH GEL IN VARADERO FIELD; F.Archer, M.Reyna, O.Rauseo and D.Tavares (PDVSA Intevep; CUPET).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-575; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 3 pp; Abstract only)

[For information only - meeting paper abstract]

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1177597 GRAVEL PACKING -- WELL COMPL SERV & WORKOVER
DOWNHOLE ISOLATION METHODS AND APPARATUS THEREFOR; J.Broussard, R.Clarke, K.Nutley and B.Nutley, asrs. (Swelltec Ltd).. Europe. 2,610,429A2, p. 7/3/2013, f. 12/24/2012 (Appl. 12,275,221), pr. U.S. 12/23/2011 (Appl. 336,683) (E21B-0033/12; E21B-0043/04). (39 pp)

The invention provides a method and apparatus for use in a wellbore gravel pack operation. The method comprises providing an apparatus in a downhole annulus. The apparatus comprises a mandrel and a swellable element formed from a material selected to increase in volume when exposed to a downhole stimulus. The method comprises placing a gravel pack below the apparatus via the downhole annulus in which the apparatus is located, and placing a gravel pack above the apparatus. Subsequent to placing the gravel packs, the swellable element is increased in volume to create an annular barrier in the wellbore. The invention allows isolation of multiple intervals of a well in a single gravel pack operation using swellable elastomers, and does not rely on the use of shunt tube alternate path systems.

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1177598 HORIZONTAL WELL COMPLETION -- WELL COMPL SERV & WORKOVER
OPTIMIZATION OF SAND CONTROL LINER DESIGNS FOR LEISMER SAGD DEMONSTRATION HORIZONTAL WELLS; J.Xie and T.A.Solvoll (C-FER Technologies Canada; StatoilHydro Canada).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-352; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 8 pp)

The Leismer field is located in the Athabasca oilsands region of northeastern Alberta, one of the largest oilsands deposits in the world. As the first phase of development of the larger Kai Kos Dehseh Oilsands Projects, the Leismer Demonstration Project has been designated to use steam-assisted gravity drainage (SAGD) technology to produce bitumen from 23 horizontal well pairs distributed over four well pads. Since the reservoir is highly unconsolidated, the liners and screens required for the process will be subject to thermally-induced mechanical plastic strain which could cause significant liner deformations and affect production. This paper presents several considerations for optimization of slotted liner and screen designs for the Leismer SAGD wells to provide optimized open flow area (OFA), acceptable sand screen functionality, and sufficient structural capacities to sustain installation and operational loads over the full life of the steam injection and bitumen production wells.

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1177599 HORIZONTAL WELL COMPLETION -- WELL COMPL SERV & WORKOVER
METHOD OF MINIMIZING LINER EXPANSION ISSUES IN HORIZONTAL THERMAL APPLICATIONS; R.Schultz and T.Cavender (Halliburton).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-386; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 12 pp)

Thermal recovery methods used in the exploitation of heavy oil and bitumen reservoirs can create severe expansion problems on liner and production tubular equipment. This is particularly the case in horizontal sandface completion configurations used in steam flood, cyclic steam, and steam-assisted gravity drainage (SAGD) applications. Many single-lateral and multi-lateral horizontal heavy oil wells are produced initially using the cold heavy oil production with sand (CHOPS) method of recovery, where liner expansion is not a concern. However, with proper up-front planning and engineering, these wells could be converted to thermal EOR producers with the addition of thermal expansion devices placed within the liner assembly when initially completed. These expansion devices are engineered to activate with elevated temperatures once the thermal operations begin and do not require mechanical activation or well intervention. Because these devices are deployed with the liner assembly, they must also be able to handle compression, tension, and torque loading across the liner during the deployment phase. This technology can be deployed specifically with the slotted liner / sand screen applications, or be used with production or concentric tubing configurations. This paper presents different wellbore configurations used with various thermal recovery methods.

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1177600 HORIZONTAL WELL COMPLETION -- WELL COMPL SERV & WORKOVER
DESIGN ASPECTS TO CONSIDER DURING DRILLING AND COMPLETION OF WELLS OF THE PILOT TEST IN THE IN SITU COMBUSTION PROJECT, BARE FIELD; D.Vargas, J.Garcia, J.Rodriguez and H.Reverol (Petroleos Venezuela SA).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-526; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 5 pp; Abstract only)

[For information only - meeting paper abstract]

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1177601 HYDRAULIC FRACTURING -- WELL COMPL SERV & WORKOVER
DEVICE AND METHOD FOR LOCATING MICROSEISMIC EVENTS USING ARRAY OF RECEIVERS; E.Rebel and J.Meunier, asrs. (CGG Veritas Services SA).. U.S. 2013/0,158,878A1, p. 6/20/2013, f. 6/22/2012 (Appl. 530,307), pr. U.S. 12/15/2011 (Appl. 61/576,019) (G01V-0001/30; G06F-0019/00). (23 pp)

A device and method are disclosed for locating a microseismic event taking place in a subsurface of the earth. The method includes (1) receiving recorded seismic data S(t, Rc) acquired by a plurality of receivers as a function of time t and a position Rc; (2) receiving a reference signal model SiMo(t, Rc) that corresponds to seismic data recorded by the plurality of receivers if an explosion occurs at an injection point in the subsurface; (3) time correlating the recorded seismic data S(t, Rc) with the signal model SiMo(t, Rc) to determine correlated seismic data DMSS; (4) calculating a detection curve for each of plural cells in a given volume in the subsurface of the earth based on the correlated seismic data DMSS; and (5) determining a seismic location in the volume of the microseismic event based on a largest value of maximums of the detection curves. Stimulated fracturing operations injecting a high-pressure fluid into a geologic formation provide a source of microseismic events which may be used to monitor the progress of the fracturing operation.

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1177602 HYDRAULIC FRACTURING -- WELL COMPL SERV & WORKOVER
METHOD OF INCREASING THE PERMEABILITY OF A SUBTERRANEAN FORMATION BY CREATING A MULTIPLE FRACTURE NETWORK; J.Crews and T.Huang, asrs. (Baker Hughes Inc).. World 2013/155,307A2, p. 10/17/2013, f. 4/11/2013 (Appl. 1,336,176), pr. U.S. 4/12/2012 (Appl. 61/623,515) (E21B-0043/16). (37 pp)

The stimulated rock volume (SRV) of a subterranean formation may be increased by pumping viscous fracturing fluid into the formation in a first stage to create or enlarge a primary fracture, decreasing the pumping in order for the fluid to increase in viscosity within the primary fracture, and then continuing to pump viscous fluid into the formation in a second stage. The fluid pumped into the second stage is diverted away from the primary fracture and a secondary fracture is created. The directional orientation of the secondary fracture is distinct from the directional orientation of the primary fracture. The fluid of the first stage may contain a viscosifying polymer or viscoelastic surfactant or may be slickwater.

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1177603 HYDRAULIC FRACTURING -- WELL COMPL SERV & WORKOVER
A QUANTITATIVE APPROACH TO ANALYZE FRACTURE AREA LOSS IN SHALE GAS RESERVOIRS; H.Lawal, N.Abolo, G.Jackson, V.Sahai and C.Flores (Weatherford; Parsons Brinckerhoff).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166042; Available on CD-ROM; 13 pp)

Since the emergence of the shale gas multi-stage fracture stimulation era, many shale gas operators strive to contact as much reservoir volume from a single well as possible. In the process of optimizing production, completion practices tend to affect already producing wells. Altering the production of an existing well via the stimulation of an offset well, commonly referred to as a frac hit, has been a growing concern. The main driving force in producing any tight formation is the lumped parameter of fracture area and square root of reservoir permeability. Oftentimes during the producing life of a well, there is an apparent decrease or increase in the lumped parameter due to frac hits or refracs (a second fracturing or hydraulic stimulation at a later point in time of the same well), respectively. Previous work shows rate transient analysis as an option to evaluate the impact of frac hits or refracs on a well's productivity; however, a quantitative analysis will require a more detailed study that combines rate transient analysis with numerical modeling to tackle more complicated issues. We propose a performance-based methodology to quantify the amount of area lost (frac hit) or gained (refrac) using analytical approaches that can subsequently be verified using numerical modeling to truly understand the change in stimulated area after the occurrence of a frac hit or a refrac. (Copyright 2013 SPE)

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1177604 HYDRAULIC JACK -- WELL COMPL SERV & WORKOVER
METHOD AND APPARATUS TO PERFORM SUBSEA OR SURFACE JACKING; C.C.Overstreet, S.M.Cunningham and J.E.S.Ward, asrs. (Cudd Pressure Control Inc).. U.S. 2013/0,192,842A1, p. 8/1/2013, f. 1/31/2012 (Appl. 362,810) (E21B-0019/16; E21B-0029/00). (7 pp)

A jack system may provide subsea or surface operation. The jack system includes a top plate and a base plate with at least two pistons disposed between the base and top plate. The pistons are extendable to increase a separation distance between the base and top plate, and the pistons are retractable to decrease the separation distance between the base and top plate. The jack system also includes a bottom slip bowl assembly, a top slip bowl assembly, and rotary assembly. The top slip bowl and rotary assembly are rotatably coupled to the top plate wherein the rotary assembly and the top slip bowl assembly rotate relative to the top plate. The jack, such as a casing jack, snubbing jack or hydraulic jack may be utilized in conjunction with a rig, platform or vessel to perform various oil or gas well operations.

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1177605 INFLOW CONTROL DEVICE -- WELL COMPL SERV & WORKOVER
OPTIMIZED MODELING WORKFLOWS FOR DESIGNING PASSIVE FLOW CONTROL DEVICES IN HORIZONTAL WELLS; S.Gurses and A.Vasper (Schlumberger).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166052; Available on CD-ROM; 10 pp)

The benefits of horizontal wells from both a production and reservoir characterization perspective are well known. With the benefits, however, come several challenges, usually concerning uneven production or injection profiles. Interval control device (ICD) completions have become popular as a method of addressing these problems controlling fluid flow between the reservoir and wellbore or vice versa in horizontal wells. Most ICD devices are passive or fixed once installed downhole, making the design process of these completions very important. This paper describes the elements of the design for ICD completions and workflows that integrate them within an easy to use software environment. The objectives of the completion are discussed and how to deal with potentially contradictory requirements. The advantages of using 3-D reservoir simulation vs. static modeling are listed and workflows making 3-D dynamic methods faster and more accessible explained. The most common ICD design strategies are associated with the reservoir challenges they can address and the quality of the data required. Workflows are introduced for building fit-for-purpose simulation models. (Copyright 2013 SPE)

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1177606 LIGHTWEIGHT CEMENT -- WELL COMPL SERV & WORKOVER
LIGHTWEIGHT HOLLOW PARTICLES FOR USE IN CEMENTING; T.J.Pisklak, E.G.Morillo and Q.Qu.. U.S. 2013/0,153,222A1, p. 6/20/2013, f. 12/16/2011 (Appl. 328,032) (E21B-0033/13; C08K-0007/28; C03B-0019/10; C04B-0038/08; C04B-0014/00). (9 pp)

A lightweight composite having an activated surface contains a lightweight hollow core particle having cement grains which may be adhered to the hollow core or embedded in the surface of the hollow core. The hollow core particle may be prepared from calcium carbonate and a mixture of clay, such as bentonite, and a glassy inorganic material, such as glass spheres, glass beads, glass bubbles, borosilicate glass and fiberglass. A lightweight cement is described.

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1177607 LINER HANGER -- WELL COMPL SERV & WORKOVER
[R] CASE HISTORIES - IMPLEMENTATION OF NEW LINER HANGER TECHNOLOGY IN SOUTH CENTRAL VENEZUELA SIGNIFICANTLY IMPROVES OPERATIONS IN COMPLEX WELLS; C.Jimenez, S.Soto, A.Leon, P.Marval and M.Schoener-Scott (Petroleos Venezuela SA; Halliburton).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-381; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 13 pp) SRLA# 992,992

[For abstract and indexing, see Abstract #992,992]

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1177608 ORGANOSILICON COMPOUND -- WELL COMPL SERV & WORKOVER
WATER-SOLUBLE ORGANOSILICONATE POWDER; D.Schildbach, D.Auer, K.H.Felix and M.Stepp, asrs. (Wacker Chemie AG).. U.S. 2013/0,145,966A1, p. 6/13/2013, f. 7/11/2011 (Appl. 810,676), pr. Ger. 7/21/2010 (Appl. 10,031,624) and World 7/11/2011 (Appl. 1,161,766) (C07F-0007/08). (18 pp)

Organosilanolate powders having a low cation to silicon ratio provide superior hydrophobing ability. The powders may be prepared on an industrial scale by hydrolysis of a silane with a basic salt solution, adding an inert organic solvent, and removing gaseous or alcoholic hydrolysis products by evaporation or distillation, precipitating the organosilanolate as a fine powder.

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1177609 PIPE CUTTING -- WELL COMPL SERV & WORKOVER
MULTI-CYCLE PIPE CUTTER AND RELATED METHODS; S.Hekelaar, asr. (Smith International Inc).. U.S. 2013/0,199,785A1, p. 8/8/2013, f. 3/15/2013 (Appl. 837,667), pr. U.S. 1/21/2011 (Appl. 11,492) (E21B-0029/00). (22 pp)

A downhole cutting tool includes a tool body and a plurality of cutter knife sets. Each of the plurality of cutter knife sets is configured to extend outwardly to separately perform a pipe cutting operation. A first cutter knife set has a diameter in an extended position larger than a diameter in an extended position of a second cutter knife set. A method includes (1) running the downhole cutting tool into a wellbore; (2) deploying the first set of expandable cutting arms to an extended position and engaging the extended expandable cutting arms with a first work piece; (3) rotating the downhole cutting tool and cutting the first work piece; (4) deploying the second set of expandable cutting arms during a single trip into the wellbore to an extended position and engaging the extended expandable cutting arms with a second work piece; and (5) rotating the downhole cutting tool and cutting the second work piece. The downhole cutting tool may be employed in well casing removal operations.

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1177610 PIPE STRAIGHTENING -- WELL COMPL SERV & WORKOVER
CAPABILITY OF STRAIGHTENING DEFORMED PIPES AND RODS STRAIGHTENING; S.V.Romanenko and A.A.Klimchenko (Gubkin State Oil Gas Univ; Neftegazdetal).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.76-78, March 2009. (ISSN 0028-2448; 3 refs; In Russian)

Theoretical and experimental research for the behavior of a material of bent bottomhole pumping rods is executed. Questions of the capability of their straightening are considered. Carrying out a double straightening in view of features of operation conditions, product geometry, and change of mechanical and deformation characteristics of a material is proved.

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1177611 SLIP JOINT -- WELL COMPL SERV & WORKOVER
CONTRACTION JOINT SYSTEM; H.Phan and J.Algeroy, asrs. (Schlumberger Technol Corp).. U.S. 2013/0,199,799A1, p. 8/8/2013, f. 12/20/2012 (Appl. 723,032), pr. U.S. 2/8/2012 (Appl. 61/596,278) (E21B-0017/04). (16 pp)

A system and methodology facilitates conveyance of a tool, e.g., a downhole completion or completion component, via a tool string. The tool string comprises a contraction joint designed to contract if the tool incurs sufficient axial loading. The contraction joint may comprise an outer housing and a mandrel slidably received in the outer housing. The contraction joint also comprises a resettable locking member which selectively releases the mandrel with respect to the outer housing to contract the contraction joint when under sufficient axial loading.

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1177612 SLOTTED LINER COMPLETION -- WELL COMPL SERV & WORKOVER
DETERMINATION OF THE CONFIGURATION OF OPTIMAL SLOT LINER (STRAIGHT VS. KEYSTONE) FOR SAND CONTROL IN HORIZONTAL WELLS, PERTAINING TO THE UNIT OF EXTRA-HEAVY OIL, DISTRICT OF SAN TOME, EASTERN RIVER BASIN OF VENEZUELA; W.Quijada and D.Oliveira (Petroleos Venezuela SA; PDVSA Intevep).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-533; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 6 pp)

There is a high demand for horizontal well liners with keystone slots in both cold and thermal recovery operations. The shape of keystone slots is said to slow sand plugging on the liners, thus providing a longer production cycle. Since it was thought that the production loss in the San Tome district in PDVSA was caused by plugging of the conventional liners used in this district, a literature review and laboratory testing was initiated. These studies indicated that the conventional slotted liners have a high tendency to become clogged in the presence of highly viscous crude, generating high pressure drops across the slots. The results for keystone slots, on the other hand, showed anti-plugging properties and a lower pressure drop through the slots. The recommendation from this study was to start installing slotted liners with keystone slots in the Bare Field area of the San Tome district.

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1177613 STEAM INJECTION -- WELL COMPL SERV & WORKOVER
TAML LEVEL 5 SEALED JUNCTIONS OFFER SOLUTIONS FOR THERMAL PRODUCTION OF HEAVY OIL WITH MULTILATERAL WELLS; S.R.Fipke (Halliburton).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-301; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 8 pp)

Multilateral wells have been used in heavy oil fields in Canada and Venezuela for more than 15 years. They allow heavy oil producers to access more reserves per well and have dramatically increased production from heterogeneous and geologically complex reservoirs. In some of these same fields, operators use steam injection to recover as much as 50% of the OOIP. Until recently, it was not possible to manage steam injection in a multilateral well because the wellbore junction was not sealed for high temperatures and pressures. Recent innovations in TAML Level 5 multilateral junction technologies now allow a sealed multilateral junction to be installed in cyclic steam injection wells. In theory, SAGD could be designed using a single multilateral well from one location, rather than the current practice of drilling separate, parallel wellbores from more than one surface location. Steam could be injected into the upper branch of a multilateral well and the heated oil produced from a lower branch. The ability to complete multilateral wells for thermal production will be an important technology in heavy oil development. Potential applications of multilateral technology (MLT) include multilateral steamflood patterns and SAGD (steam-assisted gravity drainage) wells.

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1177614 STRUCTURE -- WELL COMPL SERV & WORKOVER
SUPPORT APPARATUS FOR WELLBORE TOOLS; C.L.Bryant, Jr. and D.J.Ruttley.. U.S. 2013/0,145,718A1, p. 6/13/2013, f. 12/12/2011 (Appl. 200,136) (E04B-0001/19). (20 pp)

An apparatus for supporting tubular goods and wellbore tools can be used to perform downhole operations in oil and gas wells. The support apparatus has a minimal footprint and requires minimal surface area. The support apparatus can be used to jack and remove casing and other pipe, as well as other rigless downhole well operations.

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1177615 TUBING PACKER -- WELL COMPL SERV & WORKOVER
SELECTIVE SET MODULE FOR MULTI-STRING PACKERS; J.B.Hathcoat, T.T.Nguyen and A.C.Machala, asrs. (Weatherford/Lamb Inc).. Europe. 2,602,424A2, p. 6/12/2013, f. 12/4/2012 (Appl. 12,195,565), pr. U.S. 12/7/2011 (Appl. 313,603) (E21B-0033/122). (12 pp)

In order to overcome the need to completely disassemble a dual- or even possibly a multiple-string packer on the rig floor and avoid the delays and potential for failure that such a rebuild entails, a dual-string packer may be provided with a crossover module located such that fluid communication may be provided from any tubular bore to the internal shifting chamber without completely disassembling the dual-string packer. An indexing cassette may be attached to the through-tubing mandrels at or near the bottom or lower end of the dual-string packer.

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1177616 TUBING (WELL) -- WELL COMPL SERV & WORKOVER
LINED DOWNHOLE OILFIELD TUBULARS; R.H.Davis and N.R.Hennessey.. U.S. 2013/0,192,685A1, p. 8/1/2013, f. 1/31/2012 (Appl. 362,368) (F15D-0001/00). (15 pp)

A method for providing a string of tubing for installation in a well comprises installing a string of tubing within a wellbore, wherein the string of tubing comprises a plurality of elongated tubular members and at least one cylindrical liner comprising a polymer. At least one of the plurality of elongated tubular members includes a cylindrical wall having an inner surface and an outer surface. The cylindrical liner has (1) an outer surface that is disposed in adjacent contact with the inner surface of the elongated tubular member; (2) an inner surface that defines the tubing borehole through which fluids are capable of flowing; and (3) a scrolled configuration.

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1177617 VIBRATION DAMPER -- WELL COMPL SERV & WORKOVER
APPARATUS AND METHOD FOR REDUCING VIBRATION IN A BOREHOLE; J.G.King, asr. (Baker Hughes Inc).. U.S. 2013/0,153,243A1, p. 6/20/2013, f. 12/19/2011 (Appl. 330,184) (E21B-0043/00; E21B-0033/12). (10 pp)

In one aspect, an apparatus for use in a borehole includes a tubular disposed in the borehole. The apparatus also includes an expandable device disposed outside the tubular and proximate a selected device, the expandable device including a material that causes the expandable device to expand from a first shape to a second shape when exposed to an activating fluid. In addition, the expandable device reduces vibration of the selected device when the expandable device is in the second shape. During an injection operation, the instrumentation and external tubing are subjected to vibration. Downhole applications include producing, fracturing and acidizing.

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1177618 WELL COMPLETION -- WELL COMPL SERV & WORKOVER
WELL COMPLETION FOR IN SITU HEATING OIL RECOVERY TECHNIQUE; O.Chacon (PDVSA Intevep).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-573; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 9 pp)

Steamflood wells must work under high temperatures and require special thermal well completions. This paper presents design considerations for different completion elements which are needed to assure reliable performance. In the case of the cyclic steam stimulation, the well completions experience cyclic thermal stress (expansion and contraction) and expansion joints are used to reduce this effect. In the case of fireflooding, the well completions are subjected to high temperature and a corrosive environment, and the material selection is most important. An analysis of materials selection and thermal loads was made for the Bare Field in southeastern Venezuela where a fireflood pilot project is planned. This analysis demonstrated the importance of the gas combustion composition, specifically CO2 and H2S partial pressures, to select the suitable material to withstand the corrosive environment. In addition, the simulation of thermal loads using specialized software was used to select the grade and weight of tubing.

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1177619 WELL COMPLETION -- WELL COMPL SERV & WORKOVER
WELLBORE COMPLETION; D.G.Purkis and S.Red, asrs. (Petrowell Ltd).. World 2013/150,304A2, p. 10/10/2013, f. 4/3/2013 (Appl. 1,350,880), pr. Gr. Brit. 4/3/2012 (Appl. 1,205,985) (E21B-0034/14). (95 pp)

The present application relates to systems and methods for use in wellbore completion. Embodiments of the invention relate to a method and system for operating a downhole tool, such as a downhole tool associated with well fracturing.

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1177620 WELL SCREEN -- WELL COMPL SERV & WORKOVER
FULL-SCALE TESTING OF A NEW SAND CONTROL SCREEN FOR SAGD APPLICATIONS; K.A.Hamilton, G.Woiceshyn and I.Caulfield (C-FER Technologies; Absolute Completion; Schlumberger).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-373; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 10 pp)

A new sand control screen has been developed that is well suited for horizontal wells in thermal applications, such as steam-assisted gravity drainage (SAGD). Following a finite element analysis (FEA) study, a full-scale mechanical test program (described herein) was executed to measure the structural performance of individual fusion bonded metal laminate (FBML) cartridges, as well as the performance of the entire system. The test program comprised three parts: (1) cartridge ejection tests; (2) full-scale burst tests; and (3) full-scale thermal cyclic loading tests. The cartridge ejections tests measured the internal force required to eject individual cartridges from the base pipe at room temperature (20°C), and at two elevated temperatures (150° and 300°C) to determine the effect of temperature on cartridge retention strength. This paper presents the results of the mechanical test program and compares these results with the predictions generated by the previous FEA study performed on this new sand control system.

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1177621 WELL STIMULATION -- WELL COMPL SERV & WORKOVER
COMPLEX TECHNOLOGY OF PERFORATION WITH BOTTOMHOLE FORMATION ZONE TREATMENT AND HYDRODYNAMIC SUPPORT; A.F.Kovalev, G.D.Likhovol, R.A.Shakirov and N.E.Uljanov (STF PerfoTech; Surgutneftegaz).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.40-43, March 2009. (ISSN 0028-2448; 6 refs; In Russian)

The complex works technology, combining in one cycle the pipes perforation, bottomhole formation zone treatment, and thermohydrodynamic research for an estimation of efficiency of the completed treatment, is offered. It is marked, that the technology is successfully tested in the field conditions. Results of works in two wells are given.

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1177622 WELL TOOL -- WELL COMPL SERV & WORKOVER
SUBTERRANEAN WELL TOOLS HAVING NONMETALLIC DRAG BLOCK SLEEVES; C.Yin, asr. (Halliburton Energy Service).. U.S. 2013/0,192,819A1, p. 8/1/2013, f. 1/26/2012 (Appl. 359,229) (E21B-0023/00). (9 pp)

Disclosed is a drag block assembly for use on a downhole tool for location in a cased wellbore. The tool has a hollow mandrel for suspension from a tubing string. The drag block, slips and packing elements mounted on the mandrel are moveable between the run and set positions by movement of the drag block, while engaging a lug on the mandrel. The drag block assembly comprises longitudinally spaced rings comprising resilient material connected together by longitudinally extending members. The downhole tool may be employed in setting packers, plugs, liner hangers and like tools utilizing a gripping means to secure the tool in position in the wellbore.

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1177623 WELL TOOL -- WELL COMPL SERV & WORKOVER
METHOD AND APPARATUS FOR PRESSURE-ACTUATED TOOL CONNECTION AND DISCONNECTION; J.H.Hales, E.A.Eaton, J.D.Burleson and J.P.Rodgers, asrs. (Halliburton Energy Service).. World 2013/151,527A1, p. 10/10/2013, f. 4/2/2012 (Appl. 1,231,834) (E21B-0017/02; E21B-0019/16). (44 pp)

A method is presented for connecting and disconnecting sections of a work string for use in a subterranean wellbore. A preferred method of disconnecting includes the steps of positioning a stinger and a downhole tool assembly of a work string adjacent upper and lower sealing rams, such as in a BOP and lubricator assembly. The sealing rams are closed, defining a first and second pressure zone adjacent the tool. A differential pressure is applied across the pressure zones, moving a piston element in the tool assembly. Axial movement of the piston element causes relative rotational movement of cooperating locking elements. In one embodiment, the locking elements are rotated to an unlocked position and then move relative to one another axially in response to a biasing spring. The relative axial movement of the locking elements results in unlatching of a latching assembly, thereby disconnecting the tool and stinger.

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1177624 WELL WORKOVER -- WELL COMPL SERV & WORKOVER
RESEARCH AND APPLICATION OF WORKOVER TECHNIQUES FOR COMPLEX STRUCTURAL WELLS; S.Houli (Liaohe Oilfield).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-212; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 5 pp; Abstract only)

[For information only - meeting paper abstract]

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PRODUCING OIL & GAS

table of contents list of publications

1177625 CAMPECHE GULF -- PRODUCING OIL & GAS
FIELD DEVELOPMENT PLANNING FOR OFFSHORE EXTRA-HEAVY OIL IN THE GULF OF MEXICO; G.Hernandez-Garcia and J.Anguiano-Rojas (PEMEX Explor & Prod).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-315; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 5 pp; Abstract only)

[For information only - meeting paper abstract]

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1177626 CHEMICAL INJECTION -- PRODUCING OIL & GAS
AUTOMATIC CHEMICAL TREATMENT SYSTEM WITH LIQUID LEVEL SENSOR IN CHEMICAL TANK FOR CALIBRATION AND CHEMICAL DISPENSING RATE CONTROL; R.N.Ayres.. U.S. 2013/0,153,231A1, p. 6/20/2013, f. 12/15/2011 (Appl. 326,551) (E21B-0043/16; G05D-0009/12). (8 pp)

A wellbore chemical treating system includes a storage vessel for containing a treating chemical. A chemical dispenser is in fluid communication between an outlet of the vessel and a well for selectively controlling the flow of the chemical from the vessel to the well. A liquid level sensor is disposed in the storage vessel. A controller is in signal communication with the liquid level sensor and is configured to operate the chemical dispenser. The controller is configured to adjust an operating time of the chemical dispenser based on changes in a liquid level measured by the liquid level sensor over a selected period of time. Chemical treatment systems may be employed to control scale buildup, reduce or remove solid hydrocarbon deposits and inhibit corrosion of metal components in the wellbore.

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1177627 COLD PRODUCTION -- PRODUCING OIL & GAS
COLD HEAVY OIL PRODUCTION SYSTEM AND METHODS; J.P.Young, W.L.Mathews and M.Pietrobon, asrs. (BP Corp North America Inc).. World 2013/155,445A2, p. 10/17/2013, f. 4/12/2013 (Appl. 1,336,420), pr. U.S. 4/13/2012 (Appl. 61/624,053) (E21B-0043/12). (23 pp; Also assigned to J.P.Young, W.L.Mathews and M.Pietrobon)

A system for producing hydrocarbons and sand from a formation includes a wellbore having a substantially horizontal portion. In addition, the system includes a liner disposed in the substantially horizontal portion. The liner has a longitudinal axis and includes a plurality of slots. Each slot is configured to pass sand from the formation into the wellbore. Further, the system includes a production string extending through the wellbore. Still further, the system includes a pump disposed at a downhole end of the production string in the liner. The pump has a central axis, an outlet coupled to the downhole end of the production tubing, and an inlet distal the production string. The pump is configured to pump hydrocarbons and sand from the formation to the surface. The central axis of the pump is oriented at an angle alpha measured downward from vertical. The angle is between 60° and 90°.

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1177628 COMPUTER ASSISTED DESIGN -- PRODUCING OIL & GAS
PLANT DESIGN USING PLANT-4D; A.V.Fedorov (CSoft Engineering).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.82-86, March 2009. (ISSN 0028-2448; In Russian)

This article introduces 4D technology, which is the harmonious evolution of three-dimensional CAD systems used in the oil and gas industry. All article materials illustrated by PLANT-4D software usage are among the best 4D technology implementations in the world.

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1177629 CONTROL VALVE -- PRODUCING OIL & GAS
VALVES WITH VALVE CLOSING MEMBER ATTACHED TO THE ACTUATED COUNTER-SEAT AND RELATED METHODS; R.Bagagli and L.Tognarelli, asrs. (Nuovo Pignone SpA).. U.S. 2013/0,160,641A1, p. 6/27/2013, f. 12/14/2012 (Appl. 714,460), pr. Italy 12/22/2011 (Appl. 110,072) (F15B-0021/00; F16K-0025/00). (12 pp)

A valve assembly in a reciprocating compressor used in the oil and gas industry is provided. The valve assembly comprises an actuator configured to a valve actuating motion and a valve. The valve has (1) a valve seat comprising an inlet port configured to allow a fluid to flow through the valve seat; (2) a counter-seat comprising an outlet port configured to allow the fluid to flow through the counter-seat; and (3) a valve closing member attached to the counter-seat and configured to cover the inlet port when the counter-seat is in a closed position. The counter-seat is configured to receive the valve actuating motion and to move between the closed position and an open position in which the valve closing member does not cover the inlet port, thereby selectively allowing the fluid to flow on a flow path which comprises the inlet port and the outlet port.

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1177630 CONTROL VALVE -- PRODUCING OIL & GAS
VALVE ASSEMBLY; O.A.Mazyar, asr. (Baker Hughes Inc).. U.S. 2013/0,192,852A1, p. 8/1/2013, f. 1/30/2012 (Appl. 361,039) (E21B-0034/06; E21B-0031/06). (6 pp)

A downhole valve assembly includes at least one membrane permeable to a flow of a downhole fluid, the at least one membrane defining a passage through a chamber. A quantity of particles is disposed in the chamber and the at least one membrane is impermeable to the particles. The particles are responsive to a magnetic field. At least one magnetic element is operatively arranged to produce the magnetic field for enabling the at least one magnetic element to selectively move the particles between a first position at which the particles impede the flow of the downhole fluid through the at least one membrane and a second position at which the particles do not impede the flow of the downhole fluid through the at least one membrane. A method of controlling a flow of fluid is also included. For example, the elimination of water during the production of hydrocarbons is often desired.

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1177631 ELASTOMER -- PRODUCING OIL & GAS
RAPID GAS DECOMPRESSION-RESISTANT FLUOROELASTOMER COMPOSITIONS AND MOLDED ARTICLES; R.R.Campbell, asr. (Greene Tweed Delaware Inc).. U.S. 2013/0,202,838A1, p. 8/8/2013, f. 2/4/2013 (Appl. 759,028), pr. U.S. 2/3/2012 (Appl. 61/594,999) (C08L-0027/22). (9 pp)

Rapid gas decompression (RGD) resistant fluoroelastomeric compositions include a cureable fluoropolymer having a cure site monomer with at least one functional group capable of curing with a peroxide curative. The compositions include a bisphenyl-based curative and an organic peroxide curative and an organic peroxide co-curative. The fluoroelastomeric compositions have a ratio of the bisphenyl-based curative to the organic peroxide co-curative of about 0.25:1 to about 1.5:1 and a ratio of the bisphenyl-based curative to the organic peroxide of about 0.5:1 to about 1.5:1. Such compositions can be formed into seals meeting RGD industry standards in a variety of sizes, up to and/or exceeding 5 mm in thickness or cross-sectional diameter. The elastomers have application to the oil industry where seals and other articles formed of such elastomers can encounter long soak times in high-pressure gases such as carbon dioxide and methane.

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1177632 ELECTRIC CABLE -- PRODUCING OIL & GAS
ESP POWER CABLES; D.A.Favereau, J.Driebeek and M.Ang, asrs. (E I DuPont de Nemours & Co).. U.S. 2013/0,153,260A1, p. 6/20/2013, f. 12/14/2012 (Appl. 715,011), pr. U.S. 12/19/2011 (Appl. 61/577,368) (H01B-0007/18; H01B-0009/00). (13 pp)

An electrical submersible pump (ESP) power cable for use in oil wells is provided, comprising at least two electrical conductors, a first fluoropolymer layer surrounding each of the at least two electrical conductors, an outer metal armouring, wherein the first fluoropolymer layer surrounding each of the at least two electrical conductors is composed of at least one fluoropolymer chosen among ETFE (ethylene tetrafluoroethylene copolymer), PFA (perfluoroalkoxy copolymer), FEP (fluorinated ethylene propylene copolymer) and/or mixtures thereof.

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1177633 ELECTRIC MOTOR -- PRODUCING OIL & GAS
SYSTEMS AND METHODS FOR WIRE CONTAINMENT WITHIN AN ELECTRIC MOTOR; J.M.Knapp, S.A.Cain, M.R.Rumbaugh and C.A.Prieto.. U.S. 2013/0,154,431A1, p. 6/20/2013, f. 12/20/2011 (Appl. 330,985) (H02K-0003/48; H02K-0015/085). (11 pp)

Systems and methods are disclosed for the construction of electric motors, where expandable material is inserted into the slots in which magnet wires are positioned and expanded in the slots to mechanically restrain the wires. One embodiment comprises a downhole electric motor such as might be used in an electric submersible pump (ESP) system. The motor has a stator with multiple slots in which magnet wires are positioned. A slot liner is positioned in each slot and an expansion pad is positioned in each slot between the slot liner and the slot wall nearest the bore of the stator. The wires are positioned inside the slot liner. When the motor is almost completely assembled, it is filled with oil. Some of the oil is absorbed by the expansion pads, which then expand to fill the unoccupied volume in the slots, thereby restraining the movement of the wires within the slots.

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1177634 ELECTRIC MOTOR -- PRODUCING OIL & GAS
MONITORING FIBER FOR A MACHINE AND METHOD OF INSTALLATION; C.W.Stoesz, asr. (Baker Hughes Inc).. U.S. 2013/0,192,821A1, p. 8/1/2013, f. 8/1/2012 (Appl. 563,880), pr. U.S. 8/26/2011 (Appl. 61/527,654) (E21B-0047/00; E21B-0004/04). (9 pp)

An electric machine assembly and a method of installing an electric machine assembly are disclosed. The electric machine includes a downhole electric machine and a fiber operatively arranged at least partially through a housing of the electric machine for sensing at least one parameter of the electric machine assembly. Electric submersible pump (ESP) motors may be monitored for hot spots using optical fiber as a distributed temperature sensing (DTS) device.

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1177635 ELECTRIC MOTOR -- PRODUCING OIL & GAS
STATOR MAGNET WIRE END COIL RETENTION SYSTEM; J.M.Knapp, asr. (Baker Hughes Inc).. U.S. 2013/0,200,745A1, p. 8/8/2013, f. 2/4/2013 (Appl. 758,653), pr. U.S. 2/3/2012 (Appl. 61/594,741) (H02K-0003/50; H02K-0015/03). (13 pp; Also assigned to J.M.Knapp)

The invention includes a retention system and method for stator magnet wires. In embodiments, the retention system includes a packing ring that can swell to a larger size following installation. In embodiments, the lubricant used in the motor causes the packing ring to swell. When the packing ring swells, it exerts pressure against the end turns of the stator magnet wires, and can contour to the shape of the wires so that there are no pressure points on the wires. A rigid support ring can be positioned concentric with the packing ring so that the packing ring does not swell toward the axis of the motor housing. The apparatus relates to a stator for an electric motor used in electrical submersible pumps in a wellbore.

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1177636 ELECTRIC POWER -- PRODUCING OIL & GAS
TRANSMITTING ELECTRICAL POWER AND COMMUNICATION SIGNALS; S.Puchiano, S.L.C.Simpson, J.Davis, H.Smart and G.Morley, asrs. (Vetco Gray Controls Ltd).. Europe. 2,602,941A1, p. 6/12/2013, f. 12/7/2011 (Appl. 11,192,473) (H04B-0003/54). (11 pp)

A system for transmitting electrical power and communication signals comprises (1) a transmission line; (2) a source of electrical power for supplying electrical power to the transmission line; (3) first communication means for supplying communication signals to the transmission line; (4) power extraction means for extracting and using electrical power from the transmission line; (5) second communication means for receiving communication signals from the transmission line; and (6) control means for controlling operation of the system in such a way that, in use of the system, the power source supplies electrical power to the transmission line for respective periods of time which are different from respective periods of time in which the first communication means supplies communication signals to the transmission line. The system may be employed in supplying power and communications to subsea producing equipment through an umbilical cable.

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1177637 ELECTRIC WELL PUMP -- PRODUCING OIL & GAS
MONITORING FLOW PAST SUBMERSIBLE WELL PUMP MOTOR WITH SAIL SWITCH; L.H.Burleigh, asr. (Baker Hughes Inc).. U.S. 2013/0,199,775A1, p. 8/8/2013, f. 2/8/2012 (Appl. 368,809) (E21B-0047/00; F04D-0013/10). (7 pp)

An electric submersible well pumping system (ESP) has a sail switch to measure fluid speed within the wellbore in the areas surrounding the motor to thereby determine fluid speed adjacent the motor. A controller controls the operation of the motor based on the inputs of the sail switch to thereby avoid overheating the motor to preserve motor longevity. The sail switch has a paddle that switches from a first toggle position to a second toggle position in response to a selected fluid speed.

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1177638 ELECTROPLATING -- PRODUCING OIL & GAS
AMORPHOUS NICKEL PHOSPHORUS ALLOYS FOR OIL AND GAS; R.Jones.. U.S. 2013/0,153,432A1, p. 6/20/2013, f. 11/2/2012 (Appl. 667,758), pr. U.S. 11/2/2011 (Appl. 61/554,927) (C25D-0003/56). (10 pp)

There is disclosed a system and method for applying an amorphous NiP alloy coating on pipes and rods, particularly for use in the oil and gas industries to inhibit corrosion. In an embodiment, the method comprises applying an amorphous nickel phosphorus or NiP alloy coating to pipes and rods for use in oil and gas industries, comprising (1) preparing a Watt's-type nickel phosphorus (NiP) plating bath solution utilizing a Watt's-type nickel electrolyte containing hypophosphorous acid; (2) maintaining the plating bath solution temperature at between 120°F and 170°F adjusted to regulate phosphorus content over 11%; (3) regulating a pH level of the plating bath solution between 1.0 and 3.0 utilizing sulphuric acid; and (4) controlling the cathode current density in the range of 10-100 amps/sq/ft. Significant cost savings may be realized by using an electroplated nickel-phosphorus alloy over regular carbon steel alloy components at sufficient thickness to be pore-free, replacing the use of more expensive components made of stainless steel or nickel-base alloys.

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1177639 FIELD DEVELOPMENT -- PRODUCING OIL & GAS
STRATEGY OF DEVELOPMENT OF AN OIL-AND-GAS COMPLEX OF SIBERIA; A.G.Korzhubaev, I.V.Filimonova, L.V.Eder and I.A.Sokolova (Russian Academy Sciences; VNIPineft).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.14-17, March 2009. (ISSN 0028-2448; In Russian)

The modern state of an oil-and-gas complex of Siberia is considered in the article. Strategy of development of an oil, gas, oil-and-gas refining and oil-and-gas chemical industry of Russia up to 2035 in view of consequences of world financial crisis is presented. The target indicators of realization of the given strategy are given.

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1177640 FISCHER TROPSCH PROCESS -- PRODUCING OIL & GAS
HYPERGRAVITY ROTATING PACKED BED CATALYTIC REACTOR AND APPLICATION THEREOF FOR MODULATING DISTRIBUTION OF FISCHER-TROPSCH PROCESS SYNTHETIC PRODUCT; J.Chen, Y.Zhang, G.Chu and H.Zou, asrs. (Beijing Univ Chem Technol; Beijing Sci Technol Co Ltd).. World 2013/143,243A1, p. 10/3/2013, f. 7/23/2012 (Appl. 1,279,015) (B01J-0008/10; C10G-0002/00). (24 pp; In Chinese)

A hypergravity rotating packed-bed catalytic reactor and an application thereof for modulating the distribution of a Fischer-Tropsch process synthetic product are disclosed. The reactor comprises a sealed reactor housing, a rotor having fixed thereto catalyst bed layers, a rotary shaft, an end cap, a reactant inlet, and a product outlet. Arranged within the rotor are multiple layers of the concentric ring catalyst bed layers. Interlayer heat exchange sections are distributed between every two layers. The interlayer heat exchange sections are concentric rings consisting of multiple casing pipes or thermal pipes surrounding the center of the rotor. Arranged on the end cap are a heat transfer medium inlet and outlet. Arranged on the rim of the rotor is a blade. The reactor is applicable in modulating the distribution of the Fischer-Tropsch process synthetic product.

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1177641 GAS LIFT EQUIPMENT (WELL) -- PRODUCING OIL & GAS
GAS LIFT SYSTEM HAVING EXPANDABLE VELOCITY STRING; W.C.Lane and D.L.Banta, asrs. (Weatherford/Lamb Inc).. U.S. 2013/0,199,794A1, p. 8/8/2013, f. 2/8/2012 (Appl. 368,564) (E21B-0043/00; E21B-0034/00). (15 pp)

A velocity string deploys in production tubing of a gas well (or a gassy oil well) to help lift fluid toward the surface. The velocity string reduces flow area in the production tubing so that a critical flow velocity can be reached to lift liquid. Over time, the reservoir pressure and resulting gas flow may decrease such that less liquid is produced toward the surface. At such a stage, operators then expand the velocity string to further decrease the flow area in the production tubing, which can produce the needed critical flow velocity to allow produced liquid to be lifted toward the surface.

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1177642 GAS LIQUIDS CONVERSION -- PRODUCING OIL & GAS
PROCESSES AND SYSTEMS FOR OXIDIZING AQUEOUS METAL BROMIDE SALTS; S.A.Kurukchi, A.Moodley and Y.Liu, asrs. (Marathon GTF Technol Ltd).. U.S. 2013/0,156,681A1, p. 6/20/2013, f. 12/4/2012 (Appl. 705,111), pr. U.S. 12/19/2011 (Appl. 61/577,386) (C01B-0007/09; C07C-0001/30). (10 pp)

Processes and systems are disclosed that include use of a packed wet oxidation reactor for oxidizing aqueous metal bromide salts in a bromine-based process for converting lower molecular weight alkanes to higher molecular weight hydrocarbons. A stream comprising a dissolved-metal bromide salt may be oxidized in a wet oxidation reactor comprising a packed section to produce at least a partially oxidized liquid stream comprising oxidized products of the metal bromide salt and a gaseous bromine stream comprising elemental bromine. One technique for converting natural gas to higher molecular weight hydrocarbons is a bromine-based process.

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1177643 GAS LIQUIDS CONVERSION -- PRODUCING OIL & GAS
PROCESS FOR PRODUCTION OF HYDROCARBONS WITH CATALYST CONDITIONING; M.C.Marion, F.Diehl and F.Hugues, asrs. (IFP Energies Nouvelles).. U.S. 2013/0,158,139A1, p. 6/20/2013, f. 12/12/2012 (Appl. 712,232), pr. Fr. 12/14/2011 (Appl. 1,103,862) (C10G-0002/00). (7 pp)

A method for continuous production of hydrocarbons from synthesis gas in the presence of a cobalt-based catalyst comprises providing synthesis gas from a source of synthesis gas in a Fischer-Tropsch synthesis reactor. The method also includes (1) conditioning the catalyst in reduced state in a conditioning reactor by contact with a flow of reducing gas from a synthesis gas source supplying the synthesis reactor, the reducing conditioning gas comprising carbon monoxide (CO) or a mixture comprising hydrogen (H2) and carbon monoxide (CO), the H2/CO molar ratio of which is between 0.1 and 0.9, at a temperature between 200°C and 500°C, and a total pressure between 0.1 and 5 MPa and under a gas flow between 1 and 20 NI/h/g of catalyst to be treated; and (2) supplying the reduced catalyst conditioned in step 1 to the synthesis reactor.

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1177644 GAS LIQUIDS CONVERSION -- PRODUCING OIL & GAS
METHOD FOR PRODUCING HYDROCARBONS WITH CONTINUOUS LOADING OF THE CATALYST [PROCEDE DE FABRICATION D'HYDROCARBURES AVEC CHARGEMENT EN CONTINU DU CATALYSEUR]; M.C.Marion, F.Diehl and F.Hugues, asrs. (IFP Energies Nouvelles).. Europe. 2,604,338A1, p. 6/19/2013, f. 11/14/2012 (Appl. 12,290,391), pr. Fr. 12/14/2011 (Appl. 1,103,861) (B01J-0023/75; B01J-0037/16; B01J-0037/18; C10G-0002/00). (14 pp; In French)

Synthesis gas is reacted in the presence of a catalyst in Fischer-Tropsch reactor to produce hydrocarbons. A catalyst precursor comprising cobalt oxide is charged in a reduction reactor and reduced by contacting with a reducing gas comprising hydrogen and/or carbon monoxide, and the reduced catalyst is filled in the reactor.

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1177645 GAS LIQUIDS CONVERSION -- PRODUCING OIL & GAS
PRODUCTION OF LIQUID HYDROCARBONS; R.J.Hyman, asr. (Ingen GTL Ltd).. World 2013/150,319A1, p. 10/10/2013, f. 4/5/2013 (Appl. 1,350,898), pr. Gr. Brit. 4/5/2012 (Appl. 1,206,196) (C10G-0035/04; C10L-0001/06; C10G-0045/58; C10L-0001/08). (29 pp)

The invention relates to a process for the conversion of hydrogen and one or more oxides of carbon to hydrocarbons, which process comprises (1) contacting hydrogen and one or more oxides of carbon with a catalyst in a reaction zone; and (2) removing from the reaction zone an outlet stream comprising unreacted hydrogen, unreacted one or more oxides of carbon and one or more hydrocarbons, and feeding the outlet stream to a separation zone in which the outlet stream is divided into at least three fractions. A first fraction predominantly comprises unreacted hydrogen, unreacted one or more oxides of carbon and hydrocarbons having from one to four carbon atoms, a second fraction predominantly comprises hydrocarbons having five to nine carbon atoms, at least a portion of which hydrocarbons having from five to nine carbon atoms are olefinic, and a third fraction predominantly comprises hydrocarbons having 10 or more carbon atoms, characterised in that at least a portion of the second fraction is recycled to the reaction zone.

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1177646 GAS OIL SEPARATOR -- PRODUCING OIL & GAS
EXPERIENCE OF APPLICATION AND PROSPECT OF UPGRADING OF OIL AND GAS SEPARATORS; L.M.Milshtejn (MNTK Topenergomashprom).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.88-91, March 2009. (ISSN 0028-2448; 7 refs; In Russian)

Experience of separators operating in oilfields is generalized. The volumetric way to drain is applied and the parallel installation of separator pairs at a different level, resulting in reduction of the separator flooding, is realized. The fixed fluid level control, that has allowed us to lower the stroke of fluid level regulators and essentially to increase the volume of separated fluid, is used. The vertical oil and gas separator B-NGS, combining functions of serially used oil and gas and gas separators, is developed.

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1177647 GAS PROCESSING PLANT -- PRODUCING OIL & GAS
NATURAL GAS FRACTIONAL DISTILLATION APPARATUS; H.B.Yoon, asr. (Samsung Heavy Ind Co Ltd).. World 2013/151,220A1, p. 10/10/2013, f. 10/8/2012 (Appl. 1,208,137), pr. Korea 4/3/2012 (Appl. 2012-0,034,192) (C10L-0003/10). (34 pp; In Korean)

Disclosed is a natural gas fractional distillation apparatus, comprising (1) a gas-liquid separator into which condensed natural gas flows and which separates the condensed natural gas into a vapor stream and a liquid stream; (2) a gas separator which separates the vapor stream separated in the gas-liquid separator into a first vapor stream and a second vapor stream; (3) a first heat exchanger which condenses the first vapor stream separated in the gas separator; (4) a first expander which expands the first vapor stream condensed in the first heat exchanger; (5) a second expander which expands the second vapor stream separated in the gas separator; and (6) a distillation tower into which the liquid stream separated in the gas-liquid separator, the first vapor stream expanded in the first expander, and the second vapor stream expanded in the second expander flow in order to be divided into an overhead vapor stream containing methane and a component-reinforced lower stream that is heavier than methane.

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1177648 GRAVITATIONAL SEPARATION -- PRODUCING OIL & GAS
A SEPARATOR APPARATUS FOR GAS-WATER-OIL MIXTURES, AND SEPARATION PROCESS; P.Andreussi, asr. (TEA Sistemi SpA).. World 2013/150,473A1, p. 10/10/2013, f. 4/4/2013 (Appl. 1,352,687), pr. Italy 4/4/2012 (Appl. 120,071) (B01D-0017/02; E21B-0043/34; B01D-0019/00; E21B-0043/36). (28 pp)

The present invention refers to a triphasic separator for the separation of oil-water-gas mixtures used in the field of oil extraction from land or sea wells, suitable in particular, but not exclusively, for installation on the seabed in subsea wells.

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1177649 MERCURY REMOVAL -- PRODUCING OIL & GAS
COMPOSITION AND PROCESS FOR MERCURY REMOVAL; W.Turbeville, G.Korynta, T.Cole and J.L.Braden, asrs. (Sud-Chemie Inc).. U.S. 2013/0,152,788A1, p. 6/20/2013, f. 12/3/2012 (Appl. 692,088), pr. U.S. 12/15/2011 (Appl. 61/576,126) (B01D-0053/02; B01J-0020/02; B01J-0020/20; B01J-0020/08; B01J-0020/10). (6 pp)

A process for removing mercury from a gas or liquid phase is disclosed, wherein the gas or liquid phase containing mercury is placed in contact with a composition comprising a precipitated metal sulfide. The precipitated metal sulfide may be made by the process of combining a metal source, sulfide source, and modifier to form the precipitated metal sulfide. The metal source may comprise iron, cobalt, nickel, copper, zinc, zirconium, molybdenum, silver, or gold salts. The metal salt may be selected from metal nitrate, metal sulfate, metal phosphate, metal acetate, metal carbonate, metal hydroxide, metal ammonium carbonate, and metal hydroxycarbonate. The sulfide source is selected from hydrogen sulfide (H2S), carbonyl sulfide (COS), salts of sulfide (S2-), salts of hydrosulfide (HS-), and salts of polysulfide (Sn2-). The modifier may be selected from alumina, silica, aluminosilicate, clay, zeolites, carbon, cement, titania and zirconia.

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1177650 NATURAL GASOLINE PLANT -- PRODUCING OIL & GAS
METHOD TO PRODUCE LIQUEFIED NATURAL GAS (LNG) AT MIDSTREAM NATURAL GAS LIQUIDS (NGLS) RECOVERY PLANTS; J.Lourenco and M.Miller.. U.S. 2013/0,152,627A1, p. 6/20/2013, f. 12/20/2012 (Appl. 722,910), pr. Can. 12/20/2011 (Appl. 2,763,081) (F25J-0001/00). (6 pp)

A method is disclosed to recover natural gas liquids (NGLs) from natural gas streams at NGL recovery plants. The present disclosure relates to methods using liquid natural gas (LNG) as an external source of stored cold energy to reduce the energy and improve the operation of NGL distillation columns. More particularly, the present disclosure provides methods to efficiently and economically achieve higher recoveries of natural gas liquids at NGL recovery plants.

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1177651 OIL TREATING (FIELD) -- PRODUCING OIL & GAS
MAXIMIZING HEAVY OIL VALUE WHILE MINIMIZING ENVIRONMENTAL IMPACT WITH HTL UPGRADING OF HEAVY-TO-LIGHT OIL; J.D.Kuhach, E.Koshka, L.Lin and S.K.Pavel (Ivanhoe Energy Inc).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-360a; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 8 pp)

Ivanhoe Energy Incorporated's proprietary HTL upgrading technology is designed to cost-effectively process heavy oil in the field and produce a stable, significantly upgraded synthetic oil that meets pipeline requirements. By-product energy from the process can be used to generate steam or electricity. In developed markets, HTL improves the economics of heavy oil production by reducing or eliminating the need for natural gas and diluent, and by capturing the majority of the price differential for heavy-to-light oil. In remote areas, integrated HTL production frees otherwise stranded resources. HTL accomplishes all of this at a much smaller scale and at lower per-barrel capital costs compared with conventional technologies. In addition, integrated HTL heavy oil production provides environmental benefits, particularly related to greenhouse gas (GHG) emissions. This value-added element of HTL integration has taken on significant importance given the dramatic increase in heavy oil production worldwide and the growing pressures related to GHG emissions.

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1177652 OIL TREATING (FIELD) -- PRODUCING OIL & GAS
BEST PRACTICES FOR HEAVY OIL CRUDE TREATMENT: CASE STUDY - &quote;WASHED TANK&quote;; A.Quezada, L.Garcia and J.Brown (Petroleos Venezuela SA).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-152; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 5 pp; Abstract only)

[For information only - meeting paper abstract]

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1177653 OIL WATER SEPARATION -- PRODUCING OIL & GAS
EFFICIENT HEAVY CRUDE OIL DEHYDRATION WITH CENTRIFUGAL SEPARATION TECHNOLOGY; T.Perschke (GEA Westfalia Separat GmbH).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-304; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 3 pp; Abstract only)

[For information only - meeting paper abstract]

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1177654 PARAFFIN DEPOSITION -- PRODUCING OIL & GAS
MAGNETIC NANOPARTICLES IN OIL COLLOIDAL PARTICLES FRACTAL AGGREGATES; V.I.Lesin, Yu.A.Koksharov and G.B.Khomutov (Russian Academy Sciences; Lomonosov Moscow St Univ).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.95-97, March 2009. (ISSN 0028-2448; Over 10 refs; In Russian)

Structures formed by paraffin wax and deposition colloidal particles have been studied. It was demonstrated that magnetic nanoparticles of iron oxide could be the part of both oil and colloidal oil particles aggregates. The sizes of micellar oil colloidal particles have been determined. Mixed oil and iron oxide nanoparticles aggregate sizes are estimated. It was shown that the nanoparticles aggregates are not compact but have fractal structure.

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1177655 PARAFFIN DEPOSITION -- PRODUCING OIL & GAS
MAGNETIC INHIBITION OF ACCUMULATION OF PARAFFINIC DEPOSITS [INHIBICION MAGNETICA DE LA ACUMULACION DE DEPOSITOS PARAFINICOS]; C.A.Villabona Carvajal and D.P.Gonzalez Garcia (Santander Industrial Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 6 pp; In Spanish)

The accumulation of paraffin deposits is one of the major drawbacks in the production, transport and storage of crude oil. Inhibition using the magnetic method is an alternative that improves rheological properties of oil processed without altering the chemical properties. This study presents a review of the work done in oil fields nationally and internationally, where different methods have been applied to inhibit the precipitation of paraffins. The advantages of the new methods are reduction of cleaning work in the pits treated, low maintenance costs, inhibition of paraffin deposits without interruption of production or formation damage, and requirement of only the energy on site. This makes the magnetic treatment an interesting option to reduce costs substantially and maintain a high mobility paraffin crude.

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1177656 PEREGRINO FIELD -- PRODUCING OIL & GAS
PEREGRINO: A HEAVY OIL DEVELOPMENT OFFSHORE BRAZIL; H.Eliassen (StatoilHydro).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-400; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 4 pp; Abstract only)

[For information only - meeting paper abstract]

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1177657 PRESSURE RELEASE -- PRODUCING OIL & GAS
PROCESS FOR DEPRESSURIZING A GAS MIXTURE COMPRISING FREEZABLE SPECIES; M.Fourneraut and E.Dekeyzer, asrs. (Total SA).. World 2013/144,171A1, p. 10/3/2013, f. 3/26/2013 (Appl. 1,356,453), pr. U.S. 3/26/2012 (Appl. 61/615,591) (F17C-0007/02; F17C-0009/00). (16 pp)

The invention relates to a process for depressurizing a gas G1 from a pressure P1 to pressure P2, the gas G1 comprising freezable species and being contained in a capacity, the process comprising (1) providing the capacity with a depressurization system which can be fed with the gas G1, the depressurization system comprising in the direction of flow a first automatic valve in closed position; (2) a line comprising a gas G2 free of freezable species at a pressure P1, a second automatic valve in closed position, and a restriction orifice; (3) opening the first automatic valve so that gas G1 and G2 come into contact at pressure P1; and (4) opening the second automatic valve so that gas G1 and G2 flow through the restriction orifice, thereby recovering the gas G1 whose pressure is lowered to a pressure P2.1. The invention also relates to the depressurization system for implementing the process of the invention.

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1177658 PRODUCTION OPTIMIZATION -- PRODUCING OIL & GAS
DECISION ANALYSIS FOR LONG-TERM AND SHORT-TERM PRODUCTION OPTIMIZATION APPLIED TO THE VOADOR; A.Hasan, B.Foss, S.Krogstad, V.Gunnerud and A.Teixeira (Norwegian Univ Sci Technol; SINTEF; Petroleo Brasileiro SA).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166027; Available on CD-ROM; 15 pp)

Optimization of oil production may be performed on different time horizons. Long-term optimization (which is performed over timescales of years) is usually conducted by reservoir engineers, whereas short-term optimization (which typically concerns days or weeks) is performed by production engineers. Long-term objectives focus on finding the best strategy to drain as much oil as possible from reservoirs. However, in reality it is often short-term goals such as maximizing daily oil rates that dictate the operational strategy. We present a novel approach to systematically combine long-term and short-term production optimization. The approach is adopted from multi-objective optimization method in which the solution is not a single point but rather a collection of points. To this end, we introduce the upper and lower bounds of the objective function such that the objective function can be written in a different form, whereas in reality, the short-term and long-term optimization are performed with the same objective but different methods. The approach is tested on reservoir model of the Voador field in the Campos Basin in Brazil. (Copyright 2013 SPE)

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1177659 PRODUCTION TEST -- PRODUCING OIL & GAS
SUCCESSFUL HEAVY OIL AND EXTRA-HEAVY OIL PRODUCTION TESTING USING Phase Tester Vx IN CASTILLA FOR ECOPETROL; I.Benlizidia (Schlumberger).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 7 pp)

The Vx Technology was developed years ago by Schlumberger and has been successfully used inside the PhaseTester and PhaseWatcher multiphase flow meters for periodic well testing and permanent application (subsea or top side). Vx Technology measures accurate flow rates (oil, water, and gas without any separation) at line conditions (from 14.7 to 10,000 psia and from -20°C to 200°C) but requires a model of the fluid phase behavior to be able to convert data from line to standard conditions or vice-versa. In Colombia for Ecopetrol, a Vx measurement campaign was run successfully in heavy oil environment with APIs ranging from 10 to 12 and high crude oil viscosity at line conditions.

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1177660 RESERVOIR HEATING -- PRODUCING OIL & GAS
EVALUATION OF DOWNHOLE ELECTRICAL HEATING IN HEAVY OIL OF THE ORINOCO BELT, VENEZUELA; S.Marfissi, F.Campos, C.Osuna and J.Brown (Petroleos Venezuela SA).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-119; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 10 pp)

The study was based on the assessment through simulations of the effect of downhole electric heating in heavy oil wells. The simulated heater is a conductor wire that is placed opposite the producing zone. The study was divided into two stages. First, the nodal analysis simulation was carried out using this downhole heating system and an oil production increase of 25% (56 BOPD) was estimated. Second, computational fluid dynamics (CFD) was performed to predict the heating impact on the reservoir. During production, it was determined that heating does not reach the pay sand. However, when the well was shut down for seven days, an increase in the reservoir temperature was observed, increasing the productivity index from 0.81 to 1.04. It is important to point out that both models were entirely developed by PDVSA. According to this study, a pilot test will be conducted in the Morichal district, where six wells were chosen with an associated oil production of 865 BOPD. It was estimated that, using this heating process, the oil production rate can be increased by 62%.

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1177661 SAFETY VALVE -- PRODUCING OIL & GAS
DEEP SET SUBSURFACE SAFETY SYSTEM; T.G.Hill, Jr. and R.C.Henschel, asrs. (Tejas Research & Eng LLC).. U.S. 2013/0,199,791A1, p. 8/8/2013, f. 1/29/2013 (Appl. 752,762), pr. U.S. 2/2/2012 (Appl. 61/593,927) (E21B-0034/06). (9 pp)

A subsurface safety valve is operable to close a fluid flow path by virtue of an axially movable flow sleeve. The valve includes a recockable linear actuator and a latch mechanism so that the valve can be moved from an open to a closed position as a result of axial movement of the flow sleeve without overcoming the pressure head and frictional forces currently encountered in conventional safety valves.

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1177662 SAMOTLORSKOYE OIL FIELD -- PRODUCING OIL & GAS
ALTERNATIVE WAYS OF FLUID LIFTING BY CHAIN DRIVES FROM PROLILFIC WELLS WITH THE LIMITED DIAMETER OF THE FLOW STRING OWING TO ITS NONHERMETICITY ELIMINATION AT SAMOTLORSKOYE FIELD; A.R.Sarvarov, A.V.Loktev and I.D.Bolgov (TNK-Nizhnevartovsk).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.68-71, March 2009. (ISSN 0028-2448; 5 refs; In Russian)

Alternative ways of fluid lifting, from wells with the limited diameter of the flow string owing to nonhemeticity elimination by the running of additional string 144-120 mm in diameter, are considered. The low failure time of small-sized pumps of model TA series 338 under API standard is shown. For the first time at Samotlorskoye field, the operation of sucker-rod pumps with a long-stroke chain drive, which allows increased oil output from the prolific wells, is offered.

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1177663 SCALE REMOVAL -- PRODUCING OIL & GAS
METHOD FOR DISSOLVING DEPOSITS CONTAINING ALKALINE EARTH METAL SULPHATES [VERFAHREN ZUM LOESEN VON ERDALKALIMETALLSULFATE UMFASSENDEN ABLAGERUNGEN]; W.Bertkau, S.Hatscher, S.Frenzel and U.Ossmer, asrs. (BASF SE; Wintershall Holding GmbH; BASF Schweiz AG).. World 2013/149,923A1, p. 10/10/2013, f. 3/27/2013 (Appl. 1,356,616), pr. U.S. 4/3/2012 (Appl. 61/619,445) and Europe. 4/3/2012 (Appl. 12,162,980) (C09K-0008/528). (20 pp; In German)

A method is disclosed for dissolving deposits containing alkaline earth metal sulphates in subterranean systems or system parts for obtaining petroleum, natural gas and/or water, in which method the deposits are treated with an aqueous formulation containing methanesulphonic acid.

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1177664 STUFFING BOX -- PRODUCING OIL & GAS
STUFFING BOX; D.Tebay, asr. (Brightling Equipment Ltd).. U.S. 2013/0,199,773A1, p. 8/8/2013, f. 2/6/2012 (Appl. 367,157) (E21B-0033/02). (9 pp)

A stuffing box for a wellhead is disclosed, comprising (1) a stationary housing defining a passage for receiving a well tubular; (2) a tubular shaft mounted on the stationary housing for rotation within the passage and defining an inner axial bore adapted to form a static seal around a well tubular in use; and (3) a dynamic pressure seal mounted within an annular cavity defined by respective cylindrical surfaces of the stationary housing and tubular shaft, in which one or both of the respective cylindrical surfaces are tapered to decrease the radial cross sectional area of a seal travel portion of the annular cavity in an axial direction downstream from a well end of the stuffing box.

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1177665 SUBSEA PRODUCTION SYSTEM -- PRODUCING OIL & GAS
METHOD FOR POSITIONING A SEABED ASSEMBLY AT THE BOTTOM OF A STRETCH OF WATER, AND ASSOCIATED DEVICE [PROCEDE DE POSITIONNEMENT D'UN ENSEMBLE DE FOND AU FOND D'UNE ETENDUE D'EAU, ET DISPOSITIF ASSOCIE]; P.Espinasse and O.Rageot, asrs. (Technip France).. World 2013/150,079A1, p. 10/10/2013, f. 4/3/2013 (Appl. 1,357,047), pr. Fr. 4/4/2012 (Appl. 1,253,105) (E02D-0023/08). (35 pp; In French)

This method involves moving a seabed assembly suspended between a first tow/anchor line and a second tow/anchor line. The method involves (1) laying a length of each tow/anchor line on the bottom of the stretch of water; (2) keeping the seabed assembly away from the bottom of the stretch of water in order temporarily to anchor the seabed assembly with respect to the bottom of the stretch of water; and (3) positioning the seabed assembly at a target point using a secondary movement assembly, keeping each length laid on the bottom in contact with the bottom of the stretch of water.

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1177666 THRUST BEARING -- PRODUCING OIL & GAS
DEBRIS RESISTANT THRUST BEARING ASSEMBLY FOR HIGH SPEED HYDRAULIC CENTRIFUGAL TURBINES AND PUMPS; F.Winkler and J.M.Calkins.. U.S. 2013/0,163,900A1, p. 6/27/2013, f. 12/22/2011 (Appl. 335,102) (F16C-0032/06; B23P-0015/00). (12 pp)

A rotating assembly adapted for use in turbines and pumps is provided. The rotating assembly includes a shroud that rotates around a central axis and a disk seated in a recess in the shroud so that the disk rotates with the shroud, the disk being oriented perpendicular to the central axis. The rotating assembly also includes a stationary element in which at least one surface of the disk contacts a fluid so that when the fluid flows under pressure, the surface of the disk resists the generation of drag between the surface and the stationary element of the rotating assembly. A shroud is provided that includes a circular recess with a cavity on an outer perimeter extending away from the fixed assembly. A method of manufacturing a rotating assembly is provided. One application of a turbine is to recover energy from a natural gas processing operation.

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1177667 VENT -- PRODUCING OIL & GAS
FLUID VENT ASSEMBLY AND METHOD OF VENTING FLUID; S.D.Gordon, asr. (RMSpumptools Ltd).. World 2013/150,283A2, p. 10/10/2013, f. 4/2/2013 (Appl. 1,350,853), pr. Gr. Brit. 4/5/2012 (Appl. 1,206,157) (E21B-0034/06). (30 pp)

A housing for a downhole tool has a fluid vent assembly comprising (1) a port passing through the wall of the housing to transmit fluid through the port when the port is open; (2) a sealing device to seal the port; and (3) a cutting device to disrupt the sealing device and permit transmission of fluid through the port. The cutting device is driven axially through the sealing device without relative rotation between the two. The cutting device has an asymmetric blade to cut a coupon from the sealing device by a gradual and progressive disruption of the closure, typically cutting through only a portion the closure device, so that the coupon cut from the closure device remains attached to the closure device when the closure device is ruptured to open the seal. Typically, the downhole tool comprises a downhole pump, and the housing comprises the shroud of the pump.

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1177668 WATER TREATING -- PRODUCING OIL & GAS
WATER TREATMENT PROCESSES FOR OILFIELD STEAM INJECTION; A.Shannon and J.C.Pauley (Chevron).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-411; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 9 pp)

This presentation summarizes Chevron's view of water treatment requirements and processes for oilfield steam injection. Various treatment processes are utilized within the industry. Processes tend to be common within one region of the world, but different between regions. Untreated water characteristics, and treated water quality requirements, have a lot to do with this observation. We will identify water treatment systems that have been used at thermal projects, where they are commonly utilized, the purpose and limits of each process, and their advantages and disadvantages. Challenges and opportunities that could benefit from technology improvements are identified.

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1177669 WELL COOLER -- PRODUCING OIL & GAS
METHOD AND SYSTEM FOR CONTROLLING WELLBORE PRODUCTION TEMPERATURE; M.J.Schneider.. U.S. 2013/0,192,834A1, p. 8/1/2013, f. 1/24/2013 (Appl. 749,288), pr. U.S. 1/31/2012 (Appl. 61/593,122) (E21B-0036/00). (6 pp)

A method and system of controlling the temperature of fluids produced from a reservoir to prevent overheating of an adjacent geological formation are disclosed. A cooling fluid is supplied through an annulus formed between a production tubing and a production casing, which are in fluid communication with the reservoir. The cooling fluid is mixed with the reservoir fluid, and the fluids are produced through the production tubing. The temperature of the produced fluids is controlled or reduced by heat exchange with the cooling fluid supplied through the annulus to prevent excessive heat dissipation to the geological formation.

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RESERVOIR ENG & REC METHOD

table of contents list of publications

1177670 ASPHALTENE -- RESERVOIR ENG & REC METHOD
DETERMINATION OF ASPHALTENES IN HEAVY OILS USING AN ON-COLUMN METHOD; E.Rogel, C.Ovalles, M.Moir and J.F.Schabron (Chevron Energy Technol Co; Western Research Inst).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-404; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 3 pp; Abstract only)

[For information only - meeting paper abstract]

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1177671 CAPSULE -- RESERVOIR ENG & REC METHOD
MICROCAPSULE DISPERSION COMPRISING MICROCAPSULES WITH A HYDROPHILIC CAPSULE CORE; P.Hahn, M.Brym, H.Keller, C.Nitschke, H.Willax, B.Katz, J.Brust, T.Schroeder-Grimonpont, R.Rieger and R.Klein.. U.S. 2013/0,157,863A1, p. 6/20/2013, f. 12/17/2012 (Appl. 716,827), pr. U.S. 12/19/2011 (Appl. 61/577,105) (C08L-0039/00; C08L-0033/14; C08L-0033/26). (10 pp)

The present invention relates to microcapsule dispersions comprising microcapsules comprising a hydrophilic capsule core and a capsule wall polymer which is obtainable by polymerization of a monomer composition. The microcapsules have application to the petroleum industry by injecting a formulation with encapsulated inorganic or organic acids into a carbonate oil or gas reservoir permitting an increase in permeability of the rock formation.

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1177672 CARBON DIOXIDE FLOODING -- RESERVOIR ENG & REC METHOD
INVESTIGATION OF LARGE SCALE CO2 EOR AND SEQUESTRATION POTENTIAL IN NORTHERN CHINA; Y.Zhang, J.Miller, L.Roman and L.Hoffman (Sinopec; Enco-Energy; Rock Tech Inc; COEOR).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166036; Available on CD-ROM; 6 pp)

Most oil reservoirs in the Daqing Oilfield area have entered middle and late development stages after nearly 40 years of production, and they are suitable for applying CO2 EOR and carbon storage techniques. This study is aimed at assessing the potential of CO2 EOR and storage in three large oil fields in the region based on the data of 389 mature oil reservoirs. The assessments include a regional geology assessment, storage site screening, reservoir screening for CO2 EOR and EOR potential and storage capacity calculations. Many mature oil reservoirs are close to the main CO2 sources and have good geographical and geological conditions for CO2 storage. Of 42 reservoirs, 26 are suitable both for EOR and storage while 17 reservoirs were found suitable for storage as depleted oil reservoirs. The total EOR potential could be 2699.6 x 10 E+04 MMt and the CO2 storage potential could reach 19,554.5 x 10 E+04 MMt. The overall incremental oil recovery rate could be 5.76%. The greater OOIP the oil reservoir has, the greater potential for CO2 EOR and storage it will have, and the more suitable for large-scale storage projects it will be. Those oil reservoirs suitable for CO2 EOR with large OOIP will be the preferred sites for CO2 storage. Many nearly depleted oil reservoirs with large OOIP can be considered as main sites for CO2 storage in the near future. (Copyright 2013 SPE)

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1177673 CARBON DIOXIDE FLOODING -- RESERVOIR ENG & REC METHOD
MATHEMATICAL MODELLING OF CARBONATED WATER INJECTION INCLUDING MASS TRANSFER KINETICS; J.Foroozesh, M.Jamiolahmadi, M.Sohrabi and S.Ireland (Heriot Watt Univ).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166047; Available on CD-ROM; 7 pp)

Carbonated water injection (CWI) process is an improved water flooding technique in which CO2 is used efficiently. As CO2 remains dissolved in CWI, it can also de deployed as a safe CO2 storage technique. During CWI in an oil reservoir, due to higher CO2 solubility in the oil phase, dynamic transfer of CO2 from carbonated water to oil takes place. This leads to enhanced oil recovery by a number of mechanisms including improving oil mobility due to oil viscosity reduction and swelling. In this work, a new one-dimensional compositional simulator has been developed that is based on non-equilibrium conditions including a mass transfer term describing the kinetics of the CO2 transfer between phases. The simulator results were validated using our core flood experimental data. In a step-wise history matching process, first, the water flood relative permeability (kr) data were obtained by history matching the corresponding core flood production history. Then, the early time production data of the CWI experiment was used to fine-tune the water flood kr data and obtain the corresponding CWI-kr data. Finally, the late time production data that are affected by mass transfer between the two phases are history matched to estimate a proper mass transfer coefficient. (Copyright 2013 SPE)

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1177674 CARBON DIOXIDE INJECTION -- RESERVOIR ENG & REC METHOD
APPLICATION OF GC–MS CHROMATOGRAPHY FOR THE ANALYSIS OF THE OIL FRACTIONS EXTRACTED BY SUPERCRITICAL CO2 AT HIGH PRESSURE; S.Rudyk, P.Spirov and E.Sogaard (Aalborg Univ).. FUEL v.106, pp.139-146, April 2013. (ISSN 0016-2361)

GC–MS chromatographic analysis has been applied for the investigation of the fractions of oil extracted by supercritical carbon dioxide at a temperature of 60°C and at pressure values ranging from 22 to 56 MPa. The observations revealed, that the whole extraction process is clearly reflected in the chromatograms, demonstrating how the heavier hydrocarbon fractions were gradually involved in the extraction process. The shape of the chromatograms alters with increasing pressure from triangle to trapezoid, approaching the shape of the chromatogram of the crude oil. The observation of the fingerprints of chromatograms allows them to be used for the qualitative evaluation of extraction progression. It can also be noticed, that the area under the spectrum of the chromatograms of oil samples extracted at various pressures is increasing with an increase in pressure. ... (c2012 Elsevier Ltd.) (Longer abstract available)

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1177675 COALBED METHANE -- RESERVOIR ENG & REC METHOD
RECOVERY OF CH4 FROM COAL MINE MODEL GAS MIXTURE (CH4/N2) BY HYDRATE CRYSTALLIZATION IN THE PRESENCE OF CYCLOPENTANE; D.L.Zhong, N.Daraboina and P.Englezos (Chongqing Univ; British Columbia Univ).. FUEL v.106, pp.425-430, April 2013. (ISSN 0016-2361)

This work presents how water containing cyclopentane (CP) can facilitate the recovery of methane from the CH4/N2 coal mine gas mixture through hydrate crystallization. Gas hydrate formed in the CH4/N2/CP/H2O system has more favorable equilibrium conditions than that formed in pure water with the same gas mixture. The incipient equilibrium conditions at 4.0 and 13.0 wt% CP were measured and are reported. The dynamics of hydrate formation using a 30 mol% CH4/N2 gas mixture were studied at 283.4 K, two CP concentrations (4.0 and 13.0 wt%) and at 2.6 and 3.8 MPa. These hydrate formation pressures correspond to 2.3 and 3.5 MPa overpressures (driving forces) respectively. It was found that CH4 is preferentially incorporated into the hydrate crystal compared to N2. However, N2 competes with CH4 to enter the hydrate crystal at the higher driving force. The CH4 recovery substantially increases as the CP concentration is increased from 4.0 to 13.0 wt%. ... (c2013 Elsevier Ltd.) (Longer abstract available)

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1177676 COALBED METHANE -- RESERVOIR ENG & REC METHOD
AN ANALYTICAL MODEL FOR DESORPTION AREA IN COAL-BED METHANE PRODUCTION WELLS; B.Xu, X.Li, M.Haghighi, X.Du, X.Yang, D.Chen and Y.Zhai (China Univ Petroleum; Adelaide Univ; China Coalbed Methane Co).. FUEL v.106, pp.766-772, April 2013. (ISSN 0016-2361)

Production forecasting, well spacing, and well pattern optimization are key tasks in coal-bed methane field development plan. Desorption area around a production well is an important factor in well performance and reserve estimation. Analytical models are found to be simple and practical tools for drainage area calculation and well deliverability in conventional reservoirs. However, up to now, we have found no such analytical model for coal-bed methane wells with two-phase flow in which the gas desorption in coal is the controlling mechanism while the water is flowing in the cleat system. In this paper, we present a mathematical model to predict how the size of desorption area is changing with pressure propagation during gas and water production. The pressure profiles at different production stages are determined using diffusivity equation which is solved using the known method of “continuous succession of steady states.” For the case of two-phase flow of gas–water system, the pressure squared concept is used for linearization in middle and late times. ... (c2013 Elsevier Ltd.) (Longer abstract available)

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1177677 COLD PRODUCTION -- RESERVOIR ENG & REC METHOD
MODELING CHOPS USING A COUPLED FLOW - GEOMECHANICS SIMULATOR WITH NON-EQUILIBRIUM FOAMY OIL REACTIONS; J.A.Rivero, D.H.S.Law, A.Pearce, R.Newman, J.Zhao and J.Ingham (Schlumberger).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-397; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 12 pp)

Many of the commercial finite-difference reservoir simulators do not incorporate capabilities to model the complex geomechanical processes responsible for the failure of poorly consolidated formations in cold heavy oil production with sand (CHOPS). To circumvent these limitations, the most common approach relies on explicitly defining high-permeability channels that radiate from the producing wells in an attempt to mimic wormholes created during CHOPS production. In this paper, we present a different, more rigorous approach that relies on the coupling of a finite-element geomechanical simulator with a finite-difference reservoir simulator. In the coupling process, the geomechanical simulator uses the pressure gradients calculated by the reservoir simulator to determine changes in the stress regime of the reservoir. In the case of CHOPS, these changes cause failure in the loosely consolidated formation and increases local porosity and permeability. The new local values are then used in the reservoir simulator which can use them in fluid flow calculations. This process is then repeated at user-controlled intervals during the course of the simulation. The aim of this work is to use a numerical model of a reservoir with properties from the Lloydminster area to demonstrate the proposed methodology.

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1177678 COMBINATION FLOODING -- RESERVOIR ENG & REC METHOD
EFFECT OF ROCK AND WETTABILITY HETEROGENEITY ON THE EFFICIENCY OF WAG FLOODING IN CARBONATE RESERVOIRS; M.O.A.Elfeel, A.Al-Dhahli, Z.Jiang, S.Geiger and M.I.van Dijke (Heriot Watt Univ).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166054; Available on CD-ROM; 17 pp)

Carbonate reservoirs contain more than half of the world’s remaining petroleum reserves and are increasingly becoming targets for water-alternating-gas (WAG) flooding as secondary or tertiary recovery. Heterogeneity in carbonate reservoirs spans from pore- to reservoir-scale. This is exacerbated by the presence of natural fractures and post-depositional dissolution. Furthermore, carbonate reservoirs tend to have variable wettability that impacts fluid flow which adds to reservoir uncertainty and renders managing WAG floods difficult. In this work, we examine the effect of rock and wettability heterogeneity on recovery profiles in naturally fractured carbonate reservoirs (NFCR). To simulate WAG flooding in NFCR with arbitrary wettability, we use saturation functions derived from a state-of-the-art pore network model to preserve multi-scale heterogeneities at the pore-scale. We study the interplay of capillary, gravity and viscous forces at an intermediate scale, then simulate WAG flooding in the presence of fractures in a heterogeneous carbonate ramp outcrop model. Adding the permeability and wettability heterogeneities impacts ultimate recoveries during water injection cycles by up to 6% and 14% absolute, respectively. (Copyright 2013 SPE)

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1177679 CORE ANALYSIS -- RESERVOIR ENG & REC METHOD
EFFECTS OF SEGMENTATION AND SKELETONISATION ALGORITHMS ON PORE NETWORKS AND PREDICTED MULTIPHASE TRANSPORT PROPERTIES ON RESERVOIR ROCK SAMPLES; N.A.Idowu, C.Nardi, H.Long, T.Varslot and P.E.Oeren (Lithicon Norway AS).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166030; Available on CD-ROM; 13 pp)

Networks of large pores connected by narrower throats (pore networks) are essential inputs into network models which are routinely used to predict transport properties from digital rock images. Extracting pore networks from micro-computed tomography (micro-CT) images of rocks involves a number of steps: filtering, segmentation, skeletonisation, etc. Because of the amount of clay and their distribution, segmentation of micro-CT images is not trivial and different algorithms exist for doing this. Similarly, several methods are available for skeletonising the segmented images and for extracting the pore networks. The non-uniqueness of these processes raises questions about the predictive power of network models. In the present work, we evaluate the effects of these processes on the computed petrophysical and multiphase flow properties of reservoir rock samples. Using micro-CT images of reservoir sandstones, we first apply three different segmentation algorithms and assess the impacts of the different algorithms on estimated porosity, amount of clay and their distribution. (Copyright 2013 SPE)

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1177680 CORE ANALYSIS -- RESERVOIR ENG & REC METHOD
USE OF DIGITAL IMAGING FOR IMPROVED EVALUATION OF UNCONVENTIONAL RESERVOIRS; M.Dixon, B.Newton, A.Schwartz, E.Smart and K.Hooghan (Weatherford Laboratories).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166065; Available on CD-ROM; 12 pp)

Formation evaluation of rock material from unconventional reservoirs is challenging due to the rock’s typically heterogeneous nature and low permeability. Measurements and descriptions of the pore network in shale/mudstone are especially difficult due to variations in mineralogy, texture and pore size. In the digital rock domain, high resolution imaging of core can be obtained from the meter to nanometer size range to create respective 3D models. Data obtained with these techniques can be integrated with other core analysis data (i.e., geochemistry, petrology, mechanical properties) to provide expanded modeling capabilities for integrated core studies of unconventional reservoirs. This paper describes how an integrated imaging/sampling protocol serves to characterize unconventional reservoirs across a broad size range. High resolution digital imaging data derived from helical computed tomography (HCT) and micro-CT captures meter- to millimeter-sized features, while field emission scanning electron microscopy (FE-SEM), and focused ion beam scanning electron microscopy (FIB-SEM) provide the means to characterize the rock fabric and pore network on a sub-micron (<µm) level. (Copyright 2013 SPE)

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1177681 CUTTINGS ANALYSIS -- RESERVOIR ENG & REC METHOD
METHOD AND APPARATUS TO PREPARE DRILL CUTTINGS FOR PETROPHYSICAL ANALYSIS BY INFRARED SPECTROSCOPY AND GAS SORPTION; A.E.Pomerantz, J.J.Valenza and M.Borot de Battisti, asrs. (Schlumberger Serv Petrol; Schlumberger Technol BV; Schlumberger Holdings Ltd; Schlumberger Canada Ltd; Prad Res & Develop Ltd; Schlumberger Technol Corp).. World 2013/155,508A1, p. 10/17/2013, f. 4/15/2013 (Appl. 1,336,520), pr. U.S. 4/13/2012 (Appl. 446,985) (E21B-0049/02; E21B-0049/00). (20 pp)

Embodiments relate to a method for recovering hydrocarbons from a formation including collecting a formation sample, forming the sample into particles, exposing the sample to a cleaning fluid, and analyzing the sample. Embodiments also relate to a method for recovering hydrocarbons from a formation including the steps of collecting a formation sample, first exposing the sample to a cleaning fluid, forming the sample into particles, exposing the sample to a second cleaning fluid and analyzing the sample.

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1177682 FIELD DEVELOPMENT -- RESERVOIR ENG & REC METHOD
APPLICATION OF INTEGRATED ASSET MODELING APPROACH IN A MULTI-RESERVOIR GAS CONDENSATE FIELD; N.Rahmouni, T.A.Al-Shabibi, S.Al-Khanbashi, A.Amtereg, M.Bouaouaja and F.H.Soendoro (Abu Dhabi Co Onshore Oper; Schlumberger).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166048; Available on CD-ROM; 17 pp)

This paper presents an application of integrated asset modeling (IAM) to a rich gas condensate field under recycling mode located in Abu Dhabi. The field is composed of many non-communicating gas reservoir units. Some of these units are already developed and have been producing for a number of years, while others are in the exploration/evaluation phase. Potentially, some of the reservoir units are sharing or will share the surface network and the process facilities. The project consists of developing a platform for a solution that can respond to the current requirement of the available modeled reservoirs; at the same time, the solution should be expandable to account for the reservoirs being explored or at early production phase. (Copyright 2013 SPE)

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1177683 FIELD DEVELOPMENT -- RESERVOIR ENG & REC METHOD
STACKED RESERVOIRS DEVELOPMENT OPTIMIZATION BASED ON A FULLY IMPLICIT SURFACE-SUBSURFACE NEXUS MODELLING - A CASE STUDY FROM THE UAE; C.Clara, M.Sherief, T.S.Chong, M.Abdou and N.Brock (Abu Dhabi Co Onshore Oper; Halliburton).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166050; Available on CD-ROM; 11 pp)

The efficient development of Abu Dhabi's giant stacked reservoirs is challenging due to the significant number of wells needed to produce these reservoirs through common surface production facilities. Recent advances in numerical simulation, such as the simultaneous implicit solution of pressure and other properties in an asset model which includes both surface facilities and the subsurface reservoir, provide users with the ability to understand the flow of oil from the pore space of the reservoir through the surface network to the ultimate point of sale. This case study discusses an ADCO onshore field development plan combining several stacked reservoirs within a sequence of 18 stacked, independent reservoirs in the same field. All developed reservoirs within the sequence share common surface facilities. The integrated model construction is presented including gridding, fluid properties, surface network configuration and constraints. The economic value of different production and injection and injection scenarios and their impact on shared facilities is also discussed which led to optimizing the well phasing, plateau rate and length of the combined developments. (Copyright 2013 SPE)

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1177684 FLUID SAMPLER -- RESERVOIR ENG & REC METHOD
METHOD FOR THE ISOBARIC TRANSFER OF A FLUID FROM A DEPOSIT AND DEVICE FOR IMPLEMENTING SUCH A METHOD [METHODE DE TRANSFERT ISOBARIQUE D'UN FLUIDE ISSU D'UN GISEMENT ET DISPOSITIF DE MISE EN OEUVRE D'UNE TELLE METHODE]; J.P.Grolier, S.Randzio and M.A.Aquino-Olivos, asrs. (Blaise Pascal Univ; Centre Natl Rech Sci (Fr); Inst Mexicano Petroleo; Polish Academy Sciences).. World 2013/150,158A1, p. 10/10/2013, f. 4/8/2013 (Appl. 1,357,332), pr. Fr. 4/6/2012 (Appl. 1,253,235) (G01N-0025/02; G01N-0033/28). (43 pp; In French)

The invention concerns a method for transferring a fluid under pressure from a deposit of the fluid, by means of a sampling container in which a fluid sample is kept at the reservoir pressure or sampling pressure, and a method for determining at least one thermodynamic characteristic of said fluid, in particular a method for determining the phase transition envelopes. The invention also concerns a method combining the implementation of scanning transitiometry with spectroscopic or analytical techniques, optionally in the presence of a fluid in the supercritical state. The invention also concerns a device for implementing the disclosed methods.

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1177685 FOAM FLOODING -- RESERVOIR ENG & REC METHOD
SIMULATION TECHNIQUES FOR SURFACTANT PHASE BEHAVIOR AND FOAM FLOW MODELING IN FRACTURED RESERVOIRS; M.Abbaszadeh and G.Ren (Innovative Petrotech Solut).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166032; Available on CD-ROM; 16 pp)

Simulations of foam-assisted surfactant chemical EOR in fractured systems require simultaneous modeling of foam flow in fractures for mobility control and chemical EOR in matrix by diverted surfactant solution. Modeling of surfactant phase behavior as a function of salinity and representing microemulsion (ME) properties are challenging because commercial simulators lack the capability to model these chemical processes. In this paper, we develop and validate techniques for simultaneous modeling of foam flow and surfactant-oil-brine key characteristics, using the general framework of CMG-STARS commercial simulator. Laboratory surfactant-salinity phase behavior data is transferred into k-value based compositional model, where oil is also characterized by multi-components. Surfactant Winsor Type phase variations are tracked by a pseudocomponent based on combined surfactant-salinity criteria--an invention of this paper. The mobility control provided by foam is fulfilled by bubble model of low quality liquid foam with increased aqueous phase viscosity through bubble characteristics. The results show that our methodologies account for diversion of surfactant solution into matrix for intended chemical EOR processes and for mobility control by foam flow in the fractures. (Copyright 2013 SPE)

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1177686 FORMATION EVALUATION -- RESERVOIR ENG & REC METHOD
PERFECTION OF LEVEL RECOVERY CURVES INTERPRETATION METHODS AT WELLS SURVEY; A.P.Tokarev and E.M.Pjankova (Tyumen State Oil Gas Univ).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.56-58, March 2009. (ISSN 0028-2448; 2 refs; In Russian)

The problems, connected with wells survey by the level recovery curve method are considered. It is shown that applied methods of level recovery curves processing by the indicator curve scheme are improper. The technique of level recovery curves processing on the basis of reference curves is offered. The new variant of reference curves empirical chart with wider range of changing parameters of a well, a layer, and a skin-effect is presented.

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1177687 FORMATION EVALUATION -- RESERVOIR ENG & REC METHOD
METHODS AND APPARATUS FOR SIMULTANEOUS ESTIMATION OF QUANTITATIVE MINEROLOGY, KEROGEN CONTENT AND MATURITY IN GAS SHALE AND OIL-BEARING SHALE; A.E.Pomerantz, asr. (Schlumberger Canada Ltd; Schlumberger Serv Petrol; Schlumberger Holdings Ltd; Schlumberger Technol BV; Prad Res & Develop Ltd; Schlumberger Technol Corp).. World 2013/155,124A1, p. 10/17/2013, f. 4/10/2013 (Appl. 1,335,868), pr. U.S. 4/13/2012 (Appl. 446,975) (E21B-0049/08; G01N-0029/46). (25 pp)

A method for estimating characteristics of a formation including collecting a formation sample, preparing the sample, and analyzing the sample using Fourier transform infrared spectroscopy (FTIR) comprising identifying the kerogen lineshape and intensity. The method includes using the lineshape to obtain kerogen maturity, using the maturity to obtain the kerogen spectrum, and using the kerogen spectrum to obtain the mineralogy and kerogen content.

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1177688 GAS HYDRATE -- RESERVOIR ENG & REC METHOD
EXPERIMENTAL STUDY OF GAS PRODUCTION FROM HYDRATE DISSOCIATION WITH CONTINUOUS INJECTION MODE USING A THREE-DIMENSIONAL QUIESCENT REACTOR; Q.Yuan, C.Y.Sun, X.H.Wang, X.Y.Zeng, X.Yang, B.Liu, Z.W.Ma, Q.P.Li, L.Feng et al. (China Univ Petroleum).. FUEL v.106, pp.417-424, April 2013. (ISSN 0016-2361)

The exploitation of methane hydrate formed under the same conditions is simulated experimentally to investigate the gas production behavior at different injected solutions (hot water, saline solution, and ethylene glycol) with continuous injection mode using a three-dimensional quiescent reactor. The influence of hot water temperature, injection rate, and injected solution type on the gas production and the energy efficiency are examined. The results show that the gas production increases with the increased hot water temperature, but the influence of temperature is weakened when it is beyond 313.0 K. An optimal injection rate also exists for the gas production. Hydrate dissociation with NaCl solution has the highest gas production compared with Na2SO4 and ethylene glycol when under the same conditions. The comparison of energy efficiency between the continuous injection mode and the interval injection mode shows that the former mode with double wells is more in favor of hydrate dissociation and gas production. (c2012 Elsevier Ltd.)

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1177689 GEOLOGIC MODEL -- RESERVOIR ENG & REC METHOD
USE OF WELL TEST INTERPRETATIONS TO CONSTRAIN THE SMALL SCALE PETROPHYSICAL ANISOTROPY (kv/kh); E.Wigniolle and G.Massonnat (Total SA).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166043; Available on CD-ROM; 9 pp)

A recurrent issue when performing an up-scaling workflow is to assign representative values for the small scale petrophysical anisotropy ratio kV/kH. Most of the time the data provided by the plugs is not appropriate due to the absence of vertical sampling or to problems of representativeness. Where plug data is available kV/kH ratios are often found to be close to one, a value too high to be realistic when considering geological heterogeneity at small scale. A methodology is proposed in order to give more appropriate ranges of values for the small scale permeability anisotropy ratio (kV/kH) as an input during the up-scaling workflow. When a well test with partial penetration interpretation is available, it is possible to use the large scale anisotropy ratio Kv/Kh obtained from spherical flow equations and thus constrain the small scale anisotropy ratio kV/kH. The method was successfully tested on different field cases in turbidite and carbonate environments. Reference values of kV/kH ratios associated to facies can be used, as an initial starting point during the up-scaling process. (Copyright 2013 SPE)

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1177690 GEOLOGIC MODEL -- RESERVOIR ENG & REC METHOD
ESTIMATING A ROCK PHYSICS MODEL PARAMETER FOR A GEOLOGICAL FORMATION; A.Draege and K.Duffaut, asrs. (Statoil Petroleum AS).. World 2013/149,656A1, p. 10/10/2013, f. 4/4/2012 (Appl. 1,256,136) (G01V-0011/00). (27 pp)

A method and apparatus for estimating a rock physics model parameter for a geological formation are disclosed. The method includes (1) selecting an initial estimate for the parameter; (2) estimating formation porosity using a second parameter, a formation burial depth and the initial estimate for the parameter; (3) estimating formation P-wave velocity using the estimated formation porosity, formation burial depth, the second parameter and estimated parameter in a rock physics model; and (4) comparing the estimated formation P-wave velocity with a measured P-wave velocity. The estimated parameter is amended and the previous steps repeated to obtain an estimated parameter that gives an estimated P-wave velocity that most closely matches the measured P-wave velocity.

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1177691 GEOLOGIC MODEL -- RESERVOIR ENG & REC METHOD
CONTROL OF FACIES GEOMODEL PROPERTIES BY SEISMIC INFORMATION; F.Pivot and P.Biver (Total SA).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166053; Available on CD-ROM; 5 pp)

Modern 3D seismic data in deep offshore context, after applying smart lithoseismic methods, allow proposing drifts for a 3D mapping of sedimentological features. It is of great help for identifying main fairways, main geological architectural elements, but also to detect very subtle features (like channel plugs, small sandy splays, etc). 3D precision of such lithoseismic attributes can sometimes be helpful for placing specific facies in the cells of the geomodel. However, scale issues, the fact that seismic information is not in the same topology as reservoir grids, and not with constant quality everywhere, raises practical problems that force the team to give up the idea to use seismic information in full 3D for driving geological properties of the geomodel. In this paper, an original and powerful approach is presented for building the facies property of a geomodel, keeping full compatibility with a lithoseismic attribute called Pseudo-Vclay (PVCL): Truncated Geophysical Estimation (TGE). (Copyright 2013 SPE)

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1177692 GEOSTATISTICAL ANALYSIS -- RESERVOIR ENG & REC METHOD
THE USE OF GEOPHYSICAL DATA IN MPS FACIES SIMULATION IN A SEISMICALLY TUNED RESERVOIR - A NEW APPROACH BASED ON THE DIRECT SAMPLING ALGORITHM; H.Kombrink, F.Lallier and S.Vignau (Total E&P UK).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166029; Available on CD-ROM; 8 pp)

A relatively new multiple point statistics algorithm based on direct sampling (DS) algorithm has been tested using a turbidite lobe succession as an example. A seismically derived probability cube was used as auxiliary data. The results show that the combination of low resolution auxiliary data (reservoir is seismically tuned) and a high resolution training image produces geologically realistic reservoir facies geometries. It is shown that it is convenient to use the reservoir grid as a training image, which is an efficient way in order to achieve a reliable correlation between facies in the training image and auxiliary data. Since the training image is highly non-stationary, only the realizations obtained when applying a high weight (>0.4) of the auxiliary variable can be appropriately used. Simulations produced by the IMPALA algorithm are less convincing, which leads to the conclusion that it is recommendable to use DS in similar cases. (Copyright 2013 SPE)

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1177693 GEOSTATISTICAL ANALYSIS -- RESERVOIR ENG & REC METHOD
GEOSTATISTICAL MODELING WITH SEISMIC CHARACTERIZATION OF WARA/BURGAN SANDS, MINAGISH FIELD, WEST KUWAIT; K.Al-Anezi, S.Kumar, A.Ebaid, A.Bonnel, N.Lucet, G.Lecante and S.Ortet (Kuwait Oil Co; Beicip Franlab).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166046; Available on CD-ROM; 13 pp)

The Minagish field covers an area of 90 sq km, located in southwestern part of Kuwait in onshore position. The studied Cretaceous Wara and Upper Burgan reservoirs, deposited in fluvio-deltaic environment (clastic rocks), consist of vertically stacked sands with extensive lateral facies variation. Lower Burgan sands are more significant and blocky in nature with little variations in their properties. Reservoirs geometry, their heterogeneities and structural setting are the key issues for the development of the reservoirs. The geostatistical methodology used to simulate a high-resolution geological model representative of the reservoir heterogeneity will be described in this paper. The paper will particularly discuss the techniques used for the integration of seismic attributes to constrain the facies modeling, as well as a nested simulation workflow for a realistic representation of heterogeneities. (Copyright 2013 SPE)

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1177694 GRAVITY DRAINAGE -- RESERVOIR ENG & REC METHOD
ENHANCING THE START-UP OF RESOURCE RECOVERY PROCESSES; G.R.Scott.. U.S. 2013/0,199,779A1, p. 8/8/2013, f. 12/19/2012 (Appl. 720,961), pr. Can. 2/6/2012 (Appl. 2,766,838) (E21B-0043/16). (24 pp)

A method and systems are provided for the enhancement of a start-up of a resource recovery process. The system includes a well pair including a production well at a first elevation and an injection well at a higher elevation. The well pair is configured to force an initial fluid communication between the production well and the injection well to occur at a selected region along a completion of the production well and a completion of the injection well.

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1177695 HEAT CONVECTION -- RESERVOIR ENG & REC METHOD
NATURAL CONVECTION IN A SPHERICAL POROUS ANNULUS: THE BRINKMAN EXTENDED DARCY FLOW MODEL; Sangita, M.K.Sinha and R.V.Sharma (NIT Jamshedpur).. TRANSPORT IN POROUS MEDIA v.100, no.2, pp.321-335, Nov. 2013. (ISSN 1573-1634)

The present study reports results of a numerical investigation of natural convection in a spherical porous annulus. The inner and outer surfaces are subjected to constant temperatures. The Brinkman extended Darcy flow model is considered in this study. The problem is solved numerically employing a successive accelerated replacement scheme. The effect of parameters like Rayleigh number, Darcy number and radius ratio on the fluid flow and heat transfer is examined. There exists a critical radius ratio (rr=3) at which the average Nusselt number attains a peak value. The average Nusselt number decreases as the Darcy number increases.

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1177696 ILISHEVSK FIELD -- RESERVOIR ENG & REC METHOD
RESULTS OF INTRODUCTION OF THE WAG TECHNOLOGY AT ILISHEVSKOYE FIELD; Yu.V.Lukjanov, A.V.Shuvalov, R.G.Nasretdinov, V.R.Zakiev, M.R.Salikhov and A.A.Sulejmanov (Bashneft ANK; Bashneft-Geoproyekt).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.44-47, March 2009. (ISSN 0028-2448; 5 refs; In Russian)

The geological-physical characteristic of Ilishevskoye field site, at which the pilot tests of technology of water-gas influence on productive strata were carried out, is given. The current state of development of a test site is analysed. The results of application of the WAG technology are given.

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1177697 IMMISCIBLE DISPLACEMENT -- RESERVOIR ENG & REC METHOD
SYSTEM AND METHOD FOR PRODUCING OIL; C.P.A.Blom, P.M.Boerrigter and R.Hedden, asrs. (Shell Oil Co).. U.S. 2013/0,153,228A1, p. 6/20/2013, f. 12/13/2012 (Appl. 714,071), pr. U.S. 12/14/2011 (Appl. 61/570,664) (E21B-0043/16; E21B-0043/24). (29 pp)

The present invention provides a system and method for producing oil in which an ether-containing formulation is injected into a formation containing oil and an oil-immiscible formulation is injected into the formation and oil is produced from the formation. The oil-immiscible formulation has a salt content of at most 5 wt.% and is comprised of water having a salt content of at most 5 wt.%.

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1177698 IN SITU COMBUSTION -- RESERVOIR ENG & REC METHOD
IN SITU COMBUSTION SIMULATION: STILL A LONG WAY TO GO; S.Farouq Ali, M.Fuenmayor and J.C.Ferrer.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

In situ combustion is an important enhanced oil recovery process, but its design still relies on Nelson and McNiel's method, published in 1961. Numerical simulation of the process, first proposed in 1965, is still in the development stage. The reasons for this are the complexity of the process, the requirement for using a small grid size, and the difficulty of obtaining reaction kinetics data. This is compounded by the need for reliable relative permeability data with suitable end-points. This paper discusses the authors' experience with the simulation of laboratory combustion tube data as well as that of other investigators. Laboratory measurement of reaction kinetics is briefly reviewed. The pitfalls of backing out reaction kinetics from combustion tube experiments are discussed, and it is shown that often a history match is obtained merely by adjusting relative permeabilities. The use of such kinetics in field design is also discussed. The relative importance of LTO (low-temperature oxidation) in a HTO (high-temperature oxidation) dominated process is also considered. (Original not available from T.U.)

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1177699 LOW PERMEABILITY RESERVOIR -- RESERVOIR ENG & REC METHOD
EVALUATING POSSIBLE SOLUTIONS TO ENHANCING INJECTIVITY IN LOW PERMEABILITY RESERVOIRS - A MODELING PERSPECTIVE; D.Akuanyionwu and M.Norris (Schlumberger).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166041; Available on CD-ROM; 10 pp)

The ability to achieve and sustain injectivity has a significant bearing on the success or failure of a water injection project. Restricted and/or impaired injectivity can result from a number of factors ranging from poor reservoir quality to process-induced formation damage issues among others. For the case of poor reservoir quality, a solution may lie in adapting wellbore configurations to maximize reservoir contact. However, applying these solutions demands an extensive prior evaluation of risk-weighted benefits of available technology options. This paper compares multilateral and hydraulically fractured well technologies as means to enhance injectivity in low permeability reservoirs. A conceptual approach--from a simplified homogenous model to a more detailed heterogeneous model--is employed. A reference high angle injector well type is selected, and an injectivity improvement factor calculated for different multilateral and fractured well options. Several sensitivities were also performed to assess the exposure of selected wellbore configurations to subsurface uncertainties. We find that as reservoir quality deteriorates, the benefit in injectivity improvement becomes even more accentuated with carefully selected wellbore configurations. (Copyright 2013 SPE)

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1177700 MISCIBLE DISPLACEMENT -- RESERVOIR ENG & REC METHOD
METHOD FOR DISPERSION AND ADSORPTION COEFFICIENT ESTIMATION USING AN ANALYSIS OF PRESSURE TRANSITION DURING A VISCOSITY-SWITCH; A.M.Al-Sofi, asr. (Saudi Arabian Oil Co; Aramco Services Co).. World 2013/155,248A1, p. 10/17/2013, f. 4/11/2013 (Appl. 1,336,076), pr. U.S. 4/13/2012 (Appl. 61/624,074) (G01N-0015/08). (36 pp)

Disclosed is a method for estimating porous-media longitudinal dispersion and adsorption coefficients. According to various embodiments of the invention, a method for estimating porous-media longitudinal dispersion coefficients is provided, which includes introducing a pure phase component though a porous medium and introducing a component having a same phase as the pure phase component through the porous medium. The component includes a viscosifying agent having a non-linear viscosity-concentration dependence. The method further includes measuring, using a permeability analyzer, a pressure drop across the porous medium after each introduction at a plurality of intervals over a period of time. Further, the method includes determining, using the measured pressure drops, a pressure transition, and analyzing the pressure transition across the porous medium to determine a dispersion coefficient for the porous medium. The method has application to evaluation of miscible displacement in enhanced oil recovery (EOR) processes.

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1177701 MORICHAL OIL FIELD -- RESERVOIR ENG & REC METHOD
PDVSA PETROLERA SINOVENSA RESERVOIR ENGINEERING PROJECT AND OPTIMIZATION STUDY; O.Campos, J.Patino and G.V.Chalifoux (Petroleos Venezuela SA; Kizer Energy Inc; Petrospec Engineering Ltd).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-374; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 9 pp)

This paper describes, in general, a process followed by PDVSA Petrolera Sinovensa to carry out a detailed reservoir and production optimization study with the objective to identify a follow-up process to cold heavy oil production (CHOP), as well as to optimize their current production and well completions. Thermal recovery processes considered include SAGD, HASD, CSS, horizontal continuous steam drive and a hybrid process referred to as combined drive drainage (CDD). Technical software used includes Petrel for developing the geological static model, CMG IMEX for the dynamic model and PEHPER for well optimization evaluation. Production data analysis and well workover history are used to optimize artificial lift and to identify trends related to specific geological formations which, in turn, are used to improve slotted liner designs and evaluate the addition of electric heating to improve CHOP performance in the horizontal wells. Two wells are identified to pilot electric heating enhancement to confirm the performance of this production optimization process. The ultimate goal is to obtain a design of a thermal follow-up pilot.

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1177702 OIL RECOVERY -- RESERVOIR ENG & REC METHOD
DEPENDENCE OF THE OIL RECOVERY ON THE WELL GRID DENSITY; Sh.F.Takhautdinov, A.F.Silvchenko, R.S.Khisamov, I.G.Yusupov and M.Sh.Zalyatov (Tatneft).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.34-36, March 2009. (ISSN 0028-2448; 6 refs; In Russian)

The theoretical research, which has confirmed dependence of the oil recovery from the well grid density, has been carried out. The received results allow us to forecast the expected oil recovery depending on the well grid density, the production of an average well, and an oil output time.

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1177703 OIL RECOVERY -- RESERVOIR ENG & REC METHOD
EFFECT OF CLAY SWELLING HYSTERESIS ON OIL RECOVERY FACTOR; I.A.Aganin and A.I.Nikiforav (Russian Academy Sciences).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.53-55, March 2009. (ISSN 0028-2448; 8 refs; In Russian)

Two-phase filtration in clay-containing oil reservoir is modeled in this work. Influence of clay swelling hysteresis on the oil recovery factor in layered reservoir is analyzed with numerical examples.

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1177704 ORINOCO TAR BELT -- RESERVOIR ENG & REC METHOD
TECHNOLOGICAL CHALLENGES IN THE INTEGRAL DEVELOPMENT OF THE FAJA PETROLIFERA DEL ORINOCO; T.Villarroel, A.Zambrano, R.Garcia Lugo, P.Martorano and J.Ernandez (PDVSA CVP; Repsol; ARC Solutions).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-536; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 14 pp)

The Faja Petrolifera del Orinoco (F.P.O.) constitutes the foundation for Venezuela's future economic and energy development. Currently, the corporation is promoting new developments which are based on growth at a technological level. These new developments will promote the corporation's medium and long-term autonomy in generating and managing new products based on the experiences which have been obtained in the fields under development by existing joint ventures and in the traditional areas. The objective of this paper is to analyze the need for incorporating new technology as a crucial aspect in the exploitation of these extra-heavy oils. A general vision of the lessons learned in the areas currently under development in the F.P.O. is presented and, also, an analysis of the critical aspects to be considered in the application of new technologies for the best characterization and development of the existing resources. The analysis incorporates the lessons learned from the geological and fluid characterization of the existing reservoirs to the enhanced oil recovery methods applied to date. The results are utilized to determine which technologies can feasibly be applied in future developments and the impact these may have on the profitability of these future ventures in the F.P.O.

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1177705 PERIPHERAL WATERFLOODING -- RESERVOIR ENG & REC METHOD
THE POSSIBLE REASONS OF CONTOUR WATERFLOODING DEGRADATION; R.I.Medvedskiy and A.A.Izotov (Tyumen State Oil Gas Univ).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.59-61, March 2009. (ISSN 0028-2448; 6 refs; In Russian)

Some results of supervision for development of the oilfields, operated with application of contour waterflooding, are given. It is shown, in conclusion, that the technogenic cracks arising at waterflooding, are the reasons of its degradation.

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1177706 POLYMER WATERFLOODING -- RESERVOIR ENG & REC METHOD
ENHANCED OIL RECOVERY USING POLYACRYLAMIDES; (Stichting Polymer Inst).. Europe. 2,604,636A1, p. 6/19/2013, f. 12/15/2011 (Appl. 11,193,901) (C08F-0220/56; C09K-0008/588; C08F-0293/00). (26 pp)

The invention relates to a polymer comprising a central structure to which n branches are covalently attached, wherein n is an integer from 1 to 50, wherein the branches comprise polyacrylamide moieties, wherein the theoretical number average molecular weight of the polymer is at least 100,000g/mol. This polymer is especially suitable for use in enhanced oil recovery.

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1177707 POLYMER WATERFLOODING -- RESERVOIR ENG & REC METHOD
RESERVOIR SIMULATIONS OF A POLYMER FLOOD PILOT IN THE PELICAN LAKE HEAVY OIL FIELD (CANADA): A STEP FORWARD; P.Delaplace, G.Renard, E.Delamaide, T.Euzen, F.Roggero and P.Kopecny (IFP Energies Nouvelles; IFP Technol (Canada) Inc).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166028; Available on CD-ROM; 14 pp)

In 2005, a polymer flood was implemented at pilot scale in the six billion barrels OOIP, 800 to 80,000 cp oil viscosity, Pelican Lake heavy oil field (Northern Alberta, Canada), to evaluate the potential of polymer to significantly increase the primary recovery limited to 5-7% OOIP. The pilot comprising five parallel horizontal wells (two injectors and three producers) is still continuing in 2013 with excellent results that have led the operator to extend polymer injection to field scale. Understanding the wells responses to polymer flood, and optimizing the process have been undertaken through the following steps. (1) Generation of a simplified reservoir model, consistent with geological trends and calibrated with core data. (2) Automatic history matching of the pilot using dedicated tools. (3) Investigation of sensitive parameters on oil recovery (well spacing, well length, polymer concentration, slug size, oil viscosity, etc.). (4) Range definition of optimum sensitive parameters both technically and economically. Successful history matching of the pilot gives some insights on the main influence of reservoir heterogeneities on oil recovery. (Copyright 2013 SPE)

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1177708 PORE VOLUME -- RESERVOIR ENG & REC METHOD
ABOUT THE EFFECTIVE PORE SPACE CONCEPT; V.I.Kolganov (Giprovostokneft).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.62-64, March 2009. (ISSN 0028-2448; 7 refs; In Russian)

Discussion about application of the effective pore space concept, instead of the traditionally used absolute pore space concept, is continued. On the basis of the analysis before conducting domestic and foreign investigations, and also his own analysis of the facts, the author gives his vision of the effective pore space concept.

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1177709 POROSITY (ROCK) -- RESERVOIR ENG & REC METHOD
NARROWING THE LOOP FOR MICROPOROSITY QUANTIFICATION IN CARBONATE RESERVOIRS; A.A.Al-Ratrout, M.Z.Kalam, J.S.Gomes and M.S.Jouini (Abu Dhabi Co Onshore Oper; The Petroleum Inst).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166055; Available on CD-ROM; 13 pp)

Microporosity quantification is becoming increasingly important to assess the distribution of hydrocarbons and their remaining/residual saturations after water flood (and/or gas flood). Assessing uncertainties and limitations in microporosity estimations of carbonate cores, comprising different reservoir rock types have been a challenge for geoscientists. The advent of digital rock physics (DRP) based measurements allow the pore 3D network images from micro- and nano-computed tomography (CT) scans on selected sub-samples to map representative cores and reservoir rock types (RRT). The DRP based microporosity is rigorously examined and compared with other techniques/tests. Conventional techniques, such as mercury injection capillary pressure (MICP), nuclear magnetic resonance (NMR), thin section (TS), and backscattered scanning electron microscopy (BSEM) are used for semi-quantitative evaluations of microporosity. Preliminary measurements on carbonate cores from a giant onshore field of Abu Dhabi, reveals an inverse relationship between microporosity and permeability. Microporosity impacts the porosity-permeability correlation. The relationship between porosity and permeability of carbonate reservoirs shows a better correlation when microporosity is deducted from the total porosity of the reservoir. (Copyright 2013 SPE)

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1177710 PRESSURE BUILDUP ANALYSIS -- RESERVOIR ENG & REC METHOD
ABOUT ANOMALY PRESSURE STAND-UP-CURVES IN CASE OF COMPLEXLY FORMATTED RESERVOIRS OF HIGH VISCOSITY OIL BY THE EXAMPLE OF TATRITEKNEFT NGDU'S OIL FIELDS; N.V.Nefyodov, A.V.Kalmykov, A.G.Egorov and A.B.Mazo (TatRITEKneft; NPP Chorny Klyutch; Kazan State Univ).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.37-39, March 2009. (ISSN 0028-2448; 3 refs; In Russian)

The subject is the pressure build-up curves from evolution during the recovery of a high viscosity oil field. New, nonclassical, hydrodynamical schemes of geological objects to explain anomaly forms of curves is discussed. The data gives some basis on a new approach to estimate pressure build-up-curves signification.

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1177711 RELATIVE PERMEABILITY -- RESERVOIR ENG & REC METHOD
REVEALING RELATIVE PERMEABILITY UNCERTAINTIES THROUGH INTEGRATED EXPERIMENTAL AND MODELING WORKFLOW; M.Yaslam, S.G.Ghedan and Z.Kalam (Abu Dhabi Co Onshore Oper; Computer Modelling Grp Ltd).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166060; Available on CD-ROM; 11 pp)

Relative permeability profile is one of the most uncertain parameters and challenging requirements in field performance models. It is a mandatory element for multi-phase flow calculations and has a significant impact on development schemes, expected hydrocarbon recovery factor and the related revenues. Moreover, it impacts the surface facilities decision based on predicted produced fluids and recycling requirements, which might affect the economics of any related projects. Accordingly, obtaining representative relative permeability profile is a continuous challenge in the industry through common laboratory methods of steady state and unsteady state along with other numerical modeling approaches. Experimental relative permeability profiles using both methods of steady state and unsteady state have been obtained for one of the main reservoir rock types (RRT A) from a giant carbonate field in the Middle East. Comprehensive characterization and detailed numerical modeling for mixed wettability carbonates at full reservoir conditions has been studied covering all the details of rock properties, capillary pressure coupled with relative permeability profiles. The analysis revealed the uncertainty associated with each measurement method. (Copyright 2013 SPE)

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1177712 RELATIVE PERMEABILITY -- RESERVOIR ENG & REC METHOD
DRAINAGE OF CAPILLARY-TRAPPED OIL BY AN IMMISCIBLE GAS: IMPACT OF TRANSIENT AND STEADY-STATE WATER DISPLACEMENT ON THREE-PHASE OIL PERMEABILITY; H.Dehghanpour and D.A.DiCarlo (Alberta Univ; Texas Univ, Austin).. TRANSPORT IN POROUS MEDIA v.100, no.2, pp.297-319, Nov. 2013. (ISSN 1573-1634)

In a previous paper, we showed that relative permeability of mobilized oil (kro), measured during tertiary gravity drainage, is higher than that of the same oil saturation in other tests where oil is initially a continuous phase. We also showed that tertiary kro correlates to both water saturation (Sw), water relative permeability (krw), and the change in water saturation with time (dSw/dt). To answer these relationships, we conducted specific three-phase displacement experiments. The results suggest that steady-state water influx, in contrast to transient water displacement, does not enhance kro. Instead, reducing water influx rate increases oil flow. Furthermore, according to our pore scale hydraulic conductivity calculations, viscous coupling and fluid positioning do not sufficiently explain the observed correlation between kro and Sw. We conclude that tertiary kro is controlled by the oil mobilization rate, which in turn is linked to the rate of water saturation decrease with time, dSw/dt. Finally, we develop a simple model which relates tertiary kro to transient two-phase gas/water relative permeability.

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1177713 RESERVOIR CHARACTERIZATION -- RESERVOIR ENG & REC METHOD
PILON FIELD: CHARACTERIZATION OF A HEAVY CRUDE OIL RESERVOIR WITH GAS CAP; J.Fernandez, E.Rodriguez, R.Urdaneta, J.Sanchez and O.Bague (Petroleos Venezuela SA; Beicip Franlab).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-109; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 11 pp)

Pilon is a mature field that covers a surface of ca 100 sq km in the region of the Orinoco Oil Belt in eastern Venezuela. It produces heavy crude oil density ranging from 10 to 15° API. This study is concerned with three reservoirs, of which two of them show a gas cap, contrary to what was previously established where only one reservoir was considered to have a gas cap. As a result, original oil in place (OOIP) was increased 5% while OGIP was reduced by 12% when compared to previous official values. This is due to variation in spatial distribution of rock properties and fluids, as well as the new original oil water contact (OOWC) depths. Results from this study also showed the importance of previously disregarded gas cap expansion and aquifer activity in maintaining reservoir pressure over 50 years of production, thus increasing the ultimate recovery factor. This finding opens the way to further development and new optimization of the Pilon field. This study also showed that concurrent integration of analysis from different disciplines were necessary to build a new fluid model from which productive zones of the reservoir could be clearly delimited.

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1177714 RESERVOIR CHARACTERIZATION -- RESERVOIR ENG & REC METHOD
IMPROVED RESERVOIR CHARACTERIZATION AND ITS IMPACT ON LOCATING THERMAL DEVELOPMENT WELLS IN THE PETROCEDENO EOR PILOT AREA; T.H.Hoye, I.Kaas and J.E.Allers (Petrocedeno).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-160; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 12 pp)

The Petrocedeno extra-heavy oil field has been operating since 1999. The strategy has been to initially produce the field by cold production, and then increase recovery with enhanced oil recovery (EOR) techniques. The current plan comprises testing three different thermal recovery techniques--steam assisted gravity drainage (SAGD), horizontal alternating steam drive (HASD) and steam drive with vertical steam injectors (SD)--to be used in different types of geological settings. A primary objective has been to find the optimal location for such testing. This triggered the need for additional delineation wells within the EOR pilot area. In delineation phase-1, 30 vertical wells were drilled and about 550 m of core were recovered. The result of the new drilling campaign indicated more frequent occurrence of minor intraformational shale layers, possibly with less lateral extension than previously thought. The area of interest was further narrowed down to the phase-2 area in the southwestern part of the EOR area. In delineation phase-2, 12 new vertical wells were added, reducing the spacing of wells to approximately 500 m to further understand the reservoir architecture. This paper aims on demonstrating how the new well data influenced the location of the thermal wells.

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1177715 RESERVOIR CHARACTERIZATION -- RESERVOIR ENG & REC METHOD
MULTISCALE CHARACTERIZATION ON THE PORE NETWORK IN CARBONATE ROCKS; T.Solling, X.Marquez, T.McKay and A.Fogden (Maersk Oil Res Technol Ctr; Australia National Univ).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166023; Available on CD-ROM; 17 pp)

The flow properties of carbonate reservoir rocks depend on the pore and throat shape (geometry), the way they are interconnected (topology) and on the forces associated with the fluid-rock interactions (wettability). We present the preliminary results of an ongoing multiscale study of carbonate rocks which integrates classical diagenetic characterization of their pore system with 3D visualization and analysis of its structure (from micro-CT imaging) and mineral and elemental surface composition (from QEMSCAN). Tomograms of carbonate cores and minicores were obtained. Macroporosity, microporosity and pore networks were extracted by image processing and analysis using the MANGO software. These same cores and minicores were then sectioned for 2D maps of their mineral composition to be acquired by QEMSCAN and subsequently spatially registered into the corresponding 3D tomogram. In addition to this analysis of carbonate samples in their dry state, minicores were also prepared and micro-CT imaged in a series of wet states after saturation, drainage, aging and spontaneous imbibition. The observations will help in simulation of multiphase flow in carbonates to predict and enhance the recovery of oil. (Copyright 2013 SPE)

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1177716 RESERVOIR FLUID FLOW -- RESERVOIR ENG & REC METHOD
CONFORMING FINITE-ELEMENT METHODS FOR MODELING CONVECTION IN AN INCOMPRESSIBLE ROCK MATRIX; L.Gross, T.Poulet and H.A.Sheldon (Queensland Univ; CSIRO Earth Science).. TRANSPORT IN POROUS MEDIA v.100, no.2, pp.225-246, Nov. 2013. (ISSN 1573-1634)

Coupled heat transport and fluid flow in porous rocks play a role in many geological phenomena and viscous oil recovery. The solution of the incompressible Darcy flux problem and the advection-dominated heat transport both provide numerically challenging problems typically addressed using methods specialized for the individual equations. To avoid the usage of two different meshes and solution approximations for pressure, flux, and temperature, we propose using standard conforming finite-element methods on the same mesh for both problems. The heat transport equation is solved using a linearized finite-element flux corrected transport scheme which introduces minimum artificial diffusion based on the discretized transport problem. The Darcy flux calculation from pressure uses a global post-processing strategy which, at the cost of an extra partial differential equation, leads to highly accurate flux approximation. In the limit of zero element size, the flux is in fact, incompressible. We investigate the numerical performance of our proposed method on a test problem using the parallelized modeling environment escript. We also test the approach to simulate convection in geologically relevant scenarios.

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1177717 RESERVOIR HEATING -- RESERVOIR ENG & REC METHOD
HEATING A HYDROCARBON RESERVOIR; G.R.Scott.. U.S. 2013/0,199,777A1, p. 8/8/2013, f. 12/19/2012 (Appl. 720,962), pr. Can. 2/6/2012 (Appl. 2,766,844) (E21B-0043/243). (24 pp)

A system and methods are provided for heating a hydrocarbon reservoir, wherein the reservoir includes a reduced oil saturation zone in proximity to a heavy oil zone. The method includes injecting an oxidizing gas into the reduced oil saturation zone and combusting hydrocarbons included within the reduced oil saturation zone. The method also includes determining a level of heating within the heavy oil zone that is conductively heated by combustion of the hydrocarbons within the reduced oil saturation zone, and producing hydrocarbons from the heavy oil zone once a desired level of heating has occurred.

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1177718 RESERVOIR MANAGEMENT -- RESERVOIR ENG & REC METHOD
SAFE-GUARDING OIL RECOVERY THROUGH IMPLEMENTATION OF CYCLIC PRODUCTION IN SHORT CIRCUITED PATTERNS; A.Adhoobi, A.Ramli, A.Ghufaili, G.Bacic, K.Belushi and M.Van Koolwijk (Petroleum Develop Oman LLC).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-160024; Available on CD-ROM; 9 pp)

This paper describes the principles of cyclic production implemented in a matured water flood field to manage the occurrences of short circuit in a pattern. Systematic surveillance and reservoir management tools are used to analyze the fracture initiation, impact on production and reserves performance and predict the future behavior of the field. These include analytical tools, diagnostic methods, tracer surveys and downhole temperature monitoring, which lead to the implementation of cyclic production methodology. The tight reservoir is situated in a gently dipping, fault bounded matrix carbonate in North Oman. The under-saturated reservoir contains light oil, with low viscosity (API gravity of 35°). Waterflooding was implemented 10 years after natural depletion with multilateral horizontal water injectors drilled about 30 m below the producers. During peak production, the water was unintentionally injected above fracture pressure which caused fracturing in several patterns in this field. Since May 2008, the injectors and producers are operated on scheduled cycles in three patterns where these short circuits were observed. (Copyright 2013 SPE)

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1177719 RESERVOIR MODEL -- RESERVOIR ENG & REC METHOD
DEVELOPMENT OF A METHODOLOGY FOR NEW PRODUCER WELLS ALLOCATION FROM THE COMPUTATIONAL MODELING BASED ON STREAMLINE SIMULATION; O.P.Rueda Camacho and M.J.Bernal Mora (Santander Industrial Univ).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 14 pp)

The main idea of streamline simulation is to split the equation which governs the fluids movement from a tridimensional problem in many unidirectional problems solved through streamlines. The solutions of the field of pressures indicate the paths which the streamlines have to follow in space, at the same times it solves the physics of movement over a properly one-dimensional solution along each streamline. This way, the fluids move through a grid of streamlines rather than a conventional grid of discretized blocks. This work is focused towards a punctual application which is the estimation or allocation of potential productive zones which lead to the establishment of infill wells. At the same time the advantages of streamline simulation over the conventional FD (finite difference) simulation are compared using a homogenous and anticline heterogeneous model.

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1177720 RESERVOIR MODEL -- RESERVOIR ENG & REC METHOD
USING NEAR WELLBORE UPSCALING TO IMPROVE RESERVOIR CHARACTERIZATION AND SIMULATION IN HIGHLY HETEROGENEOUS CARBONATE RESERVOIRS; V.Chandra, S.Geiger, P.W.M.Corbett, R.Steele, P.Milroy, A.Barnett, P.Wright and P.Jain (Heriot Watt Univ; BG Group).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166033; Available on CD-ROM; 14 pp)

Carbonate reservoirs host a major portion of the world’s remaining conventional and unconventional hydrocarbon reserves, typically containing multi-scale geological heterogeneities varying over many orders of magnitude in size. Characterizing and representing them robustly in reservoir models is a prime challenge in carbonate reservoir simulation. One of the key aims of this paper is, hence, to present a novel near wellbore upscaling (NWU) workflow that addresses the challenges associated with conventional carbonate modelling workflows. The NWU workflow provides a systematic geostatistical approach to obtain more realistic representation of multi-scale geological-petrophysical heterogeneities in complex carbonate reservoir simulation models. Using well log and core data, near wellbore regions were recreated to represent the core scale heterogeneities via high resolution geostatistical models. These core/centimeter scale permeability models were then upscaled into wireline/decametre scale using flow-based upscaling. The results, coupled with wireline data were used to generate global porosity-permeability and vertical-horizontal permeability relationships for reservoir simulation. Importantly, the workflow mitigates sample bias, which is frequently observed in the core data for carbonate reservoirs. (Copyright 2013 SPE)

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1177721 RESERVOIR MODEL -- RESERVOIR ENG & REC METHOD
COMBINING UNSTRUCTURED GRIDS, DISCRETE FRACTURE REPRESENTATION AND DUAL-POROSITY MODELS FOR IMPROVED SIMULATION OF NATURALLY FRACTURED RESERVOIRS; C.Maier and S.Geiger (Heriot Watt Univ).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166049; Available on CD-ROM; 13 pp)

Commonly, dual-porosity and dual-permeability models are employed to simulate naturally fractured reservoirs (NFR). Recently, dual-porosity models have been extended to include more than one transfer function per simulation grid block. These so-called multi-rate dual-porosity models (MRDP) allow for more than one set of rock and fluid parameters to be present within one grid cell, which captures the natural variability in fracture, matrix, and fluid properties more accurately. Discrete fracture and matrix (DFM) based simulators are an alternative in NFR simulation. They use unstructured meshes to model large-scale fractures, fracture corridors, and faults explicitly but cannot represent small-scale fractures because field simulations would become intractable, even with parallelisation. In this paper, we demonstrate a combined MRDP-DFM approach for the first time. We demonstrate how the MRDP-DFM approach can be discretised using unstructured (tetrahedral) meshes. We use a suite of proof-of-concept simulations to demonstrate that our MRDP-DFM approach yields more realistic forecasts of oil recovery due to gravity drainage and imbibition in fractured reservoirs because it allows us to represent the multiscale heterogeneities inherent to NFRs more realistically. (Copyright 2013 SPE)

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1177722 RESERVOIR MODEL -- RESERVOIR ENG & REC METHOD
WHEN A GOOD HISTORY-MATCHED MODEL RESULTS IN A BAD FORECAST; QUESTION YOUR PETROPHYSICAL DATA; H.H.Qutob, A.Khlaifat and M.S.Efnik (Senergy (GB) Ltd; Abu Dhabi Polytechnic; Mubadala Petroleum).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166056; Available on CD-ROM; 6 pp)

When implementing any field development plan or an enhanced oil recovery (EOR) project, it is critical to understand the key variables that influence the success of the plan such as reservoir parameters and fluid properties. Mature oil and gas fields increasing complexity of recovery mechanisms dictates an improved understanding of the fields behaviour and the technologies that must be applied to maintain oil production plateau and achieve ultimate recovery potential. History matching forms an integral part of the reservoir modeling workflow process. It is used to examine the field performance under different production and injection scenarios in order to select the best scenario for hydrocarbon production. This paper discusses how different types of uncertainty in future reservoir performance are usually evaluated from the simulated performance of a number of reservoir models. The ability of sampling methods to assess the uncertainty in reservoir predictions is evaluated. The paper focuses on uncertainties and errors in petrophysical data. A Monte Carlo error analysis is presented to assess the affect of the errors on the petrophysical results. (Copyright 2013 SPE)

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1177723 RESERVOIR MODEL -- RESERVOIR ENG & REC METHOD
PARALLEL ADAPTIVE MESH REFINEMENT FOR CAPTURING FRONT DISPLACEMENTS: APPLICATION TO THERMAL EOR PROCESSES; Y.Mesri, J.M.Gratien, O.Ricois and R.Gayno (IFP Energies Nouvelles).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166058; Available on CD-ROM; 12 pp)

This paper presents a parallel adaptive mesh refinement scheme that allows the achievement of an optimal accuracy by using dynamic mesh adaptation. The mesh refinement is close to the high error of temperature field. Periodic adaptive refinement is performed such as the refined zones accurately describe the temperature front displacement. This is based on the definition of an error estimator and the search of the optimal mesh that minimizes the error estimator under the constraint of a given number of cells. The main bottleneck of adaptive mesh refinement in a parallel context is the load unbalance between processes due to refinement around local physical phenomena. This paper also presents a parallel mesh adaptation algorithm able to deal with partitioned and distributed meshes. Unbalance detection is also taken into account by using a load balancing algorithm capable up effectively improving the performance of the simulation. Application of this dynamic meshing approach in simulation models with steam injection demonstrates that efficient dynamic meshing can be implemented in a general purpose simulator. (Copyright 2013 SPE)

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1177724 RESERVOIR MODEL -- RESERVOIR ENG & REC METHOD
OPTIMISING GAS INJECTION IN CARBONATE RESERVOIRS USING HIGH-RESOLUTION OUTCROP ANALOGUE MODELS; S.Agada and S.Geiger (Heriot Watt Univ).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166061; Available on CD-ROM; 13 pp)

Outcrop analogue studies for complex subsurface reservoirs have become increasingly common because they allow us to integrate reservoir characterisation with reservoir simulation. This enables us to correlate distinct geological features that can be observed in the outcrop but are normally upscaled in dynamic models, to complex flow phenomena present in real reservoirs. Hence, we can construct static models that are better calibrated because they contain the key geological structures controlling the flow behaviour and translate them into dynamic models that are upscaled properly. In this study, we use a high resolution simulation model of a middle Jurassic carbonate ramp outcrop from the High Atlas Mountains of Morocco, which can be regarded as an analogue for the Arab D formation, to investigate fluid flow processes during enhanced oil recovery (EOR). Our work aims to improve our understanding of the flow dynamics occurring during secondary and tertiary gas injection in complex carbonate reservoirs. We simulated gas injection as both, miscible and immiscible, where miscibility is determined by the minimum miscibility pressure (MMP) estimated from correlations. (Copyright 2013 SPE)

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1177725 RESERVOIR MODEL -- RESERVOIR ENG & REC METHOD
FULLY IMPLICIT TWO-PHASE RESERVOIR SIMULATION WITH THE ADDITIVE SCHWARZ PRECONDITIONED INEXACT NEWTON METHOD; L.Liu, D.E.Keyes and S.Sun (King Abdullah Univ).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166062; Available on CD-ROM; 11 pp)

The fully implicit approach is attractive in reservoir simulation for reasons of numerical stability and the avoidance of splitting errors when solving multiphase flow problems, but a large nonlinear system must be solved at each time step, so efficient numerical methods are required to treat the nonlinearity. The Additive Schwarz Preconditioned Inexact Newton (ASPIN) framework, as an option for the outermost solver, successfully handles strong nonlinearities in computational fluid dynamics, but is barely explored for the highly nonlinear models of complex multiphase flow with capillarity, heterogeneity, and complex geometry. In this paper, the fully implicit ASPIN method is demonstrated for a finite volume discretization based on incompressible two-phase reservoir simulators in the presence of capillary forces and gravity. Numerical experiments show that the number of global nonlinear iterations is not only scalable with respect to the number of processors, but also significantly reduced compared with the standard inexact Newton method with a backtracking technique. Moreover, the ASPIN method, in contrast with the IMPES method, saves overall execution time because of the savings in timestep size. (Copyright 2013 SPE)

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1177726 RESERVOIR MODEL -- RESERVOIR ENG & REC METHOD
APPLICATION OF ENHANCED VERTICAL PERMEABILITY RESULTING FROM THE DEEPLY PENETRATING THALASSINOIDES BURROWS IN DUAL-POROSITY/DUAL-PERMEABILITY MODELING OF A FRACTURED MIDDLE EAST OIL RESERVOIR; Z.A.Ali-Ali, O.Ukaegbu, E.A.Clerke, A.Al-Omair and M.Ragab (Saudi Aramco).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166034; Available on CD-ROM; 8 pp)

Waterflood simulation is very sensitive to the input geological model especially as it pertains to the vertical permeability. This study revisits a waterflood simulation with an improved fracture model which influences vertical permeability and with an enhanced matrix vertical permeability in mudstones as a result of vertical Thalassinoides burrows. The lower zones of the reservoir are dominated by low permeability mudstones with thin grain-rich storm deposits with significant permeability. The core plug data for these intervals is dominated by the low porosity and low permeability of the mudstone matrix. In the past, the vertical permeability of these intervals has been simulated as approximately that of the horizontal core plugs. In this paper, the waterflood reservoir simulation is revisited with the vertical permeability values of these layers significantly increased, owing to new data showing the potential impact of deeply penetrating vertical Thalassinoides burrows filled with grainy fabrics within the dominant mudstone layers. This study uses the dual-porosity/dual-permeability (DPDP) simulation model process with an enhanced vertical permeability, Kv, in the mudstone layers. This paper presents the new results from this simulation study in a multi-million cell full-field reservoir model and compares the results to previous efforts. (Copyright 2013 SPE)

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1177727 RESERVOIR MODEL -- RESERVOIR ENG & REC METHOD
MECHANISTIC MODELING FOR WELL CONFIGURATION SCREENING IN EOR PILOT; T.Obeida, N.Al-Alawi and H.Al-Sahn (Benghazi Univ; Abu Dhabi Co Onshore Oper).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166057; Available on CD-ROM; 7 pp)

Pilot objectives are usually predetermined before pilot field implementation. In order to study different pilot performance predictions, dynamic reservoir simulation is used as a screening tool to ensure pilot designs meet pilot objectives. A mechanistic &quote;box&quote; model is a limited size simulation model used to compare different pilot configuration performances on an equal basis and so saves both CPUs and simulation time. A 1 km x 1 km mechanistic model was constructed with refined grid of 25 m x 25 m. The reservoir properties, attributes and layering used are similar to the geological static model to avoid upscaling issues. Transmissibility multipliers were used at the boundaries of the mechanistic model and production or injection rates of the edge wells were constrained to mimic full pattern performance. Several pilot scenarios were studied in terms of well configurations, well spacing, well type (vertical or horizontal), well completion (reservoir sub-zone), injection/production rates, injected fluid (water, gas), injection continuity (continuous injection, WAG) and WAG cycles. All of these prediction cases were run under reservoir voidage replacement. Certain criteria were selected to screen these cases such as recovery factor at breakthrough, ultimate recovery factor, sweep efficiency, injection rates and breakthrough time. More than 50 cases were run and screened using mechanistic models. (Copyright 2013 SPE)

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1177728 RESERVOIR MONITORING -- RESERVOIR ENG & REC METHOD
USING 4D SEISMIC TO VALIDATE THE GEOMODEL FOR THE SOUTH ARNE CHALK FIELD; M.Luthje, J.Stokkendal, C.C.Lindelow-Marsden, K.Johansen and L.J.K.Jensen (DONG Energy E&P).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166022; Available on CD-ROM; 15 pp)

The South Arne chalk field is located in the Danish sector of the North Sea. Production started in 1999 using horizontal wells and water flooding with a cumulative production to date of 141 MMbbl from the two oil-bearing intervals: Maastrichtian (Late Cretaceous) Tor Formation and Danian (Paleocene) Ekofisk Formation. 3D seismic was shot in 1995 (pre-production), in 2005 and in 2011. The matrix permeability of the field is low but greatly enhanced due to natural fractures. Based on the 2005 seismic interpretations, a geomodel was built with emphasis on capturing the permeability enhancement due to the occurrence of fractures. The modelling was done using discrete fracture network (DFN) modelling. The model has been history matched to production data with a good overall result. The seismic shot in 2011 was compared to pre-production seismic data giving valuable information about unswept areas and water cutting as well as differences between the two reservoir intervals. The 4D data also shows that the faults have significant influence on fluid flow as modelled in the geomodel. (Copyright 2013 SPE)

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1177729 RESERVOIR MONITORING -- RESERVOIR ENG & REC METHOD
WATER-ENCROACHMENT MONITORING APPLIED TO OFFSHORE OIL FIELD; A.M.Al-Dhafeeri, F.S.Al-Beshri, A.Al-Sadah, J.S.Kottuthala, L.R.D.Teran Ortegon, H.Shaqlouf and H.Azam (Al-Khafji Joint Operations; Schlumberger).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166063; Available on CD-ROM; 8 pp)

A methodology for tracing the advancement of water encroachment from an aquifer by extensive use of behind-casing saturation evaluation logs is introduced. This approach relies on a large number of behind-casing saturation evaluation logs with a large coverage in space and time. A visualization of water saturation, populated through a smooth interpolator in a 3D grid at prescribed timestep, is obtained. Water movement can be visualized in cross sections and maps per reservoir layer. These results aid in the understanding of the path of water invasion and can be used for history-matching a reservoir simulation model at a later stage. Data required are behind-casing saturation logs (sigma) as well as interpreted elemental volumes from openhole logs, production logs, production history, and perforated intervals. The time-lapsed saturation is cross-checked against water-breakthrough evidence, such as water-production history and production-log runs. The perforated intervals aid in the verification of the depths of entry of water. A form of production history transformed into a form of time-lapsed well log format is used to supplement the water saturation. (Copyright 2013 SPE)

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1177730 RESERVOIR PERFORMANCE -- RESERVOIR ENG & REC METHOD
A SYSTEM OF KEY PERFORMANCE INDICATORS IN INTELLIGENT FIELDS; C.Temizel, S.Dursun, S.Purwar and B.Hancioglu (Aera Energy; Halliburton; Rice Univ).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166019; Available on CD-ROM; 15 pp)

The vast amount of historical and real-time data in intelligent/smart fields can be used to make efficient decisions for improving field production. However, large volumes of data may not necessarily result in high-quality decisions, especially when uncertainty exists in the field development. In this paper, a decision-making approach that can be applied to the problems related to key performance indicators in intelligent/smart fields is presented. The proposed system involves two novel indices, well present performance index (WPPI), and well future potential index (WFPI), which integrate the present and future performance, value, and contribution of each well (production and injection) in the intelligent field. WPPI is an indicator of how the well is currently performing, and WFPI determines the future value of the well to help make workover or shut-in decisions. WPPI and WFPI offer more global solutions, while known key performance indicators focus on field-, pattern-, or well-level analysis. The proposed system can rank the wells in the field using a digital oilfield workflow which automates the decision-making process and helps reservoir management. (Copyright 2013 SPE)

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1177731 STEAM FLOODING -- RESERVOIR ENG & REC METHOD
METHOD AND SYSTEM FOR LIFTING FLUIDS FROM A RESERVOIR; T.A.Boone.. U.S. 2013/0,153,218A1, p. 6/20/2013, f. 11/16/2012 (Appl. 679,604), pr. Can. 12/16/2011 (Appl. 2,762,451) (E21B-0043/24; E21B-0043/12). (12 pp)

Systems and methods are provided for lifting hydrocarbons from reservoirs. A method includes injecting a heat carrier fluid comprising steam, hot water, or both into a first well and injecting an organic compound into a second well. The organic compound is selected to vaporize to a gas from the heat provided by the heat carrier fluid, forcing produced fluids to the surface. The produced fluids are collected at the surface. The systems and methods relate to the use of steamflooding to recover hydrocarbons. Techniques are described for utilizing solvents, such as liquefied petroleum gas, to facilitate lifting materials in steam-assisted gravity drainage wells.

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1177732 STEAM INJECTION -- RESERVOIR ENG & REC METHOD
ENHANCING BITUMEN RECOVERY FROM OIL SANDS IN STEAM-ASSISTED GRAVITY DRAINAGE (SAGD); P.Srivastava, J.D.Debord and B.J.Stefan (Baker Hughes Inc).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-305; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 6 pp)

This paper describes the development of a steam additive to enhance bitumen production in a steam-assisted gravity drainage (SAGD) operation. This steam additive enhances bitumen production by accelerating the release of bitumen encapsulating the sand grains. The condensed water is then able to carry a higher loading of this released bitumen. A lab-based setup was created to simulate the SAGD process by passing pressurized steam over a bed of pre-heated synthetic oil sands. Addition of 100-10,000 ppm of additive to the steam resulted in an 18-43% increase in bitumen recovery as compared to the baseline (no additive, pure steam) from oil sands in the lab-based SAGD extractions. These lab-based test results establish the effectiveness of this steam additive to enhance bitumen recovery at a dosage rate as low as 100 ppm.

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1177733 STEAM INJECTION -- RESERVOIR ENG & REC METHOD
HOMOGENEOUS STEAM INJECTION TECHNOLOGY IN HEAVY OIL HORIZONTAL WELLS; S.Sun, Z.Guan, Y.Guo and X.Wang (Liaohe Oilfield).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-225; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 6 pp)

The horizontal hole section of heavy oil thermal recovery horizontal wells absorbs steam unevenly which causes poor sweep efficiency. To address this problem, we field tested a dual-string steam injection technology in horizontal wells and multipoint steam injection technology in horizontal wells. Dual-string steam injection technology utilizes a double tubing string design which can selectively inject steam at different rates at the well heel and/or the well toe. Multipoint steam injection technology utilizes a tubing string design which allows steam injection at multiple points along the well. By using these two technologies, a more homogeneous steam injection along the horizontal well was obtained to both enhance sweep efficiency and increase cycle production times. Production characteristics from both processes are given.

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1177734 STEAM INJECTION -- RESERVOIR ENG & REC METHOD
IMPROVING PRODUCTIVITY AND STEAM CONFORMANCE OF SAGD WELLS; C.P.Damas, M.Nukhaev and D.Rudenko (Schlumberger).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-392; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 6 pp)

Possible modifications of the conventional steam-assisted gravity drainage (SAGD) completion design based on a slotted liner with very limited flow area were considered. A numerical study based on a reservoir model/production scenario typical for a Venezuelan heavy oil field was conducted to compare a series of completion technologies to improve the productivity of SAGD wells. A SAGD well pair using conventional slotted liner in both injector and producer was compared to both higher open area screens and to a well completion using advanced inflow control devices (ICD). It was proven, on the basis of an advanced completion strategy for SAGD, that it has the potential to (1) improve economic efficiency of the process; (2) improve steam conformance from heel-to-toe of the horizontal well; and (3) prevent steam breakthrough. This study was conducted using an advanced thermal/compositional numerical simulator along with a multi-segment well model and an ICD model.

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1177735 STEAM INJECTION -- RESERVOIR ENG & REC METHOD
IMPROVE STEAM DISTRIBUTION IN CANADIAN RESERVOIRS DURING SAGD OPERATIONS THROUGH COMPLETION SOLUTIONS; E.Tachet, J.Alvestad, R.Wat and K.Keogh (Statoil ASA).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-332; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 15 pp)

The SAGD recovery process typically uses 500-1,000 m long horizontal wells. Due to long computer simulation time, the dynamic performance of these wells is usually not modelled accurately. However, friction and heat transfer along the wellbore, as well as the toe-to-heel effect, will have a detrimental influence on the steam distribution along the injector, leading to poor sweep efficiency. The first aim of this study was to quantify the effect of friction and heat transfer on the steam distribution in the reservoir. The second objective was to investigate using outflow control devices along the wellbore to reduce this nonuniform steam distribution by restricting or increasing steam flow in certain zones to compensate for the nonuniform steam distribution. However, reservoir heterogeneity also impacts outflow control device placement since, if the location of these heterogeneous intervals along the wellbore is not known, proper placement of the outflow devices is uncertain. In this study, a typical Canadian oil sands reservoir is modeled using the multi-segments well option in Eclipse 300(TM). The results from reservoir simulations with and without advanced completion solutions are presented. The wells’ performances and the dynamic development of the steam chamber are discussed.

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1177736 STEAM INJECTION -- RESERVOIR ENG & REC METHOD
STIMULATION OF OIL PRODUCTION BY STEAM AND GAS HUFF-AND-PUFF ON THE MATURE HEAVY OIL FIELD; K.E.Dzhalalov, Yu.I.Stashok, S.V.Kaygorodov and A.E.Konovalov (Rosneft Scientific Ctr).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-342; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 5 pp; Abstract only)

[For information only - meeting paper abstract]

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1177737 STEAM INJECTION -- RESERVOIR ENG & REC METHOD
[R] SIMULATION OF STEAM-ASSISTED GRAVITY DRAINAGE (SAGD) PROCESS IN LABORATORY-SCALE FRACTURED MODEL; S.Mobeen Fatemi, R.Kharrat and S.Vossoughi (Sharif Univ Technology; Petrol Univ Technol (Iran); Kansas Univ).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-303; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 8 pp) SRLA# 1,136,624

[For abstract and indexing, see Abstract #1,136,624]

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1177738 STEAM INJECTION -- RESERVOIR ENG & REC METHOD
[R] ADDRESSING HORIZONTAL STEAM INJECTION COMPLETIONS CHALLENGES WITH CHEVRON'S HORIZONTAL STEAM TEST FACILITY; J.H.Fram and J.C.Sims (Chevron Energy Technol Co).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-398; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 8 pp) SRLA# 1,051,743

[For abstract and indexing, see Abstract #1,051,743]

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1177739 SURFACE ACTIVE AGENT -- RESERVOIR ENG & REC METHOD
SURFACTANT COMPOUNDS, COMPOSITIONS COMPRISING SAME, METHOD FOR SYNTHESIZING SAME, AND USES THEREOF, IN PARTICULAR FOR THE ASSISTED RECOVERY OF HYDROCARBONS [COMPOSES TENSIO-ACTIFS, COMPOSITIONS EN COMPORTANT, PROCEDE DE SYNTHESE ET UTILISATIONS, NOTAMMENT POUR LA RECUPERATION ASSISTEE D'HYDROCARBURES]; M.Bourrel and N.Lagasse, asrs. (Total SA).. World 2013/150,131A1, p. 10/10/2013, f. 4/5/2013 (Appl. 1,357,181), pr. Fr. 4/6/2012 (Appl. 1,253,221) (C09K-0008/584; C07C-0309/17; C07C-0309/10; C11D-0001/12). (26 pp; In French)

The present invention relates to surfactant compounds. The invention further relates to a method for preparing the compounds and to aqueous surfactant compositions comprising one or more of the compounds, in particular a distribution of the compounds. The invention also relates to the use of the compounds and composition for the assisted recovery of hydrocarbons. The invention relates to a method for extracting hydrocarbons in an underground formation. These surfactants are alkyl aryl molecular structures that are alkoxylated and sulfonated, particularly suited to high salinity and hardness environments of carbonate reservoirs.

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1177740 TAR SAND OIL RECOVERY -- RESERVOIR ENG & REC METHOD
RECOVERY FROM A HYDROCARBON RESERVOIR; G.R.Scott and R.M.Bacon.. U.S. 2013/0,153,215A1, p. 6/20/2013, f. 11/2/2012 (Appl. 667,845), pr. Can. 12/16/2011 (Appl. 2,762,439) (E21B-0047/09; E21B-0043/12). (15 pp)

Embodiments described herein provide systems and methods for improving production of hydrocarbon resources. A method for improving recovery from a subsurface hydrocarbon reservoir includes drilling a well comprising a horizontal segment through a reservoir interval and installing a pipe string in the horizontal well segment, wherein the pipe string comprises a plurality of screen assemblies. Each of the plurality of screen assemblies is located and a hole is drilled in the pipe string at a portion of the plurality of screen assemblies. Each hole is drilled at a desired orientation to a radial axis of the drill string. The methods and systems have application to tar sand oil recovery which may employ steam-assisted gravity drainage.

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1177741 TAR SAND OIL RECOVERY -- RESERVOIR ENG & REC METHOD
RECOVERY FROM A HYDROCARBON RESERVOIR; G.R.Scott.. U.S. 2013/0,153,216A1, p. 6/20/2013, f. 11/2/2012 (Appl. 667,837), pr. Can. 12/16/2011 (Appl. 2,762,448) (E21B-0047/00; E21B-0043/12). (14 pp)

A method and systems for improving recovery from a hydrocarbon reservoir are described. A method includes identifying an interval within the reservoir that comprises a reduced reservoir quality, wherein the interval includes hydrocarbons. A production chamber is formed in a reservoir interval below the interval of reduced reservoir quality, wherein the production chamber is in contact with the interval of reduced reservoir quality. Hydrocarbons are mobilized in the interval of reduced reservoir quality by contact with a mobilizing agent and a pressure is changed within the interval of reduced reservoir quality to allow hydrocarbon flow from the interval of reduced reservoir quality.

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1177742 TOE TO HEEL PROCESS -- RESERVOIR ENG & REC METHOD
FEASIBILITY OF APPLICATION OF IN SITU COMBUSTION USING THE THAI(TM) PROCESS IN THE LAGUNILLAS FIELD, VENEZUELA; L.Chavez, C.Ayasse, O.Albornoz and N.Hernandez (Petroleos Venezuela SA; Archon Technologies Ltd).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-137; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 16 pp)

New developments in air injection technology have been made using the THAI(TM) (toe-to-heel air injection) line drive process that creates unique operating conditions in the reservoir and that has special advantages for heavy oil recovery. This papers describes feasibility studies for block WW-6 of the Lagunillas Field based in reservoir simulation and 3-D cell THAI(TM) physical model tests.

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1177743 TRACER -- RESERVOIR ENG & REC METHOD
OPTIMIZING ENHANCED OIL RECOVERY BY THE USE OF OIL TRACERS; E.Sunde, M.R.Pavia, T.Ishoey and T.Torsivk, asrs. (Glori Energy Inc).. World 2013/154,945A1, p. 10/17/2013, f. 4/5/2013 (Appl. 1,335,480), pr. U.S. 4/13/2012 (Appl. 61/623,946) and U.S. 3/14/2013 (Appl. 827,639) (E21B-0047/11). (27 pp)

A method of optimizing recovery of oil from a formation includes injecting an oil tracer into an injection well in the formation and applying a tertiary oil recovery process for recovering the oil from the formation. A production well is monitored to detect the oil tracer in oil from the production wells within particular times. The method also includes modifying the tertiary oil recovery process based on the detection of the oil tracer in oil from the production well.

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1177744 URACOA FIELD -- RESERVOIR ENG & REC METHOD
FLUID CONTACTS AND NET PAY IDENTIFICATION IN THREE-PHASE RESERVOIRS; R.Perez, J.Cuesta, R.Altamar, M.Sanabria and J.Gil (PDVSA Petrodelta; Fusion Petroleum Technol).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-123; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 4 pp; Abstract only)

[For information only - meeting paper abstract]

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1177745 VISCOUS OIL RECOVERY -- RESERVOIR ENG & REC METHOD
A COMPARISON OF TWO THERMAL RECOVERY METHODS FOR HEAVY OIL RESERVOIRS: STEAM FLOOD AND ELECTRIC RESISTIVE HEATING; J.L.M.Barillas, H.J.M.Oliveira, M.A.F.Rodrigues, W.Mata and T.V.Dutra, Jr. (Rio Grande Norte Fed Univ).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-360b; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 8 pp)

This paper numerically evaluates both electric resistive heating and steam flooding for the recovery of viscous crude oil on Northeast Brazil oil properties. The electric resistive heating process passes an electrical current through the formation to increase reservoir temperature through the Joule effect. Each process was numerically simulated and optimized to obtain a maximum oil recovery with minimal steam and energy consumption. The results showed that both electrical resistive heating and steam flooding yielded high oil production rates only after a few years due to a delay in the oil bank displacement to the producer. Both processes can be profitable, depending on energy, steam and oil prices. Electrical resistive heating showed low water production (water-to-oil ratio) when compared to steamflooding.

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1177746 VISCOUS OIL RECOVERY -- RESERVOIR ENG & REC METHOD
COMPARISON OF STEAM-BASED PROCESSES FOR THE ORINOCO HEAVY OIL BELT; J.Ruiz, K.Gonzalez, J.L.Bashbush and J.Cova (Schlumberger).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-548; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 15 pp)

This paper presents a workflow for the comparison of thermal recovery methods of significant interest for the Orinoco Belt; steam-assisted gravity drainage (SAGD), horizontal alternating steam drive (HASD) and single well steam-assisted gravity drainage (SW-SAGD). This workflow can be used not only for the evaluation of these particular methods, but also for any other thermal enhanced oil recovery process. The workflow includes the following. (1) A technical screening of the methods. (2) The set-up of an economic evaluation model taking into account energy requirements, incremental oil production and production costs. (3) The assessment of the methods analyzing the effect of steam displacement and gravity segregation. (4) The optimization of each method using numerical simulation linked to an optimization routine which helps to evaluate the objective function (net present value) while varying the most influential parameters. (5) Finally, a comparison of each recovery method using the optimum response from each process for the analyzed reservoir conditions. The analysis is conducted for two typical sand thicknesses found in the Orinoco Belt, ranging from 20-60 ft for the medium-thick layer and 60-100 ft for the thick layers, in which thermal methods are more suitable.

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1177747 VISCOUS OIL RECOVERY -- RESERVOIR ENG & REC METHOD
RECOVERY FROM A HYDROCARBON RESERVOIR; G.R.Scott.. U.S. 2013/0,199,780A1, p. 8/8/2013, f. 12/19/2012 (Appl. 720,963), pr. Can. 2/6/2012 (Appl. 2,766,849) (E21B-0043/16; E21B-0043/24). (20 pp)

A method and systems for using a non-volatile solvent to recover heavy oils are provided. In a method a solvent that includes a non-volatile component is injected into the reservoir. A mobilizing fluid is injected into the reservoir. Fluid is produced from the reservoir, wherein the fluid comprises the solvent, the mobilizing fluid, and the hydrocarbons from the reservoir.

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1177748 VISCOUS OIL RECOVERY -- RESERVOIR ENG & REC METHOD
THERMAL RECOVERY OF HEAVY AND EXTRA-HEAVY OIL: CHALLENGES, RISKS AND OPPORTUNITIES IN THE COLOMBIAN LLANOS BASIN; D.Truempy and A.Garbowicz (Shell Venezuela SA; Shell Explor & Prod Co).. 10TH BOLIVARIAN PETROLEUM EXPLORATION IN SUBANDEAN BASINS SYMPOSIUM (Cartagena de Indias, Colombia, 7/26-29/2009) PROCEEDINGS 2009. (Available at http://www.simposiobolivariano.org as of 10/8/2010; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177749 WATERFLOODING -- RESERVOIR ENG & REC METHOD
ELECTROMAGNETIC-ASSISTED CARBONATED WATER FLOODING FOR HEAVY OIL RECOVERY; T.S.Tran, P.L.J.Zitha and E.De Rouffignac (Delft Univ Technol; Shell Int Explor & Prod).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-379; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 11 pp)

Carbonated water flooding (CWF) is an enhanced oil recovery method where an oil reservoir is flooded with water containing dissolved CO2. The CO2 is transferred from the water phase into the oil phase, leading to oil swelling and oil viscosity reduction. This method was proven by several field trials, but did not reach the status of a routine application. Low frequency electromagnetic (EM) heating was field tested in the 1960s. This paper investigated the potential of combining CWF with EM heating to enhance the recovery of heavy oil reservoirs. Several scenarios involving EM heating of the reservoir for several months prior to CWF were examined. Reservoir simulations showed that an appropriate selection of the EM heating strategy provided a well-distributed temperature increase in the reservoir. This led to a rather uniform decrease of oil viscosity over the reservoir. The combination of CWF and EM heating considerably increased oil production due to the synergistic effects of heating and CO2 transfer into the oil. Early response in oil production was found by an optimized CO2:water slug size and temperature.

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1177750 WATERFLOODING -- RESERVOIR ENG & REC METHOD
SIMULATION STUDY ON WATERFLOOD FRONT: BLOCK HADE OF TARIM OILFIELD IN NORTHWEST CHINA; W.Zhou, D.S.Ma and O.D.Orodu (PetroChina Research Inst; Covenant Univ).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166018; Available on CD-ROM; 11 pp)

Hade field consists of a deep thin sandstone reservoir in two layers, each about 1.5 m thick. A two layer &quote;staircase&quote; horizontal well is used for recovery. A tracer test was conducted to determine the waterflood front and edge water movement. However, the field tracer monitoring cycle is 150-360 days, preventing the efficient monitoring of the waterflood swept area and waterflood advance direction and velocity, after the cycle of tracer monitoring. Conservation of mass with respect to tracer flow and history performance matching of tracer enabled the study of the waterflood front and edge-water advance. The simulation result is consistent with the monitored field tracer results. Therefore, the numerical model can be used to conduct a longer monitoring period. It can make up for the disadvantage of the complexity of the tracer monitoring setup, its implementation, and time-consuming monitoring cycle. The waterflood front, swept area, advancing velocity and the predominant water injection direction can be obtained. It is also possible to evaluate and predict the injection-production well interaction. (Copyright 2013 SPE)

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1177751 WATERFLOODING -- RESERVOIR ENG & REC METHOD
INSIGHT INTO SMART-WATER RECOVERY MECHANISM THROUGH DETAILED HISTORY MATCHING OF COREFLOOD EXPERIMENTS; A.M.AlSofi and A.A.Yousef (Saudi Aramco).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166035; Available on CD-ROM; 12 pp)

A practical Smart-Water flooding (chemistry-optimized water in terms of salinity and ionic composition) simulation model should replicate laboratory and pilot scale observations. An ideal model, however, should also capture the recovery mechanism in play. In the literature, only the conventional residual oil reduction approach has been suggested and tested to upscale Smart-Water flood laboratory results. This provides a single view of the potential recovery mechanism. Other approaches can be equally successful in matching laboratory results and hence could provide additional understanding of the recovery mechanism in play. In this work, we use the laboratory results of two tertiary Smart-Water corefloods to investigate the various possibilities for modeling Smart-Water flooding, hence, the possible recovery mechanisms. The results of this work suggest that recovery enhancement through Smart-Water flooding is best explained based on changes to the curvature of the oil relative permeability curve (i.e., the Corey oil exponent). Incremental recoveries are realized not due to a reduction in the technical/absolute residual oil, but rather due to improvement in the oil flow capacity (i.e., oil-to-water relative permeability ratio). (Copyright 2013 SPE)

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1177752 WATERFLOODING -- RESERVOIR ENG & REC METHOD
MULTI-OBJECTIVES CONSTRAINED WATERFLOOD OPTIMIZATION IN TIGHT CARBONATES; H.Khan, L.Saputelli, G.A.Carvajal, P.Ranjan, F.Wang and S.Knabe (Halliburton).. SPE RESERVOIR CHARACTERISATION AND SIMULATION CONFERENCE [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) PROCEEDINGS 2013. (ISBN 978-1-61399-268-5; SPE-166051; Available on CD-ROM; 11 pp)

Production from low permeability carbonate reservoirs is commonly supported by the waterflood (WF) process. Despite decades of research and field experience, oil recovery expectations in carbonates typically remain low due to factors such as high permeability streaks, poor microscopic sweep efficiency, and low mobility ratios, all of which can dramatically impair oil recoveries. Vast amounts of remaining oil-in-place have led operators to analyze opportunities to improve WF management and production. This paper presents an approach to increase recovery and improve performance indicators in a low permeability carbonate reservoir. The main objective of this effort is to maximize short-term oil rates and long-term recovery while honoring target constraints on voidage-replacement ratio (VRR), reservoir pressure, sweep efficiencies, and production and injection rates. In essence, our approach seeks optimum WF solutions by coupling a full-field reservoir simulator with an adaptive, simulated annealing optimization engine. This paper describes how this optimization methodology provides improvements in short-term production rates of about 10-20% while enhancing oil recovery between 1-8%. (Copyright 2013 SPE)

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1177753 WELL MODEL -- RESERVOIR ENG & REC METHOD
FLEXIBLE WELLBORE MODEL COUPLED TO THERMAL RESERVOIR SIMULATOR; V.Oballa and L.Buchanan (Computer Modelling Grp Ltd).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-308; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 8 pp)

In the past decade, drilling techniques have become more sophisticated and allow more complex wellbore configurations. Consequently, simultaneous wellbore and reservoir simulation is important for many processes and necessary for some. This paper describes a wellbore model (flexible wellbore) that is solved independently but is fully coupled with a thermal reservoir simulator. The wellbore can contain up to three tubing strings in an annular space, and each flowing stream may be an injector or a producer operated at various conditions. There are no restrictions on tubing lengths or how the wellbore intersects the reservoir grid. The flow regime is a function of liquid and gas velocities for each flowing stream and is used to calculate frictional pressure drop as well as axial and radial heat transfer. The model also handles transient wellbore behavior which may be significant for cyclic processes. Also discussed is fluid segregation which is relevant in slanted and undulating wellbore.

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1177754 WELL MODEL -- RESERVOIR ENG & REC METHOD
SEMI-ANALYTICAL SOLUTIONS FOR A PARTIALLY PENETRATED WELL WITH WELLBORE STORAGE AND SKIN EFFECTS IN A DOUBLE-POROSITY SYSTEM WITH A GAS CAP; M.Dejam, H.Hassanzadeh and Z.Chen (Calgary Univ).. TRANSPORT IN POROUS MEDIA v.100, no.2, pp.159-192, Nov. 2013. (ISSN 1573-1634)

We have studied the effect of a constant top pressure on the pressure transient analysis of a partially penetrated well in an infinite-acting fractured reservoir with wellbore storage and skin factor effects. Semi-analytical solutions of a two-dimensional diffusivity equation have been obtained by using successive applications of the Laplace and modified finite Fourier sine transforms. Both pseudo-steady-state and transient exchanges between the matrix and the fractures have been considered. Solutions are presented that can be used to generate type curves for pressure transient analysis or can be used as a forward model in parameter estimation. The presented analysis has applications in well testing of fractured aquifers and naturally fractured oil reservoirs with a gas cap.

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1177755 WETTABILITY -- RESERVOIR ENG & REC METHOD
METHODS FOR DETERMINING WETTABILITY ALTERATION; M.Stukan and W.Abdallah, asrs. (Schlumberger Technol Corp).. U.S. 2013/0,152,668A1, p. 6/20/2013, f. 12/4/2012 (Appl. 693,944), pr. U.S. 12/14/2011 (Appl. 61/570,589) (G01N-0013/02). (16 pp)

A protocol for determining the effect of water composition on surface alteration is described using simple, less preparation-sensitive brine/oil and rock/brine/air systems when compared to conventional rock/brine/oil measurement methods. A model glass/brine/oil system is described and it is demonstrated that experimental measurements of contact angle obtained using a conventional approach agree well with the contact angles predicted using the proposed protocol. Core analysis procedures are described.

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PIPELINING, SHIP & STORAGE

table of contents list of publications

1177756 CORROSION CONTROL -- PIPELINING, SHIP & STORAGE
METHOD OF PREVENTING CORROSION OF OIL PIPELINES, STORAGE STRUCTURES AND PIPING; J.H.Gordon, asr. (Ceramatec Inc).. U.S. 2013/0,153,469A1, p. 6/20/2013, f. 2/19/2013 (Appl. 770,610), pr. U.S. 11/2/2009 (Appl. 61/257,369), U.S. 11/1/2010 (Appl. 916,984), U.S. 11/16/2011 (Appl. 61/560,563) and U.S. 11/16/2012 (Appl. 679,696) (C10G-0029/04). (13 pp)

Corrosion of ferrous material such as steel or stainless steel is a problem in oil pipelines, oil storage tanks, and the piping and process equipment at oil refineries, and this corrosion may be reduced by reducing the total acid number (TAN) value of the oil feedstock that is used/transported within the ferrous material. This TAN value may be reduced by reacting the oil feedstock with an alkali metal, thereby forming a de-acidified alkali metal. The de-acidified alkali metal has a TAN value of less than or equal to 1 mgKOH/g.

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1177757 FLEXIBLE PIPE -- PIPELINING, SHIP & STORAGE
FLEXIBLE PIPE BODY AND METHOD; G.Karabelas, A.Burton and G.S.Graham, asrs. (Wellstream Int Ltd).. Europe. 2,610,536A3, p. 8/28/2013, f. 6/26/2012 (Appl. 12,173,628), pr. Gr. Brit. 12/29/2011 (Appl. 1,122,438) (F16L-0011/08; F16L-0011/11; F16L-0011/15). (3 pp)

A flexible pipe body and method of manufacturing a flexible pipe body are disclosed. The pipe body includes a flexible pipe body, comprising a tubular layer for forming a collapse-resistant layer, the layer comprising corrugations, a radially inner surface and a radially outer surface, and each of the radially inner and radially outer surfaces having at least one groove provided therein, and at least one reinforcing element provided at least partially within the groove of at least one of the radially outer surface and the radially inner surface. The flexible pipe may be employed in underwater oil or gas transmission as well as a riser pipe.

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1177758 FLEXIBLE PIPE -- PIPELINING, SHIP & STORAGE
ASSEMBLY CONSISTING OF A FLEXIBLE TUBULAR PIPE FOR TRANSPORTING HYDROCARBON FLUIDS AND A SECONDARY METAL TUBE [ASSEMBLAGE D'UNE CONDUITE TUBULAIRE FLEXIBLE POUR LE TRANSPORT DE FLUIDES D'HYDROCARBURES AVEC UN TUBE METALLIQUE SECONDAIRE]; Y.Castel and A.Levet, asrs. (Technip France).. World 2013/149,983A1, p. 10/10/2013, f. 4/2/2013 (Appl. 1,356,860), pr. Fr. 4/4/2012 (Appl. 1,253,111) (F16L-0011/08; F16L-0025/70; F16L-0033/01; F16L-0033/26; F16L-0058/10; F16L-0037/14; F16L-0001/26; F16L-0033/24; F16L-0011/16; F16L-0033/30). (26 pp; In French)

The present invention relates to an assembly, which consists of a flexible tubular pipe for transporting hydrocarbon fluids including a metal casing produced by the short-pitch helical winding of a profiled strip, the strip defining a plurality of gaps between each winding turn, an inner polymeric sealing sheath, at least one metal reinforcing layer, and an outer polymeric sheath, and of a secondary metal tube coaxial to the tubular pipe.

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1177759 FLOWLINE -- PIPELINING, SHIP & STORAGE
POLYARYLENE SULFIDE FOR OIL AND GAS FLOWLINES; R.Luo and X.Zhao, asrs. (Ticona LLC).. World 2013/155,412A2, p. 10/17/2013, f. 4/12/2013 (Appl. 1,336,365), pr. U.S. 4/13/2012 (Appl. 61/623,618), U.S. 6/28/2012 (Appl. 61/665,423), U.S. 7/24/2012 (Appl. 61/675,002), U.S. 9/28/2012 (Appl. 61/707,355), U.S. 10/24/2012 (Appl. 61/717,922) and U.S. 3/14/2013 (Appl. 804,481) (F16L-0011/00). (80 pp)

Flowlines for use in oil and gas applications are described. The flowlines include a barrier layer that includes polyarylene sulfide composition that exhibits high strength and flexibility characteristics. Methods for forming the flowlines are also described. Formation methods include dynamic vulcanization of a polyarylene sulfide composition that includes an impact modifier dispersed throughout the polyarylene sulfide. A crosslinking agent is combined with the other components of the composition following dispersal of the impact modifier throughout the composition. The flowlines can include production fluid flowlines, supporting fluid flowlines, bundled flowlines, etc., and can be utilized as risers, pipelines, and jumpers.

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1177760 FLOWLINE -- PIPELINING, SHIP & STORAGE
[R] PIPE SECTION HAVING POLYARYLENE SULFIDE COMPOSITION BARRIER LAYER; M.A.Ruby, D.W.Eastep, R.Luo, X.Zhao, J.J.Grenci and C.McGrady, asrs. (Ticona LLC).. World 2013/155,517A2, p. 10/17/2013, f. 4/15/2013 (Appl. 1,336,579), pr. U.S. 4/13/2012 (Appl. 61/623,618), U.S. 6/28/2012 (Appl. 61/665,423), U.S. 8/1/2012 (Appl. 61/678,370), U.S. 9/20/2012 (Appl. 61/703,331), U.S. 9/28/2012 (Appl. 61/707,314), U.S. 10/24/2012 (Appl. 61/717,899) and U.S. 12/20/2012 (Appl. 61/739,926) (F16L-0011/00). (94 pp) SRPA# 1,177,759

[For abstract and indexing, see Abstract #1,177,759]

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1177761 LINE PIPE -- PIPELINING, SHIP & STORAGE
METHOD FOR QUENCHING STEEL PIPE AND METHOD FOR PRODUCING STEEL PIPE USING THE SAME; M.Seo, asr. (Nippon & Sumitomo Corp).. U.S. 2013/0,160,903A1, p. 6/27/2013, f. 8/26/2011 (Appl. 819,842), pr. Japan 9/2/2010 (Appl. 2010-196,549) and World 8/26/2011 (Appl. 1,104,758) (C21D-0009/08). (13 pp)

In quenching, a heated steel pipe is immersed in a water bath parallel with the water surface for cooling the pipe's outer surface, and cooling water is injected from an axial center nozzle into one end of the pipe for cooling the pipe's inner surface, thereby rapidly cooling the entire pipe surface. A reduction of strength difference along a length of the quenched pipe becomes possible by moving the nozzle following the motion of the pipe axis, and injecting the water from the nozzle for the water to reach the other pipe end at the time of the immersion of the entire circumference of the pipe's outer surface. An opening preferably faces the nozzle to remove the water, and the flow velocity is preferably set to 23 m/sec or more for better water flow inside the pipe.

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1177762 OFFSHORE TERMINAL -- PIPELINING, SHIP & STORAGE
SYSTEM FOR HANDLING A TRANSFER DEVICE; G.Evensen, asr. (Framo Engineering A/S).. U.S. 2013/0,157,535A1, p. 6/20/2013, f. 2/2/2011 (Appl. 574,619), pr. Norw. 2/2/2010 (Appl. 20,100,159) and World 2/2/2011 (Appl. 1,100,040) (B63B-0022/02). (14 pp)

A system for handling a transfer device for transferring load from a storage facility, subsea or integrated in the production facility, to a vessel on the sea surface. The system comprises (1) a pickup line comprising a first end connected to the transfer device and a second end available at the sea surface; (2) a connection device for connection of the transfer device to the tension buoy; (3) a swiveling device for rotation of the connection device in relation to the tension buoy; and (4) a position-limiting device fixed to the connection device, for limiting the position of the pickup line in relation to the tension buoy. A offshore terminal is described for transferring oil and gas fluids to a tanker from an underwater storage facility.

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1177763 OFFSHORE TERMINAL -- PIPELINING, SHIP & STORAGE
FLOATING OCEANIC TERMINAL, OR SOFT TERMINAL, WITH ENVIRONMENTAL CONDITIONS ATTENUATING SYSTEM [TERMINAL OCEANICO FLUTUANTE COM SISTEMA DE ATENUACAO DE CONDICOES AMBIENTAIS - SOFT]; P.Sauvage and G.Lavignolle, asrs. (DORIS Engineering Ltd).. World 2013/149,312A1, p. 10/10/2013, f. 4/5/2012 (Appl. 1,200,096) (B63B-0035/44). (26 pp; Also assigned to P.Sauvage and G.Lavignolle; In Portuguese)

The floating oceanic terminal, or SOFT (skirt offshore floating terminal), with a system for attenuating environmental conditions, is directed to support exploration and production operations in offshore zones, and is strategically positioned in the vicinity of platforms. The SOFT terminal is designed for the installation, on the structure thereof, of elements connected to offshore exploration, such as heliports, housing, refueling points, control and observation towers, etc. The SOFT terminal structure comprises a system for attenuating environmental conditions that comprises, in a main configuration, two recesses at the ends of the hull for mooring vessels, and side skirts along the lower part of the outer sides of the hull. The recesses, together with the side skirts, dampen waves, winds and currents, increasing structural stability and ensuring uninterrupted activity on the terminal even under severe environmental conditions. Platforms for embarking/disembarking passengers and/or for loading/unloading cargo are located inside the recesses, and protection elements and pneumatic protection defenses are arranged along the platforms. The anchoring system of the SOFT terminal comprises an arrangement known as spread mooring system.

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1177764 PARAFFIN DEPOSITION -- PIPELINING, SHIP & STORAGE
AN EXPERIMENTAL DESIGN APPROACH FOR INVESTIGATING THE EFFECTS OF OPERATING FACTORS ON THE WAX DEPOSITION IN PIPELINES; R.Valinejad and A.R.S.Nazar (Isfahan Univ).. FUEL v.106, pp.843-850, April 2013. (ISSN 0016-2361)

An experimental study is conducted to determine the wax deposition potential of three waxy crude oils during laminar flow in a pipeline system. The Taguchi experimental design approach is used to evaluate the influence of important operating factors such as inlet crude oil temperature, temperature difference between the oil and the pipe wall (ΔT), the flow rate of crude oil, wax content and time on wax deposition phenomena. It is found that the parameter ΔT and flow rate have maximum and minimum percentage of contribution on the amount of deposited wax, respectively. The results demonstrate that a waxy crude oil with higher wax content could lead the more deposited solid wax in transportation lines. The differential scanning calorimetry (DSC) analysis showed that wax appearance temperature (WAT) and solid content of the deposit were increased as deposition time increased. (c2012 Elsevier Ltd.)

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1177765 PIPELINE LEAK -- PIPELINING, SHIP & STORAGE
MODIFIED MATERIAL BALANCE LEAK DETECTION METHOD FOR OIL PIPELINES; F.S.Zverev (Gubkin Russian State Univ).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.92-94, March 2009. (ISSN 0028-2448; 3 refs; In Russian)

Modified pipeline leak detection method of material balance is considered. Method difference from others is reliable performance under such stationery and transient conditions.

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1177766 RECIPROCATING COMPRESSOR -- PIPELINING, SHIP & STORAGE
MAINTENANCE TOOL AND METHOD FOR A SPLIT FRICTION BEARING ASSEMBLY AND ROTARY MACHINE USING THE SAME; T.Breschi, M.Bargiacchi, L.Raugei and M.Bogazzi, asrs. (Nuovo Pignone SRL).. World 2013/150,017A1, p. 10/10/2013, f. 4/2/2013 (Appl. 1,356,917), pr. Italy 4/4/2012 (Appl. 120,013) (B25B-0027/06; F16C-0035/02; F16C-0009/02). (32 pp)

The tool is designed to carry out maintenance operations on a bearing assembly comprising a bushing split into at least two shells; the maintenance tool comprises a device arranged to act on and rotate the bushing shells. In particular, the device comprises a slide and a pin; the slide has a hole transversal to its sliding direction and the pin is slidably mounted inside the hole and protrudes from the hole. In a first operating position, the pin acts on a shell and in a second operating position, the pin does not act on any shell. The method provides rotating the bushing shells without rotating the supported shaft, and carrying out maintenance operations on a shell at a time while leaving the shaft supported by the other shell.

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1177767 REGASIFICATION -- PIPELINING, SHIP & STORAGE
POWER AND REGASIFICATION SYSTEM FOR LNG; N.Amir and D.MacHlev, asrs. (Ormat Technologies Inc).. U.S. 2013/0,160,486A1, p. 6/27/2013, f. 12/22/2011 (Appl. 335,176) (F25J-0001/00). (36 pp)

The present invention provides a power and regasification system based on liquefied natural gas (LNG), comprising (1) a vaporizer by which liquid motive fluid is vaporized, the liquid motive fluid being LNG or a motive fluid liquefied by means of LNG; (2) a turbine for expanding the vaporized motive fluid and producing power; (3) heat exchanger means to which expanded motive fluid vapor is supplied, the heat exchanger means also being supplied with LNG for receiving heat from the expanded fluid vapor, whereby the temperature of the LNG increases as it flows through the heat exchanger means; (4) a conduit through which the motive fluid is supplied from at least the outlet of the heat exchanger to the inlet of the heat exchanger; and (5) a line for transmitting regasified LNG.

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1177768 TANKER -- PIPELINING, SHIP & STORAGE
METHOD FOR PROTECTING A VESSEL'S SIDE PLATING, AS WELL AS VESSEL FOR CARRYING COLD LIQUID SUBSTANCES; R.A.Suojanen and A.Sipila, asrs. (Aker Arctic Technology Oy).. World 2013/150,181A2, p. 10/10/2013, f. 3/28/2013 (Appl. 1,350,348), pr. Fin. 4/2/2012 (Appl. 20,125,375) (B63B-0003/00). (14 pp)

A method for protecting a vessel's side plating is disclosed, the vessel being used for carrying a cold liquid substance, in which method the side plating of a vessel is protected in a connection area for vessel piping manifolds and port piping manifolds, used in the transfer of a cold liquid substance, by means of a material layer which protects the vessel's side plating, which is mounted either fixedly or removably on the vessel's structure, and which is constructed of a solid material. The invention relates also to such a vessel.

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1177769 WELDED PIPE -- PIPELINING, SHIP & STORAGE
EQUIPMENT FOR USE IN CORROSIVE ENVIRONMENTS AND METHODS FOR FORMING THEREOF; G.J.Kusinski, E.H.Niccolls and D.L.Cooke.. U.S. 2013/0,202,908A1, p. 8/8/2013, f. 2/8/2013 (Appl. 763,238), pr. U.S. 2/8/2012 (Appl. 61/596,711) (F16L-0009/02; B23P-0015/00). (8 pp)

Corrosion resistant structural equipment, e.g., steel pipe, for use in CO2-containing environments having a corrosion rate of less than 40 mpy upon exposure to formation water and under CO2 partial pressure of 0.5 MPa at a temperature of 40°C. The pipe complies with prevailing industry standards with respect to design, fabrication, inspection and testing, metallurgical and mechanical properties. The pipe is fabricated out of a carbon steel material with a Si content of 0.5 to 3.5% for CO2 corrosion protection. In one embodiment, the material is carbon steel with a carbon equivalent (CE) of less than 0.63, requiring no post-weld heat treatment (PWHT). In another embodiment, the CE is less than 0.45, requiring neither preheat treatment nor PWHT.

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ALT FUELS & ENERGY SOURCES

table of contents list of publications

1177770 TAR SAND OIL RECOVERY -- ALT FUELS & ENERGY SOURCES
BITUMEN RECOVERY AND SURFACTANT DISTRIBUTION IN OIL SANDS PROCESS STREAMS; R.J.Mikula, V.A.Munoz, G.R.D.Elliott and M.Afara (Natural Resources Canada; CanmetENERGY).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-371; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 10 pp)

Bitumen from surface-mined oil sands has a propensity for emulsion formation that impacts desalter performance and chloride loading to the refinery. The microscopic morphology of the bitumen correlates strongly with the presence of surfactants in the bitumen. Bitumen surfactant concentration is highest in the tailings bitumen compared to secondary recovery, compared to primary recovery. The resulting emulsion stability makes froth treatment processing difficult and can increase chloride loading to the refinery, via the increase in emulsified water content in the diluted bitumen product. This paper discusses the bitumen mapping or surfactant distribution throughout the extraction process and the implications for froth treatment and bitumen recovery from tailings streams. The unique microscopy based characterization methods introduced here promise to enhance our understanding of a variety of bitumen production issues in surface mined oil sands.

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BUSINESS & ECONOMICS

table of contents list of publications

1177771 UNCONVENTIONAL OIL RECOVRY -- BUSINESS & ECONOMICS
ABOUT A ROLE OF HIGH-VISCOSITY OILS AND BITUMENS AS A SOURCE OF HYDROCARBONS IN THE FUTURE; A.R.Garushev (Rosneft NK-NTC LLC).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.65-67, March 2009. (ISSN 0028-2448; 8 refs; In Russian)

A number of negative factors, which should be considered for stable development of oil sector, is noted. The importance of a role of nonconventional oils (high-viscosity ones and bitumens) for the satisfaction of world need for oil in the future is underlined.

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HEALTH, SAFETY & ENVIRON

table of contents list of publications

1177772 ABOVEGROUND STOR FACILITY -- HEALTH, SAFETY & ENVIRON
ABOVE GROUND FLUID STORAGE SYSTEM; G.D.Mann, J.P.Mason, D.E.Deavers, Jr., J.M.Ruggero, Jr. and R.F.Gatta.. U.S. 2013/0,200,079A1, p. 8/8/2013, f. 2/3/2012 (Appl. 365,924) (B65D-0090/02; E02D-0019/04; B23P-0011/00). (21 pp)

An aboveground liquid storage system includes a substantially impermeable liner bounding an interior for receiving a liquid. A plurality of supporting structures and a base support the liner and the liquid when the liquid is received in the interior. The liner extends from the base over a top end of the plurality of supporting structures and descends to the ground to form a cavity under the plurality of supporting structures. A first supporting structure of the plurality of supporting structures includes a leg member supporting the liner and a support member connected to the leg member and holding the leg member upright. At least one of the leg member and the support member includes a releasably attachable extension portion to allow separation of the extension portion from a remainder of at least of the leg member and support member. The storage system has application to water storage for hydraulic fracturing operations or environmental impoundment during pipeline installation crossing a waterway or remediation of wetlands.

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1177773 CARBON DIOXIDE -- HEALTH, SAFETY & ENVIRON
QUANTIFYING THE ROLE OF MICROORGANISMS IN SILICATE MINERAL DISSOLUTION AT THE CONDITIONS OF CO2 STORAGE IN BASALTS; O.Pokrovsky, L.Shirokova, G.Stockman, S.Zabelina, P.Benezeth, E.Gerard, B.Menez and H.Alfredsson (Toulouse Univ; Russian Academy Sciences).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-13904; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177774 CARBON DIOXIDE -- HEALTH, SAFETY & ENVIRON
GEOCHEMICAL AND MICROBIAL MONITORING DURING CO2 STORAGE IN DEEP SUBSURFACE SALINE AQUIFERS IN KETZIN PILOT SITE, GERMANY; H.Wuerdemann, D.Morozova, M.Wandrey and M.Zettlitzer (GeoForschungsZentr Potsdam; RWE Dea AG).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-13910; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 2 pp; Abstract only)

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1177775 CARBON DIOXIDE -- HEALTH, SAFETY & ENVIRON
CO2CARE: CO2 SITE CLOSURE ASSESSMENT RESEARCH; M.Kuhn, M.Wipki, S.Durucan, J.P.Deflandre, A.Kronimus, A.Chadwick and S.Persoglia (GFZ German Research Ctr; Imperial Coll, London; Inst Francais du Petrole).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-13955; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177776 CARBON DIOXIDE -- HEALTH, SAFETY & ENVIRON
EXPERIMENTAL MODELS OF CO2 LEAKAGE FROM SUBSURFACE AQUIFERS; R.Berkowitz and A.W.Woods (Cambridge Univ).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14002; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177777 CARBON DIOXIDE -- HEALTH, SAFETY & ENVIRON
MICROBIAL INDUCED CHANGES OF MINERAL COMPOSITION IN A CO2 STORAGE SITE, KETZIN, GERMANY; M.Kasina, P.Meister, M.Wandrey and H.Wurdemann (Helmholtz Centre Potsdam; Max Planck Inst).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14089; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177778 CARBON DIOXIDE INJECTION -- HEALTH, SAFETY & ENVIRON
A PARAMETRIC STUDY OF COAL MASS AND CAP ROCK BEHAVIOUR AND CARBON DIOXIDE FLOW DURING AND AFTER CARBON DIOXIDE INJECTION; M.S.A.Perera, P.G.Ranjith, S.K.Choi and A.Bouazza (Monash Univ; CSIRO).. FUEL v.106, pp.129-138, April 2013. (ISSN 0016-2361)

In recent years, scientists have focused on processes which can be used to reduce greenhouse gas emissions, and CO2 sequestration in deep coal seams and saline aquifers has been identified as a potential method. However, there is a fundamental lack of understanding concerning the flow and mechanical phenomena that occur when CO2 is injected into coal seams. The main objective of this parametric study is to model the effect of CO2 injection pressure on cap rock deformation and investigate the possibility of leakage or back-migration of CO2 to the atmosphere through the cap rock. The COMSOL Multiphysics numerical simulator was used to investigate the effect of CO2 injection on coal and other adjacent rock strata. For the purpose of the model, a 200 m long and 5 m thick coal seam was assumed to be lying below a 200 m long and 3 m thick cap rock layer 1000 m below the surface. According to the model’s results, the cap rock deforms considerably just after injection in an upward direction due to the CO2 movement. ... (c2012 Elsevier Ltd.) (Longer abstract available)

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1177779 CARBON DIOXIDE REMOVAL -- HEALTH, SAFETY & ENVIRON
METHOD AND SYSTEM FOR ACIDIC GAS CAPTURE AND STORAGE USING A SUBTERRANEAN FORMATION COMPRISING BRINE; H.S.Andersen, asr. (Statoil Petroleum AS).. World 2013/144,178A1, p. 10/3/2013, f. 3/27/2013 (Appl. 1,356,462), pr. Gr. Brit. 3/29/2012 (Appl. 1,205,529) (B01D-0053/14). (34 pp)

The present invention provides a method for capturing and storing an acidic gas (e.g., CO2) from a gas comprising (1) contacting the gas with brine to produce an acidic gas-rich brine and an acidic gas-depleted gas; and (2) pumping the acidic gas-rich brine into a subterranean formation for storage, wherein at least some of the brine used in step 1 derives from the subterranean formation into which the acidic-gas rich brine is pumped in step 2.

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1177780 CONCRETE -- HEALTH, SAFETY & ENVIRON
WOOD-CONTAINING CONCRETE COMPOSITION; P.K.Van Bakel and Y.R.Tyagi, asrs. (MGX Octrooi BV).. World 2013/151,427A1, p. 10/10/2013, f. 3/28/2013 (Appl. 1,350,230), pr. Neth. 4/2/2012 (Appl. 2,008,581) and Neth. 10/10/2012 (Appl. 2,009,604) (C04B-0018/26; C04B-0040/00; C04B-0028/04). (24 pp)

The present invention relates to construction materials and especially to a wood-containing concrete composition. The invention further relates to a method to produce a concrete material, which is particularly suitable as a construction material. The invention also relates to the use of wood and preferably of waste wood in construction materials. The construction material of the invention is considerably lighter than conventional concrete. Additionally, the invention provides an environmentally friendly method to utilise waste wood and to immobilise the pollutants present in the waste wood. In a preferred embodiment, oil sludges can be contacted with the wood particles and be used in the preparation of, e.g., construction materials and as an alternative method of its disposal to the landfills.

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1177781 CONTAINER -- HEALTH, SAFETY & ENVIRON
SYSTEM AND APPARATUS FOR EVACUATION OF CONTAMINATED FLUIDS FROM FLEXIBLE HULLED VESSELS; T.P.Aberle.. U.S. 2013/0,146,152A1, p. 6/13/2013, f. 9/21/2012 (Appl. 624,630), pr. U.S. 12/7/2011 (Appl. 61/568,036) and U.S. 7/13/2012 (Appl. 61/671,534) (F16L-0003/00). (16 pp)

A system for collection, containment, and disposal of contaminated fluids includes a flexible hulled containment vessel having at least one resilient deformable wall and a flow-directing apparatus with a body that extends into the containment vessel during use, and an exterior portal that extends from the containment vessel in use. The flow-directing apparatus provides fluid communication from an interior of the containment vessel while resisting collapse of the deformable wall during removal of contaminated fluid therefrom. A body of the flow-directing apparatus includes sidewall apertures spaced along a length thereof, sized to accommodate solids expected to be in the contaminated fluids. Bridge structures help resist collapse. A diameter of the body may be larger than a diameter of the exterior portal, which may further resist collapse. The containment vessel may be foldable for transport or storage. The system may be used for waste disposal at an oil or gas well site.

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1177782 CONTAINMENT -- HEALTH, SAFETY & ENVIRON
LOAD BOX FOR STORAGE TANK CONTAINMENT; J.S.King.. U.S. 2013/0,160,860A1, p. 6/27/2013, f. 11/26/2012 (Appl. 685,275), pr. Can. 12/21/2011 (Appl. 2,762,535) (B63B-0017/00). (7 pp)

A load box for containing liquid spillage has a container with an upper access opening with a cover, attachable to a wall of a containment structure containing a liquid storage tank. An input opening is configured to receive a discharge end of a tank conduit, and an output opening is configured to receive a suction end of a transport conduit. The container encloses a releasable connection between the suction end of the transport conduit and the discharge end of the tank conduit. An overflow conduit attached to the overflow opening is configured such that when a liquid level in the container rises to the overflow opening, liquid flows through the overflow conduit into the structure interior. The apparatus has application to well site crude oil storage tanks and contains liquids that might leak from connections made when removing liquids from storage tanks.

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1177783 DISPOSAL WELL -- HEALTH, SAFETY & ENVIRON
ACHIEVING ZERO DISCHARGE E&P OPERATIONS USING DEEP WELL DISPOSAL; E.Marika, F.Uriansrud, R.Bilak and M.B.Dusseault (Terralog Technologies Inc; StatoilHydro ASA; Waterloo Univ).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-350; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 19 pp)

Many innovations in the past five years have significantly improved the applicability, flexibility, and economics of deep well disposal processes for disposal of waste streams from exploration and production (E&P) operations. Deep well disposal processes such as slurry fracture injection (SFI(TM)) and cuttings re-injection (CRI) have proven to be economically viable for heavy oil production operations and offshore drilling operations. When properly implemented, these technologies allow E&P operations to achieve zero discharge for many waste streams that may impact the environment. To maximize zero discharge benefits, the deep well disposal process is fully integrated into the drilling and production operations that generate the waste streams. This integration has operational challenges that can be successfully met by the use of best practices for geological evaluation, well design, injection strategy design, process control and monitoring, data acquisition, risk assessment and technical support. This paper will discuss the use of deep well disposal processes for zero discharge E&P operations, best practices, integrating the SFI process into E&P operations. Two field cases that have fully integrated the SFI and CRI processes into E&P operations, including a heavy oil project, will be reviewed.

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1177784 ENERGY POLICY -- HEALTH, SAFETY & ENVIRON
NORMATIVE REGULATION OF PROBLEMS OF NEGATIVE INFLUENCE ON WATER BIORESOURCES OF DEVELOPMENT OF CONTINENTAL SHELF HYDROCARBON FIELDS; S.A.Gromykin (RN Shelf Far East LLC).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.72-74, March 2009. (ISSN 0028-2448; In Russian)

The basic changes in normative regulation of influence on water bioresources are considered. It is noted that vexing questions of the coordination of design and application materials have been regulated as a result of reorganization of federal bodies and acceptance of some normative documents in 2008. The basic problems, demanding to be solved in the near future, are selected.

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1177785 FILTER -- HEALTH, SAFETY & ENVIRON
SILICONE-BASED CHEMICAL FILTER AND SILICONE-BASED CHEMICAL BATH FOR REMOVING SULFUR CONTAMINANTS; D.J.Boday, J.Kuczynski, R.E.Meyer III and T.J.Tofil, asrs. (IBM Corp).. U.S. 2013/0,192,739A1, p. 8/1/2013, f. 3/13/2013 (Appl. 802,543), pr. U.S. 1/21/2011 (Appl. 10,995) (B01D-0039/16). (16 pp)

Sulfur contaminants, such as elemental sulfur (S8), hydrogen sulfide and other sulfur components in fluids (e.g., air, natural gas, and other gases, as well as water and other liquids) are removed using a silicone-based chemical filter/bath. In one embodiment, a silicone-based chemical filter includes a membrane having a cross-linked silicone that is a reaction product of an olefin and a polyhydrosiloxane. For example, sulfur contaminants in air may be removed by passing the air through the membrane before the air enters a data center or other facility housing computer systems. In another embodiment, a silicone-based chemical bath includes a housing having an inlet port, an outlet port, and a chamber containing a silicone oil. For example, sulfur contaminants in air may be removed by passing the air through the silicone oil in the chamber before the air enters a data center or other facility housing computer systems.

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1177786 FIRE FIGHTING -- HEALTH, SAFETY & ENVIRON
AERIAL FIRE SUPPRESSION SYSTEM; M.D.Zimmerman and D.M.Kruithoff, asrs. (Simplex Manufacturing Co).. U.S. 2013/0,199,806A1, p. 8/8/2013, f. 1/25/2013 (Appl. 750,623), pr. U.S. 1/27/2012 (Appl. 61/591,791) (A62C-0003/02). (40 pp)

A fire suppression apparatus for fighting fires from a vehicle configured for flight is disclosed, comprising (1) a foam and water held in separate containers aboard the vehicle that when mixed forms a fire retardant; (2) a pump driven by an electric motor to pressurize the fire retardant, the pump including an air induction valve where air is drawn into a suction end of the pump and pressurized together with the fire retardant; and (3) an aimable boom connected to the pump by a conduit, the boom including a nozzle on a distal end of the boom from which the pressurized fire retardant and air is dispensed toward a target. The apparatus may be employed in oil spill remediation.

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1177787 FLUID VELOCITY -- HEALTH, SAFETY & ENVIRON
METHODS, SYSTEMS, AND APPARATUSES FOR MEASURING FLUID VELOCITY; A.Contorer.. U.S. 2013/0,158,749A1, p. 6/20/2013, f. 12/14/2011 (Appl. 325,835) (G05D-0001/00; G06F-0019/00; G01M-0017/00). (14 pp)

Methods, systems, and apparatuses are disclosed for a measuring the velocity of a fluid. The method and systems may be employed where an offshore oil spill occurs.

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1177788 GAS DIFFUSION -- HEALTH, SAFETY & ENVIRON
SYSTEMS AND METHODS FOR DIFFUSING GAS INTO A LIQUID; J.H.Schneider and J.M.Schneider.. U.S. 2013/0,163,372A1, p. 6/27/2013, f. 11/15/2012 (Appl. 678,444), pr. Can. 1/31/2007 (Appl. 2,534,704), World 1/31/2007 (Appl. 0,700,160), U.S. 7/29/2008 (Appl. 162,603) and U.S. 9/14/2012 (Appl. 620,069) (B01F-0003/04). (11 pp)

Systems and methods for diffusing gas into a liquid are disclosed. In some cases, the methods include tangentially introducing a liquid into a cylindrical chamber having a cylindrical inner wall such that the liquid develops a spiral flow. In some cases, gas bubbles are orthogonally introduced into the liquid as the liquid flows through the chamber. In some cases, a flow of the liquid and the gas bubbles is controlled such that a ratio of a liquid flow rate to a gas bubble flow rate does not exceed values which convert non-bacteria enriched, clear water into froth. In such cases, a mixture of the liquid and the gas bubbles exit the chamber near an output end. While the liquid can include clear water, in some instances, the liquid also includes bacteria (e.g., surfactant-producing or non-surfactant-producing bacteria) and/or bacterial nutrients that allow for improved bioremediation. The systems and methods may be employed in removing volatile organic compounds or oil spill hydrocarbons from water.

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1177789 GELATION -- HEALTH, SAFETY & ENVIRON
PHASE SELECTIVE GELATION WITH ALKYLATED AROMATIC ACID COMPOUNDS; D.A.Makeiff and R.Carlini, asrs. (Natl Res Council (Canada); Xerox Corp).. U.S. 2013/0,153,508A1, p. 6/20/2013, f. 12/15/2011 (Appl. 327,664) (C02F-0001/40; C02F-0001/52). (13 pp)

Disclosed is a process which comprises mixing an alkylated aromatic acid with a mixture comprising a first liquid and a second liquid, thereby causing formation of an organogel comprising the alkylated aromatic acid and the first liquid. The process is used for separating oil and water mixtures and recovering a desired or undesired phase from the mixture of two immiscible liquid phases, such as an oil spill in water.

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1177790 GEOLOGIC SEQUESTRATION -- HEALTH, SAFETY & ENVIRON
ALGORITHM FOR DETERMINING OPTIMUM SEQUESTRATION DEPTH OF CO2 TRAPPED BY RESIDUAL GAS AND SOLUBILITY TRAPPING MECHANISMS IN A DEEP SALINE FORMATION; C.K.Lin (Industrial Tech Res Inst).. GEOFLUIDS v.8, no.4, pp.333-343, Nov. 2008. (ISSN 1468-8123)

An algorithm is proposed here for determining the optimum sequestration depth (in terms of depth corresponding to maximum net income per unit rock volume) in a saline formation for CO2 trapped by residual gas and solubility trapping mechanisms. The Peng–Robinson equation of state was used to determine the density and fugacity of sequestered CO2 and the compression energy required for CO2 injection. Geochemist’s Workbench(R), a commercial geochemical software package, was used to estimate CO2 solubility in groundwater. Operational costs and CO2 emissions due to compression energy consumption were estimated. A hypothetical reference case was constructed to illustrate the proposed algorithm, assuming constant values of geothermal gradient, hydrostatic pressure gradient, sweep efficiency and initial groundwater chemistry, with a depth-dependent porosity and porosity-dependent saturation of residual gas. In general, the algorithm was illustrated successfully for the hypothetical reference case and produced the following results. The depth corresponding to maximum trapping capacity was approximately 3,000 m, but the depth representing maximum net income was approximately 1,300 m. Both the trapping capacity and net income of CO2 sequestration decreased with geothermal gradient, but the corresponding optimum depths increased with geothermal gradient.

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1177791 GEOLOGIC SEQUESTRATION -- HEALTH, SAFETY & ENVIRON
PROGRESS IN CO2 STORAGE ASSURANCE RESEARCH, DEVELOPMENT AND DEPLOYMENT; S.Imbus, K.Dodds, M.Brignoli, R.Dino, C.Otto and G.Duncan.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

The future of CO2 capture and storage as a greenhouse gas mitigation technology hinges both on the economic feasibility of the process and public acceptance of CO2 storage. Whereas economics may be improved via utilization for enhanced hydrocarbon recovery, containment security will be achieved through rigorous site assessment and monitoring. The CO2 Capture Project (CCP), a consortium of six integrated oil and gas companies, has addressed these issues along the lines of well integrity, subsurface processes, monitoring and contingency planning since 2000. CCP's well integrity study illustrated the importance of well cement placement as opposed to cement formulation and that geomechanical stress field changes associated with prior well operations are prerequisite to chemical degradation of well materials. Subsurface processes at the reservoir/seal system to pore scale are critical to understanding CO2 storage capacity, trapping rate and physicochemical interactions that could impact fluid flow and containment of CO2 and displaced brine. CCP's experimental results appear to challenge current assumptions about residual trapping of CO2 and reliance on capillary entry pressure determinations to assess top seal containment. (Original not available from T.U.)

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1177792 GEOLOGIC SEQUESTRATION -- HEALTH, SAFETY & ENVIRON
pH EFFECT OF Fe OXIDATION DURING ABIOTIC AND MICROBIALLY MEDIATED SILICATE WEATHERING: IMPLICATIONS FOR CO2 SEQUESTRATION IN SUBSURFACE STORAGE SITES; E.Y.Li, P.Meister and T.G.Ferdelman (Lomonosov Moscow St Univ; Max Planck Inst).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14028-2; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

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1177793 GEOLOGIC SEQUESTRATION -- HEALTH, SAFETY & ENVIRON
SEMI-ANALYTICAL SOLUTION FOR BRINE LEAKAGE THROUGH PASSIVE ABANDONED WELLS TAKING ACCOUNT OF BRINE DENSITY DIFFERENCES; A.Reveillere (Bureau Rech Geol Min (Fr)).. TRANSPORT IN POROUS MEDIA v.100, no.2, pp.337-361, Nov. 2013. (ISSN 1573-1634)

Both CO2 storage and disposal of waste fluid (e.g., co-produced brine) in deep saline aquifers create large scale over-pressurization and tend to displace brine upwards if a vertical connection (e.g., an abandoned well) is present. This article presents and explains an innovative semi-analytical solution to this problem of leakage between two aquifers connected by a passive well (represented by a porous column and/or an open wellbore) taking account of the effect of the density difference between lifting and lifted brines during both upward and downward flow. It is based on the linearization of brine density profiles against depth and on two improvements made to the approximate evaluation of convolution products introduced in Nordbotten et al. for calculation of the pressurization induced by transient flows in open aquifers. The comparison with numerical simulations shows good agreement of results. Since the solution uses time discretization but no spatial grid, computation time is reduced by 3–4 orders of magnitude compared to numerical resolution. It does, however, require considering homogeneous aquifers of constant thickness and brine properties.

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1177794 IMBIBITION -- HEALTH, SAFETY & ENVIRON
IMBIBITION: THE MECHANISM BY WHICH GAS SHALE SEQUESTERS RESIDUAL TREATMENT WATER; T.Engelder.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

Production of gas from shale by horizontal drilling and massive slickwater hydraulic fracturing offers a suite of benefits including environmental while prompting other environmental concerns. Concerns involving water quality arise because a large volume of water-based fluid with additives (i.e., treatment water) is injected into gas shale to open fractures in the vicinity of each horizontal well. Less than half of the treatment water with its natural components is recovered as flowback or later production brine. While recovered treatment water is safely managed at the surface, the water left in place, called residual treatment water (RTW), slips beyond the control of engineers. Some recent papers imply that gas shale like the Marcellus is leaking now, naturally without any human assistance, and that if water-based fluid is injected into these cross-formational pathways, that leakage, which is already contaminating the aquifers with salt, could be made much worse. Gas shale in general imbibes RTW at such a rate that it is unlikely to migrate out of the formation. If imbibed pervasively in the stimulated reservoir volume, the RTW could be absorbed by a porosity of roughly 0.06%. (Original not available from T.U.)

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1177795 MUD RECLAMATION -- HEALTH, SAFETY & ENVIRON
LIQUID RECLAMATION SYSTEMS AND METHODS; M.T.O'Konek, D.C.O'Konek, Jr. and D.C.O'Konek, Sr., asrs. (O3 Industries LLC).. U.S. 2013/0,200,007A1, p. 8/8/2013, f. 3/15/2013 (Appl. 833,806), pr. U.S. 8/18/2011 (Appl. 61/525,042) and U.S. 8/17/2012 (Appl. 588,459) (C02F-0009/00). (18 pp)

A liquid recovery system and methods of recycling water from liquid-solid mixture such as slurry produced by pavement-grinding machines, drilling fluid containing cuttings, and septage. The system includes (1) a storage tank or a settling tank; (2) a centrifuge in flow communication with the storage tank or settling tank, such as a hydraulic centrifuge; (3) a solids storage component; and (4) a cleaned-liquid storage tank in flow communication with the centrifuge. The system may also include a porous conveyor belt for removal of large solids from the mixture prior to centrifugation and may also include one or more blowers directed at the porous conveyor.

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1177796 OIL SPILL -- HEALTH, SAFETY & ENVIRON
COATED KAPOK FIBER FOR REMOVAL OF SPILLED OIL; J.Wang, Y.Zheng and A.Wang (Lanzhou Inst Chem Physics).. MARINE POLLUTION BULLETIN v.69, nos.1-2, pp.91-96, 4/15/2013. (ISSN 0025-326X)

Based on raw kapok fiber, two kinds of oil absorbers with high sorption capacity were prepared by a facile solution–immersion process. The coated polymer with low surface energy and rough fiber surface play important role in the retention of oil. The as-prepared fiber can quickly absorb gasoline, diesel, soybean oil, and paraffin oil up to above 74.5%, 66.8%, 64.4% and 47.8% of oil sorption capacity of raw fiber, respectively. The absorbed oils can be easily recovered by a simple vacuum filtration and the recovered coated-fiber still can be used for several cycles without obvious loss in oil sorption capacity. The thermodynamic study indicates that the adsorption process is spontaneous and exothermic, with complex physisorption and chemisorption. The results suggest that the coated fiber can be used as a low-cost alternative for the removal of oil spilled on water surface. (c2013 Elsevier Ltd.)

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1177797 OIL SPILL -- HEALTH, SAFETY & ENVIRON
ESTIMATING DISCHARGE RATES OF OILY WASTES AND DETERRENCE BASED ON AERIAL SURVEILLANCE DATA COLLECTED IN WESTERN CANADIAN MARINE WATERS; P.D.O’Hara, N.Serra-Sogas, R.Canessa, P.Keller and R.Pelot (Environment Canada; Victoria Univ, BC; MARIN).. MARINE POLLUTION BULLETIN v.69, nos.1-2, pp.157-164, 4/15/2013. (ISSN 0025-326X)

Illegal discharge of waste oil from ships is a major source of mortality for seabirds globally. Using linear and log-linear regression, we explored the relationship between detection rates of marine oily discharges and surveillance effort at different time scales, based on data collected in the Canadian Pacific Ocean by the National Aerial Surveillance Program (NASP) from 1997 to 2006. We introduce an approach for quantifying reductions in discharge rates with increased surveillance while controlling appropriately for surveillance effort, as standard linear correction for effort can introduce considerable bias. Despite low probabilities of detection (0.088–1.1%), we found evidence for reduced discharge rates with increasing surveillance effort for data summarized monthly and bimonthly in region A, which is closest to the NASP base airport. Using residuals derived from the best-fit log-linear models, we found detected discharge rates declined annually (−[0.070 spills/month] × year). (c2013 Elsevier Ltd.)

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1177798 OIL SPILL -- HEALTH, SAFETY & ENVIRON
WEATHERING AND FATE OF A HEAVY FUEL OIL: THE M/V COSCO BUSAN SPILL; K.Lemkau, J.S.Arey, R.K.Nelson, E.E.Peacock and C.M.Reddy (Woods Hole Oceanogr Inst; Swiss Federal Inst Technol).. EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY [EGU] (Vienna, Austria, 4/3-8/2011) ABSTRACTS 2011. (Abstract no.EGU2011-14128; Available at http://meetings.copernicus.org/egu2011 as of 9/9/2013; 1 p; Abstract only)

[For information only - meeting paper abstract]

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1177799 POWER PLANT -- HEALTH, SAFETY & ENVIRON
PROCESS FOR THE ENHANCEMENT OF POWER PLANT WITH CO2 CAPTURE AND SYSTEM FOR REALIZATION OF THE PROCESS; A.Alekseev, R.Smith and R.Krishnamurthy.. U.S. 2013/0,152,595A1, p. 6/20/2013, f. 12/11/2012 (Appl. 710,951), pr. U.S. 12/20/2011 (Appl. 61/577,872) (F01N-0003/00). (12 pp)

Improved methods and systems are disclosed for power plants with CO2 capture and especially power plants with CO2 capture for enhanced oil recovery (EOR) purposes.

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1177800 PRINCIPAL COMPONENT ANALYS -- HEALTH, SAFETY & ENVIRON
METHOD AND APPARATUS FOR PREDICTING OBJECT PROPERTIES AND EVENTS USING SIMILARITY-BASED INFORMATION RETRIEVAL AND MODELING; J.D.Birdwell, T.W.Wang, D.J.Icove and S.P.Horn, asrs. (Tenn Univ Res Foundation).. U.S. 2013/0,159,309A1, p. 6/20/2013, f. 1/14/2013 (Appl. 740,400), pr. U.S. 6/25/2009 (Appl. 61/220,248) and U.S. 6/25/2010 (Appl. 823,284) (G06F-0017/30). (38 pp)

Method and apparatus for predicting properties of a target object comprise application of a search manager for analyzing parameters of a plurality of databases for a plurality of objects, the databases comprising an electrical, electromagnetic, acoustic spectral database (ESD), a micro-body assemblage database (MAD) and a database of image data whereby the databases store data objects containing identifying features, source information and information on site properties and context including time and frequency varying data. The method utilizes a model comprising application of multivariate statistical analysis and principal component analysis in combination with content-based image retrieval for providing two-dimensional attributes of three-dimensional objects, for example, via preferential image segmentation using a tree of shapes and to predict further properties of objects by means of k-means clustering and related methods. The images may be used to identify the site of an oil spill or a source of air pollution.

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1177801 PRINCIPAL COMPONENT ANALYS -- HEALTH, SAFETY & ENVIRON
[R] METHOD AND APPARATUS FOR PREDICTING OBJECT PROPERTIES AND EVENTS USING SIMILARITY-BASED INFORMATION RETRIEVAL AND MODELING; J.D.Birdwell, T.W.Wang, D.J.Icove and S.P.Horn, asrs. (Tenn Univ Res Foundation).. U.S. 2013/0,159,310A1, p. 6/20/2013, f. 1/30/2013 (Appl. 753,653), pr. U.S. 6/25/2009 (Appl. 61/220,248) and U.S. 6/25/2010 (Appl. 823,284) (G06F-0017/30). (42 pp) SRPA# 1,177,800

[For abstract and indexing, see Abstract #1,177,800]

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1177802 PRODUCED WATER -- HEALTH, SAFETY & ENVIRON
DETERMINING BEST AVAILABLE TECHNOLOGIES FOR COST-EFFECTIVE REUSE AND RECYCLE OF PRODUCED AND FLOW-BACK WATERS FROM UNCONVENTIONAL DRILLING; D.Dees.. AAPG INTERNATIONAL CONFERENCE (Cartagena, Colombia, 9/8-11/2013) ABSTRACTS 2013. (Available at http://www.searchanddiscovery.com as of 10/4/2013; 1 p; Abstract only)

In an ever-changing regulatory environment, the ability to reduce freshwater demands is a critical decision each operator must face. This presentation addresses the many decisions each producer faces, starting with freshwater acquisition, transportation of that water to the well pad site, and storage of water before a frac. The next stage is accurate evaluation of flow-back and produced-water chemical composition, organic loading and proposed options for reuse or disposal. The paper discusses various options for disposal and appropriate treatment of the water before disposal. If reuse is deemed as an option, there are multiple paths for treatment of the water, from simple oil removal to distillation for direct discharge to a water body. The presentation discusses these different treatment alternatives, advantages and disadvantages of the technologies and associated costs. The author presents these options in a non-commercial manner, giving the operators the information needed to make informed decisions based on their specific conditions. (Original not available from T.U.)

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1177803 REMOTE SENSOR -- HEALTH, SAFETY & ENVIRON
METHODS AND SYSTEMS FOR CALIBRATING CHEMICAL SENSORS; M.Margalit, asr. (Empire Technol Develop LLC).. U.S. 2013/0,199,261A1, p. 8/8/2013, f. 2/8/2012 (Appl. 512,799), pr. World 2/8/2012 (Appl. 1,024,250) (G01N-0031/00). (10 pp)

Methods and systems for calibrating a chemical sensing system are disclosed. Detection of a substance using a first chemical sensor in a chemical sensing system may be initiated at a first time. The first chemical sensor may output a first sensor value. Detection of the substance using a second chemical sensor in a chemical sensing system may be initiated at a second time that differs from the first time by a delta value. The second chemical sensor may output a second sensor value. The chemical sensing system may be calibrated based on the first and second sensor values at the second time and the first and second sensor values at a current time. The methods and systems may be employed as a hazardous chemical leak detector that includes natural gas and gas condensates.

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1177804 SOIL POLLUTION -- HEALTH, SAFETY & ENVIRON
ESTIMATION OF AN ECOLOGICAL STATUS OF SOILS IN TERRITORY OF UVAT DISTRICT, TYUMEN REGION; G.A.Merkushina, D.V.Polyansky, Yu.V.Pavlov, Yu.G.Borodin and A.G.Perekupka (Giprotyumenneftegaz).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.102-104, March 2009. (ISSN 0028-2448; 7 refs; In Russian)

Results of definition of background (initial) soil pollution in corridors of six extended traces of oil pipelines and highways, and also in the territory of two oil-and-gas fields in Uvat district, Tyumen Region, are presented. The analysis of polluting substances distribution in soils is carried out.

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1177805 SURFACE ACTIVE AGENT -- HEALTH, SAFETY & ENVIRON
TERTIARY AMINE-BASED SWITCHABLE CATIONIC SURFACTANTS AND METHODS AND SYSTEMS OF USE THEREOF; P.G.Jessop and M.F.Cunningham, asrs. (Queen's Univ, Kingston).. U.S. 2013/0,200,291A1, p. 8/8/2013, f. 1/28/2013 (Appl. 751,963), pr. U.S. 1/27/2012 (Appl. 61/591,660) (B01F-0017/00; B03D-0001/018). (20 pp)

The present application provides switchable cationic surfactants based on tertiary amines, and methods and systems of use thereof. The tertiary amine structure allows these switchable surfactants to reversibly switch from a non-surfactant form to a surfactant form by the simple introduction of an ionizing trigger gas that comprises CO2, CS2, COS, or a mixture thereof, at a pressure and an amount sufficient to convert all or a substantial portion of the amine to the salt, where the total pressure of the ionizing trigger gas is approximately ambient pressure. These tertiary amine-based switchable surfactants are further characterized by facile switching from the surfactant form to the non-surfactant form. The surfactants may be employed in environmental remediation involving an oil spill, viscous oil pipelining, oil sand separation and emulsion polymerization.

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1177806 TAILINGS -- HEALTH, SAFETY & ENVIRON
PROCESS FOR DEWATERING OF OIL SAND TAILING MUDS; J.J.T.Smits, J.Den Boestert and J.L.Bravo, asrs. (Shell Oil Co).. U.S. 2013/0,153,511A1, p. 6/20/2013, f. 11/16/2012 (Appl. 679,509), pr. Europe. 12/16/2011 (Appl. 11,194,026) (C02F-0001/52). (8 pp)

The present invention relates to a process for dewatering oil sand tailing muds, comprising (1) adding a flocculant into oil sand tailing muds and mixing the flocculant and the tailing muds; and (2) filtering the flocculated tailing muds using a dynamic filtration system. In step 2, a pressure difference is applied over the filter and the dynamic filtration system comprises a means for producing a dynamic action by which the filter cake is continuously or intermittently moved, deformed and/or broken, the filter cake being the solidified material that sets on the filter during filtration. The process is useful for dewatering oil sand tailing muds from tailing ponds, such as those produced in the Athabasca oil fields in Canada.

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1177807 TALAKAN FIELD -- HEALTH, SAFETY & ENVIRON
NATURAL AND ETHNOSOCIAL FEATURES OF DEVELOPMENT OF SURGUTNEFTEGAZ OAO FIELDS IN REPUBLIC SAKHA (YAKUTIA); A.Yu.Solodovnikov and A.M.Soromotin (SurgutNIPIneft).. NEFTYANOE KHOZYAISTVO (OIL INDUSTRY) no.3, pp.98-101, March 2009. (ISSN 0028-2448; Over 10 refs; In Russian)

Features of the development of Surgutneftegaz OAO fields by the example of Talakanskoye oil-gas condensate field are considered. Monitoring research investigations of a background pollution level of environmental components are conducted. The actions, when realized, allows minimizing the possible effects of failures.

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1177808 WASTE WATER -- HEALTH, SAFETY & ENVIRON
ENVIRONMENTAL HARM ASSESSMENT OF A WASTEWATER DISCHARGE FROM HAMMERFEST LNG: A STUDY WITH BIOMARKERS IN MUSSELS (MYTILUS SP.) AND ATLANTIC COD (GADUS MORHUA); J.Beyer, N.Aarab, A.H.Tandberg, A.Ingvarsdottir, S.Bamber, J.F.Borseth, L.Camus and R.Velvin (NIVA (Norway); Int Res Inst Stavanger).. MARINE POLLUTION BULLETIN v.69, nos.1-2, pp.28-37, 4/15/2013. (ISSN 0025-326X)

Biologically treated wastewater (WW) from the Hammerfest LNG (liquefied natural gas) plant is discharged to the sea. A study using biomarkers in mussels and Atlantic cod was performed to examine whether this discharge meets a zero harmful emission requirement. Caging of mussels close to the outfall and exposure of mussels and fish to WW in the laboratory were conducted, and a suite of contaminant responsive markers was assessed in exposed animals. In mussels the markers included chemical contaminant levels, haemocyte lysosomal instability and nucleus integrity, cellular energy allocation, digestive gland and gonad histopathology and shell-opening behaviour. In fish, biliary PAH metabolites and gill histopathology biomarkers were measured. A consistent cause-effect relationship between WW treatments and markers measured in test animals was not found. The results therefore indicate that the WW emission is unlikely to represent a significant stress factor for the local marine environment under the conditions studied. (2013 Elsevier Ltd.)

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1177809 WATER TREATING -- HEALTH, SAFETY & ENVIRON
OPTIMIZATION OF SAGD [STEAM-ASSISTED GRAVITY DRAINAGE] PRODUCED WATER EVAPORATOR DESIGN AND IMPACTS ON BLOWDOWN DISPOSAL OPTIONS; N.S.Haralson, G.L.Wilson and W.F.Heins (GE Water & Process Technol).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-323; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 6 pp)

Significant development work has been undertaken to optimize the evaporative produced water treatment process, specifically targeting caustic consumption and evaporator blowdown handling. This paper presents the results of this continued development work and provides comparisons of capital and operating costs for the recently optimized evaporative approach.

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1177810 WATER TREATING -- HEALTH, SAFETY & ENVIRON
EVAPORATION PROCESS FOR CONVENTIONAL DRUM BOILERS: IS THE WATER DISTILLATE QUALITY ACCEPTABLE?; P.Pedenaud, F.Dang, K.Minnich and D.E.Gamache (Total; Veolia).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-330; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 6 pp)

The production of extra-heavy oil through steam-assisted gravity drainage (SAGD) requires large amounts of steam which are typically generated by once-through steam generator boilers or conventional drum boilers. For the conventional drum boiler, the ASME or ABMA boiler water specifications are very stringent and generally can not be achieved via a precipitation process (e.g., warm lime softening + ion exchange). Total is operating the Joslyn Deer Creek Site using SAGD, and this site is equipped with evaporators located upstream of conventional drum boilers (medium pressure) which are treating recycled produced water. This evaporator distillate quality was studied and compared to the high-pressure conventional drum boiler feed water recommendations which are stricter than for medium pressure boilers. It was found that the evaporator water quality data do not meet high-pressure boiler feed water specifications in regard to total silica and oil and grease. Veolia will propose an alternative to the boiler feed water standards for conventional high-pressure drum boilers which will be tested at a pilot facility to be installed on a producing site.

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1177811 WATER TREATING -- HEALTH, SAFETY & ENVIRON
PURIFICATION OF A FLUID FOR EXAMPLE WATER AFTER FRACTURING; C.Wilson.. U.S. 2013/0,153,396A1, p. 6/20/2013, f. 12/15/2011 (Appl. 326,990) (B01D-0003/10). (6 pp)

An apparatus for treating frac water may include (1) a vacuum container to support a vacuum; (2) a heating device to heat the vacuum container; (3) a spiral auger to rotate to separate the frac water being positioned within the vacuum container; (4) a condenser to condense the water vapor to liquid water; (5) a second vacuum chamber to receive the liquid water; and (6) a storage container to store the liquid water.

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1177812 WATER TREATING -- HEALTH, SAFETY & ENVIRON
CLEANING, PURIFYING, TREATING, AND EXTRACTING COMPOSITIONS AND ASSOCIATED METHODS FOR UTILIZING THE SAME; M.J.Sanchez and W.D.Sanchez, asrs. (MWJ LLC).. U.S. 2013/0,157,920A1, p. 6/20/2013, f. 2/11/2013 (Appl. 764,036), pr. U.S. 7/21/2011 (Appl. 136,097) (C11D-0003/04; C02F-0001/68; E21B-0043/24; C10G-0021/12; E21B-0043/16). (11 pp)

A process for purifying extracted oil, byproducts, and wastewater, includes (1) providing a composition having at least one solvent, an alkaline agent, a deflocculant, at least one surfactant selected from the group comprising an alkoxylated alcohol surfactant, an alkylamino-polyethoxy-sulfate surfactant, a polyether-phosphate ester surfactant, a surfactant that is a phosphate ester of an ethoxylated alcohol, and a surfactant that is a polyethyleneglycol monoaklyl ether, and a bonding agent; and (2) associating the composition with at least one of extracted oil, byproducts, and wastewater, including, but not limited to, froth, middlings, tailings, mature fine tailings, solids, and combinations thereof.

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1177813 WATER TREATING -- HEALTH, SAFETY & ENVIRON
CLEANING OF WATER FROM DRILLING AND HYDRAULIC FRACTURING OPERATIONS; M.Durden.. U.S. 2013/0,160,989A1, p. 6/27/2013, f. 12/21/2012 (Appl. 723,387), pr. U.S. 12/21/2011 (Appl. 61/578,367) (E21B-0021/06; E21B-0041/00). (7 pp)

The present disclosure pertains to systems and methods for cleaning water from drilling and hydraulic fracturing operations for reuse and/or release into the environment.

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1177814 WATER TREATING -- HEALTH, SAFETY & ENVIRON
REACTOR FOR WATER TREATMENT AND METHOD THEREOF; D.D.Medvedev, asr. (Arana Holdings LLC).. World 2013/155,283A1, p. 10/17/2013, f. 4/11/2013 (Appl. 1,336,145), pr. U.S. 4/11/2012 (Appl. 61/622,613) (C02F-0001/32; C02F-0001/78; C02F-0001/36). (29 pp)

The present invention relates to a system and method for decontamination, sterilization and purification of water. A scalable reactor and method for treatment of contaminated water is disclosed. The reactor simultaneously combines ozone infusion, ultraviolet (UV) irradiation and ultrasound (US) vibration in one reaction zone. The process dramatically increases reaction efficiencies and allows greater volume flow of contaminated water for treatment. The process has been found to reduce contaminants in different types of water and applications, including potable, drinking, recycled for pools or aquariums, oil field, waste or recycled industrial water.

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1177815 WATER TREATING -- HEALTH, SAFETY & ENVIRON
WATER USE, TREATMENT AND RECYCLING IN CANADA'S OIL SANDS; C.W.Fulton and J.Kus (StatoilHydro Canada Ltd).. WORLD HEAVY OIL CONGRESS [WHOC] TECHNICAL CONFERENCE (Puerto La Cruz, Venezuela, 11/4-5/2009) PROCEEDINGS 2009. (Paper no.2009-325; Available at http://www.worldheavyoilcongress.com as of 7/27/2010; 5 pp; Abstract only)

[For information only - meeting paper abstract]

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1177816 WATER TREATING -- HEALTH, SAFETY & ENVIRON
FLUID TREATMENT SYSTEM WITH SELF-CLEANING FILTER; T.L.Holmes and D.J.Burns, asrs. (Perry Equipment Corp).. U.S. 2013/0,200,012A1, p. 8/8/2013, f. 2/3/2012 (Appl. 365,815) (B01D-0036/02; B01D-0029/64; B01D-0021/02). (11 pp)

There are disclosed a method and apparatus for treating fluid in a fluid treatment system with self-cleaning filters. The liquid treatment system includes a tank defining an interior volume of at least 25 gallons. The tank includes a gravity settling portion proximate a lower end of the tank and generally configured in a frustoconical shape. A self-cleaning filter device is coupled to a top portion of the tank. The self-cleaning filter device is configured to filter out solids from fluid entering the tank and return filtered solids to the tank. Solids in the fluid entering the tank are removed from the fluid both by the filter device and by gravity. The method may be used in oil and gas drilling, well completion and producing operations.

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SCIENCE & ENGINEERING

table of contents list of publications

1177817 ELUTION -- SCIENCE & ENGINEERING
HEAP MONITORING; T.Botto and J.H.Meyer, asrs. (Schlumberger Canada Ltd; Schlumberger Serv Petrol; Schlumberger Holdings Ltd; Schlumberger Technol BV; Prad Res & Develop Ltd; Schlumberger Technol Corp).. World 2013/155,075A1, p. 10/17/2013, f. 4/9/2013 (Appl. 1,335,779), pr. U.S. 4/9/2012 (Appl. 61/621,844) (G01T-0001/20). (36 pp)

A system is disclosed comprising a plurality of cosmic ray muon detectors, each positioned to detect cosmic ray muons that traverse a heap and operable to generate a signal in response to cosmic ray muons that impact the detectors. A processor can then generate a density distribution of a portion of the heap based on the signals generated by the plurality of cosmic ray muon detectors. The system may be employed in heap leaching of ore in mining operations where net present value is assessed.

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1177818 HULL (MARINE) -- SCIENCE & ENGINEERING
AN APPARATUS, AN ARRANGEMENT AND A METHOD FOR LOCKING AN UNDERWATER HATCH OR OTHER REMOVABLE STRUCTURE; J.Puustelli, T.Rintala, J.Suutari and O.Toivonen, asrs. (Beacon Finland Ltd Oy).. World 2013/150,174A1, p. 10/10/2013, f. 4/3/2013 (Appl. 1,300,015), pr. Fin. 4/4/2012 (Appl. 20,125,387) and Fin. 4/26/2012 (Appl. 20,125,461) (B63B-0019/12; B63B-0019/24). (23 pp)

The object of the invention is an apparatus for locking an underwater hatch or other removable or turnable structure in a vessel or other floating structure, which comprises at least a locking rod that is attachable in an articulated manner to the hull or other structure of the vessel or other floating structure and which locking rod is, at its second end, arrangeable in connection with a surface of the lockable hatch or other removable or turnable structure, a turning mechanism of the locking rod, which comprises at least a first part and a second part, which are, at their first ends, attached to each other in an articulated manner, and of which a second end of the first part is arranged in connection with the locking rod in an articulated manner and a second end of the second part; is attachable in an articulated manner to the hull or other structure of the vessel or other floating structure, and an actuator that is arranged in connection with the turning mechanism.

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1177819 UNDERWATER VEHICLE -- SCIENCE & ENGINEERING
FRAMEWORK WITH A BUOYANT BODY FOR A SUBSEA VEHICLE AS WELL AS A METHOD FOR CONSTRUCTION OF A FRAMEWORK; A.I.Lif, E.Myhre and T.G.Alvestad, asrs. (IKM Subsea AS).. U.S. 2013/0,199,434A1, p. 8/8/2013, f. 3/5/2011 (Appl. 641,238), pr. Norw. 5/5/2010 (Appl. 20,100,650), Norw. 3/25/2011 (Appl. 20,110,455) and World 3/5/2011 (Appl. 1,100,143) (B63B-0003/13). (6 pp)

A frame is for a remotely operated vehicle. Several frame elements provide a carcass formed of a buoyant material. The frame elements are provided by a curable material having been arranged on the surfaces of the carcass, forming a rigid shell around the carcass. A method of constructing a frame is for a remotely operated vehicle. Several frame elements provide a carcass formed of a buoyant material. The method comprises (1) forming several core elements of a buoyant material; (2) forming a carcass by joining the core elements together; (3) applying a curable material to the surface of the carcass; and (4) forming several mounts integrated into the curable material, for vehicle components. Remotely operated vehicles have application to the offshore petroleum industry.

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Author and Affiliation Index

table of contents

3DSymSam-Geophys Advice 1177452*
Aalborg Univ 1177674*
Aarab, N 1177808
Aarseth, N A 1177429
Abbaszadeh, M 1177685
Abdallah, W 1177755
Abdou, M 1177683
Aberle, T P 1177781
Abma, R 1177365
Abma, R 1177470
Abma, R 1177471
Abolo, N 1177603
Absolute Completion 1177620*
Abu Dhabi Co Onshore Oper 1177682*
Abu Dhabi Co Onshore Oper 1177683*
Abu Dhabi Co Onshore Oper 1177709*
Abu Dhabi Co Onshore Oper 1177711*
Abu Dhabi Co Onshore Oper 1177727*
Abu Dhabi Polytechnic 1177722*
Ache, A 1177572
Acosta, J 1177208
Acosta, J 1177237
Acosta, J C 1177380
Adelaide Univ 1177676*
Adhoobi, A 1177718
Aera Energy 1177730*
Afanasenkov, A P 1177274
Afara, M 1177770
Agada, S 1177724
Aganin, I A 1177703
Agencia Nac Hidrocarburos 1177158*
Agencia Nac Hidrocarburos 1177163*
Agencia Nac Hidrocarburos 1177175*
Agencia Nac Hidrocarburos 1177177*
Agencia Nac Hidrocarburos 1177380*
Agencia Nac Hidrocarburos 1177415*
Agencia Nac Hidrocarburos 1177506*
Agon, C 1177398
Agudelo, W 1177371
Agudelo, W 1177378
Agudelo, W 1177379
Agudelo, W 1177398
Agudelo, W 1177428
Agudelo, W 1177445
Agudelo, W M 1177181
Agudelo, W M 1177377
Agudelo Zambrano, W M 1177481
Aguilar, R 1177265
Aguilera, J P 1177375
Aguilera, R 1177148
Aguilera, R 1177179
Aguilera, R 1177227
Aguilera, R 1177259
Aguilera, R 1177307
Aguilera, R 1177338
Aguilera, R C 1177163
Aguirre A, H H 1177417
Aguirre, H 1177164
Ahmad, K 1177412
Ahmed, I 1177365
Aker Arctic Technology Oy 1177768*
Akkurt, R 1177593
Akuanyionwu, D 1177699
Al-Alawi, N 1177727
Al-Anezi, K 1177693
Alberta Univ 1177441*
Alberta Univ 1177511*
Alberta Univ 1177712*
Al-Beshri, F S 1177729
Albornoz, O 1177742
Aldana, M 1177395
Al-Dhafeeri, A M 1177729
Al-Dhahli, A 1177678
Alekseev, A 1177799
Aleman, A 1177309
Aleman, A M 1177265
Alexander, G 1177470
Al-Fares, A 1177205
Alfaro, C 1177177
Alfaro Sabogal, E 1177181
Alfonso, H 1177445
Alfonso, H A 1177381
Alfonso, M 1177165
Alfonso, P 1177242
Alfredsson, H 1177773
Alfred Wegener Inst 1177319*
Algerian Petroleum Inst 1177283*
Algeroy, J 1177611
Ali-Ali, Z A 1177726
Alimi, H 1177317
Al-Kandary, A 1177206
Al-Khafji Joint Operations 1177729*
Al-Khamis, A 1177205
Al-Khamiss, A 1177206
Al-Khanbashi, S 1177682
Allers, J E 1177714
All Russia Research Inst 1177192*
All Russia Research Inst 1177251*
All Russia Research Inst 1177262*
All Russia Research Inst 1177275*
All Russia Research Inst 1177276*
All Russia Research Inst 1177277*
All Russia Research Inst 1177504*
Al-Mushrafi, N M 1177570
Al-Muthana, A S 1177570
Al-Nasser, M N 1177570
Al-Omair, A 1177726
Al-Ratrout, A A 1177709
Al-Sadah, A 1177729
Al-Sahn, H 1177727
Al-Shabibi, T A 1177682
Al-Sofi, A M 1177700
AlSofi, A M 1177751
Altamar, R 1177744
Altunbay, M M 1177579
Alvarado, I 1177177
Alvarez, C 1177269
Alvarez, G 1177213
Alvarez, G 1177378
Alvarez, G 1177379
Alvarez, G 1177428
Alvestad, J 1177735
Alvestad, T G 1177819
Alves, T M 1177133
Alves, T M 1177134
Alzate D, J C 1177417
Alzate, J C 1177164
Amenna, M 1177150
Amir, N 1177767
Amtereg, A 1177682
Amundsen, L 1177462
Anan, T I 1177293
ANCAP 1177266*
Andersen, H S 1177779
Andreasson, P G 1177281
Andreussi, P 1177648
Angerer, E 1177366
Ang, M 1177632
Anguiano-Rojas, J 1177625
ANSALL Ltda 1177224*
Anthony, W L 1177586
Antich, N 1177123
Antolinez, H 1177166
Antolinez, H 1177419
Antolinez, H 1177420
Antonenko, D V 1177589
Apache Corp 1177440*
Apreda, D 1177124
Aqrawi, A A 1177456
Aquino-Olivos, M A 1177684
Aramco Services Co 1177540*
Aramco Services Co 1177554*
Aramco Services Co 1177700*
Arana Holdings LLC 1177814*
Araujo, E 1177140
Araujo Paz, Y 1177167
Araujo, Y 1177273
Araujo, Y 1177486
Archer, F 1177596
Archer, S H 1177439
Archon Technologies Ltd 1177742*
Arcis Seismic Solutions 1177525*
ARC Solutions 1177704*
Arcuri, M 1177176
Ardal, K J 1177457
Ardila, L 1177180
Ardilex Inc 1177180*
Arey, J S 1177798
Ariana Ltda 1177180*
Arjona, A 1177161
Ashley, A 1177131
Ashrafyan, M O 1177589
Astakhov, A S 1177324
Atkinson, I A 1177409
Atudorei, V 1177322
Atudorei, V 1177350
Auer, D 1177608
Australia National Univ 1177715*
Avseth, P A 1177457
Awramik, S M 1177314
Ayache, M 1177150
Ayala Marin, C A 1177178
Ayala, P 1177394
Ayasse, C 1177742
Ayres, R N 1177626
Azam, H 1177729
Azmi, A 1177454
Bacenetti, R 1177363
Bachrach, R 1177444
Bacic, G 1177718
Bacon, R M 1177740
Badri, M 1177582
Badulescu, C 1177431
Bagagli, R 1177629
Bagnaro, P L 1177551
Bagrintseva, K I 1177262
Bague, O 1177713
Baig, A 1177468
Baird, A F 1177387
Baker Hughes 1177575*
Baker Hughes Inc 1177573*
Baker Hughes Inc 1177578*
Baker Hughes Inc 1177602*
Baker Hughes Inc 1177617*
Baker Hughes Inc 1177630*
Baker Hughes Inc 1177634*
Baker Hughes Inc 1177635*
Baker Hughes Inc 1177637*
Baker Hughes Inc 1177732*
Bakke, K 1177141
Ballesteros, C I 1177229
Balsamo, F 1177144
Bamber, S 1177808
Bangs, N L B 1177403
Banner, E J 1177545
Banta, D L 1177641
Bao, Y 1177558
Bao, Y 1177559
Barany, I 1177168
Barbarand, J 1177278
Barcelona Univ 1177189*
Barcelona Univ 1177242*
Bargiacchi, M 1177766
Barillas, J L M 1177745
Barka, D 1177456
Barker, D 1177362
Barnard, A 1177331
Barnett, A 1177720
Barredo, S 1177280
Barrera Pacheco, D F 1177181
Barrett, A 1177400
Barrios Molano, H E 1177294
Barrios, Y 1177237
Bartolini, A 1177322
Bartolini, A 1177350
Basani, R 1177260
BASF Schweiz AG 1177663*
BASF SE 1177663*
Bashbush, J L 1177746
Bashkirian State Univ 1177308*
Bashneft ANK 1177696*
Bashneft-Geoproyekt 1177696*
Basta, G 1177140
Bastidas Rueda, E 1177268
Battani, A 1177340
Bauer, J E 1177361
Bayona, G 1177210
Bayona, G 1177221
Bayona, G 1177327
Bayou, B 1177150
Beacon Finland Ltd Oy 1177818*
Beckwith, J A 1177510
Bedle, H 1177474
Bedoya, G 1177158
Bedoya, G 1177175
Be'eri-Shlevin, Y 1177281
Behm, M 1177257
Beicip Franlab 1177693*
Beicip Franlab 1177713*
Beijing Sci Technol Co Ltd 1177640*
Beijing Univ Chem Technol 1177640*
Bekker, J R M 1177561
Belandria, N 1177128
Belhai, D 1177150
Bell, L 1177524
Belnap, J D 1177559
Belopolsky, A 1177122
Belushi, K 1177718
Benabentos, M 1177364
Benezeth, P 1177359
Benezeth, P 1177773
Benghazi Univ 1177727*
Ben Gurion Univ 1177232*
Benison, K C 1177243
Benjamini, C 1177232
Benlizidia, I 1177659
Bennett, B 1177306
Bergami, C 1177349
Bergen Univ 1177332*
Bergen Univ 1177346*
Berkhout, G 1177389
Berkhout, G 1177390
Berkhout, G 1177450
Berkowitz, R 1177776
Berlin Univ 1177202*
Bermudez, H 1177148
Bermudez, H 1177165
Bernal Mora, M J 1177719
Bernal Rodriguez, L A 1177219
Bernardo, L M 1177254
Bernardo, L M 1177280
Bernasconi, S M 1177349
Bernasconi, S M 1177351
Berndt, C 1177403
Bernhardt, C 1177252
Bertagnolli, K E 1177560
Bertkau, W 1177663
Bertolotti, R 1177305
Besana, G 1177541
Besana, G 1177568
Bessedik, M 1177150
Besse, J 1177150
Beyer, J 1177808
Bezerra, H 1177144
BG Group 1177720*
BGP 1177477*
BGP 1177515*
Bhattacharya, M 1177131
BHP Billiton 1177518*
BHP Billiton Petroleum Inc 1177384*
Bialik, O 1177232
Bilak, R 1177783
Bintanja, R 1177348
Biondi, E 1177408
Birdwell, J D 1177800
Birdwell, J D 1177801
Biver, P 1177691
Blacquiere, G 1177390
Blacquiere, G 1177450
Blacquiere, G 1177490
Blaise Pascal Univ 1177684*
Blake, A P 1177548
Blanco, V 1177328
Blanco V, V 1177321
Blanco V, Y 1177321
Blanco, W 1177236
Blanco, Y 1177327
Blom, C P A 1177697
Boday, D J 1177785
Boer, B 1177348
Boerrigter, P M 1177697
Bogazzi, M 1177766
Boiero, D 1177451
Boiero, D 1177480
Bois, A P 1177590
Bolgov, I D 1177662
Bongiorno, F 1177128
Bongiorno P, F 1177311
Bonilla, M 1177508
Bonin, B 1177278
Bonnel, A 1177693
Bonn Univ 1177304*
Bonow, J 1177196
Bonow, J M 1177142
Boone, T A 1177731
Borghi, P 1177252
Borisova, L S 1177354
Borodin, Yu G 1177804
Borot de Battisti, M 1177681
Borseth, J F 1177808
Bosio, G 1177159
Botto, T 1177817
Bouaouaja, M 1177682
Bouazza, A 1177778
Boumerdes Univ 1177283*
Bourrel, M 1177739
Bousquie, N 1177397
Boutelier, D 1177299
BP 1177365*
BP 1177412*
BP 1177425*
BP 1177470*
BP 1177471*
BP 1177484*
BP America Inc 1177396*
BP Andean 1177396*
BP Colombia 1177164*
BP Colombia 1177420*
BP Corp North America Inc 1177627*
BP Exploration 1177122*
BP Exploration 1177174*
BP Exploration Colombia 1177417*
BP UK 1177164*
Braden, J L 1177649
Brantley, S L 1177341
Bravo, J L 1177806
Bremen Univ 1177190*
Brem, V 1177527
Breschi, T 1177766
Brewer, J D 1177467
Briceno, L A 1177177
Briceno, L A 1177380
Brightling Equipment Ltd 1177664*
Brignoli, M 1177791
Brinati, G 1177568
Bristol Univ 1177386*
Bristol Univ 1177387*
Bristol Univ 1177520*
British Columbia Univ 1177465*
British Columbia Univ 1177675*
British Geological Survey 1177366*
Brock, N 1177683
Brooks, T 1177401
Broussard, B 1177461
Broussard, J 1177597
Brown, J 1177652
Brown, J 1177660
Brune, R H 1177524
Brust, J 1177671
Bryant, C L Jr 1177614
Brym, M 1177671
Bubnov, V P 1177504
Buchanan, L 1177753
Bucher, H 1177322
Buenafama, P 1177448
Bueno, L 1177214
Buenos Aires Univ 1177129*
Buenos Aires Univ 1177254*
Buenos Aires Univ 1177280*
Bundeleva, I 1177359
Bundesan Geowiss Rohstoffe 1177188*
Bureau Rech Geol Min (Fr) 1177793*
Bureniye NPO 1177589*
Burleigh, L H 1177637
Burleson, J D 1177623
Burns, D J 1177816
Burton, A 1177757
Busaidi, S 1177468
Busharina, S V 1177308
Caccaglio, O 1177344
Cain, S A 1177633
Caldas Univ 1177148*
Calderas, R 1177128
Calderon, J 1177165
Calgary Univ 1177156*
Calgary Univ 1177400*
Calgary Univ 1177402*
Calgary Univ 1177469*
Calgary Univ 1177485*
Calgary Univ 1177754*
Calif Univ, Santa Barbara 1177314*
Calkins, J M 1177666
Calle, A 1177376
Calvete, F E 1177236
Calvo, R 1177245
Cambridge Univ 1177349*
Cambridge Univ 1177776*
Cameron, D E L 1177409
Campbell, A 1177430
Campbell, R R 1177631
Campinas State Univ 1177493*
Campos, F 1177660
Campos, H 1177508
Campos, O 1177701
Camus, L 1177808
Canessa, R 1177797
Canet, C 1177242
CanmetENERGY 1177770*
Cantelli, A 1177260
Canuel, E A 1177361
Cao, Z 1177466
Capotondi, L 1177349
Carbaugh, W L 1177553
CARBO Ceramics Inc 1177569*
Cardenas, P 1177233
Cardiff Univ 1177133*
Cardiff Univ 1177134*
Cardinez, S 1177461
Cardinez, S 1177508
Carlini, R 1177789
Caro P, M 1177506
Carrillo, G 1177300
Carrillo, G 1177301
Carrillo, G 1177302
Carson Aerogravity 1177415*
Carter, J E 1177409
Carter, L 1177558
Carvajal, G A 1177752
Casadiego, E 1177162
Casanova, M 1177250
Casas-Sainz, A M 1177297
CASP 1177298*
Castano, K P 1177422
Castellanos, D 1177213
Castel, Y 1177758
Castillo, A 1177146
Castillo, J F 1177237
Castillo, L A 1177179
Castillo Lopez, L A 1177163
Castro, A A 1177140
Catalunya Politecnica Univ 1177242*
Caudrilla Resources 1177410*
Caulfield, I 1177620
Cavalie, A 1177453
Cavender, T 1177599
Ceci, F 1177460
Cediel, F 1177158
Cediel, F 1177175
Cediel, M 1177373
Centre Natl Rech Sci (Fr) 1177684*
Cepcolsa 1177159*
Cepcolsa 1177223*
Cepcolsa 1177325*
Cepcolsa 1177383*
CEPSA 1177159*
CEPSA 1177223*
CEPSA 1177305*
CEPSA Exploration & Prod 1177325*
Ceramatec Inc 1177756*
Cergy Pontoise Univ 1177182*
Ceron, R 1177158
Ceron, R 1177175
Cervera, M 1177280
Cespedes, S P 1177229
C-FER Technologies 1177620*
C-FER Technologies Canada 1177588*
C-FER Technologies Canada 1177598*
CFF Technologies Ltd 1177563*
CGG France 1177527*
CGG Norway 1177437*
CGG Veritas Services SA 1177601*
Chacon, O 1177618
Chadwick, A 1177775
Chalifoux, G V 1177701
Chalmers, J 1177196
Chandola, S K 1177487
Chandra, V 1177720
Chang, C H 1177501
Chang, Y F 1177501
Chapman, M 1177366
Chapman, M P 1177560
Chaverra, M 1177174
Chavez, L 1177742
Checa, J 1177425
Chegrouche, F 1177584
Chemingui, N 1177476
Chemingui, N 1177479
Chen, B 1177197
Chen, D 1177335
Chen, D 1177343
Chen, D 1177676
Cheng, J 1177153
Cheng, J 1177441
Cheng, X 1177315
Chen, J 1177156
Chen, J 1177640
Chen, S 1177314
Chen, X 1177153
Chen, X H 1177392
Chen, Y 1177152
Chen, Y 1177464
Chen, Z 1177754
Chermak, A 1177414
Chevron 1177668*
Chevron Corp 1177474*
Chevron Energy Technol Co 1177670*
Chevron Energy Technol Co 1177738*
ChevronTexaco 1177249*
Childers, L G 1177553
China Coalbed Methane Co 1177676*
China Nat Offshor Oil Corp 1177413*
China Nat Offshor Oil Corp 1177528*
China Univ Geosci, Wuhan 1177126*
China Univ Petroleum 1177392*
China Univ Petroleum 1177430*
China Univ Petroleum 1177516*
China Univ Petroleum 1177544*
China Univ Petroleum 1177676*
China Univ Petroleum 1177688*
Chinese Academy Geol Sci 1177151*
Chinese Academy Geol Sci 1177154*
Chinese Academy Geol Sci 1177155*
Chinese Academy Geol Sci 1177198*
Chinese Academy Geol Sci 1177209*
Chinese Academy Geol Sci 1177314*
Chinese Academy Sciences 1177157*
Chinese Academy Sciences 1177200*
Chinese Academy Sciences 1177323*
Chinese Academy Sciences 1177335*
Chinese Academy Sciences 1177343*
Choi, S K 1177778
Chongqing Univ 1177675*
Chong, T S 1177683
Chopra, S 1177525
Chou, G 1177474
Chrest, B 1177537
Christensen, N 1177560
Christian, D 1177182
Christiansen, M 1177457
Christiansen, R 1177248
Chu, G 1177640
Chung, C L 1177501
Chu, Y 1177200
Cie Generale Geophysique 1177397*
Cie Generale Geophysique 1177413*
Cie Generale Geophysique 1177434*
Cie Generale Geophysique 1177436*
Cie Generale Geophysique 1177442*
Cie Generale Geophysique 1177443*
Cie Generale Geophysique 1177453*
Cie Generale Geophysique 1177500*
CIOH 1177380*
Claesson, S 1177281
Clara, C 1177683
Clarke, H 1177410
Clarke, R 1177470
Clarke, R 1177597
Clark, S A 1177367
Clavel, J 1177581
Clementi, M 1177460
Clerke, E A 1177726
Clow, F 1177468
Cobbold, P R 1177142
Cochet, F 1177575
COEOR 1177672*
Coffin, R B 1177361
Cohut, M 1177431
Coimbra, T A 1177493
Coimbra Univ 1177216*
Colaianna, P 1177541
Colaianna, P 1177568
Coles, D 1177496
Cole, T 1177649
Collin, M 1177512
Colmenares, J 1177199
Colombia Nacional Univ 1177163*
Colombia Nacional Univ 1177177*
Colombia Nacional Univ 1177179*
Colombia Nacional Univ 1177219*
Colombia Nacional Univ 1177307*
Colombia Nacional Univ 1177373*
Colombia Nacional Univ 1177418*
Colombia Nacional Univ 1177426*
Colombo, D 1177489
Complex Flow Design AS 1177260*
Computer Modelling Grp Ltd 1177711*
Computer Modelling Grp Ltd 1177753*
Computer Oil Technologies 1177263*
CONICET 1177266*
Connolly, P A 1177484
ConocoPhillips 1177467*
Contorer, A 1177787
Contreras, F 1177195
Cooke, D L 1177769
Cooke, S 1177474
Copenhagen Univ 1177257*
Cople, P 1177331
Corbett, P W M 1177720
Coronel, D 1177235
Corporacion Geologica ARES 1177210*
Corporacion Geologica ARES 1177221*
Corporacion Geologica ARES 1177327*
Correa, H 1177507
Correia, R F 1177140
Cortes, G 1177580
Cortes, M 1177210
Cortes, M 1177327
Corzo, M 1177470
Cosentino, D 1177247
Costanzo, V 1177395
Cotton, J 1177420
Cougar Drill Solutions Inc 1177564*
Courtois, P 1177556
Couttolenc, F 1177488
Cova, J 1177746
Covenant Univ 1177750*
CRAAG 1177150*
Crane, K 1177324
Crews, J 1177602
Crockett, D B 1177560
Crook, A 1177518
Crook, C 1177391
Crossley, R 1177131
Crowdis, D 1177592
Crowley, D B 1177536
Cruden, A 1177299
Crutchley, G J 1177403
CSIRO 1177778*
CSIRO Earth Science 1177716*
CSoft Engineering 1177628*
Cuartas, C 1177158
Cuartas, C 1177161
Cudd Pressure Control Inc 1177604*
Cuesta, J 1177744
Cuevas, J 1177135
Cukur, D 1177304
Cukurova Univ 1177247*
Cumming, V M 1177244
Cunningham, M F 1177805
Cunningham, S M 1177604
CUPET 1177596*
Curry, D A 1177573
Dacol Fuentes, S 1177167
Damas, C P 1177734
Damborenea, S E 1177129
Dang, F 1177810
Daniel, J M 1177159
Daraboina, N 1177675
Darbas, G 1177247
Darke, K 1177461
Darling, D W 1177556
Darmstadt Tech Univ 1177149*
Da Silva, S 1177161
Daudt, J 1177300
Daudt, J 1177301
Daudt, J 1177302
Davidenko, B I 1177275
Davis, J 1177636
Davis, R H 1177616
Dawson Geophysical Co 1177523*
Deavers, D E Jr 1177772
Debord, J D 1177732
Dees, D 1177802
de Finis, F 1177363
Deflandre, J P 1177775
De Freitas, M 1177176
De Freitas, M 1177226
De Freitas, M G 1177171
De Freitas, M G 1177214
De Freitas, M G 1177230
Dehghani, G A 1177188
Dehghanpour, H 1177712
Dejam, M 1177754
Dekeyzer, E 1177657
Delamaide, E 1177707
de la Parra, F 1177161
Delaplace, P 1177707
Del Carmen Morales, M 1177208
Delft Univ Technol 1177389*
Delft Univ Technol 1177390*
Delft Univ Technol 1177450*
Delft Univ Technol 1177490*
Delft Univ Technol 1177749*
Delgado Blanco, L A 1177186
Delhaye-Prat, V 1177519
Den Boestert, J 1177806
Denis, M 1177527
Denmark Greenland Geol Sur 1177142*
Denmark Greenland Geol Sur 1177196*
Depine, G 1177448
Derder, M E M 1177150
Deric, N 1177217
De Rouffignac, E 1177749
de Santa Ana, H 1177266
Desbois, G 1177246
Design & Assembly Inc 1177556*
de Souza, F G 1177140
De Souza, I A 1177296
De Souza, T 1177213
Desrues, K 1177436
Detring, J 1177517
Dev, A 1177513
De Vito, J 1177194
Diaz, L 1177180
Diaz, L 1177422
Diaz, M 1177395
Diaz, N 1177208
DiCarlo, D A 1177712
Dick, K 1177207
Dickson Int Geosciences 1177316*
Dickson, W 1177316
Diehl, F 1177643
Diehl, F 1177644
DiFoggio, R 1177573
DiGiovanni, A A 1177573
Dimitrov, P 1177492
Ding, X 1177151
Dino, R 1177791
Disalvo, A 1177124
Disalvo, A 1177215
Dixon, M 1177680
Djikpesse, H 1177496
Dodds, K 1177791
Dolphin Geophysical 1177454*
DONG Energy E&P 1177728*
Dong, H 1177466
Donglei, T 1177477
Dongo, C 1177491
Donias, M 1177475
Donskoi, S E 1177271
DORIS Engineering Ltd 1177763*
Do, V M 1177577
Draege, A 1177566
Draege, A 1177690
Drenzek, N 1177360
Driebeek, J 1177632
Drill Rigs Austral Pty Ltd 1177545*
Duan, L 1177473
Duarte, L M 1177166
Duarte, L M 1177419
Duarte, L V 1177216
Duarte-Vivas, A 1177310
Duddy, I R 1177196
Duddy, I R 1177222
Duenckel, R J 1177569
Duffaut, K 1177690
Duller, R 1177130
Duncan, G 1177791
Duque, H 1177175
Duque P, N 1177224
Duran Triana, O Y 1177268
Durden, M 1177813
Durham Univ 1177244*
Dursun, S 1177730
Durucan, S 1177775
Dusseault, M B 1177783
Dutra, T V Jr 1177745
Dutu, C 1177431
Du, X 1177372
Du, X 1177439
Du, X 1177676
Dykstra, M 1177141
Dzhalalov, K E 1177736
EAFIT Univ 1177158*
EAFIT Univ 1177175*
EAFIT Univ 1177181*
EAFIT Univ 1177494*
EagleRidge Operating LLC 1177368*
Eastep, D W 1177760
Eaton, E A 1177623
Ebaid, A 1177693
Ebbing, J 1177367
Ecopetrol 1177147*
Ecopetrol 1177195*
Ecopetrol 1177220*
Ecopetrol 1177371*
Ecopetrol 1177377*
Ecopetrol 1177381*
Ecopetrol 1177398*
Ecopetrol 1177401*
Ecopetrol 1177425*
Ecopetrol 1177447*
Ecopetrol 1177491*
Ecopetrol 1177494*
Ecopetrol-ICP 1177162*
Ecopetrol-ICP 1177228*
Ecopetrol-ICP 1177269*
Ecopetrol-ICP 1177376*
Ecopetrol-ICP 1177378*
Ecopetrol-ICP 1177379*
Ecopetrol-ICP 1177427*
Ecopetrol SA 1177146*
Ecopetrol SA 1177160*
Ecopetrol SA 1177210*
Ecopetrol SA 1177212*
Ecopetrol SA 1177224*
Ecopetrol SA 1177225*
Ecopetrol SA 1177233*
Ecopetrol SA 1177249*
Ecopetrol SA 1177250*
Ecopetrol SA 1177321*
Ecopetrol SA 1177327*
Ecopetrol SA 1177328*
Ecopetrol SA 1177373*
Ecopetrol SA 1177375*
Ecopetrol SA 1177385*
Ecopetrol SA 1177421*
Ecopetrol SA 1177423*
Ecopetrol SA 1177428*
Ecopetrol SA 1177445*
Ecopetrol SA 1177571*
Eder, L V 1177639
Eder, V G 1177356
Edinburgh Univ 1177366*
Edinburgh Univ 1177386*
Efnik, M S 1177722
Egerstroem, F 1177546
Egorov, A G 1177710
Ehrhardt, A 1177188
E I DuPont de Nemours & Co 1177632*
Eisner, L 1177410
Eisner, P 1177199
Eladj, S 1177283
Elboth, t 1177437
Elfeel, M O A 1177678
Eliassen, H 1177656
Elisheva, O V 1177289
Elkewidy, T I 1177267
Ellam, R 1177207
Elliott, G R D 1177770
El Montoya, D 1177394
El-Shahat, A 1177293
Emerald Energy plc 1177414*
EMGS Americas 1177438*
Empire Technol Develop LLC 1177803*
Enco-Energy 1177672*
Engelder, T 1177794
Engineering Seismology Grp 1177386*
Engineering Seismology Grp 1177468*
Englezos, P 1177675
Eni E&P 1177363*
ENS 1177182*
Entreprise Nat Geophysique 1177584*
Environment Canada 1177797*
EOS-DTH 1177269*
EOS-DTH Ltda 1177181*
Erdemir, C 1177513
Erlangen Nuremberg Univ 1177153*
Ernandez, J 1177704
Ernst, F 1177407
Ershova, V B 1177312
Escalante, C 1177518
Escalera-Alcocer, J A 1177241
Escobar, F 1177580
Espinasse, P 1177665
Esteban, J J 1177135
Esteves, C A 1177166
ETH Zurich 1177136*
ETH Zurich 1177349*
ETH Zurich 1177462*
ETH Zurich 1177502*
Etiope, G 1177358
Euzen, T 1177707
Evensen, G 1177762
EXGEO-CGG 1177208*
EXGEO-CGG 1177237*
Exner, U 1177318
Express Energy Svc Oper LP 1177587*
Eyuboglu, S 1177567
Fabre, G 1177512
Fabre, G 1177519
Fa, D 1177507
Fadul, J 1177592
Fainstein, R 1177191
FairfieldNodal 1177440*
Fajardo, A 1177214
Fajardo, G 1177383
Fajardo, G V 1177414
Faleide, J I 1177367
Falla, L 1177250
Fang, Y 1177530
Farouki, M 1177476
Farouq Ali, S 1177698
Farquharson, C 1177189
Fasnacht, T 1177424
Faure, M 1177200
Favereau, D A 1177632
Favero, C 1177595
Fawumi, T 1177502
Fed Inst Geosci Nat Rsces 1177334*
Fedorov, A V 1177628
Felix, K H 1177608
Feng, D 1177335
Feng, L 1177688
Ferber, R 1177499
Ferdelman, T G 1177792
Ferla, M 1177363
Fernandez, J 1177713
Fernando, M 1177211
Ferrer, J C 1177698
Fichler, C 1177332
Figueredo Baez, Y 1177481
Filimonova, I V 1177639
Fipke, S R 1177613
Flaig, P 1177120
Fletcher, R 1177496
Fletcher, R P 1177439
Fleure, T 1177472
Flint, S 1177295
Floodpage, J 1177137
Flores, C 1177603
Florez Anaya, A 1177167
Florez, J M 1177125
Florez, J M 1177194
Florez-Nino, J M 1177396
Flueh, E 1177367
Fogden, A 1177715
Folguera, A 1177254
Fomel, S 1177464
Fomin, A N 1177352
Fonseca, C 1177220
Fontana, P 1177526
Fontenot, W 1177562
Foo, L C 1177487
Foroozesh, J 1177673
Fortey, R A 1177258
Fortin, J 1177182
Fortunatova, N K 1177251
Foss, B 1177658
Fourneraut, M 1177657
Fournier, S W Jr 1177587
Fram, J H 1177738
Framo Engineering A/S 1177762*
Franco-Magalhaes, A O 1177296
Franques-Faixa, J 1177234
Frass, M 1177385
Frenkel, M A 1177438
Frenzel, S 1177663
Frerichs, J 1177334
Friedrich Schiller Univ 1177333*
Fripp, M 1177592
Frost, B R 1177168
Frost, B R 1177424
Fuenmayor, M 1177698
Fuentes, J 1177127
Fu, J 1177544
Fulton, C W 1177815
Fursenko, E A 1177355
Fusion Petroleum Technol 1177744*
Fustic, M 1177306
Gaillard, N 1177595
Gaillot, J 1177512
Galdiolo, G 1177590
Galicia-Barrios, J G 1177238
Galindo A, P A 1177417
Galindo, P 1177164
Galindo, P A 1177169
Gallo G, M 1177321
Galuev, V I 1177504
Galvis-Portilla, H A 1177229
Gamache, D E 1177810
Gambaretto, W 1177147
Gambaretto, W 1177580
Gamba Ruiz, N A 1177423
Gamboa, J F 1177445
Ganninger, M E 1177556
Gao, A 1177324
Gao, G 1177515
Gao, L 1177151
Gao, L 1177314
Gao, L 1177567
Gao, S 1177528
Gao, X 1177404
Garavito, F 1177421
Garay G, D 1177311
Garbowicz, A 1177748
Garcia B, D 1177321
Garcia Briceno, M E 1177252
Garcia, D 1177269
Garcia, D 1177327
Garcia, D 1177328
Garcia-Gonzalez, M 1177382
Garcia, J 1177220
Garcia, J 1177234
Garcia, J 1177600
Garcia, L 1177652
Garcia-Lasanta, C 1177297
Garcia Lugo, R 1177704
Garcia, P A 1177375
Garcia-Valles, M T 1177242
Garcia Yela, C C 1177178
Gardini, M 1177448
Garnica, M 1177249
Garnier, A 1177590
Garushev, A R 1177771
Garzon, H 1177383
Garzon, J C 1177159
Gaskin, K S 1177563
Gatta, R F 1177772
Gautheron, C 1177278
Gavotti, P 1177402
Gayno, R 1177723
GCS Argentina 1177176*
GEA Westfalia Separat GmbH 1177653*
Gee, D G 1177281
Geevarghese, A I 1177570
Geiger, S 1177403
Geiger, S 1177678
Geiger, S 1177720
Geiger, S 1177721
Geiger, S 1177724
Geiser, P A 1177594
Gelius, L J 1177435
Gelvez, J 1177212
GEMS 1177325*
GEMS Ltda 1177222*
GEMS Ltda 1177328*
Genedi, A 1177293
Geochemical Solutions Int 1177316*
GeoForschungsZentr Potsdam 1177182*
GeoForschungsZentr Potsdam 1177299*
GeoForschungsZentr Potsdam 1177774*
Geokinetics Int Inc 1177506*
GEOMAR 1177403*
GeoMark Research 1177316*
Geo-Microbial Technol SA 1177344*
Georgi, D T 1177573
Geoscience Australia 1177132*
Geotec Ltda 1177374*
GeoTomo 1177489*
Geotrace 1177383*
Geotrace Technologies 1177282*
Geotrack International 1177142*
Geotrack International 1177196*
Geotrack Int Pty Ltd 1177222*
Geo-X Exploration Svcs Inc 1177518*
Gerard, E 1177359
Gerard, E 1177773
GESSAL 1177234*
GE Water & Process Technol 1177809*
GFZ German Research Ctr 1177334*
GFZ German Research Ctr 1177775*
Ghedan, S G 1177711
Ghufaili, A 1177718
Giampaoli, P 1177279
Gibson, G 1177132
Gier, S 1177318
Giles, K A 1177240
Gil, J 1177744
Gil, W 1177214
Gil, W 1177234
Giprotyumenneftegaz 1177804*
Giprovostokneft 1177708*
Giraldo, L 1177376
Glasmacher, U A 1177296
Global Geophysical Svcs 1177472*
Global Geophys Svcs Inc 1177594*
Globe Inst Physique 1177184*
Globe Inst Physique 1177359*
Glori Energy Inc 1177743*
Glotov, V E 1177218
Glover, C 1177131
GMAS Ltda 1177418*
Goetz, A E 1177149
Gomes, J S 1177709
Gomez, F H 1177375
Gomez, H O 1177345
Gomez Rivarola, L 1177252
Gomez, Y 1177213
Gomez, Y 1177273
Goncalves, A 1177127
Gonzalez, A 1177170
Gonzalez B, M 1177311
Gonzalez Garcia, D P 1177655
Gonzalez, J J 1177560
Gonzalez, K 1177572
Gonzalez, K 1177746
Gonzalez, L 1177128
Gonzalez M, L 1177311
Gonzalez-Penagos, F 1177339
Gonzalez-Penagos, F 1177340
Goodrich, M 1177131
Gordon, J H 1177756
Gordon, S D 1177667
Goudemand, N 1177351
Goudy, C 1177172
Grabowski, K S 1177361
Graham, G S 1177757
Grammer, M 1177293
Gran Tierra Energy Inc 1177495*
Gran Tierra Energy Ltd 1177478*
Graterol, V 1177415
Gratien, J M 1177723
Grauel, A L 1177349
Grecula, M 1177260
Greene Tweed Delaware Inc 1177631*
Green, P F 1177142
Green, P F 1177196
Grenci, J J 1177760
Grigoriev, M N 1177271
Grinko, Yu V 1177589
Grion, S 1177454
Grizzly Geosciences 1177316*
Grolier, J P 1177684
Gromykin, S A 1177784
Gross, L 1177716
Grundy, A T 1177313
GSI 1177320*
Guan, Z 1177733
Guapp, R 1177333
Guarulhos Univ 1177296*
Gubanov, A 1177298
Gubkin Russian State Univ 1177583*
Gubkin Russian State Univ 1177765*
Gubkin State Oil Gas Univ 1177610*
Guerrero, C 1177420
Guerrero E, E 1177422
Guerrero, X 1177429
Guevara, S 1177378
Guevara, S 1177379
Guevara, S 1177428
Guevara, S 1177445
Guex, J 1177322
Guex, J 1177350
Guichet, X 1177339
Guichet, X 1177340
Guillaume, P 1177453
Guillocheau, F 1177253
Guillon, S 1177475
Guizhou Inst Geology 1177154*
Gulette, K 1177470
Gunnerud, V 1177658
Guo, Y 1177413
Guo, Y 1177733
Gurbuz, K 1177247
Gurses, S 1177605
Gustafson, R C 1177549
Gustafson, R C 1177555
Gust, T 1177564
Gutierez, G 1177401
Gutierrez, M 1177123
Gutierrez, M 1177234
Gutierrez, M A 1177384
Gutierrez, M A 1177416
Gutierrez S, A 1177478
Guzman, A E 1177239
Guzman, G 1177228
Guzman, O 1177395
Guzman, R 1177572
Gyorfi, I 1177170
Haavik, K 1177455
Habiger, R 1177486
Hackley, P C 1177317
Hackspacher, P C 1177296
Hadler-Jacobsen, F 1177141
Haghighi, M 1177676
Hahn, P 1177671
Hales, J 1177592
Hales, J H 1177623
Halliburton 1177447*
Halliburton 1177491*
Halliburton 1177599*
Halliburton 1177607*
Halliburton 1177613*
Halliburton 1177683*
Halliburton 1177730*
Halliburton 1177752*
Halliburton Energy Service 1177556*
Halliburton Energy Service 1177567*
Halliburton Energy Service 1177592*
Halliburton Energy Service 1177622*
Halliburton Energy Service 1177623*
Halliday, D F 1177446
Halliday, D F 1177502
Hallinan, S 1177406
Hall, J 1177188
Hamburg Univ 1177188*
Hamburg Univ 1177480*
Hamilton, D 1177208
Hamilton, K A 1177620
Hamza, V 1177143
Hancioglu, B 1177730
Han, J 1177511
Han, J F 1177516
Hansen, E W M 1177260
Han, W 1177443
Haralson, N S 1177809
Harkrider, J D 1177586
Harrick, B W 1177432
Harris, J P 1177131
Harrison, C B 1177400
Harris, R G 1177248
Hart, M B 1177185
Hart, W H 1177240
Harvard Univ 1177244*
Harzhauser, M 1177183
Hasan, A 1177658
Hassanzadeh, H 1177754
Hathcoat, J B 1177615
Hatscher, S 1177663
Haugvaldstad, K 1177538
Hauser, J 1177367
Hays, D 1177440
Hazboun, N K 1177572
Hearon, T E 1177240
Hebig, K 1177202
Hedden, R 1177697
Hegna, S 1177433
Heidelberg Univ 1177296*
Heins, W F 1177809
Hekelaar, S 1177609
Helmholtz Centre Potsdam 1177777*
Henan Inst Geol Survey 1177152*
Henderson, C M 1177156
Hennessey, N R 1177616
Henry, B 1177150
Henschel, R C 1177661
Heriot Watt Univ 1177673*
Heriot Watt Univ 1177678*
Heriot Watt Univ 1177720*
Heriot Watt Univ 1177721*
Heriot Watt Univ 1177724*
Hermann, L 1177380
Herman, P 1177592
Hermoza, W 1177121
Hermoza, W 1177123
Hermoza, W 1177234
Hermoza, W 1177342
Hernandez-Garcia, G 1177625
Hernandez, L 1177127
Hernandez, N 1177742
Hernandez, R 1177309
Hernandez Sanabria, E E 1177481
Hernandez, T 1177447
Herrera, J 1177165
Herrera, M 1177237
Herrera, R H 1177511
Herrmann, F J 1177465
Herten, U 1177323
Hess 1177266*
Heyl, C 1177562
Hidalgo, H 1177474
Higuera-Diaz, I C 1177229
Hill, T G Jr 1177661
Hilse, U 1177333
Hincapie, G 1177148
Hochard, C 1177261
Hochuli, P A 1177351
HOCOL 1177176*
HOCOL SA 1177212*
HOCOL SA 1177221*
HOCOL SA 1177226*
Hodgson, D 1177130
Hodgson, D 1177295
Hoffman, L 1177672
Ho, K H 1177487
Holmes, T L 1177816
Honisch, B 1177319
Hooghan, K 1177680
Hook, J 1177578
Hoover, G 1177472
Horman, S L 1177530
Hornbach, M J 1177403
Horn, F 1177457
Horn, S P 1177800
Horn, S P 1177801
Hosgormez, H 1177358
Hou, H 1177154
Houli, S 1177624
Hovland, M 1177332
Hovland, M 1177346
Hoye, T H 1177714
Huang, H 1177155
Huang, H 1177306
Huang, P P 1177587
Huang, T 1177602
Huang, Z 1177544
Hu, B 1177349
Hudock, J 1177120
Huebscher, C 1177188
Huerlimann, M D 1177231
Huerlimann, M D 1177577
Hughes, M J 1177484
Hugues, F 1177643
Hugues, F 1177644
Hu, J 1177464
Hujer, W 1177318
Hu, K 1177197
Humphrey, S 1177383
Hunan Bureau Geology 1177152*
Husain, R 1177205
Husain, R 1177206
Husmo, T 1177140
Husmo, T 1177141
Hussain, F 1177205
Hussain, F 1177206
Hydal, S 1177369
Hydril USA Mfg LLC 1177542*
Hydril USA Mfg LLC 1177549*
Hydril USA Mfg LLC 1177553*
Hydril USA Mfg LLC 1177555*
Hyman, R J 1177645
Iacob, C 1177431
Ibanez-Mejia, M 1177171
IBM Corp 1177785*
Icove, D J 1177800
Icove, D J 1177801
Idowu, N A 1177679
IFP Energies Nouvelles 1177182*
IFP Energies Nouvelles 1177643*
IFP Energies Nouvelles 1177644*
IFP Energies Nouvelles 1177707*
IFP Energies Nouvelles 1177723*
IFP Technol (Canada) Inc 1177707*
IGEM 1177218*
Ignatova, V A 1177192
IGS Services & Consulting 1177394*
IGS Services & Consulting 1177508*
Ikelle, L 1177462
IKM Subsea AS 1177819*
Illing, P 1177590
Imbert, P 1177519
Imbus, S 1177791
Imhof, M 1177492
Imperial Coll, London 1177459*
Imperial Coll, London 1177775*
Indiana Geological Survey 1177360*
Industrial Tech Res Inst 1177790*
InforPetrol 1177379*
InforPetrol Ltda 1177428*
InforPetrol SA 1177378*
Ingen GTL Ltd 1177645*
INGEOMINAS 1177177*
Ingham, J 1177677
Ingvarsdottir, A 1177808
Inigo, I 1177124
Innanen, K A 1177485
Innovative Petrotech Solut 1177685*
INOVA Geophysical Ltd 1177523*
Inst Colombiano Petroleo 1177268*
Inst Colombiano Petroleo 1177327*
Inst Colombiano Petroleo 1177371*
Inst Colombiano Petroleo 1177481*
Inst Francais du Petrole 1177159*
Inst Francais du Petrole 1177775*
Inst Mexicano Petroleo 1177684*
Inst Venezuela Invest Cien 1177395*
Int Res Inst Stavanger 1177808*
INVEMAR 1177228*
ION Geophysical Corp 1177513*
ION GX Technology 1177526*
IPGS-EOST 1177193*
Ireland, S 1177673
Iribarne, M 1177124
Isaac, H 1177400
Isaac, J H 1177402
Isaza-Londono, C 1177448
Isfahan Univ 1177764*
Ishiwata, J 1177574
Ishoey, T 1177743
Iskenova, G 1177399
Ismaili, I 1177468
Israel Geological Survey 1177232*
Israel Geological Survey 1177245*
Istanbul Univ 1177358*
Istituto Nazionale Geofis 1177358*
Ito, N 1177202
Ivanhoe Energy Inc 1177651*
Ivanov, M V 1177324
Iversen, I A 1177552
Ivison, J C 1177587
Iwano, H 1177337
Izotov, A A 1177705
Izquierdo-Llavall, E 1177297
Jackson, C A 1177130
Jackson, G 1177603
Jacome, J 1177211
Jahnke, D A 1177533
Jahnke, D A 1177534
Jahnke, D A 1177535
Jaimes, N 1177181
Jain, P 1177720
James, B 1177313
Jamiolahmadi, M 1177673
Janocko, M 1177140
Janocko, M 1177141
Japan Geological Survey 1177202*
Japan Mar Earth Sci Agency 1177574*
JAPEX Research Center 1177337*
Japsen, P 1177142
Japsen, P 1177196
Jaramillo, C 1177161
Jaramillo, J M 1177148
Jaramillo, J M 1177418
Jegen, M 1177188
Jelonek, I 1177292
Jensen, L A 1177172
Jensen, L J K 1177728
Jepp, B T 1177563
Jermannaud, P 1177253
Jessop, P G 1177805
Jiang, B 1177315
Jiang, X 1177209
Jiang, X D 1177404
Jiang, Z 1177515
Jiang, Z 1177678
Jianjun, X 1177477
Jilin Univ 1177372*
Jimenez, C 1177607
Jimenez, D M 1177163
Jimenez, G 1177221
Jin, X 1177155
Ji, Q 1177209
Ji, Y 1177467
Ji, Z 1177198
JJBM Properties LLC 1177586*
Johansen, K 1177728
Johari, A S M 1177579
John Nitschke Pty Ltd 1177547*
Johnson, K 1177486
Johnson, S 1177173
Jolivet, L 1177203
Jones, D 1177364
Jones, R 1177476
Jones, R 1177638
Jordan, J S 1177586
Joseph, D 1177508
Jouini, M S 1177709
Judd, C 1177413
Judge, R A 1177542
Juelich Research Ctr GmbH 1177323*
Juliao, T M 1177326
Kaas, I 1177714
Kahramanmaras Sutcu Univ 1177247*
Kairuz, E 1177249
Kaiser, J 1177318
Kalam, M Z 1177709
Kalam, Z 1177711
Kalinina, L M 1177353
Kalmykov, A V 1177710
Kandilarov, A 1177463
Kane, J 1177270
Kansas Univ 1177737*
Kantorovitch, A 1177232
Kaplan, S A 1177504
Karabelas, G 1177757
Kasanenkov, V A 1177286
Kasina, M 1177777
Kassam, A 1177468
Katz, B 1177671
Kaufhold, J P 1177492
Kaygorodov, S V 1177736
Kazakov, A A 1177263
Kazan State Univ 1177710*
Kean, A 1177199
Kedzior, S 1177292
Keele Univ 1177410*
Keller, H 1177671
Keller, P 1177797
Kendall, J M 1177386
Kendall, J M 1177387
Kendall, J M 1177520
Keogh, K 1177735
Kerans, C 1177309
Kertznus, V 1177172
Keyes, D E 1177725
Khabarov, E M 1177285
Khan, H 1177752
Kharrat, R 1177737
Kheraskova, T N 1177504
Khisamov, R S 1177702
Khlaifat, A 1177722
Khlebnikov, P A 1177274
Khokhar, R W 1177573
Khomutov, G B 1177654
Khudoley, A K 1177312
Kim, N S 1177330
Kinabo, B D 1177474
King Abdullah Univ 1177725*
King, J G 1177617
King, J S 1177782
Kizer Energy Inc 1177701*
Klaeschen, D 1177403
Klaucke, I 1177403
Klaver, J 1177246
Klein, R 1177671
Kleshchina, L N 1177204
Klimchenko, A A 1177610
Knabe, S 1177752
Knapp, J M 1177633
Knapp, J M 1177635
Kniffin, G M 1177586
Koch, C 1177331
Kock, D 1177334
Koksharov, Yu A 1177654
Kolganov, V I 1177708
Kombrink, H 1177692
Kommedal, J 1177470
Konovalov, A E 1177736
Kontorovach, A E 1177357
Kontorovich, A E 1177352
Kontorovich, V A 1177353
Kontorovich, V A 1177505
Kopecny, P 1177707
Korablinov, V E 1177583
Koren, Z 1177521
Korngreen, D 1177232
Korovnikov, I V 1177356
Korynta, G 1177649
Korzhubaev, A G 1177639
Koshka, E 1177651
Kostyreva, E A 1177352
Kottuthala, J S 1177729
Kovalev, A F 1177621
Kozlov, V I 1177308
Kraczynski, W 1177264
Kragh, E 1177502
Krasnobaev, A A 1177308
Krastel, S 1177304
Kravchenko, M N 1177276
Krishnamurthy, R 1177799
Krivitsky, A B 1177277
Krivoshey, A V 1177589
Krogstad, S 1177658
Kronimus, A 1177775
Krueger, M 1177334
Kruithoff, D M 1177786
Kubler, L 1177388
Kuczynski, J 1177785
Kuhach, J D 1177651
Kuhn, M 1177775
Kumar, A 1177438
Kumar, A 1177490
Kumar, S 1177487
Kumar, S 1177693
Kurschner, W M 1177351
Kurukchi, S A 1177642
Kusinski, G J 1177769
Kus, J 1177815
Kusznir, N 1177132
Kuwait Oil Co 1177693*
Laake, A 1177483
Labarre, X 1177503
La Dart, S 1177470
Ladenberger, A 1177281
Lagasse, N 1177739
Lalande, S 1177512
Lallier, F 1177692
Lambare, G 1177453
Lambert, L 1177197
Lamont Doherty Earth Obser 1177319*
Lamont Doherty Earth Obser 1177411*
Lamoureux, M 1177400
Landaeta, L 1177213
Landing, E 1177258
Landroe, M 1177455
Landro, M 1177362
Lane, W C 1177641
Lanzhou Inst Chem Physics 1177796*
Lapham, L 1177361
La Plata Museum 1177129*
Larionov, A 1177135
Larkin, V N 1177251
Larriestra, C N 1177345
Larriestra, F 1177345
Larsson, L 1177315
Larter, S 1177306
Lausanne Univ 1177322*
Lausanne Univ 1177350*
Lavado Quinones, R 1177167
Laverde, F 1177300
Laverde, F 1177301
Laverde, F 1177302
Lavialle, O 1177475
Lavignolle, G 1177763
Lawal, H 1177603
Law, D H S 1177677
Lawton, D C 1177402
Laya, A 1177138
Lazo, D G 1177129
Le Calvez, J H 1177368
Lecante, G 1177693
Ledo, J 1177189
Ledovskikh, A A 1177274
Leeds Univ 1177244*
Leeds Univ 1177510*
LeGleut, H 1177476
Leibniz Inst Appl Geophys 1177304*
Leibniz Inst Marine Sci 1177304*
Le Men, Y 1177503
Lemkau, K 1177798
Lenart, A 1177442
Leon, A 1177607
Lepage, F 1177399
Lepekhina, E N 1177308
Lesin, V I 1177654
Levet, A 1177758
Ley, R E 1177489
Liang, C 1177489
Liang, Y 1177291
Liaohe Oilfield 1177624*
Liaohe Oilfield 1177733*
Liaohe Oilfield Co 1177591*
Li, C 1177467
Lichnewsky, A 1177496
Li, D 1177413
Liegeois, J P 1177278
Li, E Y 1177792
Li, F 1177392
Lif, A I 1177819
Li, F Y 1177404
Li, G 1177291
Li, G 1177298
Li, G 1177544
Likhovol, G D 1177621
Li, L 1177341
Li, L 1177372
Lilja, D 1177437
Linares P, R 1177417
Linares, R 1177164
Lin, C K 1177790
Lindblade, S 1177562
Lindelow-Marsden, C C 1177728
Lindhom, P 1177438
Liner, C 1177524
Lin, H 1177152
Lin, L 1177651
Lin, W 1177197
Lin, W 1177200
Li, Q 1177157
Li, Q P 1177688
Li, S 1177198
Lithicon Norway AS 1177679*
Litt, T 1177304
Liu, B 1177688
Liu, D 1177198
Liu, J 1177291
Liu, J 1177343
Liu, J 1177473
Liu, L 1177725
Liu, P 1177151
Liu, P 1177314
Liu, X 1177153
Liu, Y 1177151
Liu, Y 1177209
Liu, Y 1177642
Liverpool Univ 1177132*
Li, X 1177366
Li, X 1177676
Li, Y 1177443
Li, Z 1177443
LKAB Wassara AB 1177546*
Lodzhevskaya, M I 1177276
Loftin, C 1177557
Loidl, B 1177257
Loktev, A V 1177662
Lomonosov Moscow St Univ 1177654*
Lomonosov Moscow St Univ 1177792*
London Museum 1177258*
Lonergan, L 1177169
Long, A S 1177476
Long, H 1177679
Lopez, G 1177233
Lopez, G 1177249
Lopez-Gamundi, O 1177266
Los Andes Univ 1177128*
Los Andes Univ 1177311*
Louisiana State Univ 1177335*
Lourenco, J 1177650
Lourens, L J 1177348
Lozano, A 1177165
Lozano G, E 1177147
Lucet, N 1177693
Luecke, A 1177323
Lukeneder, A 1177303
Lukeneder, A 1177336
Lukjanov, Yu V 1177696
LUKOIL Overseas 1177579*
Luna Osorio, J S 1177186
Lundin Malaysia BV 1177476*
Lundqvist, T 1177388
Luo, R 1177759
Luo, R 1177760
Lu, S 1177476
Luthje, M 1177728
Lu, W K 1177404
Macellari, C 1177121
Machado, P 1177572
Machala, A C 1177615
MacHlev, D 1177767
Ma, D S 1177750
Maersk Oil 1177482*
Maersk Oil Res Technol Ctr 1177715*
Ma, G 1177372
Mahecha, H 1177210
Mahmud, N 1177487
Mahrooqi, S 1177468
Maier, C 1177403
Maier, C 1177721
Main, I G 1177386
Majka, J 1177281
Makeiff, D A 1177789
Makhorin, M 1177526
Maldonado, H 1177401
Malizia, D 1177344
Mallinson, T J 1177531
Mallinson, T J 1177532
Malyshev, N A 1177204
Manatschal, G 1177193
Mandal, S 1177576
Mandal, S 1177577
Mandic, O 1177183
Mandroux, F 1177442
Manestar, G 1177252
Mangione, M T 1177569
Mann, G D 1177772
Manning, T 1177412
Mann, U 1177323
Mansoura Univ 1177293*
Mantilla, M 1177226
Mantovani, M 1177406
Mantovani, M 1177460
Mao, J 1177405
Maouche, S 1177150
Marathon GTF Technol Ltd 1177642*
Marcos, J 1177575
Marcussen, O 1177140
Marfisi, N 1177229
Marfissi, S 1177660
Marfurt, K 1177525
Margalit, M 1177803
Margrave, G 1177402
Margrave, G F 1177400
Marika, E 1177783
MARIN 1177797*
Marin, A 1177347
Marin, J P 1177148
Marin, M I 1177175
Marin, M P 1177229
Marin, W 1177508
Marion, M C 1177643
Marion, M C 1177644
Markley, M 1177580
Marques, F 1177360
Marquez, L 1177147
Marquez, L 1177580
Marquez, R 1177326
Marquez, X 1177715
Marti, A 1177189
Martinez Andrade, N M 1177377
Martinez, M 1177230
Martinez, M 1177420
Martinez, R 1177385
Martinez, R D 1177488
Martinez Uribe, L 1177147
Martinez Uribe, L 1177580
Martorano, P 1177704
Marui, A 1177202
Marval, P 1177607
Marx, B 1177208
Ma, S M 1177570
Mason, J P 1177772
Massacand, C 1177463
Massingill, G 1177120
Massonnat, G 1177689
Mastalerz, M 1177360
Mata, W 1177745
Mateo, P 1177137
Mateus, D 1177146
Mathews, W L 1177627
Mattocks, B 1177463
Mavromatis, V 1177359
Max Planck Inst 1177777*
Max Planck Inst 1177792*
Maya, L 1177300
Maya, L 1177301
Maya, L 1177302
Mayorga, M 1177223
Mayorga, M 1177325
Mayrhofer, S 1177303
Mazo, A B 1177710
Mazuera R, F 1177311
Ma, Z W 1177688
Mazyar, O A 1177630
Mazzotti, A 1177408
McCay, G 1177207
McFadzean, P J 1177449
McGrady, C 1177760
McGuire, B 1177585
McKay, T 1177715
McKenzie, J A 1177136
McMaster Univ 1177299*
McRoberts, C A 1177145
Mechie, J 1177188
Medina, E 1177426
Medvedev, D D 1177814
Medvedskiy, R I 1177705
Meilijson, A 1177232
Meister, P 1177777
Meister, P 1177792
Mejia, P 1177161
Melankholina, E N 1177255
Melenevsky, V N 1177352
Melenevsky, V N 1177356
Mendonca Filho, J G 1177216
Mendonca, J O 1177216
Mendoza, J 1177127
Mendoza, M 1177252
Menez, B 1177773
Mengus, J M 1177182
Meng, W 1177370
Menke, W 1177411
Mensch, T 1177397
Merkushina, G A 1177804
Mesa, A 1177176
Mesa, A M 1177230
Mesa Cardenas, A 1177580
Mesri, Y 1177723
Messina, N 1177541
Meunier, J 1177601
Mexico Nac Auton Univ 1177242*
Meyer, J H 1177817
Meyer, R E III 1177785
Meza, G 1177162
Meza, G D 1177225
MGX Octrooi BV 1177780*
Middlemiss, S N 1177558
Middlemiss, S N 1177559
Miess, D P 1177560
Mika, J 1177470
Mikhailov, V 1177184
Mikula, R J 1177770
Milan Univ 1177408*
Milkereit, B 1177430
M-I LLC 1177565*
Miller, J 1177672
Miller, M 1177650
Millis, K 1177391
Millis, K 1177518
Milroy, P 1177720
Milshtejn, L M 1177646
Minnich, K 1177810
Mirenda, M 1177541
Mirenda, M 1177568
Missenard, Y 1177278
Mitchell, C 1177132
Mitchell, G 1177497
Miyazaki, T 1177574
Mjelde, R 1177367
Mkrtchyan, O M 1177274
MNTK Topenergomashprom 1177646*
Mobeen Fatemi, S 1177737
Moga, N 1177431
Mogollon, L 1177146
Mogollon, L 1177328
Mohriak, W 1177191
Moinet, F 1177527
Moir, M 1177670
Moiseyev, S A 1177505
Mojica, J 1177158
Moldoveanu, N 1177496
Monash Univ 1177299*
Monash Univ 1177778*
Moncada, A 1177181
Mondragon, J C 1177159
Mondragon, J C 1177223
Monk, D 1177440
Monroe, D 1177248
Monsegny, J 1177181
Monsegny, J 1177427
Montel, J P 1177453
Montenegro, G 1177158
Montenegro, G 1177265
Montes, C 1177221
Montes, L 1177307
Montes, L 1177373
Montes, L 1177426
Montgomery, B 1177442
Montgomery, M 1177539
Montilla, L 1177347
Moodley, A 1177642
Moore, C 1177331
Moore, R 1177592
Moore, S R 1177561
Mora, A 1177171
Mora, A 1177171
Mora, A 1177210
Mora, A 1177212
Mora, A 1177230
Mora, A 1177494
Mora, C 1177158
Mora, C 1177175
Mora, C 1177325
Mora-Glukstad, M 1177173
Mora Hernandez, C A 1177222
Mora, J 1177522
Morales, D 1177213
Morales, M 1177445
Moreno, E 1177127
Moreno G, N 1177224
Moreno, N 1177146
Moreno, N 1177212
Moretti, I 1177159
Moretti, I 1177223
Moretti, I 1177305
Moretti, I 1177325
Moretti, I 1177339
Morice, M 1177137
Morillo, E G 1177606
Morley, G 1177636
Morley, L C 1177467
Morozova, D 1177774
Morozoval, D 1177334
Morse, M 1177132
Moscow State Univ 1177204*
Moscow State Univ 1177262*
Mosher, C C 1177467
Moskvin, V I 1177352
Mosquera, J 1177420
Mosquera, J C 1177166
Mosquera, J C 1177419
Mouthereau, F 1177201
Mubadala Petroleum 1177722*
Mueller, S 1177168
Mukhopadhyay, D 1177560
Mukund, S 1177482
Mulyono, R 1177206
Munnecke, A 1177153
Munoz, P 1177364
Munoz, V A 1177770
Murcia, A 1177249
Mus, E 1177575
Muzalevskaya, N V 1177272
MWJ LLC 1177812*
Myhre, E 1177819
Myhre, L P 1177346
Mykietiuk, K 1177252
Na, L 1177298
Nalcor Energy Oil & Gas 1177409*
Nalpas, T 1177253
Nanjing Inst Geol Palaeont 1177152*
Nanjing Inst Geol Palaeont 1177153*
Nanjing Inst Geol Palaeont 1177156*
Nanjing Inst Geol Palaeont 1177197*
Nanjing Inst Geol Palaeont 1177291*
Nanjing Inst Geol Palaeont 1177298*
Nanjing Inst Geol Palaeont 1177315*
Nanjing Univ 1177155*
Nankai Inst Technology 1177501*
Naranjo, M A 1177181
Naranjo V, J 1177224
Nardi, C 1177679
Nasretdinov, R G 1177696
Nassar, M 1177329
Natfrac 1177375*
National Chiayi Univ 1177501*
National Chung Cheng Univ 1177501*
National Oilwell Varco LP 1177533*
National Oilwell Varco LP 1177534*
National Oilwell Varco LP 1177535*
Natl Res Council (Canada) 1177789*
Natl Res Council (Italy) 1177349*
Natural Resources Canada 1177770*
Navarro, J 1177223
Nawratil, A 1177345
Nayak, G 1177132
Nazar, A R S 1177764
Necdet, M 1177207
Needoba, J 1177331
Neftegazdetal 1177610*
Nefyodov, N V 1177710
Nelson, R K 1177798
Nemeth, B 1177518
Neubauer, T 1177183
Newfoundland Memorial Univ 1177188*
Newfoundland Memorial Univ 1177189*
NEWJEC Inc 1177202*
Newman, R 1177677
New Mexico Univ 1177350*
Newton, B 1177680
New York State Museum 1177258*
Nguyen, T T 1177615
Niang, C 1177434
Niccolls, E H 1177769
Nieves, I 1177385
Nikiforav, A I 1177703
Nikishin, A M 1177204
Nikishin, V A 1177204
Nino, F 1177195
Nippon & Sumitomo Corp 1177761*
NIT Jamshedpur 1177695*
Nitschke, C 1177671
Nitschke, J 1177547
Nitschke, J 1177547
Niu, J 1177544
NIVA (Norway) 1177808*
Ni, Y 1177434
NOAA 1177324*
Norris, M 1177699
Norske Shell A/S 1177260*
Norway Geological Survey 1177281*
Norwegian State Oil Co 1177400*
Norwegian State Oil Co 1177462*
Norwegian Univ Sci Technol 1177362*
Norwegian Univ Sci Technol 1177455*
Norwegian Univ Sci Technol 1177466*
Norwegian Univ Sci Technol 1177658*
Novais, A 1177493
Novomlinova, E V 1177290
Noya, J 1177265
NPP Chorny Klyutch 1177710*
Nukhaev, M 1177734
Nunez, M 1177139
Nuovo Pignone SpA 1177629*
Nuovo Pignone SRL 1177766*
Nutley, B 1177597
Nutley, K 1177597
O3 Industries LLC 1177795*
Oballa, V 1177753
Obeida, T 1177727
Obmetko, V V 1177204
Observatoire Midi-Pyrenees 1177359*
Observatorio Nacional 1177143*
Ochoa Suarez, D M 1177550
Odegard, M 1177316
O'Dogherty, L 1177322
O'Donnell, T 1177531
O'Donnell, T 1177532
Oelkers, E 1177359
Oeren, P E 1177679
O'Halloran, A 1177270
O’Hara, P D 1177797
Ojeda, G 1177210
Ojeda, G 1177371
Ojeda, G 1177428
Ojeda, G Y 1177375
Oklahoma State Univ 1177293*
Oklahoma Univ 1177525*
O'Konek, D C Jr 1177795
O'Konek, D C Sr 1177795
O'Konek, M T 1177795
Oldenbrug, T 1177306
Oliveira, D 1177612
Oliveira, H J M 1177745
Omosanya, K 1177133
Omosanya, K O 1177134
OMV Austria 1177318*
OMV Explor & Prod GmbH 1177366*
OptiSeis Solutions Ltd 1177391*
OptiSeis Solutions Ltd 1177518*
Ordonez, M 1177265
Orejuela, C 1177328
Orji, O C 1177435
Orleans Univ 1177200*
Orleans Univ 1177203*
Ormat Technologies Inc 1177767*
Orodu, O D 1177750
Orrico, C 1177331
Ortega, R 1177265
Ortet, S 1177693
Ortigosa, F 1177364
Ortiz, A 1177162
Ortiz, A 1177225
Ortiz, A 1177228
Ortiz, A 1177420
Ortiz, J 1177380
Ortiz, S 1177148
Oslo Univ 1177367*
Oslo Univ 1177435*
Ossmer, U 1177663
Ostmo, S 1177449
Ostvedt-Ghazi, A M 1177438
Osuna, C 1177660
Osypov, K 1177444
O'Toole, T 1177520
Otto, C 1177791
Ouabadi, A 1177278
Ouabed, N 1177584
Ouadfeul, S A 1177283
Ovalles, C 1177670
Overstreet, C C 1177604
Ownby, C A 1177556
Oxford Univ 1177520*
Pacific Rubiales Energy 1177273*
Pacific Rubiales Energy 1177486*
Paduret, M 1177431
Paez, M 1177161
Pagels, M 1177360
Paillet, J 1177463
Pais Vasco Univ 1177135*
Pamplona Univ 1177398*
Pandher, D S 1177552
Pan, Y 1177315
Papenberg, C 1177403
Paradigm Geophysical 1177521*
Pardo, A 1177148
Pardo, A 1177161
Pardo, A 1177165
Parfenova, T M 1177356
Paris Museum 1177350*
Paris Sud XI Univ 1177278*
Parkes, G E 1177433
Parma Univ 1177144*
Parra Mantilla, P 1177222
Parravano, V 1177208
Parsons Brinckerhoff 1177603*
Passos Giraldo, S 1177170
Patino, E 1177127
Patino Gomez, M A 1177225
Patino, J 1177701
Patino, M A 1177225
Pauley, J C 1177668
Paulista State Univ 1177296*
Paull, C K 1177361
Pavel, S K 1177651
Pavia, M R 1177743
Pavlov, Yu V 1177804
Payen, T 1177436
Payen, T 1177503
Paz, H 1177248
PDVSA CVP 1177704*
PDVSA Intevep 1177596*
PDVSA Intevep 1177612*
PDVSA Intevep 1177618*
PDVSA Petrodelta 1177744*
Peacock, E E 1177798
Pearce, A 1177677
Pedenaud, P 1177810
Pedraza, C 1177522
Pegau, S 1177331
Peithe, R D 1177215
Peking Univ 1177291*
Pelot, R 1177797
PEMEX Explor & Prod 1177625*
Peng, S 1177152
Pennsylvania State Univ 1177341*
Penuela, G 1177164
Peralta, J 1177429
Peralta-Vargas, J 1177147
Peralta-Vargas, J 1177580
Pereira, C 1177248
Perekupka, A G 1177804
Perera, M S A 1177778
Perez Carillo, E R 1177326
Perez, R 1177744
Perry Equipment Corp 1177816*
Perschke, T 1177653
Persoglia, S 1177775
Pervukhina, N V 1177284
Petersilie, V I 1177274
Petersilie, V I 1177276
Petersilie, V I 1177277
Peterson, S B 1177560
Petrobras America Inc 1177300*
Petrobras America Inc 1177301*
Petrobras America Inc 1177302*
Petrobras Energia SA 1177301*
Petrobras Energia SA 1177302*
Petrocedeno 1177714*
PetroChina Research Inst 1177750*
Petroleo Brasileiro SA 1177166*
Petroleo Brasileiro SA 1177419*
Petroleo Brasileiro SA 1177425*
Petroleo Brasileiro SA 1177658*
Petroleos Venezuela SA 1177127*
Petroleos Venezuela SA 1177138*
Petroleos Venezuela SA 1177139*
Petroleos Venezuela SA 1177208*
Petroleos Venezuela SA 1177237*
Petroleos Venezuela SA 1177265*
Petroleos Venezuela SA 1177347*
Petroleos Venezuela SA 1177572*
Petroleos Venezuela SA 1177575*
Petroleos Venezuela SA 1177600*
Petroleos Venezuela SA 1177607*
Petroleos Venezuela SA 1177612*
Petroleos Venezuela SA 1177652*
Petroleos Venezuela SA 1177660*
Petroleos Venezuela SA 1177701*
Petroleos Venezuela SA 1177713*
Petroleos Venezuela SA 1177742*
Petroleum Development Oman 1177468*
Petroleum Develop Oman LLC 1177718*
Petroleum Geo-Services 1177393*
Petroleum Geo-Services 1177476*
Petroleum Geo-Services 1177479*
Petroleum Geo-Services 1177488*
Petrol Univ Technol (Iran) 1177737*
Petronas Carigali Sdn Bhd 1177487*
Petronas Carigali Sdn Bhd 1177579*
Petroproduccion 1177265*
PETROSEIS Ltda 1177522*
Petrospec Engineering Ltd 1177701*
Petrotrin 1177461*
Petrotrin 1177508*
Petrotrin Trinmar 1177508*
Petrowell Ltd 1177619*
PGS 1177362*
PGS 1177435*
PGS Geophysical AS 1177432*
PGS Geophysical AS 1177433*
PGS Geophysical AS 1177498*
Pham, T 1177438
Phan, H 1177611
Philippe, Y 1177137
Phillips, T F 1177523
PhotoSat 1177497*
Piedrahita, C 1177378
Piedrahita, C 1177427
Piedrahita, C 1177445
Piedrahita, C C 1177268
Piedrahita, C C 1177269
Piedrahita, J 1177385
Pierre & Marie Curie Univ 1177201*
Pietrobon, M 1177627
Pimentel Trujillo, C A 1177222
Pineda, C 1177376
Pineda, E 1177146
Pinna, R 1177278
Pinto, J 1177220
Pisa Univ 1177408*
Pisklak, T J 1177606
Pivot, F 1177691
Pjankova, E M 1177686
Plata, M 1177376
Pless, G 1177449
Pliego Vidal, E 1177172
Plisov, S F 1177285
Plymouth Univ 1177185*
Podshuveyt, N 1177526
Pohlman, J W 1177361
Pokrovsky, O 1177359
Pokrovsky, O 1177773
Polarcus 1177526*
Polish Academy Sciences 1177684*
Pollatos, J 1177454
Polyansky, D V 1177804
Pomerantz, A E 1177593
Pomerantz, A E 1177681
Pomerantz, A E 1177687
Pons, A 1177182
Popa, C 1177137
Popov, A Yu 1177285
Popov, A Yu 1177286
Poroskun, V I 1177275
Porras, A R 1177160
Portillo, F 1177273
Posada, C 1177250
Potsdam Univ 1177247*
Potter, D 1177507
Poulet, T 1177716
Poulton, S W 1177244
Powell, B 1177592
Pozo, G 1177300
Pozo, G 1177301
Pozo, G 1177302
Pradalie, F 1177527
Prad Res & Develop Ltd 1177582*
Prad Res & Develop Ltd 1177593*
Prad Res & Develop Ltd 1177681*
Prad Res & Develop Ltd 1177687*
Prad Res & Develop Ltd 1177817*
Prakash, A 1177205
Prescott, A 1177453
Prestia, G 1177344
Preston, C 1177199
Price Hoelscher, B K 1177565
Price, S 1177260
Prieto, C A 1177633
Prieto, M I 1177418
Primepoint Pte Ltd 1177552*
Princeton Univ 1177350*
Prioul, R C A 1177593
Proett, M A 1177567
Prokopiev, A V 1177312
Prol-Ledesma, R M 1177242
Prospectiuni SA 1177431*
Puchiano, S 1177636
Puchkov, V N 1177308
Pudlo, D 1177333
Pullins, R N 1177587
Purkis, D G 1177619
Purwar, S 1177730
Pushcharovsky, Yu M 1177256
Puustelli, J 1177818
Qeye Labs 1177457*
Qi, Y 1177197
Queensland Univ 1177716*
Queen's Univ, Kingston 1177805*
Queralt, P 1177189
Quezada, A 1177652
Quijada, W 1177612
Quintero V, N E 1177269
Quintero, W 1177177
Qu, Q 1177606
Qutob, H H 1177722
Rabie, A 1177205
Rabie, A 1177206
Radeff, G 1177247
Raffi, I 1177207
Ragab, M 1177726
Ragazzi, M D 1177215
RA Geologia 1177163*
RA Geologia EU 1177227*
RA Geologia EU 1177259*
RA Geologia EU 1177338*
Rageot, O 1177665
Rahmouni, N 1177682
Raillard, S 1177253
Rains, J P 1177587
Raitzsch, M 1177319
Ramalho, F O 1177140
Rambold, P 1177248
Ramirez, L 1177139
Ramirez Q, C 1177478
Ramirez, R 1177237
Ramirez, R 1177425
Ramirez, V 1177420
Ramirez, V 1177491
Ramli, A 1177718
Ramon, J C 1177414
Ramos, M 1177208
Randzio, S 1177684
Ranjan, P 1177752
Ranjith, P G 1177778
Raugei, L 1177766
Rauseo, O 1177596
Ravve, I 1177521
Raynal, J A 1177557
Razuvaeva, O V 1177272
Rebel, E 1177601
Reddy, C M 1177798
Red, S 1177619
Regel, B 1177474
Reina, C 1177213
Reinante, S 1177280
Reinier, M 1177453
Renard, G 1177707
Ren, G 1177685
Rennes I Univ 1177142*
Rennes I Univ 1177201*
Rennes Univ 1177253*
Repol, D 1177448
Repsol 1177199*
Repsol 1177254*
Repsol 1177364*
Repsol 1177704*
Repsol Exploracion 1177121*
Repsol Exploracion 1177234*
Repsol Exploracion 1177342*
Repsol Peru 1177364*
Repsol YPF 1177280*
Republica Univ 1177266*
Res Inst Petrol Explor Dev 1177153*
Restrepo-Correa, I C 1177158
Restrepo-Correa, I C 1177375
Restrepo, I C 1177175
Restrepo, J 1177148
Restrepo, J C 1177380
Reveillere, A 1177793
Reverol, H 1177600
Rey, C A 1177415
Rey, C A 1177422
Rey, C A 1177506
Reyes, L 1177228
Reyna, M 1177596
Ribeiro, N P 1177216
Rice Univ 1177730*
Ricois, O 1177723
Rico, J 1177221
Riddalls, N 1177454
Riedel, M 1177361
Riedman, L A 1177314
Rieger, R 1177671
Rikoski, R J 1177514
Riley, S 1177570
Riller, U 1177299
Rincon, C 1177385
Ringgenberg, P 1177592
Rintala, T 1177818
Rintjani, E 1177123
Rio de Janeiro Fed Univ 1177216*
Rio de Janeiro Fed Univ 1177269*
Rio Grande Norte Fed Univ 1177144*
Rio Grande Norte Fed Univ 1177745*
Ritzmann, O 1177367
Rivero, J A 1177677
RMSpumptools Ltd 1177667*
RN Shelf Far East LLC 1177784*
Roberts, H H 1177335
Robertson, A 1177207
Robertson, A 1177217
Robertsson, J O A 1177462
Robertsson, J O A 1177502
Robin, C 1177253
Robinson, P 1177281
Rock Tech Inc 1177672*
Rodgers, J P 1177623
Rodrigues, M A F 1177745
Rodriguez, E 1177713
Rodriguez, G 1177223
Rodriguez, G 1177325
Rodriguez, G 1177383
Rodriguez, H 1177382
Rodriguez, J 1177273
Rodriguez, J 1177600
Rodriguez, J A 1177187
Rodriguez, V 1177148
Roehl, U 1177190
Rogel, E 1177670
Roger, G 1177463
Roggero, F 1177707
Rojas, C 1177572
Rojas, H 1177127
Rojas, L E 1177445
Rojas, N A 1177375
Rokkan, A 1177463
Roma III Univ 1177144*
Roma III Univ 1177247*
Romanenko, S V 1177610
Roman, L 1177672
Romero, M 1177161
Ronen, S 1177463
Roohi, G 1177351
Rooney, A D 1177244
Rosanova, G N 1177275
Rosero, A 1177221
Rosneft NK 1177204*
Rosneft NK-NTC LLC 1177771*
Rosneft Scientific Ctr 1177736*
Ross, A 1177471
Rossello, E A 1177266
Ross, L 1177518
Ross, R 1177509
Rouby, D 1177253
Rouchon, V 1177340
Rougier, S 1177278
Rovetta, D 1177489
Rowan, M G 1177240
Royal Netherlands Inst 1177348*
Rubiano, J L 1177375
Rubiano Ortiz, J L 1177160
Rubiano Ortiz, J L 1177423
Rubiano Ortiz, J L 1177571
Ruby, M A 1177760
Rudd, N 1177131
Rudenko, D 1177734
Rudyk, S 1177674
Rueda Camacho, O P 1177719
Rueda, D 1177371
Ruelland, P 1177581
Ruggero, J M Jr 1177772
Ruiz, C 1177146
Ruiz-Graham, C 1177420
Ruiz, J 1177171
Ruiz, J 1177746
Rumbaugh, M R 1177633
Russian Academy Sciences 1177184*
Russian Academy Sciences 1177255*
Russian Academy Sciences 1177256*
Russian Academy Sciences 1177312*
Russian Academy Sciences 1177324*
Russian Academy Sciences 1177504*
Russian Academy Sciences 1177639*
Russian Academy Sciences 1177654*
Russian Academy Sciences 1177703*
Russian Academy Sciences 1177773*
Russian Fed Min Nat Rsces 1177271*
Russian State Univ 1177262*
Rutledge, J T 1177386
Ruttley, D J 1177614
RWE Dea AG 1177774*
RWTH Aachen 1177246*
Ryder, R T 1177317
Ryzhkova, S V 1177287
Saad, A R 1177296
Saavedra, A 1177401
Saavedra, C 1177250
Saavedra, L M 1177401
Sablon, R 1177436
Sablon, R 1177503
Sacchi, M D 1177441
Sadovnik, P V 1177274
Sahai, V 1177603
Saint-Marc, J 1177590
Sakhalinmorneft Inst 1177204*
Salaun, N 1177503
Salehikhoo, F 1177341
Salikhov, M R 1177696
Salinas, A 1177280
Salomon, M 1177237
Sampaio, R 1177140
Samsung Heavy Ind Co Ltd 1177647*
Sanabria, M 1177744
Sanchez, A 1177127
Sanchez, F 1177447
Sanchez-Ferrer, F 1177172
Sanchez, G 1177127
Sanchez, J 1177713
Sanchez, M J 1177812
Sanchez, W D 1177812
Sandoval Curiel, E 1177489
Sandoval, J 1177220
Sandoval Ruiz, J R 1177423
Sangita 1177695
Santafe, E 1177235
Santafe Rangel, E R 1177236
Santafe Rangel, E R 1177268
Santafe Rangel, E R 1177269
Santafe Rangel, E R 1177550
Santander Industrial Univ 1177162*
Santander Industrial Univ 1177178*
Santander Industrial Univ 1177181*
Santander Industrial Univ 1177211*
Santander Industrial Univ 1177220*
Santander Industrial Univ 1177222*
Santander Industrial Univ 1177228*
Santander Industrial Univ 1177235*
Santander Industrial Univ 1177236*
Santander Industrial Univ 1177294*
Santander Industrial Univ 1177371*
Santander Industrial Univ 1177376*
Santander Industrial Univ 1177377*
Santander Industrial Univ 1177398*
Santander Industrial Univ 1177550*
Santander Industrial Univ 1177655*
Santander Industrial Univ 1177719*
Sant'Anna, L G 1177142
Santiago, N 1177237
Sao Paulo Univ 1177142*
Sapheco LLC 1177551*
Saputelli, L 1177752
Sarvarov, A R 1177662
Saudi Arabian Oil Co 1177540*
Saudi Arabian Oil Co 1177554*
Saudi Arabian Oil Co 1177700*
Saudi Aramco 1177489*
Saudi Aramco 1177570*
Saudi Aramco 1177726*
Saudi Aramco 1177751*
Sauvage, P 1177763
Sayenko, L S 1177286
Schabron, J F 1177670
Schaltegger, U 1177322
Schaltegger, U 1177350
Scheytt, T 1177202
Schiefelbein, C 1177316
Schiefelbein, C 1177320
Schildbach, D 1177608
Schildgen, T F 1177247
Schleicher, J 1177493
Schlumberger 1177147*
Schlumberger 1177300*
Schlumberger 1177301*
Schlumberger 1177302*
Schlumberger 1177368*
Schlumberger 1177386*
Schlumberger 1177399*
Schlumberger 1177429*
Schlumberger 1177456*
Schlumberger 1177461*
Schlumberger 1177572*
Schlumberger 1177580*
Schlumberger 1177605*
Schlumberger 1177620*
Schlumberger 1177659*
Schlumberger 1177677*
Schlumberger 1177682*
Schlumberger 1177699*
Schlumberger 1177729*
Schlumberger 1177734*
Schlumberger 1177746*
Schlumberger Canada Ltd 1177582*
Schlumberger Canada Ltd 1177593*
Schlumberger Canada Ltd 1177681*
Schlumberger Canada Ltd 1177687*
Schlumberger Canada Ltd 1177817*
Schlumberger DCS 1177195*
Schlumberger Doll Research 1177231*
Schlumberger Doll Research 1177360*
Schlumberger Doll Research 1177496*
Schlumberger Gould Res 1177368*
Schlumberger Gould Res 1177446*
Schlumberger Gould Res 1177502*
Schlumberger Holdings Ltd 1177582*
Schlumberger Holdings Ltd 1177593*
Schlumberger Holdings Ltd 1177681*
Schlumberger Holdings Ltd 1177687*
Schlumberger Holdings Ltd 1177817*
Schlumberger Innovat Ctr 1177360*
Schlumberger Serv Petrol 1177582*
Schlumberger Serv Petrol 1177593*
Schlumberger Serv Petrol 1177681*
Schlumberger Serv Petrol 1177687*
Schlumberger Serv Petrol 1177817*
Schlumberger Technol BV 1177582*
Schlumberger Technol BV 1177593*
Schlumberger Technol BV 1177681*
Schlumberger Technol BV 1177687*
Schlumberger Technol BV 1177817*
Schlumberger Technol Corp 1177582*
Schlumberger Technol Corp 1177593*
Schlumberger Technol Corp 1177611*
Schlumberger Technol Corp 1177681*
Schlumberger Technol Corp 1177687*
Schlumberger Technol Corp 1177755*
Schlumberger Technol Corp 1177817*
Schmidt, I 1177482
Schmid, T W 1177349
Schneebeli-Hermann, E 1177351
Schneider, J H 1177788
Schneider, J M 1177788
Schneider, M J 1177669
Schoene, B 1177322
Schoene, B 1177350
Schoener-Scott, M 1177607
Schrank, C 1177299
Schroeder, C 1177590
Schroeder-Grimonpont, T 1177671
Schultz, R 1177599
Schwartz, A 1177680
Scott, D E 1177573
Scott, G R 1177694
Scott, G R 1177717
Scott, G R 1177740
Scott, G R 1177741
Scott, G R 1177747
Seabed Geosolutions 1177463*
Sedgeman, R D J 1177536
Sedova, A 1177397
Seismik 1177410*
Selby, D 1177244
Senergy (GB) Ltd 1177722*
Seo, M 1177761
Sergeeva, N D 1177308
Sergeev, S 1177135
Serna, L 1177230
Serra-Sogas, N 1177797
Severo-Zapad 1177504*
Shah, V 1177553
Sha, J 1177315
Shakirova, R T 1177272
Shakirov, R A 1177621
Shannon, A 1177668
Shaqlouf, H 1177729
Sharef El-Din, S 1177329
Sharif Univ Technology 1177737*
Sharma, R V 1177695
Sheldon, H A 1177716
Shell 1177234*
Shell Exploration & Prod 1177507*
Shell Explor & Prod BV 1177270*
Shell Explor & Prod Co 1177748*
Shell Global Solutions Int 1177526*
Shell Int Explor & Prod 1177749*
Shell Int Explor & Prod BV 1177407*
Shell Int Explor & Prod BV 1177507*
Shell Int Explor & Prod Co 1177270*
Shell Int Explor Prod Inc 1177507*
Shell Oil 1177260*
Shell Oil Co 1177697*
Shell Oil Co 1177806*
Shell Venezuela SA 1177748*
Shemin, G G 1177284
Shen, H 1177437
Shen, S 1177156
Sherief, M 1177683
Sherwood, K 1177488
Shevtsova, M I 1177276
Shi, H 1177544
Shinmoto, Y 1177574
Shirokova, L 1177359
Shirokova, L 1177773
Shi, Y 1177155
Shuvalov, A V 1177696
Shvets-Teneta-Gury, A G 1177251
Sidorov, A A 1177218
Siemens AG 1177532*
Siemens Corp 1177531*
Sierra, D 1177221
Sierra, D 1177230
Sierra, J 1177394
Sierra, J 1177508
Siewert, A 1177400
Silesia Univ 1177264*
Silesia Univ 1177292*
Siliqi, R 1177436
Siliqi, R 1177503
Silva, R L 1177216
Silva, T F 1177216
Silvchenko, A F 1177702
Simon Bolivar Univ 1177395*
Simplex Manufacturing Co 1177786*
Simpson, S L C 1177636
Sims, J C 1177738
Singh, P 1177206
Sinha, M K 1177695
Sinopec 1177672*
SINTEF 1177658*
Sipila, A 1177768
Skuzovatov, M Yu 1177505
Slasor, L 1177331
Sledina, A S 1177505
Smart, E 1177680
Smart, H 1177636
Smart Stabilizer Syst Ltd 1177536*
Smit, F 1177526
Smith International Inc 1177530*
Smith International Inc 1177538*
Smith International Inc 1177558*
Smith International Inc 1177559*
Smith International Inc 1177609*
Smith, J C 1177587
Smith, R 1177799
Smithsonian Tropical Inst 1177161*
Smits, J J T 1177806
Soendoro, F H 1177682
SOFEC Inc 1177562*
Sogaard, E 1177674
Sohrabi, M 1177673
Sokolova, I A 1177639
Solano S, F 1177478
Solling, T 1177715
Sollner, W 1177435
Solodovnikov, A Yu 1177807
Soloviev, B A 1177274
Solvay Special Polymer SpA 1177541*
Solvay Special Polymer SpA 1177568*
Solvoll, T A 1177598
Song, B 1177151
Song, Y Q 1177576
Song, Y Q 1177577
Song, Z 1177343
Soromotin, A M 1177807
Soto, R 1177297
Soto, S 1177607
Sotskiy, S 1177531
Sotskiy, S 1177532
Soubaras, R 1177500
Souche, L 1177399
Spangenberg, J 1177322
Spangenberg, J 1177350
SPCM SA 1177595*
Spectraseis 1177486*
Spence, G D 1177361
Spirov, P 1177674
Spring Energy AS 1177457*
Spychala, Y 1177130
Srivastava, P 1177732
Stacey, A 1177132
Stampfli, G M 1177261
Stanbrook, D 1177482
Stanchits, S 1177182
Starobinets, A E 1177277
Stashok, Yu I 1177736
Statoil ASA 1177332*
Statoil ASA 1177346*
Statoil ASA 1177449*
Statoil ASA 1177735*
StatoilHydro 1177656*
StatoilHydro ASA 1177783*
StatoilHydro Canada 1177598*
StatoilHydro Canada Ltd 1177815*
Statoil Petroleum AS 1177566*
Statoil Petroleum AS 1177690*
Statoil Petroleum AS 1177779*
Statoil Research Centre 1177367*
Stavanger Univ 1177456*
Steele, R 1177720
Stefan, B J 1177732
Stein, J A 1177383
Stenzel, A 1177432
Stepp, M 1177608
STF PerfoTech 1177621*
Stichting Polymer Inst 1177706*
Stinger Well Protect Inc 1177585*
Stockman, G 1177773
Stoesz, C W 1177634
Stokes, J 1177368
Stokkendal, J 1177728
Storti, F 1177144
St Peter, D 1177526
St Petersburg State Univ 1177312*
Street, E 1177248
Strelchenko, V V 1177262
Strelchenko, V V 1177583
Strobbia, C 1177451
Stucchi, E 1177408
Stukan, M 1177755
Stupakova, A V 1177262
Styles, P 1177410
Suarez Landazabal, D E 1177187
Suarez L, D 1177146
Sublette, V 1177472
Sud-Chemie Inc 1177649*
Su, H 1177515
Suh, S 1177405
Sulejmanov, A A 1177696
Sun, C Y 1177688
Sunde, E 1177743
Sun, J 1177413
Sun, L C 1177501
Sun, L F 1177430
Sun, S 1177725
Sun, S 1177733
Sun, S Z 1177370
Sun, X 1177370
SUNY, Cortland 1177145*
Sun, Z D 1177516
Suojanen, R A 1177768
Surgutneftegaz 1177621*
SurgutNIPIneft 1177807*
Sushchevskaya, N M 1177255
Suter, A 1177147
Suter, A 1177580
Sutra, E 1177193
Suutari, J 1177818
Svay, J 1177397
Svay, J 1177434
Svedlund, J O 1177388
SVKNII 1177218*
Sweden Geological Survey 1177388*
Swedish Museum 1177281*
Swelltec Ltd 1177597*
Swiss Federal Inst Technol 1177798*
Sykes, G H 1177498
Sykes, M A 1177313
Taborda, M A P 1177168
Tachet, E 1177735
Taherian, R 1177582
Takhautdinov, Sh F 1177702
Tandberg, A H 1177808
Tang, F 1177314
Tank, K 1177543
Tarim Oilfield Ltd 1177516*
Tash, K 1177207
Tatneft 1177702*
TatNIPIneft 1177272*
TatRITEKneft 1177710*
Tauler, E 1177242
Tavares, D 1177596
Taylor, D 1177322
TEA Sistemi SpA 1177648*
Tebay, D 1177664
Technip France 1177665*
Technip France 1177758*
Teck, L C 1177487
Teixeira, A 1177658
Tejas Research & Eng LLC 1177661*
Temizel, C 1177730
Tenn Univ Res Foundation 1177800*
Tenn Univ Res Foundation 1177801*
Teran Ortegon, L R D 1177729
Terralog Technologies Inc 1177783*
Texas Univ, Austin 1177464*
Texas Univ, Austin 1177712*
Texas Univ, San Antonio 1177197*
Tham, M 1177487
The Petroleum Inst 1177709*
Thompson, A 1177252
Thore, P 1177458
Thrustmaster of Texas Inc 1177561*
Thurber, M 1177495
Thybo, H 1177257
Thybo, H 1177367
Tian, G 1177437
Tian, J 1177516
Tian, S 1177544
Ticona LLC 1177759*
Ticona LLC 1177760*
Timoshina, I D 1177357
Timoshkina, E 1177184
Ting, C O 1177442
TNK-Nizhnevartovsk 1177662*
Tobar-Cock, D 1177374
Tocco, R 1177342
Tofil, T J 1177785
Tognarelli, L 1177629
Toivonen, O 1177818
Tokarev, A P 1177686
Toledo, M 1177420
Toledo, M A 1177419
TomskNIPIneft VNK 1177290*
Tonchia, H 1177503
Tong, J 1177126
Tongji Univ 1177324*
Tongji Univ 1177528*
Tong, Y 1177157
Tonita, L 1177431
Toro, E 1177425
Toronto Univ 1177430*
Torres, E 1177382
Torres, G A 1177380
Torres, K 1177300
Torres, K 1177301
Torres, K 1177302
Torres, V 1177210
Torsivk, T 1177743
Total 1177581*
Total 1177810*
Total E&P UK 1177692*
Total E&P UK Ltd 1177458*
Total France 1177253*
Total SA 1177590*
Total SA 1177657*
Total SA 1177689*
Total SA 1177691*
Total SA 1177739*
Totterdell, J 1177132
Toulouse Univ 1177773*
Tovar, D 1177175
Tovar, G 1177237
Townsend, P H 1177569
Transportadora Gas Sur 1177405*
Tran, T S 1177749
Trimble, C 1177557
Trippi, M H 1177317
Trivic, B 1177217
Truempy, D 1177748
Tsinghua Univ 1177404*
Tubia, J M 1177135
Turbeville, W 1177649
Twardowski, M 1177331
Tyagi, Y R 1177780
Tyumen State Oil Gas Univ 1177686*
Tyumen State Oil Gas Univ 1177705*
Ufa Scientific Center 1177308*
UIS-ICP 1177376*
Ukaegbu, O 1177726
Uljanov, N E 1177621
Ulterra Drilling Technl LP 1177537*
Uppsala Univ 1177281*
Urai, J 1177246
Urbancic, T 1177468
Urdaneta, R 1177713
Uriansrud, F 1177783
Uribe, J 1177364
Urien & Associates 1177316*
Urien & Associates 1177320*
Urien, C 1177316
Urien, C 1177320
ur-Rehman, K 1177351
US Geological Survey 1177317*
US Geological Survey 1177361*
US Synthetic Corp 1177560*
UT-EOS-DTH 1177225*
UT-EOS-DTH 1177376*
Utrecht Univ 1177348*
Utrecht Univ 1177351*
Vajda, V 1177315
Vakulenko, L G 1177285
Vakulenko, L G 1177286
Valcarce, G Z 1177280
Valdes, P 1177131
Valencia, A 1177210
Valenciano, A 1177479
Valendia, M 1177325
Valenza, J J 1177681
Valenza, J J II 1177360
Valinejad, R 1177764
Van Bakel, P K 1177780
van der Baan, M 1177511
van de Wal, R S W 1177348
van Dijke, M I 1177678
Van Koolwijk, M 1177718
Van Staden, L F 1177543
van Zuilekom, T H 1177567
Vargas Cuervo, G 1177163
Vargas Cuervo, G 1177179
Vargas Cuervo, G 1177307
Vargas, D 1177600
Vargas, H M 1177447
Vargas J, C A 1177177
Varghese, S 1177557
Varlamov, A I 1177274
Varslot, T 1177679
Vasconcelos, C 1177136
Vasper, A 1177605
Vazquez-Figueroa, V 1177242
Vega D, J C 1177494
Vegas, N 1177135
Vega, V 1177396
Veggeland, T 1177457
Veiga, R 1177234
Veira, M 1177144
Velasco, L 1177451
Velayatham, T 1177487
Veldkamp, J 1177448
Velez, V 1177230
Velvin, R 1177808
Venezuela Central Univ 1177394*
Veolia 1177810*
Verard, C 1177261
Verdon, J P 1177386
Verdon, J P 1177387
Verdon, J P 1177520
Vermeer, G J O 1177452
Vermeer, P 1177451
Vermeer, P 1177480
Vermilye, J M 1177594
Vernadsky Inst Geochem 1177255*
Veroslavsky, G 1177266
Vetco Gray Controls Ltd 1177636*
Vetco Gray Inc 1177557*
Victoria Univ, BC 1177797*
Vidal, G 1177226
Vienna Museum 1177183*
Vienna Museum 1177303*
Vienna Museum 1177336*
Vienna Univ 1177318*
Vienna Univ Technology 1177257*
Vignau, S 1177692
Villabona Carvajal, C A 1177655
Villamarin, P 1177210
Villarroel, T 1177704
Virgilio, M 1177406
Vivas, F 1177398
Vivas, J 1177550
Vjetsovpetro 1177583*
VNIPineft 1177639*
Volkov, A V 1177218
von Raumer, J 1177261
Vorobiev, S 1177579
Vorobyev, V 1177579
Vossoughi, S 1177737
VSEGEI 1177135*
Vuillermoz, C 1177463
Wacker Chemie AG 1177608*
Wai, S W 1177543
Walker, C D T 1177440
Walls, J 1177194
Walsh Environment Engineer 1177495*
Wandrey, M 1177774
Wandrey, M 1177777
Wang, A 1177796
Wang, B 1177405
Wang, C 1177343
Wang, F 1177752
Wang, J 1177156
Wang, J 1177796
Wang, L 1177152
Wang, L 1177198
Wang, L 1177343
Wang, N 1177323
Wang, N 1177515
Wang, Q 1177200
Wang, R 1177324
Wang, R 1177413
Wang, R 1177459
Wang, S 1177413
Wang, S D 1177392
Wang, T W 1177800
Wang, T W 1177801
Wang, W 1177156
Wang, W 1177489
Wang, X 1177197
Wang, X 1177733
Wang, X H 1177688
Wang, Y 1177156
Wang, Y 1177157
Wang, Y 1177197
Wang, Y 1177198
Wang, Y 1177315
Wang, Y 1177459
Wang, Y 1177515
Wang, Z 1177197
Wang, Z 1177314
Warchol, M 1177141
Ward, J E S 1177604
Ward, R W 1177560
Ware, D 1177351
Warszawski, J 1177437
Waseda, A 1177337
Wason, H 1177465
Waterloo Univ 1177783*
Watkins, C 1177131
Wat, R 1177735
Watson, J 1177131
Watterson, P 1177401
Watterson, P 1177461
Watterson, P 1177509
Weatherford 1177603*
Weatherford Colombia 1177385*
Weatherford Houston 1177385*
Weatherford International 1177570*
Weatherford Laboratories 1177317*
Weatherford Laboratories 1177680*
Weatherford/Lamb Inc 1177615*
Weatherford/Lamb Inc 1177641*
Webb, S C 1177411
Weber, M 1177188
Weinzierl, W 1177456
Weissert, H 1177351
Wei, Z 1177523
Wellstream Int Ltd 1177757*
Werning, M 1177480
Westerdahl, H 1177462
Westerhold, T 1177190
Western Australia Univ 1177299*
WesternGeco 1177369*
WesternGeco 1177406*
WesternGeco 1177439*
WesternGeco 1177451*
WesternGeco 1177460*
WesternGeco 1177461*
WesternGeco 1177480*
WesternGeco 1177483*
WesternGeco 1177487*
WesternGeco 1177496*
WesternGeco 1177509*
WesternGeco/Schlumberger 1177401*
WesternGeco/Schlumberger 1177444*
Western Research Inst 1177670*
Westlund, D 1177495
West Virginia Univ 1177243*
WET Labs Inc 1177331*
Whidden, S 1177509
Whitmore, D 1177476
Wigniolle, E 1177689
Wilhem, C 1177261
Willax, H 1177671
Williams, M J 1177368
Williams, R G 1177454
Williams-Stroud, S 1177517
Williams, T 1177526
Wilson, C 1177811
Wilson, G L 1177809
Winkelmann, D 1177304
Winkler, F 1177666
Wintershall Holding GmbH 1177663*
Wipki, M 1177775
Woiceshyn, G 1177620
Wong, J 1177469
Wonik, T 1177304
Woodhouse, J H 1177520
Wood, L 1177120
Woods, A W 1177776
Woods Hole Oceanogr Inst 1177798*
Woodward, M 1177369
Wright, P 1177720
Wright, R J 1177409
Wuerdemann, H 1177774
Wuestefeld, A 1177386
Wu, G 1177198
Wu, Q 1177443
Wurdemann, H 1177334
Wurdemann, H 1177777
Wu, X 1177154
Wu, X 1177366
Wu, Z 1177198
Xerox Corp 1177789*
Xiamen Univ 1177324*
Xiao, P 1177477
Xiao, Y 1177413
Xie, J 1177588
Xie, J 1177598
Xing, F 1177529
Xu, B 1177676
Xu, F 1177528
Yalcin, M N 1177358
Yamato, P 1177201
Yang, J 1177515
Yang, P 1177516
Yang, X 1177676
Yang, X 1177688
Yan, P A 1177285
Yan, P A 1177286
Yao, J 1177198
Yao, X 1177315
Yaslam, M 1177711
Yates, M 1177524
Yin, B 1177154
Yin, C 1177151
Yin, C 1177314
Yin, C 1177622
Yonggui, H 1177477
Yoon, H B 1177647
Yoris, F 1177213
Yoris, F 1177273
Young, J P 1177627
Young On, V 1177461
Yousef, A A 1177751
YPF 1177254*
Yuan, Q 1177688
Yu, G 1177282
Yusupov, I G 1177702
Zabelina, S 1177773
Zach, J J 1177438
Zakiev, V R 1177696
Zalan, P V 1177166
Zalyatov, M Sh 1177702
Zambito, J J IV 1177243
Zambrano, A 1177704
Zamora, G 1177254
Zamora Guevara, H 1177167
Zamora, W 1177325
Zamora, W H 1177326
Zapata, J F 1177146
Zapata, T 1177254
Zaragoza Univ 1177297*
Zaton, M 1177264
Zavala, C 1177176
Zavaritskii Inst Geology 1177308*
Zdraveva, O 1177369
Zeng, X Y 1177688
Zettlitzer, M 1177774
Zeyen, H 1177278
Zhai, Y 1177676
Zhang, C 1177151
Zhang, C 1177463
Zhang, J 1177198
Zhang, M 1177528
Zhang, Q 1177365
Zhang, X 1177315
Zhang, X 1177453
Zhang, Y 1177153
Zhang, Y 1177640
Zhang, Y 1177672
Zhang, Z 1177413
Zhan, L 1177155
Zhan, R 1177291
Zhao, J 1177677
Zhao, L 1177126
Zhao, P 1177591
Zhao, W 1177323
Zhao, X 1177298
Zhao, X 1177759
Zhao, X 1177760
Zha, Y 1177411
Zhejiang Inst Geol Survey 1177152*
Zhejiang Univ 1177437*
Zhengjun, W 1177477
Zheng, Y 1177518
Zheng, Y 1177796
Zhong, D L 1177675
Zhou, C 1177393
Zhou, L 1177349
Zhou, S 1177540
Zhou, S 1177554
Zhou, W 1177750
Zhou, X 1177370
Zhou, X Y 1177516
Zhu, M 1177298
Zhu, M 1177323
Zhu, X 1177152
Zilberman, E 1177245
Zimmerman, M D 1177786
Zinck, G 1177475
Zitha, P L J 1177749
Zolotova, O V 1177288
Zou, H 1177640
Zumberge, J 1177316
Zuo, J 1177152
Zverev, F S 1177765


PUBLICATIONS COVERED IN THIS ISSUE

table of contents

(Volume 54, Number 01 January 4, 2014 Abstract Nos. 1,177,120 - 1,177,819)
The numbers following the date of each publication are the last three digitsof the abstract number assigned to each article selected from the publication.

AAPG International Conference (Cartagena, Colombia, 9/8-11/2013) Abstracts
120, 123, 124, 125, 130, 131, 137, 140, 141, 167, 168, 169, 170, 171, 172, 173, 186, 191, 194, 205, 206, 213, 214, 215, 229, 230, 238, 239, 240, 241, 248, 252, 267, 279, 295, 306, 309, 310, 313, 326, 339, 340, 345, 416, 424, 448, 473, 512, 517, 519, 698, 791, 794, 802

Acta Geologica Sinica (English Edition) (April 2011)
126, 151, 152, 153, 154, 155, 156, 157, 197, 198, 209, 291, 298, 314, 315, 323

10th Bolivarian Petroleum Exploration In Subandean Basins Symposium (Cartagena De Indias, Colombia, 7/26-29/2009) Proceedings
121, 122, 127, 128, 138, 139, 146, 147, 148, 158, 159, 160, 161, 162, 163, 164, 165, 166, 174, 175, 176, 177, 178, 179, 180, 181, 187, 195, 199, 208, 210, 211, 212, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 233, 234, 235, 236, 237, 249, 250, 254, 259, 265, 266, 268, 269, 270, 273, 280, 282, 294, 300, 301, 302, 305, 307, 311, 316, 320, 321, 325, 327, 328, 338, 342, 344, 347, 364, 371, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 394, 395, 398, 401, 406, 414, 415, 417, 418, 419, 420, 421, 422, 423, 425, 426, 427, 428, 429, 438, 445, 447, 461, 478, 481, 486, 488, 491, 494, 495, 506, 507, 508, 509, 522, 550, 571, 580, 655, 659, 719, 748

Doklady Earth Sciences (Feb. 2013)
204, 218, 308

75th EAGE/SPE Europec Conference (London, UK, 6/10-13/2013) Extended Abstracts
133, 134, 260, 363, 366, 368, 369, 370, 386, 387, 392, 393, 399, 402, 404, 407, 408, 409, 410, 430, 431, 439, 443, 444, 449, 451, 453, 455, 456, 457, 458, 459, 460, 466, 468, 476, 479, 480, 482, 483, 484, 485, 489, 493, 510, 511, 516, 520, 521, 525

European Geosciences Union General Assembly [EGU] (Vienna, Austria, 4/3-8/2011) Abstracts
132, 135, 136, 142, 143, 144, 149, 182, 183, 184, 185, 188, 189, 190, 193, 196, 200, 201, 202, 203, 207, 217, 231, 232, 242, 246, 247, 253, 257, 281, 283, 296, 297, 299, 303, 304, 318, 322, 329, 331, 332, 333, 334, 336, 346, 348, 350, 359, 388, 501, 773, 774, 775, 776, 777, 792, 798

Fuel (April 2013)
317, 674, 675, 676, 688, 764, 778

Geochemistry International (April 2013)
324

Geochimica Et Cosmochimica Acta (5/1/2013)
341, 349, 361

Geofluids (Nov. 2008)
335, 337, 343, 358, 790

Geologiya Nefti I Gaza (Oil And Gas Geology) (no.1, 2009)
284, 285, 286, 287, 288, 289, 330, 352, 353, 354, 355, 356, 357, 505

Geologiya Nefti I Gaza (Oil And Gas Geology) (no.5, 2010)
192, 251, 262, 271, 274, 275, 276, 277

Geology (May 2013)
243, 244, 278, 319, 351, 360, 403

Geotectonics (March 2013)
255, 256, 312, 504

63rd Annual International Committee For Coal And Organic Petrology Meeting [ICCP] (Porto, Portugal, 9/10-16/2011) Papers; International Journal Of Coal Geology (5/1/2013)
216, 292

Journal Of African Earth Sciences (June 2013)
245, 293

Journal Of Paleontology (July 2011)
129, 145, 258, 264

Marine Pollution Bulletin (4/15/2013)
796, 797, 808

Neftyanoe Khozyaistvo (Oil Industry) (March 2009)
263, 272, 290, 583, 589, 610, 621, 628, 639, 646, 654, 662, 686, 696, 702, 703, 705, 708, 710, 765, 771, 784, 804, 807

Pure And Applied Geophysics (April 2013)
372

83rd Annual SEG International Meeting (Houston, TX, 9/22-27/2013) Technical Program
362, 365, 389, 390, 391, 397, 400, 405, 411, 412, 413, 434, 435, 436, 437, 440, 441, 442, 446, 450, 452, 454, 462, 463, 464, 465, 467, 469, 470, 471, 472, 474, 477, 487, 490, 496, 497, 500, 502, 503, 513, 515, 518, 523, 524, 526, 527, 528

SPE Reservoir Characterisation And Simulation Conference [RCSC] (Abu Dhabi, UAE, 9/16-18/2013) Proceedings
570, 579, 581, 603, 605, 658, 672, 673, 678, 679, 680, 682, 683, 685, 689, 691, 692, 693, 699, 707, 709, 711, 715, 718, 720, 721, 722, 723, 724, 725, 726, 727, 728, 729, 730, 750, 751, 752

Tectonophysics (5/8/2013)
150, 261, 367

Transport In Porous Media (Nov. 2013)
695, 712, 716, 754, 793

World Heavy Oil Congress [WHOC] Technical Conference (Puerto La Cruz, Venezuela, 11/4-5/2009) Proceedings
396, 572, 575, 588, 591, 596, 598, 599, 600, 607, 612, 613, 618, 620, 624, 625, 651, 652, 653, 656, 660, 668, 670, 677, 701, 704, 713, 714, 732, 733, 734, 735, 736, 737, 738, 742, 744, 745, 746, 749, 753, 770, 783, 809, 810, 815


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