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67th EAGE Conference & Exhibition
- Conference date: 13 Jun 2005 - 16 Jun 2005
- Location: Madrid, Spain
- Published: 13 June 2005
151 - 200 of 683 results
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Visual Investigation of Oil Depressurisation in Pores with Different Wettability Characteristics and Saturation Histories (SPE94054)
Authors K.S. Nejad and A. DaneshSPE 94054 Visual Investigation of Oil Depressuristion in Pores with Different Wettability Characteristics and Saturation Histories K.S. Nejad and A. Danesh Inst.of Petroleum Engineering Heriot-Watt U. Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material
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Waterflooding in Chalk – Relationship between Oil Recovery, New Wettability Index, Brine Composition and Cationic Wettability Modifier (SPE94209)
More LessSPE 94209 Waterflooding in Chalk: Relationship Between Oil Recovery New Wettability Index Brine Composition and Cationic Wettability Modifier P. Zhang and T. Austad U. of Stavanger Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material
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Micro-PIV – A New Technology for Pore Scale Flow Characterization in Micromodels (SPE94078)
Authors C.L. Perrin, K.S. Sorbie, P.M.J. Tardy and J.P. CrawshawSPE 94078 Micro-PIV: A New Technology for Pore Scale Flow Characterization in Micromodels C.L. Perrin Heriot-Watt U. and Schlumberger Cambridge Research; K.S. Sorbie Heriot-Watt U.; P.M.J. Tardy Schlumberger Production Center; and J.P. Crawshaw Schlumberger Cambridge Research Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers
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Productivity of Frac Stimulations in the German Rotliegend – Theoretical Considerations and Practical Results (SPE94250)
By M. KoehlerSPE 94250 Productivity of Frac Stimulations in the German Rotliegend: Theoretical Consideration and Practical Results M. Koehler SPE Gaz de France Produktion Exploration Deutschland GmbH Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material as
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Multilateral Horizontal Well Productivity (SPE94223)
By T. YildizSPE 94223 Multilateral Horizontal Well Productivity T. Yildiz SPE Colorado School of Mines Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material as presented does not necessarily reflect any position of the SPE their officers
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Successful Peripheral Miscible Gas Injection in RKF Field, Berkine Basin, Algeria – Field Case History (SPE94138)
Authors H. Cubillos, D. Stright and J.M. NavarroSPE 94138 Successful Peripheral Miscible Gas Injection in RKF Field Berkine Basin Algeria – Field Case History H. Cubillos SPE D. Stright SPE and J.M. Navarro SPE CEPSA Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s).
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Integrated Reservoir Characterization for the Redevelopment of a Highly Complex Field (SPE93979)
Authors M.F. Badessich, M. Gait, C. Carbone, F. Dzelalija and P. GiampaoliSPE 93979 Integrated Reservoir Characterization for the Redevelopment of a Highly Complex Field M.F. Badessich M. Gait C. Carbone F. Dzelalija and P. Giampaoli Repsol YPF Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material
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Multidisciplinary Workflow for Oil Fields Reservoir Studies – Case History – Meleiha Field in Western Desert, Egypt (SPE94066)
Authors S. Campobasso, A. Gavana, G. Bellentani, I. Pentoli, M. Pontiggia, L. Villani and T.H. AbdelsamadSPE 94066 Multidisciplinary Workflow for Oil Fields Reservoir Studies - Case History: Meleiha Field in Western Desert Egypt S. Campobasso A. Gavana G. Bellentani I. Pentoli M. Pontiggia and L. Villani ENI SpA and T.H. Abdelsamad IEOC Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum
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Shifting the Gaussian Curve to the Right – A Fully Stochastic Approach to Marginal Offshore Field Development (SPE94206)
Authors T. Graf, H. Henrion, R. Bellavance and J. FernandesSPE 94206 Shifting the Gaussian Curve to the Right – A Fully Stochastic Approach to Marginal Offshore Field Development T. Graf SPE H. Henrion SPE and R. Bellavance SPE Schlumberger and J. Fernandes Sonangol Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are
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Mature Field Development – A Review (SPE93884)
By T. BabadagliSPE 93884 Mature Field Development - A Review T. Babadagli SPE U. of Alberta Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material as presented does not necessarily reflect any position of the SPE their
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WDDM, the Jewel of the Nile (SPE94123)
Authors H.E. Katamish, N. Steel, A. Smith and P. ThompsonSPE 94123 WDDM The Jewel of the Nile H.E. Katamish BG Egypt; N. Steel Burullus Gas Co.; and A. Smith and P. Thompson BG Egypt Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material as
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Fast Estimation of Performance Parameters in Fractured Reservoirs Using Percolation Theory (SPE94186)
Authors M. Masihi, P.R. King and P.R. NurafzaSPE 94186 Fast Estimation of Performance Parameters in Fractured Reservoirs Using Percolation Theory M. Masihi SPE P.R. King SPE and P.R. Nurafza SPE Imperial College London Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material
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An Interwell Water Flood Study – Flow Pattern and Reservoir Heterogeneity Evaluation of A Northern Field Formation in Mexico, Part 1 – Upper Section of the Field (SPE94226)
Authors C. Reyes-Lopez, M.A. Marhx-Rojano, M. Asadi and D.R. CasasSPE 94226 An Interwell Water Flood Study: Flow Pattern and Reservoir Heterogeneity Evaluation of a Northern Field Formation in Mexico Part I: Upper Section of the Field C. Reyes-Lopez and M.A. Marhx-Rojano PEMEX; M. Asadi SPE ProTechnics; and D.R. Casas SPE O’Jeito S.A. de C.V. Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have
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Multi-Well Operational Optimization for Maximum Production (SPE93147)
Authors L. Kappos and M.J. EconomidesSPE 93147 Multi-Well Operational Optimization for Maximum Production L. Kappos SPE Schlumberger and M.J. Economides SPE U. of Houston Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material as presented does not necessarily reflect any
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What Would Be Different If the Exploitation Started Today – Comparison to a Real Field (SPE94017)
Authors M.C. Salomão and R.O. PeisinoSPE 94017 What Would Be Different if the Exploitation Started Today − Comparison to a Real Field M.C. Salomão SPE and R.O. Peisino Petrobras Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material as presented
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Integrated Modeling of the Mature Ashtart Field, Tunisia (SPE94007)
Authors R. Bischoff and R. BejaouiSPE 94007 Integrated Modeling of the Mature Ashtart Field Tunisia R. Bischoff OMV E&P GmbH and R. Bejaoui Entreprise Tunisienne d’Activités Pétrolières Copyright 2005 Society of Petroleum Engineers This paper was prepared for presentation at the SPE Europec/EAGE Annual Conference held in Madrid Spain 13-16 June 2005. This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material as presented does not
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Mesozoic Petroleum Systems of the Gulf Region – A Revisit from Regional to Prospect
Authors M. Yamin Ali and A. DinE001 MESOZOIC PETROLEUM SYSTEMS OF THE GULF REGION – A REVISIT FROM REGIONAL TO PROSPECT MOHAMMAD YAMIN ALI 1 and AHMAD DIN 2 1 PETRONAS Research and Scientific Services Sdn Bhd Lot 3288 & 3289 Off Jalan Ayer Itam Kawasan Institusi Bangi 43000 Kajang Selangor MALAYSIA and 2 PETRONAS Carigali Sdn Bhd. Summary The synthesis and petroleum systems integration from regional and basin scale to prospect level within the Jurassic to Cretaceous sequences in the Gulf region have come up with a very interesting result. Twenty-nine 3 rd order maximum regression surfaces (MRS) and maximum flooding surfaces (MFS) have been
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Plio-Quaternary Evolution of the West Alboran Basin (W Mediterranean)
Authors J.I. Soto, M.C. Comas, F. Fernadez-Ibañez, G. Marro, M.J. Román, A.R. Talukder, R. Mountfield and Y.M.R. ChevalierE002 PLIO-QUATERNARY EVOLUTION OF THE WEST ALBORAN BASIN (W MEDITERRANEAN) 1 J.I. SOTO 1 M.C. COMAS 1 F. FERNANDEZ-IBAÑEZ 1 G. MARRO 1 M.J. ROMÁN 1 A.R. TALUKDER 1 R. MOUNTFIELD 2 and Y.M.R. CHEVALIER 2 1 Inst. Andaluz de Ciencias de la Tierra (CSIC-Granada Univ.) Campus Fuentenueva s/n 18002 Granada Spain 2 ConocoPhillips Introduction The Alboran Sea Basin in the Westernmost Mediterranean has been the site of multiple gas and oil exploration surveys since the 70’s decade of the last century. The commercial interests in this basin have provided a dense network of multi-channel seismic profiles mainly confined to
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Potential Deep Water Petroleum Systems in the Equatorial West African Margin
E003 Potential Deep Water Petroleum Systems in the Equatorial West African Margin. Abstract 1 The Equatorial West African Margin (EWAM) is a huge and almost unexplored region embracing the offshore area of Guinea Bissau Guinea Conakry Sierra Leone Liberia Côte d’Ivoire Ghana Togo and Benin. It covers approximately 2.5 MM km2 with 360 wells and about 250000 km of 2D seismic and approximately 10000 km2 of 3D seismic. Recent deepwater hydrocarbons discoveries in countries like Equatorial Guinea Côte d’ Ivoire and Mauritania suggest the extension of the deepwater plays along the coast of West Africa. Specifically the EWAM zone presents
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Volcanic Events and Petroleum Systems – The Case of the Volcán Auca Mahuida Field, Neuquen Basin, Argentina
Authors F. Pángaro, A. Vottero, H. Villar, L. Rodíguez Arias and G. BojarskiE004 Volcanic Events and Petroleum Systems: The Case of the Volcán Auca Mahuida Field Neuquen Basin Argentina Introduction 1 The Volcán Auca Mahuida (VAM) Field is located in the central portion of the Neuquen Basin; it is emplaced in the slope of a huge fisural Tertiary to Quaternary volcanic complex and houses a recoverable reserve of 15 Mbbl of oil. The trap which was formed as a response to the emplacement of igneous bodies in stratigraphic units underlying the reservoir is located in the flank of a highly compartmentalized four-way dip structure covering more than 300 km2. At the moment
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An Efficient Paleocene 'Pipeline' Draining the Prolific Danish Central Graben?
Authors S.E. Ohm, D.A. Karlsen, A. Roberts, E. Johannessen and O. HøilandE005 An efficient Paleocene 'pipeline' draining the prolific Danish Central Graben? A new petroleum charge model is presented for the sandy Paleocene channel system known as the Siri Fairway. The Siri Fairway straddles the platform area along the Danish – Norwegian offshore border and stretches from the Norwegian paleo-shelf until the Tail-End Graben and Søgne Basin (within the Central Graben). The closest known expelling source rocks are located in the Central Graben. The discoveries of the Siri Field and later the Cecilie and the Nini Fields prove that petroleum has migrated through the sandy Paleocene deposits for distances up to
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Polygonal Fault Systems – Orgin and Fluid-Escape Features
By N.R. GoultyE006 POLYGONAL FAULT SYSTEMS: ORIGIN AND FLUID-ESCAPE FEATURES Introduction 1 Polygonal fault systems are found in sequences of very fine-grained sediments commonly covering areas >50000 km 2 and have been identified in more than 50 basins worldwide (Cartwright et al. 2003). They comprise layer-bound arrays of normal faults in sequences with clay fractions >70% and lithology that varies from smectitic claystone to chalk (Dewhurst et al. 1999). Depositional settings are generally passive indicating that the faults developed in response to gravitational compaction during burial with negligible tectonic extension or compression. The characteristics of polygonal faults resolved on 3D seismic data
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Pushing the Limits of 3D Basin Modeling with Linux Clusters
Authors M. Thibaut, S. Requena, S. Pegaz and L. AgelasE007 PUSHING THE LIMITS OF 3D BASIN MODELING WITH LINUX CLUSTERS 1 Abstract In recent years the 3D modelling and simulation of sedimentary basins[1] has become an integral part of the exploration of reservoirs for almost all major oil companies. The most computing intensive part of the simulation consists in solving numerically a complex system of non linear partial differential equations predicting the entire physical and chemical processes of hydrocarbon generation and accumulation through geological times. With a price/performance ratio and with services in constant progress Linux clusters have become a very attractive alternative to “traditional” high performance computing facilities.
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Integrating Local Grid Refinement Methods for Basin Modeling
Authors M. Thibaut, Y. Caillabet, E. Flauraud and F. SchneiderE008 INTEGRATING LOCAL GRID REFINEMENT METHODS FOR BASIN MODELING Abstract 1 In reservoir characterization Local Grid Refinement (LGR) is applied routinely on unstructured grids for fluid flow simulation and implemented in commercial simulators. In basin modeling LGR has been recently implemented. Basin models require different and oftentimes more complex numerical treatment of physical phenomena than reservoir models. Large numbers of cells are not feasible for basin simulators because of excessive processing time. The number must be reduced by averaging properties in such a way that flow and geological characteristics are retained. Presently tartan grids allow to refine the grid in
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Successful Exploration of a Large-Scale Sandstone Injection Complex, Block 24/9, Norwegian North Sea
Authors P.B. Rawlinson, W. de Boer and A. HurstE009 Successful Exploration of a large-scale Sandstone Injection Complex Block 24/9 Norwegian North Sea Summary 1 Exploration well 24/9-7 was drilled by Marathon Oil and its co-venturers on Norwegian licence PL 150 during the first quarter of 2004. The well targeted a series of distinct seismic amplitude anomalies markedly discordant to the general structural trend. These anomalies had been interpreted as a large-scale sandstone injection complex. Seismic modeling indicated that the best explanation for the bright amplitudes observed was that they were generated by oil-filled highly porous intrusive sandstone dykes and sills. The data collected from well 24/9-7 (and three
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The Brenda Field Development – A Multi-Disciplinary Approach
Authors I.F. Jones, R. Christensen, J. Haynes, J. Faragher, I. Novianti, H. Morris and G. PickeringE010 The Brenda Field Development: a Multi- Disciplinary Approach Abstract 1 Recent initiatives in the North Sea and UKCS such as the introduction of the ‘Fallow Field’ initiative and offering of ‘Promote’ licenses have started to generate real activity by attracting active new entrants who can provide new capital and new ideas to focus on exploration and appraisal. Fields which had been abandoned or considered of insufficient commercial interest have been offered a new lease of life by allowing proactive companies to identify and exploit latent commercial prospects by tying in to existing infrastructure. Here we showcase one such recent
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Southern North Sea PreSDM Imaging Using Gridded Tomography
Authors I.F. Jones, E. Evans, M. Papouin, S. Abedi, M. Gauer and P. SmithE011 Southern North Sea preSDM imaging using gridded tomography Abstract Exploration in the Southern North Sea using conventional imaging techniques is hampered by complexities in the Mesozoic overburden and the Zechstein evaporites with dolomitic rafting overlying potential targets. 3D preSDM imaging has come into widespread use in recent years in an attempt to resolve such problems. Here we present a case history from the GdF acreage over Quad 43 and 44 where an eight survey merge covering some 1500 sq.km was reprocessed to yield a coherent single input volume for both preSTM and preSDM imaging. One of the surveys was
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Orphan Basin– Integrated Geophysical Study and Implications for Atlantic Conjugate Margin Exploration
Authors S.J. Kearsey and M.E. EnachescuE012 Orphan Basin: Integrated Geophysical Study and Implications For Atlantic Conjugate Margins Summary: 1 A regional integrated geophysical study was performed on the Orphan Basin offshore Newfoundland to help establish its tectonic and stratigraphic evolution and relationships to conjugate margin basins. Two distinct sedimentary basin groups interconnected during their main rifting stages were identified. An Early Mesozoic narrow rift trend contains the Jeanne d’Arc East Orphan and Porcupine basins whereas the broad West Orphan and Rockall basins share a common mid-late Mesozoic evolution. Prior to mid Cretaceous continental drift all these basins were linked. Detailed seismic mapping well correlation and
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High-Grading Prospects by Utilizing AVO Attributes – A Case Study from Sarawak Basin, Malaysia
Authors R. Sigit, R. Lasman and N. van de CoeveringE013 High-Grading Prospects by Utilizing AVO Attributes: A Case Study From Sarawak Basin Malaysia Introduction 1 Direct identification of fluids with seismic data is of great interest in exploration and production (E&P). In the past 10 years E&P companies have made great efforts in using classic AVO (amplitude versus offset) attributes to greatly increase exploration success ratios. However many types of amplitude responses such as bright spots flat spots or dim spots were observed on seismic data that have no link to hydrocarbon occurrence which led to exploration failures. AVO is a way of high-grading those amplitude anomalies and having
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Using 3D Distinct Element Method to Predict Stress Distribution – Kupe Field,Taranaki Basin, New Zealand
Authors B.A. Camac, S.P. Hunt, C.E. Gilbert and D.P. AnthonyE014 Z-99 Using 3D Distinct Element Method to predict stress distribution – Kupe Field Taranaki Basin New Zealand. Introduction 1 B. A. CAMAC 1 S. P. HUNT 1 C. E. GILBERT 2 AND D. P. ANTHONY 2 1 Australian School of Petroleum University of Adelaide North Terrace Adelaide S.A. 5005 Australia 2. Origin Energy Resources Ltd 339 Coronation Drive Milton QLD 4064 Australia Keywords: Stress modelling Distinct element method DEM 3DEC Taranaki Basin Kupe South exploration risk field development enhanced recovery stress prediction Understanding rock mass stress mass away from the borehole is a major obstacle in the exploration for
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Prestack 3-D TAU Migration and Velocity Analysis – Application to Seismic Data from Offshore Abu Dhabi
Authors T. Alkhalifah, S. Alsharif and K. BelaidE015 Prestack 3-D TAU Migration and Velocity Analysis: Application to seismic data from Offshore Abu Dhabi Summary 1 We managed to apply a prestack 3-D τ� (a depth variant)� migration on a 3D seismic test data set from offshore Abu Dhabi using the final developed interval velocity model. The velocity model was built through an initial series of 2-D TAU migration velocity analysis and supplemented by 3-D subset migration. A 3-D TAU migration velocity analysis was used to apply the final two updates to the model. The final interval velocity model provided low residuals in common-image gathers and agreed well
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Sandstone Versus Carbonate Petroleum Reservoirs – A Global Perspective on Porosity-Depth and Porosity-Permeability Relationships
Authors S.N. Ehrenberg and P.H. NadeauE016 Sandstone versus carbonate petroleum reservoirs: a global perspective on porositydepth and porosity-permeability relationships Abstract 1 S. N. EHRENBERG AND P. H. NADEAU Statoil N-4035 Stavanger Norway The two fundamental differences between sandstone and carbonate reservoir rocks are: (1) the site of sediment production (allochthonous for sandstones versus autochthonous for carbonates) and (2) the greater chemical reactivity of carbonate minerals. It is the latter difference that has profound significance for diagenesis and reservoir quality such that siliciclastic strata for the most part display only minor effects of eogenetic diagenesis other than carbonate concretions and soil development whereas carbonates are characterized
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Determining Migration Pathway in Marco Polo Field Using Chimney Technology
Authors F. Aminzadeh, D. Walraven and D.L. ConnollyE017 Determining Migration Pathway in Marco Polo Field Using Chimney Technology D. WALRAVEN 1 D L. CONNOLLY 2 F. AMINZADEH 1 1 1 Anadarko 1201 Lake Robins Dr The Woodlands TX 77380USA 2 dGB-USA Summary Chimney volumes derived from 3-D seismic data are used to determine fluid migration pathways in the vicinity of the Marco Polo field in the deepwater Gulf of Mexico. The results obtained have three main objectives: a) to predict seeping and non-seeping surface faults to improve positioning of shallow piston cores; b) to characterize the chimney signature associated with the main field pay zones; c) to
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A Western Venezuela Case Study – The Sipororo Structure – From Abandonment to 35 MMscfg/d
Authors A. Franco, G. Whiteley and A. EchanoveE018 A western Venezuela case study. The Sipororo Structure: from abandonment to 35 MMscfg/d. Summary 1 New exploration ideas and methodologies along with applied drilling and completion technologies were successfully utilized to discover new gas reserves in the Barinas basin of western Venezuela. In 2001 Repsol-YPF initiated an exploration program in the Barrancas Block an area of the relatively under explored Barinas basin. Four exploratory wells were drilled in the block between 1996 to 1998 with limited commercial success. The wells were originally planned to explore for oil but found limited quantities of gas. The wells proved to be difficult
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Exploration Potential of the Berbice Mega Incised Valley, Guyana-Suriname Basin
Authors M.A. Torres, R. Giraudo, S. Hermeston and D. RamosE019 T-01 Exploration Potential of the Berbice Mega Incised Valley Guyana-Suriname basin. Summary 1 MAX A. TORRES (*) RAUL GIRAUDO STEVE HERMESTON AND DAVID RAMOS RepsolYPF Caribbean Exploration Group Houston The Berbice mega incised valley is a regional feature located in the Georgetown Block in the Guyana-Suriname basin in the northeastern coast of South America. The basin presents typical ramp to prograding passive margin geometries influenced by the Guyana Transform strike slip tectonics. Restricted circulation during the Cenomanian - Turonian favored the deposition of the organic rich (3-20+% TOC) proven source rock Canje Fm. Oil fingerprinting and maturity models tied
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New Exploration in the Proven Petroleum System of the Suriname Offshore Basin, Suriname
Authors S.A. Hermeston, M. Torres, A. Kean, D. Ramos and I. BrissonE020 New Exploration in the Proven Petroleum System of the Suriname offshore basin Suriname Summary 1 A proven petroleum system has been established in Suriname requiring long distance migration of approximately 200 km from the deep water offshore source basin to the onshore Tambaredjo Field (~1.1Bbo in-place) operated by Staatsolie. Restricted circulation during the Cenomanian-Turonian resulted in the deposition of the organic rich (3-20+% TOC) source rock in the Canje Formation present in exploratory and ODP wells. A recent review of the historical well and seismic files in conjunction with the reprocessing of a 1999 seismic data set and the
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Pict Field – Development of a Previously Fallow Oil and Gas Discovery in the UK CNS
Authors K. Russell, S. Trueman and J. AshdownE021 PICT FIELD: DEVELOPMENT OF A PREVIOUSLY FALLOW OIL AND GAS DISCOVERY IN THE UK CNS 1 K.RUSSELL S. TRUEMAN J. ASHDOWN Petro-Canada UK Ltd 28b Albyn Place Aberdeen AB10 1YL UK The Pict oil and gas discovery was made in 1981 by the 21/23b-1 well. It remained undeveloped through to 2004 due to the small in-place and recoverable volumes of the accumulation. Although small economics are robust if the risks can be reduced to an acceptable level. Existing infrastructure and in-house sub-surface expertise gained from operating the nearby Guillemot fields encouraged the current operator to proceed to development. Key
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3D VSP Used to Image Near Complex Salt Structure in the Deep Water Gulf of Mexico
Authors B. Hornby, T. Fitzpatrick, F. Rollins, H. Sugianto and C. RegoneE022 Z-99 3D VSP used to image near complex salt structure in the deep water Gulf of Mexico Summary In an exploration well in the deep water Gulf of Mexico we acquired a large 3D VSP survey for the purpose of imaging sedimentary structure near a complex salt body where the surface seismic was blind. Introduction 1 BRIAN HORNBY TERRY FITZPATRICK FRANCIS ROLLINS HANS SUGIANTO CARL REGONE BP 501 Westlake Park Blvd Houston TX 77079 USA For this well a complex salt body creates illumination problems with surface seismic imaging resulting in ‘shadow zones’ where the surface seismic is blind
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Imaging Deep Geology Using Full Tensor Gravity Gradiometry Inversion – K-2, Deepwater Gulf of Mexico
Authors M.A. Davies, J. O‘Brien, A. Rodriguez, P. Houghton, G. Barnes and J. LumleyE023 Imaging Deep Geology Using Full Tensor Gravity Gradiometry Inversion: K-2 Deepwater Gulf of Mexico 1 Mark A. Davies 2 John O’Brien 2 Arnold Rodriguez 1 Phillip Houghton 1 Gary Barnes & 1 John Lumley 1 ARKeX Limited Newton House Cowley Road Cambridge CB4 0WZ UK 2 Anadarko Petroleum Corporation The Woodlands Houston USA A common misunderstanding in the oil industry is that Full Tensor Gravity Gradient (FTG) data is only of use when resolving shallow sections of the earth model. This paper will highlight the ability of FTG to resolve deep as well as shallow geological targets by showing
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2D Deconvolution for OBC Data and for Internal Multiple Attenuation – Part 2 – Practical Aspects and Examples
Authors C. Tichatschke and P. HugonnetE024 Z-99 2D deconvolution for OBC data and for internal multiple attenuation - Part 2: Practical aspects and examples Abstract 1 The 2D predictive deconvolution is a recent technique towards the attenuation of surface related multiples. In the first part of this paper (part 1) its extension to OBC data had been formulated followed by a discussion about its potential applicability to internal multiple removal. Within the paper at hand (part 2) the method’s evaluation on synthetic and real data is presented. As expected the extended version shows good performance concerning the attenuation of surface related multiples on OBC data.
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Non-Conventional Exploration Targets, Serrania del Interior Foothills, Venezuela
Authors R. Giraudo, G. Jalfin, M. Etemadi, E. Moldovanyi and M. Torres1 E025 Non-conventional Exploration Targets Serranía del Interior Foothills Venezuela Summary A non-conventional play concept within a thrust-and-fold belt was identified within the Late Paleogene interval in the foothills of the Serranía del Interior Eastern Venezuela Basin. This play is the combination of delta-front facies deposited as part of an Upper Oligocene lowstand prograding wedge folded when deformation affected the area in the Lower Miocene. Hydrocarbons might be trapped up dip where the deltaic sands shale out not necessarily in the culmination of the structures as traditionally they were drilled. A detailed example of this unconventional play from the Quiriquire
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Quantifying Imaging and Position Problems beneath TTI Media
By R. VestrumE026 Z-99 Quantifying imaging and position problems Abstract 1 Dipping anisotropic clastics are ubiquitous in Foothills geologic settings. Structures below these strata are laterally mispositioned on seismic images when we do not correct for seismic anisotropy. This lateral-misposition effect varies with offset so when offsets are stacked together reflection points will be smeared in the final image. Raytracing demonstrates the lateral-position and smear phenomena when imaging structures below tilted transversely isotropic media. Analysis of the raytracing results predicts the quantity of lateral-position error and reflection-point smear on a seismic image. We created numerical-model seismic data to see what reflection-point smear
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Petroleum System Appraisal in Compressive Area – An Example from Eastern Venezuela
More LessE027 Petroleum system appraisal in compressive area: An example from Eastern Venezuela 1 FRÉDÉRIC J. S. SCHNEIDER Institut Français du Pétrole 1 & 4 avenue de Bois Préau 92852 Rueil-Malmaison France Email: [email protected] Introduction The area selected for this study is a north-south transect within the Eastern Venezuelan Basin. The focus of this study was to understand the geological history of the two major reservoir units (Upper Cretaceous and Oligocene Formations) of the El Furrial structure. In a first step mineralogical and geochemical data from the two Formations were collected. Some data were also collected for the surrounding seal the
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Thrust Belt Imaging Enhanced by Wide Offset Workflow
Authors D. Colombo, S. Carbonara and M. MantovaniE028 Abstract 1 Acquisition of an extended offset line by Husky Energy Inc. in the Canadian Foothills was followed by novel wide offset (depth) processing approach aimed at using all the seismic signals recorded from short to very large offsets for velocity model building and depth imaging. Velocity analysis was carried out by extensive use of high resolution tomographic tools involving the joint inversion of refracted and reflected data. Imaging was obtained by using a Kirchhoff PSDM scheme. Results show the improvement in the imaging achieved by using offsets up to two times the depth of the target relative to
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Best Practices in Resource Assessments and Reserves Disclosures
More LessE029 Best Practices in Resource Assessments and Reserves Disclosures Introduction 1 Recent reserve “write-downs” have attracted increased surveillance from regulatory agencies focused on disclosure compliance. Not only do such reserves surprises negatively impact company share valuations but also senior management and directors may be exposed to civil and even criminal penalties. At the same time many oil and gas companies have been reengineering the processes by which they assess store and report their estimates of total recoverable hydrocarbons (i.e. resources) to better support their internal portfolio management. This presentation reviews “best practices” that foster rigorous assessments of a company’s total
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Upstream Risk and Portfolio Management – A Language That Communicates to the Investment Community
Authors H.S. Pettingill and G.H.F. WardE030 Upstream Risk and Portfolio Management: a Language that Communicates to the Investment Community 1 H. S. PETTINGILL 1 AND G. H. F. WARD 1 1 Noble Energy Inc. 100 Glenborough Drive Houston TX 77067 USA Investment professionals are aware that leading E&P companies employ probabilistic Risk Analysis and Portfolio Management often resulting in improved performance. As investment professionals have become familiar with this approach it has become a “language” that allows technical professionals to effectively communicate to investors. Specifics of this common “language” and how E&P companies can balance their own needs with those of their investors include: •
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Managing Portfolios of Interdependent Prospects – An Application to Predicting Future Gas Discoveries in the Netherlands
Authors J.D. van Wees, J. Lutgert, H. Mijnlief, J. Breunese and C. BosE031 Managing portfolios of interdependent prospects: an application to predict future gas discoveries in the Netherlands Abstract 1 Prospect interdependencies if present and marked by a postitive correlation result in a higher volatility of the portfolio compared to a portfolio with independent prospects. The volatility offers options for companies to increase the expected monetary value (EMV) of the exploration portfolio or any group of interdependent prospects. However the same volatility adds uncertainty to the governments future reserves. In order to investigate these effects on the Netherlands Gas portfolio a methodology has been developed for modelling the effects of dependencies. The
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Gas-Bearing Fractured Reservoir Characterization in the Deep Valley Field, West Texas
More LessE033 Gas-bearing Fractured Reservoir Characterization in the Deep Valley Field West Texas FENG SHEN 1 LONG XU 2 DAVID SILVES 2 CALVIN SERPAS 2 AND LANBO LIU 2 Abstract 1 We present a combined geological geophysical and rock mechanics approach to natural fractured reservoir characterization in Devonian formation in the Deep Valley TX USA. Model based impedance inversion discontinuity analysis and seismic attribute analysis are used to investigate the lithology variations. These analyses quantify the spatial and temporal lithology heterogeneity. The curvature attribute along with modeled strain and stress field reveal effects of the geological structure and lithology heterogeneity on
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Fractured Reservoir Characterisation from Seismic and Well Analysis – A Case Study
Authors Y. Freudenreich, A. Amato del Monte, E. Angerer, C. Reiser and C. GlassE034 Fractured reservoir characterisation from seismic and well analysis: a case study Abstract 1 The performance of naturally fractured reservoirs is controlled by the orientation intensity and spatial distribution of open fractures. In this paper we present the results of a recent fracture characterization study based on P-wave azimuthal anisotropy using interval velocities and RMS amplitude maps. A consistent processing sequence was applied to all azimuth sectors in order to preserve the quality of the azimuthal anisotropy information. A proprietary geostatistical decomposition technique was applied to ensure more stable and accurate estimates of the fracture intensity and direction. These results
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Modeling Gas Injection in Discrete Fracture Networks Generated Using Multi-Point Statistics
Authors A. Sahni, D. Dull, W. Narr, R. Bakenov and K. Dehghani1 E035 Modeling gas injection in discrete fracture networks generated using multi-point statistics Abstract The two conventional methods of modeling fractures have been to use a single porosity medium with enhanced permeability (based on fracture spacing orientation etc.) or a dual porosity system where the matrix feeds the higher permeability fracture system. The former approach may capture variability in well productivity which could be important during primary production. However the effective permeability approach is not suitable for modeling displacement mechanisms especially at the large simulation grid block scale. Workarounds are possible like using pseudo relative permeability or capillary pressure curves
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