Th C3 08 Capturing Structural Uncertainty in Fault Seal Analysis A Multi-throw Scenario Approach
|
|
- Warren Newman
- 6 years ago
- Views:
Transcription
1 Th C3 08 Capturing Structural Uncertainty in Fault Seal Analysis A Multi-throw Scenario Approach M. Giba* (DEA) Summary An intrinsic challenge of fault seal analyses is the large uncertainties that have to be considered. Parameters used in fault seal analyses - sedimentary architecture, Vshale distribution and fault geometry all have large uncertainties. Commonly, uncertainty in sedimentary architecture and Vshale distribution are addressed by building multiple 3D property models (Freeman et al., 2010). Uncertainty in fault geometry, however, is often not treated adequately since only one 3D structural framework model or one fault interpretation is mostly being utilised. In this study, a grid modification tool is used to capture structural uncertainty to assess likely throw scenarios and their impact on fault weak points. This multi-throw scenario analysis was performed on a fault bounded prospect in the Gulf of Suez, Egypt. Seismic imaging in this area is poor and the structural uncertainty of the seismic interpretation is therefore high. Juxtaposition analysis with the original seismic interpretation showed a good lateral seal, whereas a major fault weak point was detected at 70% and 60% throw scenarios. In consequence, the structural uncertainty was found to be too high and the prospect was discarded. This study therefore shows how valuable testing of structural uncertainty is to make better choices in prospect assessment.
2 Introduction An intrinsic challenge of fault seal analyses is the large uncertainties that have to be considered. Parameters used in fault seal analyses - sedimentary architecture, Vshale distribution and fault geometry all have large uncertainties. Commonly, uncertainty in sedimentary architecture and Vshale distribution are addressed by building multiple 3D property models (Freeman et al., 2010). Uncertainty in fault geometry, however, is often not treated adequately since only one 3D structural framework model or one fault interpretation is mostly being utilised. In this study, a grid modification tool is used to capture structural uncertainty to assess likely throw scenarios and their impact on fault weak points. Standard fault seal analysis approach The standard approach in 3D fault seal analyses is to use a single structurally QC ed fault network and to either build a 3D grid (e.g. in Petrel) or to directly project up-scaled parameters from well logs onto fault surfaces (e.g. in TrapTester). In both approaches, accounting for uncertainties is mainly related to petropysical properties of the grid or the well logs. In good practice studies, different Vshale scenarios are used and different facies model scenarios are tested (e.g. James et al. 2004). Accounting for uncertainty is therefore often restricted to petrophysical parameters and sand/shale distributions. Fault weak points are, however, fundamentally related to the geometry of the fault. Yet still, accounting for structural uncertainty is often neglected. Advances in 3D grid building have allowed fast and easy modifications of 3D grids. For instance, with the throw modifier (implemented in Petrel) it is possible to automatically change throws by bending the grid adjacent to faults without modifiying the entire grid. As a result, multiple fault throw scenarios can be tested with the same grid and the time-consuming approach to build several different grids to test structural uncertainty is not required. The throw modifier is mainly designed for high quality 3D seismic cases in which fault geometry and fault throws can be well determined - with the exception of small-scale fault zone complexities which are below seismic resolution (e.g. multiple slip surfaces, normal drag, etc). Multiple slip surfaces and normal drag close to faults may significantly reduce the effective throw and therefore generate altered juxtapositions of reservoir units which have an important impact on fluid flow behaviour (Fig. 1) (e.g. Wood et al. 2015). Incorporation of sub-seismic structural uncertainty into standard fault seal analysis is therefore highly important since the overall fault geometry has a first order impact on the location of fault weak points. To assess small-scale fault zone complexities a standard grid populated with petrophysical parameters has to be built around the analysed fault. Using the throw modifier, the grid is bent close to the fault (Fig. 2) to reduce throws by given values (e.g. 90%, 80%, 70%, etc.). In this way, several throw scenarios can be tested to assess structural uncertainty in high quality seismic datasets. Assessing structural uncertainty in poor quality seismic datasets With poor quality seismic data, structural uncertainty can be large since horizon picks may be less certain due to poor imaging (Fig. 1). This study uses the same approach to test structural uncertainty in an area of poor seismic data as described for high quality seismic (Fig. 3). In contrast to the above described approach, the geometry and throw of the evaluated fault is only poorly resolved. The key uncertainty is therefore structural and a standard fault seal analysis with multiple scenarios of petrophysical parameters and facies models does not address the main challenge. The fault seal analysis therefore has to focus on the structural uncertainty first.
3 Figure 1 Schematic illustration of structural uncertainty in high and poor quality seismic data cases. Structural uncertainty in high quality seismic data cases is mainly related to fault zone complexities which are below seismic resolution (e.g. multiple slip surfaces, normal drag, etc ). In poor quality seismic datasets structural uncertainty can be large and is mainly related to seismic interpretation uncertainties due to poor imaging. Figure 2 Description of multi-throw scenario approach. (A) The 3D grid is bent close to the fault to change throw values. (B) A schematic section across a fault is shown with original horizon interpretation in purple and modified horizon in gray. For high quality seismic cases, this methodology is used to investigate small-scale fault zone complexities. (C) In poor quality seismic cases, the same methodology can be used to test different throw interpretations and their impact on fault weak points. Case study a simple multi-scenario approach The method was applied to a prospect in the Gulf of Suez, Egypt. This fault-bounded prospect is located adjacent to an oil field which has been producing from fault-bounded tilted blocks for several decades. Fault seal issues have been known to represent a key risk in this area. The main challenge in this area is that target reservoirs (> 4000 m depth) are located beneath a thick and continuous salt layer. At target depth seismic imaging is therefore extremely poor (Fig. 3). The main prospect bounding normal fault has an interpreted maximum throw of 800 m and is oriented approximately N-S. Reservoir properties and distributions are well-understood with laterally continuous interbedded sands and shales.
4 Figure 3 Section from Gulf of Suez showing the quality of seismic imaging at target depth which illustrates the level of uncertainty associated with seismic interpretation. Vertical scale is in ms. Fault length vs displacement plot modified after Kim and Sanderson (2005) on the right. Blue star shows interpreted maximum fault throw (800 m) for interpreted fault length (9 km). Throw value range ( m) inferred from Kim & Sanderson data for given fault length is shown in red. 150% throw scenario is used for a fault length of 30 km, i.e. fault in question is interpreted as a single segment of a large fault zone. Figure 4 Fault plane views of 100% throw scenario (top) and 60% throw scenario (bottom). Blue line indicates top reservoir horizon (bold in FW and dashed in HW). Dashed horizontal red line indicates location of fault bounded prospect. Red circle shows area of fault weak point.
5 A grid populated with lithological descriptors derived from two wells (1,5 and 2 km away from the fault) was built around the fault. For the multi-throw scenario analysis, the 3D grid was modified using the throw modifier in Petrel (150%, 100%, 90%, 80%, 70%, 60%, 50%, 40%, 30%, 10% throw scenarios) to assess likely weak points on the fault plane (Fig. 4). Results Juxtaposition analysis using the original seismic interpretation (i.e. 100% throw scenario) shows sealing behaviour on the main fault. Tight carbonate layers in the hangingwall are juxtaposed with the main sandstone target in the footwall (Fig. 4, top). A tilted fault block prospect with a valid lateral seal can be postulated from this throw scenario. Using different throws, however, yields dramatically altered results; at 70% and 60% throws, a large sand-sand juxtaposition area can be observed which represents a key fault weak point (Fig. 4, bottom). This juxtaposition of a sand layer in the hangingwall with the target reservoir in the footwall, was also seen in the 100% throw scenario but here, it does not represent a fault weak point since the trap at 100% throw is located structurally higher. Conclusions A multi-throw scenario analysis was performed on a fault bounded prospect in the Gulf of Suez, Egypt. Seismic imaging in this area is poor and the structural uncertainty of the seismic interpretation is therefore high. In order to better assess this uncertainty, several throw scenarios were run. Juxtaposition analysis with the original seismic interpretation showed a good lateral seal, whereas a major fault weak point was detected at 70% and 60% throw scenarios. Seismic data was not able to clearly resolve the best throw scenario. In consequence, the structural uncertainty was found to be too high and the prospect was discarded. This study therefore shows how valuable testing of structural uncertainty is to make informed decisions and better choices in prospect assessment. References Freeman, S.R., Harris, S.D., Knipe, R.J. [2010] Cross-fault sealing, baffling and fluid flow in 3D geological models: tools for analysis, visualization and interpretation. From: Jolley, S. J., Fisher, Q. J., Ainsworth, R. B., Vrolijk, P. J. & Delisle, S. J. (eds) Reservoir Compartmentalization. Geological Society, London, Special Publications, 347, James, W. R., Fairchild, L. H., Nakayama, G. P., Hippler, S. J., Vrolijk, P. J. [2004] Fault-seal analysis using a stochastic multifault approach. AAPG Bulletin, V. 88, No. 7, PP Kim, Y-E., Sanderson, D.J. [2005] The relationship between displacement and length of faults: a review. Earth-Science Reviews, 68, Wood, A.M., Paton, D. A., Collier, R. E. LL. [2015] The missing complexity in seismically imaged normal faults: what are the implications for geometry and production response? From: Richards, F.L., Richardson, N. J., Rippington, S. J., Wilson, R. W., Bond, C. E. (eds) Industrial Structural Geology: Principles, Techniques and Integration. Geological Society, London, Special Publications, 421,
Fault seal analysis: a regional calibration Nile delta, Egypt
International Research Journal of Geology and Mining (IRJGM) (2276-6618) Vol. 3(5) pp. 190-194, June, 2013 Available online http://www.interesjournals.org/irjgm Copyright 2013 International Research Journals
More informationEstimating Fault Seal and Capillary Sealing Properties in the Visund Field, North Sea A study carried out for Norsk Hydro
Estimating Fault Seal and Capillary Sealing Properties in the Visund Field, North Sea A study carried out for Norsk Hydro Abstract This study investigates the difference in seal/leakage mechanisms across
More informationApplication of fault seal Analysis, Buselli field, Onshore Nile Delta, Egypt
P Application of fault seal Analysis, Buselli field, Onshore Nile Delta, Egypt 1 M. Y. Zein El-Din P P, Nabil Abdel Hafez P and Osama Mahrous P 2 3 Professor of petroleum exploration, Geology department,
More informationFault seal analysis in Move
Fault seal analysis in Move Faults play a critical role in the distribution and accumulation of fluids in sedimentary basins. On the one hand, a fault or fault zone may provide a conduit for fluid migration,
More informationConstrained Fault Construction
Constrained Fault Construction Providing realistic interpretations of faults is critical in hydrocarbon and mineral exploration. Faults can act as conduits or barriers to subsurface fluid migration and
More informationFault History analysis in Move
Fault History analysis in Move The new Fault History plot in Move provides a method to conduct a quick-look analysis of the evolution of faults through time. By restoring the vertical displacement of a
More informationReservoir Scale Deformation and Advances in Fault Seal Analysis
Reservoir Scale Deformation and Advances in Fault Seal Analysis Tim Needham slide 1 Introduction The answer to the question, Does this fault seal? is It depends This is what It depends on: Juxtaposition
More informationGeological Expression A New Approach to Volume Interpretation. Gaynor Paton, ffa
Geological Expression A New Approach to Volume Interpretation Gaynor Paton, ffa The Value of Data Frontier exploration High exploration costs Uncertain returns $$$ Mature basins Marginal Returns Geological
More informationTrapping Mechanisms along North Similan and Lanta Trends, Pattani Basin, Gulf of Thailand
Trapping Mechanisms along North Similan and Lanta Trends, Pattani Basin, Gulf of Thailand Piyaporn Aukkanit Petroleum Geoscience Program, Department of Geology, Faculty of Science, Chulalongkorn University,
More informationGeological Classification of Seismic-Inversion Data in the Doba Basin of Chad*
Geological Classification of Seismic-Inversion Data in the Doba Basin of Chad* Carl Reine 1, Chris Szelewski 2, and Chaminda Sandanayake 3 Search and Discovery Article #41899 (2016)** Posted September
More informationSeals and CO 2 : Techniques and Issues. Dave Dewhurst CSIRO Petroleum
Seals and CO 2 : Techniques and Issues Dave Dewhurst CSIRO Petroleum Why do Seals Fail? Capillary Failure Buoyancy Pressure > Capillary Entry Pressure Mechanical Failure Fracturing (tensile/shear) Faulting
More informationFigure 1: Mode Shale Gouge Ratio results for a normal fault interpreted offshore Nova Scotia, Canada.
Uncertainty Modelling in Fault Analysis The sealing capacity of a fault can be estimated by constraining the interaction between fault throw and the surrounding stratigraphy. Throw is calculated as the
More informationInteraction between Faults and Igneous Intrusions in Sedimentary Basins: Insights from 3D Seismic Reflection Data*
Interaction between Faults and Igneous Intrusions in Sedimentary Basins: Insights from 3D Seismic Reflection Data* Craig Magee¹, Christopher A. Jackson¹, and Nick Schofield² Search and Discovery Article
More informationDownloaded 10/02/18 to Redistribution subject to SEG license or copyright; see Terms of Use at
Multi-scenario, multi-realization seismic inversion for probabilistic seismic reservoir characterization Kester Waters* and Michael Kemper, Ikon Science Ltd. Summary We propose a two tiered inversion strategy
More informationUsing structural validation and balancing tools to aid interpretation
Using structural validation and balancing tools to aid interpretation Creating a balanced interpretation is the first step in reducing the uncertainty in your geological model. Balancing is based on the
More informationAn Overview of the Tapia Canyon Field Static Geocellular Model and Simulation Study
An Overview of the Tapia Canyon Field Static Geocellular Model and Simulation Study Prepared for Sefton Resources Inc. Jennifer Dunn, Chief Geologist Petrel Robertson Consulting Ltd. Outline Background
More informationDownloaded 11/02/16 to Redistribution subject to SEG license or copyright; see Terms of Use at Summary.
in thin sand reservoirs William Marin* and Paola Vera de Newton, Rock Solid Images, and Mario Di Luca, Pacific Exploración y Producción. Summary Rock Physics Templates (RPTs) are useful tools for well
More informationPetrel TIPS&TRICKS from SCM
Petrel TIPS&TRICKS from SCM Knowledge Worth Sharing Fault Model Quality Control Most Petrel projects are faulted. This means that fault models must be built and then checked for accuracy in almost every
More informationQUANTITATIVE INTERPRETATION
QUANTITATIVE INTERPRETATION THE AIM OF QUANTITATIVE INTERPRETATION (QI) IS, THROUGH THE USE OF AMPLITUDE ANALYSIS, TO PREDICT LITHOLOGY AND FLUID CONTENT AWAY FROM THE WELL BORE This process should make
More informationP026 Outcrop-based reservoir modeling of a naturally fractured siliciclastic CO 2 sequestration site, Svalbard, Arctic Norway
P026 Outcrop-based reservoir modeling of a naturally fractured siliciclastic CO 2 sequestration site, Svalbard, Arctic Norway K. Senger (University of Bergen / CIPR), K. Ogata* (University Centre in Svalbard),
More informationQuantitative evaluation of fault lateral sealing
IOSR Journal of Engineering (IOSRJEN) ISSN (e): 2250-3021, ISSN (p): 2278-8719 Vol. 06, Issue 03 (March. 2016), V1 PP 29-33 www.iosrjen.org Jianan Zhu 1, Yue Gong 1 1 (College of Earth Sciences, Northeast
More informationCHAPTER III. METHODOLOGY
CHAPTER III. METHODOLOGY III.1. REASONING METHODOLOGY Analytical reasoning method which used in this study are: Deductive accumulative method: Reservoir connectivity can be evaluated from geological, geophysical
More informationRelinquishment Report. Licence P2016 Block 205/4c
Relinquishment Report Licence P2016 Block 205/4c September 2016 JX Nippon Exploration and Production (U.K.) Limited Idemitsu Petroleum UK Ltd. Table of Contents 1. Licence Information... 1 2. Licence Synopsis...
More informationGeology & Geophysics Applied in Industry. EXERCISE 2: A Quick-Look Evaluation
EXERCISE 2: A Quick-Look Evaluation You have been asked to perform a quick back-of-the-envelope evaluation of the blocks being offered off of Somewhereia. Is there enough potential that our company should
More informationEvaluating the structural integrity of fault-bound traps for CO 2 storage
BADLEY GEOSCIENCE LIMITED Evaluating the structural integrity of fault-bound traps for CO 2 storage Graham Yielding & Peter Bretan Badley Geoscience Ltd Talk Outline Introduction Workflow for evaluating
More informationTHE USE OF SEISMIC ATTRIBUTES AND SPECTRAL DECOMPOSITION TO SUPPORT THE DRILLING PLAN OF THE URACOA-BOMBAL FIELDS
THE USE OF SEISMIC ATTRIBUTES AND SPECTRAL DECOMPOSITION TO SUPPORT THE DRILLING PLAN OF THE URACOA-BOMBAL FIELDS Cuesta, Julián* 1, Pérez, Richard 1 ; Hernández, Freddy 1 ; Carrasquel, Williams 1 ; Cabrera,
More informationReservoir properties and sealing potentials of the Akani Oil Field structures, Eastern Niger Delta, Nigeria
Research Reservoir properties and sealing potentials of the Akani Oil Field structures, Eastern Niger Delta, Nigeria RU Ideozu, TC Iheaturu, CU Ugwueze, I Njoku Department of Geology, University of Port
More informationPETROLEUM GEOSCIENCES GEOLOGY OR GEOPHYSICS MAJOR
PETROLEUM GEOSCIENCES GEOLOGY OR GEOPHYSICS MAJOR APPLIED GRADUATE STUDIES Geology Geophysics GEO1 Introduction to the petroleum geosciences GEO2 Seismic methods GEO3 Multi-scale geological analysis GEO4
More informationRisking CO 2 leakage along faults what do we know?
TCCS talk, 14.06.2017 Risking CO 2 leakage along faults what do we know? Alvar Braathen, Elin Skurtveit, Kei Ogata, Kim Senger and Jan Tveranger, and with contributions from Gabrielsen, Olaussen, Osmundsen,
More informationStorage 6 - Modeling for CO 2 Storage. Professor John Kaldi Chief Scientist, CO2CRC Australian School of Petroleum, University of Adelaide, Australia
Storage 6 - Modeling for CO 2 Storage Professor John Kaldi Chief Scientist, CO2CRC Australian School of Petroleum, University of Adelaide, Australia Regina, Sask., Canada, 17-22 July, 2016 Modeling 2 What
More informationCourse Title: Discipline: Geology Level: Basic-Intermediate Duration: 5 Days Instructor: Prof. Charles Kluth. About the course: Audience: Agenda:
Course Title: Structural Geology Discipline: Geology Level: Basic-Intermediate Duration: 5 Days Instructor: Prof. Charles Kluth About the course: This course covers the basic ideas of structural geometry
More informationSimplified In-Situ Stress Properties in Fractured Reservoir Models. Tim Wynn AGR-TRACS
Simplified In-Situ Stress Properties in Fractured Reservoir Models Tim Wynn AGR-TRACS Before the What and the How is Why Potential decrease in fault seal capacity Potential increase in natural fracture
More informationBulletin of Earth Sciences of Thailand. A study of Reservoir Connectivity in the Platong Field, Pattani Basin, Gulf of Thailand. Hathairat Roenthon
A study of Reservoir Connectivity in the Platong Field, Pattani Basin, Gulf of Thailand Hathairat Roenthon Petroleum Geoscience Program, Department of Geology, Faculty of Science, Chulalongkorn University,
More informationTraining Venue and Dates Ref # Reservoir Geophysics October, 2019 $ 6,500 London
Training Title RESERVOIR GEOPHYSICS Training Duration 5 days Training Venue and Dates Ref # Reservoir Geophysics DE035 5 07 11 October, 2019 $ 6,500 London In any of the 5 star hotels. The exact venue
More informationSAND DISTRIBUTION AND RESERVOIR CHARACTERISTICS NORTH JAMJUREE FIELD, PATTANI BASIN, GULF OF THAILAND
SAND DISTRIBUTION AND RESERVOIR CHARACTERISTICS NORTH JAMJUREE FIELD, PATTANI BASIN, GULF OF THAILAND Benjawan KIinkaew Petroleum Geoscience Program, Department of Geology, Faculty of Science, Chulalongkorn
More informationAppendix B: Geophysical Data (Thesis Appendix, 2013)
Utah State University From the SelectedWorks of David J Richey 2013 Appendix B: Geophysical Data (Thesis Appendix, 2013) David J Richey, Utah State University Available at: https://works.bepress.com/david_richey/2/
More informationBulletin of Earth Sciences of Thailand. Evaluation of the Petroleum Systems in the Lanta-Similan Area, Northern Pattani Basin, Gulf of Thailand
Evaluation of the Petroleum Systems in the Lanta-Similan Area, Northern Pattani Basin, Gulf of Thailand Sirajum Munira Petroleum Geoscience Program, Department of Geology, Faculty of Science, Chulalongkorn
More informationReservoir Geomechanics and Faults
Reservoir Geomechanics and Faults Dr David McNamara National University of Ireland, Galway david.d.mcnamara@nuigalway.ie @mcnamadd What is a Geological Structure? Geological structures include fractures
More informationThe SPE Foundation through member donations and a contribution from Offshore Europe
Primary funding is provided by The SPE Foundation through member donations and a contribution from Offshore Europe The Society is grateful to those companies that allow their professionals to serve as
More informationThe Influence of Pore Pressure in Assessing Hydrocarbon Prospectivity: A Review
H2-2-10 The Influence of Pore Pressure in Assessing Hydrocarbon Prospectivity: A Review Sam Green 1, Stephen A O'Connor 1, Alexander P Edwards 2 1 Ikon Science, Durham, UK, 2 Ikon Science, Teddington,
More informationSerica Energy (UK) Limited. P.1840 Relinquishment Report. Blocks 210/19a & 210/20a. UK Northern North Sea
Serica Energy (UK) Limited P.1840 Relinquishment Report Blocks 210/19a & 210/20a UK Northern North Sea January 2013 1 Header Licence: P.1840 Round: Licence Type: 26th Round Traditional "Drill-or-Drop"
More informationCharacterizing and modeling natural fracture networks in a tight carbonate reservoir in the Middle East: A methodology 1
, pp. 29 35 Characterizing and modeling natural fracture networks in a tight carbonate reservoir in the Middle East: A methodology Dipak Singha Ray 1, Adnan Al-Shammeli 1, Naveen K. Verma 1, Saad Matar
More informationConstraining Uncertainty in Static Reservoir Modeling: A Case Study from Namorado Field, Brazil*
Constraining Uncertainty in Static Reservoir Modeling: A Case Study from Namorado Field, Brazil* Juliana F. Bueno 1, Rodrigo D. Drummond 1, Alexandre C. Vidal 1, Emilson P. Leite 1, and Sérgio S. Sancevero
More informationWe LHR1 01 The Influence of Pore Pressure in Assessing Hydrocarbon Prospectivity - A Review
We LHR1 01 The Influence of Pore Pressure in Assessing Hydrocarbon Prospectivity - A Review S. Green (Ikon Science), S.A. O'Connor (Ikon Science) & A.P. Edwards* (Ikon Science) SUMMARY Assessing the prospectivity
More informationSeismic Attributes and Their Applications in Seismic Geomorphology
Academic article Seismic Attributes and Their Applications in Seismic Geomorphology Sanhasuk Koson, Piyaphong Chenrai* and Montri Choowong Department of Geology, Faculty of Science, Chulalongkorn University,
More informationSummary. Study Area. Data Acquisition
Evidence for hyper-extended continental crust in the East Orphan Basin from seismic reflection data and potential field forward modelling and inversion J. Kim Welford 1, Deric Cameron 2, James Carter 2
More informationReducing Uncertainty through Multi-Measurement Integration: from Regional to Reservoir scale
Reducing Uncertainty through Multi-Measurement Integration: from Regional to Reservoir scale Efthimios Tartaras Data Processing & Modeling Manager, Integrated Electromagnetics CoE, Schlumberger Geosolutions
More informationRock Physics and Quantitative Wavelet Estimation. for Seismic Interpretation: Tertiary North Sea. R.W.Simm 1, S.Xu 2 and R.E.
Rock Physics and Quantitative Wavelet Estimation for Seismic Interpretation: Tertiary North Sea R.W.Simm 1, S.Xu 2 and R.E.White 2 1. Enterprise Oil plc, Grand Buildings, Trafalgar Square, London WC2N
More informationLithology prediction and fluid discrimination in Block A6 offshore Myanmar
10 th Biennial International Conference & Exposition P 141 Lithology prediction and fluid discrimination in Block A6 offshore Myanmar Hanumantha Rao. Y *, Loic Michel, Hampson-Russell, Kyaw Myint, Ko Ko,
More informationQuantitative Interpretation
Quantitative Interpretation The aim of quantitative interpretation (QI) is, through the use of amplitude analysis, to predict lithology and fluid content away from the well bore. This process should make
More informationSeismic reservoir and source-rock analysis using inverse rock-physics modeling: A Norwegian Sea demonstration
66 Seismic reservoir and source-rock analysis using inverse rock-physics modeling: A Norwegian Sea demonstration Kenneth Bredesen 1, Erling Hugo Jensen 1, 2, Tor Arne Johansen 1, 2, and Per Avseth 3, 4
More informationModelling of CO 2 storage and long term behaviour in the Casablanca field
Available online at www.sciencedirect.com Energy Procedia 1 (2009) (2008) 2919 2927 000 000 GHGT-9 www.elsevier.com/locate/xxx www.elsevier.com/locate/procedia Modelling of CO 2 storage and long term behaviour
More informationKinematic structural forward modeling for fault trajectory prediction in seismic interpretation
Fault prediction by forward modeling Kinematic structural forward modeling for fault trajectory prediction in seismic interpretation Mohammed Alarfaj and Don C. Lawton ABSTRACT The unique relationship
More informationDATA ANALYSIS AND INTERPRETATION
III. DATA ANALYSIS AND INTERPRETATION 3.1. Rift Geometry Identification Based on recent analysis of modern and ancient rifts, many previous workers concluded that the basic structural unit of continental
More informationEAS 233 Geologic Structures and Maps Winter Miscellaneous practice map exercises. 1. Fault and separation:
Miscellaneous practice map exercises 1. Fault and separation: With respect to Map 1, what are (a) the orientation of the fault, and (b) the orientation of bedding in the units cut by the fault. (c) Mark
More informationDistortion Effects of Faults on Gravity Worm Strings Robin O Leary
Distortion Effects of Faults on Gravity Worm Strings Robin O Leary Problem Can upward continued gravity anomaly worm strings be used as a tool to determine the dip direction of an offsetting structure
More informationFaults in conventional flow simulation models: a consideration of representational assumptions and geological uncertainties
Faults in conventional flow simulation models: a consideration of representational assumptions and geological uncertainties T. Manzocchi 1, A. E. Heath 2, B. Palananthakumar 1, C. Childs 1 and J. J. Walsh
More informationBest Practice Reservoir Characterization for the Alberta Oil Sands
Best Practice Reservoir Characterization for the Alberta Oil Sands Jason A. McLennan and Clayton V. Deutsch Centre for Computational Geostatistics (CCG) Department of Civil and Environmental Engineering
More informationFifteenth International Congress of the Brazilian Geophysical Society. Copyright 2017, SBGf - Sociedade Brasileira de Geofísica
Geostatistical Reservoir Characterization in Barracuda Field, Campos Basin: A case study Frank Pereira (CGG)*, Ted Holden (CGG), Mohammed Ibrahim (CGG) and Eduardo Porto (CGG). Copyright 2017, SBGf - Sociedade
More informationSeismic validation of reservoir simulation using a shared earth model
Seismic validation of reservoir simulation using a shared earth model D.E. Gawith & P.A. Gutteridge BPExploration, Chertsey Road, Sunbury-on-Thames, TW16 7LN, UK ABSTRACT: This paper concerns an example
More informationT-z profiles can elucidate the kinematic history of normal faults (i.e. fault nucleation, growth, and/or
GSA Data Repository 2018026 Phillips et al., 2018, Determining the three-dimensional geometry of a dike swarm and its impact on later rift geometry using seismic reflection data: Geology, https://doi.org/10.1130/g39672.1.
More informationStorage 4 - Modeling for CO 2 Storage. Professor John Kaldi Chief Scientist, CO2CRC Australian School of Petroleum, University of Adelaide, Australia
Storage 4 - Modeling for CO 2 Storage Professor John Kaldi Chief Scientist, CO2CRC Australian School of Petroleum, University of Adelaide, Australia 1 Modelling 2 On Models. All models are wrong. some
More informationWe A1 12 Method to Generate a Watertight Geological Model Directly From a Seismic Volume
We A1 12 Method to Generate a Watertight Geological Model Directly From a Seismic Volume F. Pauget (ELIIS), S. Lacaze* (ELIIS) Summary This paper presents a novel method to compute a watertight geological
More informationJ.V. Herwanger* (Ikon Science), A. Bottrill (Ikon Science) & P. Popov (Ikon Science)
29829. One 4D geomechanical model and its many applications J.V. Herwanger* (Ikon Science), A. Bottrill (Ikon Science) & P. Popov (Ikon Science) Main objectives (i) Field case study demonstrating application
More informationRELINQUISHMENT REPORT. UK Traditional Licence P Blocks 12/16b & 12/17b. First Oil Expro Limited (Operator, 46.67%)
RELINQUISHMENT REPORT UK Traditional Licence P.1887 Blocks 12/16b & 12/17b First Oil Expro Limited (Operator, 46.67%) Nautical Petroleum Limited (26.67%) North Sea Energy (UK NO2) Limited (26.67%) February
More informationLocating the Remaining Oil in a Complex Field: The Pierce Field Redevelopment
Locating the Remaining Oil in a Complex Field: The Pierce Field Redevelopment Presenter: Michael Porter Team: David Bateman, Thaddeus Ehighebolo, Fiona Haldane, Ash Holland, Jackie Kechichian & Ewan Robertson
More informationTowards Interactive QI Workflows Laurie Weston Bellman*
Laurie Weston Bellman* Summary Quantitative interpretation (QI) is an analysis approach that is widely applied (Aki and Richards, 1980, Verm and Hilterman, 1995, Avseth et al., 2005, Weston Bellman and
More informationImaging complex structure with crosswell seismic in Jianghan oil field
INTERPRETER S CORNER Coordinated by Rebecca B. Latimer Imaging complex structure with crosswell seismic in Jianghan oil field QICHENG DONG and BRUCE MARION, Z-Seis, Houston, Texas, U.S. JEFF MEYER, Fusion
More informationMultidisciplinary Approach Unravels Structural Complexities Of Stampede Reservoir
OCTOBER 2016 The Better Business Publication Serving the Exploration / Drilling / Production Industry Multidisciplinary Approach Unravels Structural Complexities Of Stampede Reservoir By Gopal Mohapatra,
More informationKondal Reddy*, Kausik Saikia, Susanta Mishra, Challapalli Rao, Vivek Shankar and Arvind Kumar
10 th Biennial International Conference & Exposition P 277 Reducing the uncertainty in 4D seismic interpretation through an integrated multi-disciplinary workflow: A case study from Ravva field, KG basin,
More informationApply Rock Mechanics in Reservoir Characterization Msc Julio W. Poquioma
Apply Rock Mechanics in Reservoir Characterization Msc Julio W. Poquioma Chief Reservoir Engineer PetroSA Mobil: +27 79 492.02.52 Email julio.poquioma@petrosa.co.za Aberdeen, April 18 20 / 2012 Content
More informationRESERVOIR CHARACTERIZATION USING SEISMIC AND WELL LOGS DATA (A CASE STUDY OF NIGER DELTA)
RESERVOIR CHARACTERIZATION USING SEISMIC AND WELL LOGS DATA (A CASE STUDY OF NIGER DELTA) * ESHIMOKHAI, S. and AKHIREVBULU, O.E. http://dx.doi.org/10.4314/ejesm.v5i4.s20 Received 19th June 2012; accepted
More informationWe LHR3 04 Realistic Uncertainty Quantification in Geostatistical Seismic Reservoir Characterization
We LHR3 04 Realistic Uncertainty Quantification in Geostatistical Seismic Reservoir Characterization A. Moradi Tehrani* (CGG), A. Stallone (Roma Tre University), R. Bornard (CGG) & S. Boudon (CGG) SUMMARY
More informationTu P8 08 Modified Anisotropic Walton Model for Consolidated Siliciclastic Rocks: Case Study of Velocity Anisotropy Modelling in a Barents Sea Well
Tu P8 08 Modified Anisotropic Walton Model for Consolidated Siliciclastic Rocks: Case Study of Velocity Anisotropy Modelling in a Barents Sea Well Y. Zhou (Rock Solid Images), F. Ruiz (Repsol), M. Ellis*
More informationRelinquishment Report for Licence P.1265, Block 12/28
Relinquishment Report for Licence P.1265, Block 12/28 1. Licence Information Licence Number: P.1265 Licence Round: 23 rd Round Awarded 22 December 2005 Licence Type: Traditional Block Number(s): 12/28
More informationRelinquishment Report. for. Licences: P.1596 (Blocks 205/3, 205/4a) P.1836 (Block 205/2b) P.1837 (Block 205/5b)
Relinquishment Report for Licences: P.1596 (Blocks 205/3, 205/4a) P.1836 (Block 205/2b) P.1837 (Block 205/5b) November 2013 1 of 9 CONTENT 1. Header 2. Synopsis 3. Exploration Activities 4. Prospectivity
More informationFAULT SLICING IN THE INTERPRETATION OF FAULTS IN SEISMIC DATA PROC- ESSING IN ATALA PROSPECT OF RIVER STATE, NIGERIA
FAULT SLICING IN THE INTERPRETATION OF FAULTS IN SEISMIC DATA PROC- ESSING IN ATALA PROSPECT OF RIVER STATE, NIGERIA Egbai, J.C. Department of Physics, Delta State University, Abraka ABSTRACT e-mail: jamesegbai@yahoo.com
More informationUse of Seismic Inversion Attributes In Field Development Planning
IOSR Journal of Applied Geology and Geophysics (IOSR-JAGG) e-issn: 2321 0990, p-issn: 2321 0982.Volume 6, Issue 2 Ver. II (Mar. Apr. 2018), PP 86-92 www.iosrjournals.org Use of Seismic Inversion Attributes
More informationQuantitative Seismic Interpretation An Earth Modeling Perspective
Quantitative Seismic Interpretation An Earth Modeling Perspective Damien Thenin*, RPS, Calgary, AB, Canada TheninD@rpsgroup.com Ron Larson, RPS, Calgary, AB, Canada LarsonR@rpsgroup.com Summary Earth models
More informationExcellence. Respect Openness. Trust. History matching and identifying infill targets using an ensemble based method
Re-thinking the Goliat reservoir models: Trust History matching and identifying infill targets using an ensemble based method Gjertrud Halset, Reservoir geologist Guro Solberg, Reservoir engineer Respect
More informationMain Challenges and Uncertainties for Oil Production from Turbidite Reservoirs in Deep Water Campos Basin, Brazil*
Main Challenges and Uncertainties for Oil Production from Turbidite Reservoirs in Deep Water Campos Basin, Brazil* Carlos H. Bruhn 1, Antonio Pinto 1, and Paulo R. Johann 1 Search and Discovery Article
More informationExploration _Advanced geophysical methods. Research Challenges. Séverine Pannetier-Lescoffit and Ute Mann. SINTEF Petroleum Research
Exploration _Advanced geophysical methods * Research Challenges Séverine Pannetier-Lescoffit and Ute Mann SINTEF Petroleum Research 1 Exploration and Reservoir Characterization * Research Challenges 29%
More informationQuantifying Bypassed Pay Through 4-D Post-Stack Inversion*
Quantifying Bypassed Pay Through 4-D Post-Stack Inversion* Robert Woock 1, Sean Boerner 2 and James Gamble 1 Search and Discovery Article #40799 (2011) Posted August 12, 2011 *Adapted from oral presentation
More informationOne or two deficiencies of current fault seal analysis methods
Shell Exploration & Production One or two deficiencies of current fault seal analysis methods Scott J. Wilkins and Stephen J. Naruk Copyright 2003 SIEP B.V. Structure, Traps and Seals Team Bellaire Technology
More informationFeasibility and design study of a multicomponent seismic survey: Upper Assam Basin
P-276 Summary Feasibility and design study of a multicomponent seismic survey: Upper Assam Basin K.L.Mandal*, R.K.Srivastava, S.Saha, Oil India Limited M.K.Sukla, Indian Institute of Technology, Kharagpur
More informationQuick Look Interpretation Techniques
Quick Look Interpretation Techniques Odd Number of Contours A basic rule of contouring is that ALL contours on a continuous surface must close or end at the edge of the map. This rule seems so obvious
More informationTim Carr - West Virginia University
GEOGRAPHIC EXTENT OF PETROLEUM SYSTEM A Trap Trap Trap A STRATIGRAPHIC EXTENT OF PETROLEUM SYSTEM Petroleum accumulation Top of oil window Bottom of oil window Overburden Seal Reservoir Source Underburden
More informationAvailable online at ScienceDirect. Energy Procedia 114 (2017 )
Available online at www.sciencedirect.com ScienceDirect Energy Procedia 114 (2017 ) 2772 2780 13th International Conference on Greenhouse Gas Control Technologies, GHGT-13, 14-18 November 2016, Lausanne,
More informationRESERVOIR COMPARTMENT ASSESSMENT: A CASE STUDY OF BANGKO AND BEKASAP FORMATION, CENTRAL SUMATRA BASIN INDONESIA
Geotec., Const. Mat. & Env., DOI: https://doi.org/10.21660/2018.51.23451 ISSN: 2186-2982 (Print), 2186-2990 (Online), Japan RESERVOIR COMPARTMENT ASSESSMENT: A CASE STUDY OF BANGKO AND BEKASAP FORMATION,
More informationApache Egypt Companies. The introduction of 3D seismic techniques three decades ago greatly enhanced our
Structure architecture interpretation of the middle Frio Formation using 3D seismic attributes and well logs: an example from the Texas Gulf Coast of the United States HAMED EL-MOWAFY 1 and KURT J. MARFURT
More informationI. INTRODUCTION 1.1. Background and Problem Statement
I. INTRODUCTION 1.1. Background and Problem Statement The declining of global oil and gas reserves has encouraged the exploration campaign to both the frontier area and the revisit to the mature basins.
More informationEvaluation of Hydrocarbon Volume in TRH Field, Onshore Niger Delta, Nigeria
International Journal of Geophysics and Geochemistry 2015; 2(5): 113-123 Published online October 10, 2015 (http://www.aascit.org/journal/ijgg) ISSN: 2381-1099 (Print); ISSN: 2381-1102 (Online) Evaluation
More informationInvestigating fault shadows in a normally faulted geology
Investigating fault shadows in a normally faulted geology Sitamai Ajiduah* and Gary Margrave CREWES, University of Calgary, sajiduah@ucalgary.ca Summary Fault shadow poses a potential development risk
More informationGeosciences Career Pathways (Including Alternative Energy)
Geosciences Career Pathways (Including Alternative Energy) Shale Carbonates Clastics Unconventionals Geology Characterization and Production Properties of Gas Shales Geomechanics in International Shale
More informationBuilding an Integrated Static Reservoir Model 5-day Course
Building an Integrated Static Reservoir Model 5-day Course Prepared by International Reservoir Technologies Lakewood, Colorado http://www.irt-inc.com/ 1 Agenda Day 1 Day 2 Day 3 Day 4 Day 5 Morning Introduction
More informationRecent developments in object modelling opens new era for characterization of fluvial reservoirs
Recent developments in object modelling opens new era for characterization of fluvial reservoirs Markus L. Vevle 1*, Arne Skorstad 1 and Julie Vonnet 1 present and discuss different techniques applied
More informationRelinquishment Report
Relinquishment Report Licence P1403 Block 13/22d Chevron North Sea Limited Korean National Oil Company Chevron North Sea Limited December 2009 1 SYNOPSIS... 3 2 INTRODUCTION. 3 2.1 Licence Terms.. 3 2.2
More informationElliptical Fault Flow
Elliptical Fault Flow Elliptical Fault Flow provides a new way to model and restore faults with variable offsets using Move. This new kinematic algorithm was created by Midland Valley, and is accessed
More information3D curvature attributes: a new approach for seismic interpretation
first break volume 26, April 2008 special topic 3D curvature attributes: a new approach for seismic interpretation Pascal Klein, Loic Richard, and Huw James* (Paradigm) present a new method to compute
More informationFaults. Strike-slip fault. Normal fault. Thrust fault
Faults Strike-slip fault Normal fault Thrust fault Fault any surface or narrow zone with visible shear displacement along the zone Normal fault Strike-slip fault Reverse fault Thrust fault
More information