FIRST BREAK. 4D Seismic. Special Topic
|
|
- Darren Parrish
- 6 years ago
- Views:
Transcription
1 ISSN FIRST BREAK May 2008 Volume 26 4D Seismic Special Topic Technical Articles Building velocity models for depth imaging: a North Sea case study Passive seismic and surface deformation monitoring of steam injection Technology Features Deep water pre-processing: East Coast India Mapping fracture corridors in naturally fractured reservoirs of the Middle East
2 first break volume 26, May 2008 technology feature Mapping fracture corridors in naturally fractured reservoirs: an example from Middle East carbonates Sunil K. Singh, Hanan Abu-Habbiel and Badruzzaman Khan (Kuwait Oil Company) and Mahmood Akbar, Arnaud Etchecopar and Bernard Montaron (Schlumberger) point to the importance of mapping fracture corridors in optimizing reservoir production and show how high resolution seismic can contribute in Middle East carbonate environments. In many oil and gas reservoirs, natural fracture networks help drain hydrocarbons and other fluids. The role of fractures is particularly important in reservoirs having a tight matrix. In carbonate formations, for example, it is quite common to observe a permeability contrast of 1000 or more between the rock matrix and surrounding fractures. Natural fractures are a recording of the reservoir stress history. They tend to be organized in different families oriented according to particular directions. Fracture corridors (FCs) are an extraordinary cluster of a huge number of quasi-parallel fractures. FCs vary in Figure 1 Sabriyah Field in North Kuwait used as a key area in the study. X-5 and X-6 are the new wells that were being drilled at the time of the study. The fracture clusters predicted by FCM for these wells were validated by the cores and borehole images obtained from them. size and extension (vertical and lateral). Their dimensions can vary over a wide range. For instance, some of them have been found to be 10 m wide, 100 m high, and 1000 m long. Such FCs can contain more than hundreds to ten thousand fractures and have a permeability well above 10 Darcy. Other types of clusters can also be observed. Individual fractures or those that do not appear to be a part of FCs are called diffuse fractures. Conductive FCs are major highways for fluids flow in the reservoir and their exact positions must be known and accurately mapped in the reservoir model in order to obtain realistic dynamic reservoir simulations. This information is essential in order to select injector and producer well locations that maximize the reservoir sweep efficiency. A workflow to map all major FCs in a reservoir is described here. Results are presented for five Middle East carbonate fields in Kuwait. Fracture cluster mapping workflow and results The workflow is based on the assumption that, when natural fractures exist in the form of clusters of larger dimensions (i.e m or more in width, vertical and horizontal lengths), they should be expressed in some way in the 3D seismic data. The workflow mainly involves integration of borehole data with the 3D seismic to optimize the extraction process achieved through the discontinuity extraction software (DES) processing. The 3D seismic data must exhibit optimal spatial/temporal bandwidth and signal-to-noise ratio to ensure that the subsequent attributes input to the DES processing contain meaningful information to map fracture clusters. This may require bespoke acquisition design and data processing workflows using single-sensor data. Seismic attributes sensitive to fracture clusters are identified and input to the DES. The directional (azimuthal) and inclination (dip) filters used in the DES processing are designed based on the analysis of cores, borehole images, sonic logs, and VSPs (e.g., offset, walkaround, walkaway, and 3D VSPs). Moreover, the structural and tectonic history of the study area is also employed in the process of parameter optimization and assessment of the results obtained. The general DES processing tends to overlook quite a significant percentage of fracture clusters of various orientations and dimensions when the directional filter is kept open to all 360 of azimuth with a fixed range of features inclination. In such a situation, the DES processing tends to follow the strongest lateral discontinuities in the vertical plane caused by larger fracture clusters, and it skips over the less strong and weaker discontinuities or signatures of fracture clusters that are either of the same orientation or different orientations. To capture such discontinuities, the directional filter is divided into a number of windows/ranges and the inclination filter is set at one or more than one dip inclination range. DES processing is run separately for each set of directional and inclination filters. Each run of 2008 EAGE 109
3 technology feature first break volume 26, May 2008 Figure 2 Schematic showing the effect of azimuth filter on the extracted fracture clusters from the fracture sensitive 3D seismic attribute. The 3D cube of fracture clusters obtained through multiple azimuth filters gives more realistic picture fracture clusters (Model 2) than the one obtained through a single 360 azimuth filter (Model 1). Figure 3 A time slice from Middle Marrat showing fracture clusters orienting dominantly in NNE-SSW direction when the azimuthal filter is not constrained. DES gives a 3D volume cube of fracture cluster lineaments. Subsequently, these individual 3D cubes are merged into a single 3D volume cube (Figure 1) of fracture clusters that can be converted from time index to depth index. The workflow was applied to the sequence of Jurassic carbonates in five fields (NW Raudhatain, Raudhatain, Umm Niqqa, Sabriyah, and Bahra) located in the northern part of Kuwait. The Sabriyah field was selected as the key area for the study because of the maximum number of wells (four) drilled at the time of the study, new drilling, and a challenging structural setting (popped up structure caused by transpression along the east and west bounding strike-slip faults). In addition to the fracture evidence at the existing wells (X-3 and X-4, Figure 2), the newly drilled wells (X-5 and X-6, Figure 2) were used for the validation of the fracture clusters located by the DES on the seismic volume. Figure 3 shows mainly NNE-SSW trending fracture clusters at a certain horizon in the Middle Marrat carbonate reservoir, extracted by DES from the seismic volume. Fracture clusters of exactly the same orientation and inclination were observed in the 3D cube throughout the Marrat section. On the contrary, the borehole data at Well X-3 showed a large dominance of ENE- WSW striking fractures (more than 400 open fractures) within Marrat, in particular. When the DES process was applied to the same seismic attribute volume but with two different azimuthal filters ( , and , ), fracture clusters with NNE-SSW, ENE-WSE, NE-SW, NW-SE, and WNW-ESE strike got highlighted (Figure 4). The NNE-SSW striking fracture clusters most probably are fold-related being parallel to the axis of the Sabriyah anticline, and ENE- WSW and WNW-ESE striking fracture clusters, which are more concentrated within the Sabriyah anticline, are possible Riedel shears (Figure 4). The results were validated at the locations of existing wells and also at the new wells X5 and X-6. Figure EAGE
4 first break volume 26, May 2008 technology feature Figure 4 As observed in the borehole images, nearly all orientations of fracture clusters were detected from the 3D seismic by running DES for two different sets of parameters. Possibly fold related longitudinal fractures and strike-slip fault related riedel shear types of fracture clusters were detected with this technique. shows fracture clusters along a section through Wells X-2 and X-3 extracted by FCM technique using a and azimuth filter to enhance fracture clusters having strike orientations within that specific range of azimuth. It is clear from the plot that the Well X-3 does not intersect any fracture clusters over the interval from top Najmah to top Middle Marrat. It intersects a major fracture cluster in the interval from Middle Marrat to top Minjur (Figure 5). A similar observation was made in the wellbore using cores and borehole images as shown by the stick plot and fracture density (number of fractures per foot) curve for open fractures. In addition to the factors mentioned under the FCM workflow, resolution of the input seismic data is very important to highlight fracture clusters of larger to smaller dimensions. The FCM workflow was applied to the Q-Land seismic data from the NW- Raudhatain Field to determine how much improvement could be made in the details of fracture clusters. Figure 7 shows a comparison of FCM results from the conventional 3D surface seismic data with those derived from Q-Technology single-sensor data. A good correlation was observed between well productivity and the proximity of fracture clusters predicted by the FCM workflow. This shows that the acquisition of a fracture corridor map can be an essential element for the placement of injectors and producers to maximize recovery from a field. Possible origin of fracture corridors Whatever the real mechanism at microscopic scale, brittle failure of a rock occurs with respect to two modes at mesoscopic scale: the tensile and shear modes (Figure 7). The tensile mode (Mode 1) is a failure that occurs perpendicularly to the minimum principal stress without shear at the fracture plane. On the contrary, the shear failure 2008 EAGE 111
5 technology feature first break volume 26, May 2008 Figure 6 Comparison of FCM results between those derived using conventional 3D seismic and those obtained by using Q-Land seismic data at the NW-Raudhatain Field. Figure 5 A section through wells X-2 and X-3 showing fracture clusters extracted by the FCM technique using and filter to enhance ENE-WSW trending lineaments. The well X-3 does not intersect any fracture cluster over the interval from top Najmah to top Middle Marrat. While it intersects a major fracture cluster in the interval from Middle Marrat to top Minjur. A similar observation was made in the wellbore using cores and borehole images as shown by the stick plot and fracture density curve for open fractures. Figure 7 Mohr s representation in which limits between elastic and brittle domain and between tensile and shear failure are intrinsic property of the rock. (Mode 2) induces a plane oblique to the main stress. This plane necessarily suffers a displacement of one side of the fracture relative to the other. This displacement is very small at failure time. Every brittle rock can react both ways but not for the same state of stress. The limit between the tensile and shear modes is an intrinsic property of the rock, like the Mohr s envelop that limits the elastic and brittle domains. In many vertical wells, induced fractures due to perturbation of the present-day stresses by drilling illustrate this dual behaviour. They are either tensile or en echelon depending, on the lithology. Similarly, during a tectonic phase, the failure may occur tensile for one particular lithology or shear for another one. During the initiation phase of a standard fault, the failure in a shear layer develops along a single plane (Figure 8). The movement along this plane is resolved into a vertical throw and a horizontal elongation. This horizontal elongation necessarily induces a reduction of the minimum stress magnitude in the layers above and below. If these layers are tensile type, a number of vertical fractures, i.e. a fracture corridor, will eventually occur at the vertical of the fault zone. The sum of the apertures of the fractures will compensate for the elongation observed in the shear layer when the vertical throw is usually accommodated by a vertical displacement on a few of these EAGE
6 first break volume 26, May 2008 technology feature fractures. These vertical displacements are very difficult to observe on borehole images as the great number of fractures makes it difficult to follow a marker. Many corridors of this type have been observed in the Paleozoic series of Algeria (Figure 9). It is certainly a common situation but other origins may exist. Conclusion We have presented a workflow that allows us to map in 3D all major fracture corridors in a field. The workflow was successfully applied to the NW Raudhatain, Sabriyah, Umm Niqqa, and Bahra carbonate fields in Kuwait. Due to the limited seismic signature of some of the fracture corridors, best results are obtained when using high-resolution seismic technology. The presence of fracture corridors has often been put forward as a possible explanation for water breakthroughs that occur much earlier than initially anticipated. With 3D maps of fracture corridors becoming available, these can now be integrated in reservoir models to determine the optimum well locations using more realistic reservoir simulations. It is hoped that such a methodology (Montaron et al., 2007) will avoid water breakthrough surprises and, Figure 8 Fracture corridor development. Left: Fault (f) initiation in a shear layer (S) inducing a lateral elongation (E) in this layer and extensional stress zones (ESZ) in tensile layers where fractures are initiated. Right: fault propagation inducing a corridor of fractures whose aperture compensates for the fault elongation (E) and vertical displacement on few of these fracture to compensate the vertical throw on the fault (vt). more importantly, will help significantly increase hydrocarbon recovery factors in carbonate reservoirs and other naturally fractured formations. Acknowledgements The authors thank Kuwait Company for permission to publish this work and Donatella Astratti and Robert Godfrey for their invaluable contributions. References Akbar, M., Singh, S.K., Khan, B., Abu-Habbiel, H., Maizeret, P.D., Astratti, D., Sonneland, L., Pedersen, L.S., Bakiler, C. and Godfrey, R. [2008] An Innovative Approach to Characterizing Fractures for a Large Carbonate Field of Kuwait by Integrating Borehole Data with the 3D Surface Seismic GEO2008, Bahrain, Abstract Montaron, B.A.. Bradley, D., Cooke, A., Prouvost, L., Raffin, A., Vidal, A. and Wilt, M. Shapes of Flood Fronts in Heterogeneous Reservoirs and Oil Recovery Strategies. SPE/EAGE Reservoir Characterization & Simulation Conference, Paper Figure 9 Fracture corridor in quartzite developed on top of a small fault in shaly layers EAGE 113
NOTICE CONCERNING COPYRIGHT RESTRICTIONS
NOTICE CONCERNING COPYRIGHT RESTRICTIONS This document may contain copyrighted materials. These materials have been made available for use in research, teaching, and private study, but may not be used
More informationPractical Geomechanics
www.bakerhughes.com Practical Geomechanics Baker Hughes - RDS Geomechanics Services 2015 Baker Hughes Incorporated. All rights reserved Copyright By accepting these materials you agree that all materials
More informationtechnical article Satinder Chopra 1*, Kurt J. Marfurt 2 and Ha T. Mai 2
first break volume 27, October 2009 technical article Using automatically generated 3D rose diagrams for correlation of seismic fracture lineaments with similar lineaments from attributes and well log
More informationDISCRETE FRACTURE NETWORK MODELLING OF HYDRAULIC FRACTURING IN A STRUCTURALLY CONTROLLED AREA OF THE MONTNEY FORMATION, BC
DISCRETE FRACTURE NETWORK MODELLING OF HYDRAULIC FRACTURING IN A STRUCTURALLY CONTROLLED AREA OF THE MONTNEY FORMATION, BC Steve Rogers Golder Associates Ltd Pat McLellan McLellan Energy Advisors Inc Gordon
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 informationIntegrated Fracture Identification with Z-VSP and Borehole Images: A study from Cambay Basin
P-124 Integrated Fracture Identification with Z-VSP and Borehole Images: A study from Cambay Basin Sattwati Dey, Jubilant Energy; Chandramani Shrivastva, Schlumberger; Sreemanti Gijare*, Schlumberger;
More informationFracture characterization from scattered energy: A case study
Fracture characterization from scattered energy: A case study Samantha Grandi K., Sung Yuh, Mark E. Willis, and M. Nafi Toksöz Earth Resources Laboratory, MIT. Cambridge, MA. Total Exploration & Production.
More informationEnabling Technologies
Enabling Technologies Mechanical Modelling 1 Key Parameter Mineral System Exploration is reflected in scale-dependent translation A. Gradient in hydraulic potential B. Permeability C. Solubility sensitivity
More informationTh E Natural Fracture Prediction for Discrete Fracture Modelling
Th E103 01 Natural Fracture Prediction for Discrete Fracture Modelling H. Phillips* (Schlumberger), J.P. Joonnekindt (Schlumberger) & L. Maerten (Schlumberger) SUMMARY There are many uncertainties in the
More informationEnvironmental Science In-situ stress analysis using image logs
ISSN : 0974-7451 Volume 10 Issue 8 In-situ stress analysis using image logs ESAIJ, 10(8), 2015 [278-290] Mostafa Alizadeh*, Zohreh Movahed, Radzuan Bin Junin Faculty of Petroleum and Renewable Energy Engineering,
More informationElastic models of deformation in nature: why shouldn t we use the present day fault geometry?
Elastic models of deformation in nature: why shouldn t we use the present day fault geometry? B. Freeman 1, G. Yielding, 1 S.J. Dee 1, 2, & P.G. Bretan 1 1 Badley Geoscience Limited, UK 2 BP Exploration
More information11th Biennial International Conference & Exposition. Key Words: Geomechanical, Strain, Discrete Fracture Network (DFN), Slip stability
of Mumbai High Unconventional Basement Reservoir Sushil kumar*, Mayadhar Sahoo and S.K. Chakrabarti, KDMIPE, ONGC, India Sushilsingh72@gmail.com Key Words: Geomechanical, Strain, Discrete Fracture Network
More informationFocal Mechanism Analysis of a Multi-lateral Completion in the Horn River Basin
Focal Mechanism Analysis of a Multi-lateral Completion in the Horn River Basin Paige Snelling*, Cameron Wilson, MicroSeismic Inc., Calgary, AB, Canada psnelling@microseismic.com Neil Taylor, Michael de
More informationAn Open Air Museum. Success breeds Success. Depth Imaging; Microseismics; Dip analysis. The King of Giant Fields WESTERN NEWFOUNDLAND:
VOL. 7, NO. 4 2010 GEOSCIENCE & TECHNOLOGY EXPLAINED GEO EXPRO VOL. 7, NO. 4 2010 Success breeds Success geoexpro.com Country Profile: Senegal Ocean Bottom Node Seismic WESTERN NEWFOUNDLAND: An Open Air
More informationMicroseismicity applications in hydraulic fracturing monitoring
Available online atwww.scholarsresearchlibrary.com Archives of Applied Science Research, 2016, 8 (4):13-19 (http://scholarsresearchlibrary.com/archive.html) ISSN 0975-508X CODEN (USA) AASRC9 Microseismicity
More informationGeomechanics for reservoir and beyond Examples of faults impact on fluid migration. Laurent Langhi Team Leader August 2014
Geomechanics for reservoir and beyond Examples of faults impact on fluid migration Laurent Langhi Team Leader August 2014 Reservoir Geomechanics It is critical to understand the mechanical behaviour of
More informationBrittle Deformation. Earth Structure (2 nd Edition), 2004 W.W. Norton & Co, New York Slide show by Ben van der Pluijm
Lecture 6 Brittle Deformation Earth Structure (2 nd Edition), 2004 W.W. Norton & Co, New York Slide show by Ben van der Pluijm WW Norton, unless noted otherwise Brittle deformation EarthStructure (2 nd
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 informationApplication of Fault Response Modelling Fault Response Modelling theory
Application of Fault Response Modelling The Fault Response Modelling module in Move TM provides a geomechanical method for modelling fault-related deformation. The module calculates stress, strain and
More informationEAGE 4 TH Arabian Plate Geology Workshop December Abu Dhabi, UAE & SPWLA Kuwait Chapter meeting 29-Jan-2013
Structural and Stratigraphic Trapping of Hydrocarbons within Late Jurassic to Early Cretaceous Section as Observed from Drilling and 2-D/3-D Seismic in Partitioned/Divided Zone of Kingdom of Saudi Arabia/Kuwait
More informationInstituto De Ingenieros De Minas Del Peru
The Continuity Challenge Dr. Wayne Barnett The Interpretation! Great geological continuity? Huge potential? The Reality Not what it might seem... Not what it might seem... Presentation Objective Highlight
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 informationMicroseismic Geomechanical Modelling of Asymmetric Upper Montney Hydraulic Fractures
Microseismic Geomechanical Modelling of Asymmetric Upper Montney Hydraulic Fractures Drew Chorney, Byungtark Lee, Shawn Maxwell (IMaGE) Summary Geomechanical modelling is a powerful tool to quantitatively
More informationRole of lithological layering on spatial variation of natural and induced fractures in hydraulic fracture stimulation
Role of lithological layering on spatial variation of natural and induced fractures in hydraulic fracture stimulation Vincent Roche *, Department of Physics, University of Alberta, Edmonton roche@ualberta.ca
More informationKinematic inversion of pre-existing faults by wastewater injection-related induced seismicity: the Val d Agri oil field case study (Italy)
Kinematic inversion of pre-existing faults by wastewater injection-related induced seismicity: the Val d Agri oil field case study (Italy) Buttinelli M., Improta L., Bagh S., Chiarabba C. 1/10 The Val
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 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 informationPost-stack attribute-based fracture characterization: A case study from the Niobrara shale
Post-stack attribute-based fracture characterization: A case study from the Niobrara shale Geoffrey A. Dorn 1* and Joseph P. Dominguez 1 discuss the use of post-stack 3D seismic data to quickly define
More informationTu D Understanding the Interplay of Fractures, Stresses & Facies in Unconventional Reservoirs - Case Study from Chad Granites
Tu D201 04 Understanding the Interplay of Fractures, Stresses & Facies in Unconventional Reservoirs - Case Study from Chad Granites D. Lirong (Chinese National Petroleum Company Ltd. (Chad)), C. Shrivastava*
More informationP306 Seismic Velocity Anisotropy in the Illizi Basin of Eastern Algeria
P306 Seismic Velocity Anisotropy in the Illizi Basin of Eastern Algeria M. Wallace* (GX Technology), J. Maher (GX Technology), S. Schapper (GX Technology), B. Taylor (BP) & S.R. Tod (BP) SUMMARY The Tiguentourine
More informationSummary. Introduction
1540160 Using Microseismicity to Understand Subsurface Fracture Systems and Increase the Effectiveness of Completions: Eagle Ford Shale, TX John P. Detring 1 and Sherilyn Williams-Stroud 2 1. Analysis,
More informationMultifocusing 3D diffraction imaging for dectection of fractured zones in mudstone reservoirs
Multifocusing 3D diffraction imaging for dectection of fractured zones in mudstone reservoirs Alana Schoepp, Evgeny Landa, Stephane Labonte Shell Canada Ltd., Geomage, Shell CanadaLtd Summary Unconventional
More informationDownloaded 10/10/13 to Redistribution subject to SEG license or copyright; see Terms of Use at
Characterizing a fault-zone and associated fractures using lab experiments and attribute-based seismic analysis: an example from Woodford Shale, Anadarko basin, Oklahoma Zonghu Liao*, Ze ev Reches, and
More informationstress direction are less stable during both drilling and production stages (Zhang et al., 2006). Summary
Inversion and attribute-assisted hydraulically-induced microseismic fracture prediction: A North Texas Barnett Shale case study Xavier E. Refunjol *, Katie M. Keranen, and Kurt J. Marfurt, The University
More informationChapter 6. Conclusions. 6.1 Conclusions and perspectives
Chapter 6 Conclusions 6.1 Conclusions and perspectives In this thesis an approach is presented for the in-situ characterization of rocks in terms of the distribution of hydraulic parameters (called SBRC
More informationURTeC: Abstract
URTeC: 2902950 Can Seismic Inversion Be Used for Geomechanics? A Casing Deformation Example Jeremy J. Meyer 1*, Jeremy Gallop 1, Alvin Chen 1, Scott Reynolds 1, Scott Mildren 1 ; 1. Ikon Science Copyright
More informationGeomechanical controls on fault and fracture distribution with application to structural permeability and hydraulic stimulation
CSPG Luncheon Calgary February 5 th 2015 Geomechanical controls on fault and fracture distribution with application to structural permeability and hydraulic stimulation Scott Mildren - Ikon Science Australian
More informationPrinciples of 3-D Seismic Interpretation and Applications
Principles of 3-D Seismic Interpretation and Applications Instructor: Dominique AMILHON Duration: 5 days Level: Intermediate-Advanced Course Description This course delivers techniques related to practical
More informationAbstracts ESG Solutions
Abstracts ESG Solutions 2015-2016 For more information, please contact Melissa Hoy, Technical Marketing Coordinator at melissa.hoy@esgsolutions.com Visit us online at www.esgsolutions.com Abstract #1 Fracture
More informationEffect Of The In-Situ Stress Field On Casing Failure *
Effect Of The In-Situ Stress Field On Casing Failure * Tang Bo Southwest Petroleum Institute, People's Republic of China Lian Zhanghua Southwest Petroleum Institute, People's Republic of China Abstract
More informationDETAILED IMAGE OF FRACTURES ACTIVATED BY A FLUID INJECTION IN A PRODUCING INDONESIAN GEOTHERMAL FIELD
PROCEEDINGS, Thirty-Fourth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 9-11, 2009 SGP-TR-187 DETAILED IMAGE OF FRACTURES ACTIVATED BY A FLUID INJECTION
More informationSimultaneous Inversion of Clastic Zubair Reservoir: Case Study from Sabiriyah Field, North Kuwait
Simultaneous Inversion of Clastic Zubair Reservoir: Case Study from Sabiriyah Field, North Kuwait Osman Khaled, Yousef Al-Zuabi, Hameed Shereef Summary The zone under study is Zubair formation of Cretaceous
More informationInstantaneous Spectral Analysis Applied to Reservoir Imaging and Producibility Characterization
Instantaneous Spectral Analysis Applied to Reservoir Imaging and Producibility Characterization Feng Shen 1* and Gary C. Robinson 1, Tao jiang 2 1 EP Tech, Centennial, CO, 80112, 2 PetroChina Oil Company,
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 information6162 Upper Rhine Graben: 3D Seismic - A New Approach to Geothermal Exploration in a Structurally Complex Tectonic Enviroment
6162 Upper Rhine Graben: 3D Seismic - A New Approach to Geothermal Exploration in a Structurally Complex Tectonic Enviroment C. G. Eichkitz* (Joanneum Research), M.G. Schreilechner (Joanneum Research),
More informationractical Geomechanics for Unconventional Resources
P ractical Geomechanics for Unconventional Resources 24-26 October 2012, Calgary, Canada Practical Geomechanics for Unconventional Resources Nowadays, unconventional resources have been brought into the
More informationSeismic applications in coalbed methane exploration and development
Seismic applications in coalbed methane exploration and development Sarah E. Richardson*, Dr. Don C. Lawton and Dr. Gary F. Margrave Department of Geology and Geophysics and CREWES, University of Calgary
More informationLecture 6 Folds, Faults and Deformation Dr. Shwan Omar
Fold: A fold is a bend or wrinkle of rock layers or foliation; folds form as a sequence of ductile deformation. Folding is the processes by which crustal forces deform an area of crust so that layers of
More informationMicroseismic Aids In Fracturing Shale By Adam Baig, Sheri Bowman and Katie Jeziorski
AUGUST 2014 The Better Business Publication Serving the Exploration / Drilling / Production Industry Microseismic Aids In Fracturing Shale By Adam Baig, Sheri Bowman and Katie Jeziorski KINGSTON, ONTARIO
More informationIntegration of Seismic and Seismological Data Interpretation for Subsurface Structure Identification
Integration of Seismic and Seismological Data Interpretation for Subsurface Structure Identification Iftikhar Ahmed Satti, and Wan Ismail Wan Yusoff Abstract The structural interpretation of a part of
More information3D Finite Element Modeling of fault-slip triggering caused by porepressure
3D Finite Element Modeling of fault-slip triggering caused by porepressure changes Arsalan Sattari and David W. Eaton Department of Geoscience, University of Calgary Suary We present a 3D model using a
More informationLateral extrusion and tectonic escape in Ilan Plain of northeastern Taiwan
Lateral extrusion and tectonic escape in Ilan Plain of northeastern Taiwan Angelier, J., Chang, T.Y., Hu, J.C., Chang, C.P., Siame, L., Lee, J.C., Deffontaines, B., Chu, H.T, Lu, C.Y., Does extrusion occur
More informationAn Integrated approach for faults and fractures delineation with dip and curvature attributes
10 th Biennial International Conference & Exposition P 265 An Integrated approach for faults and fractures delineation with dip and curvature attributes Santosh, D.*, Aditi, B., Poonam, K., Priyanka S.,
More informationTushar Kanti Mistry*, Suryansh Suyash, Prabhat Ranjan,Santanu Mukherjee, S. Mahanti, D.K. Srivastava Frontier Basin, ONGC, Dehradun Keywords: SNL, Graben, Oblique fault. Abstract Occurrence of gas within
More informationTh Rock Fabric Characterization Using 3D Reflection Seismic Integrated with Microseismic
Th-17-01 Rock Fabric Characterization Using 3D Reflection Seismic Integrated with Microseismic M. Haege* (Schlumberger), S. Maxwell (Schlumberger), L. Sonneland (Schlumberger) & M. Norton (Progress Energy
More informationCall for Papers. Hydraulic Fracturing Special Issue
Call for Papers Hydraulic Fracturing Special Issue Hydraulic fracturing of ultra-low and low permeability reservoirs has become the hottest energy-related topic within the oil and gas community as well
More informationof other regional earthquakes (e.g. Zoback and Zoback, 1980). I also want to find out
4. Focal Mechanism Solutions A way to investigate source properties of the 2001 sequence is to attempt finding well-constrained focal mechanism solutions to determine if they are consistent with those
More informationUNIVERSITY OF PRETORIA Department of Geology STRUCTURAL GEOLOGY -GLY 254 SEMESTER EXAM
UNIVERSITY OF PRETORIA Department of Geology STRUCTURAL GEOLOGY -GLY 254 SEMESTER EXAM Copyright reserved 6 th June 2006 Time: 3 hours Internal examiner: Dr A.J. Bumby External examiner: Dr R. van der
More informationWe LHR3 06 Detecting Production Effects and By-passed Pay from 3D Seismic Data Using a Facies Based Bayesian Seismic Inversion
We LHR3 06 Detecting Production Effects and By-passed Pay from 3D Seismic Data Using a Facies Based Bayesian Seismic Inversion K.D. Waters* (Ikon Science Ltd), A.V. Somoza (Ikon Science Ltd), G. Byerley
More informationStress Damage in Borehole and Rock Cores; Developing New Tools to Update the Stress Map of Alberta
Stress Damage in Borehole and Rock Cores; Developing New Tools to Update the Stress Map of Alberta Qing Jia, University of Alberta, Edmonton qjia@ualberta.ca and Randy Kofman, University of Alberta, Edmonton
More informationCritical Borehole Orientations Rock Mechanics Aspects
Critical Borehole Orientations Rock Mechanics Aspects By R. BRAUN* Abstract This article discusses rock mechanics aspects of the relationship between borehole stability and borehole orientation. Two kinds
More informationA Petroleum Geologist's Guide to Seismic Reflection
A Petroleum Geologist's Guide to Seismic Reflection William Ashcroft WILEY-BLACKWELL A John Wiley & Sons, Ltd., Publication Contents Preface Acknowledgements xi xiii Part I Basic topics and 2D interpretation
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 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 informationSummary. Introduction
Time-lapse seismic data-calibrated geomechanical model reveals hydraulic fracture re-orientation Jorg V. Herwanger*, Farid R. Mohamed, Robert Newman (Schlumberger), and Ole Vejbæk (Hess) Summary The orientation
More informationSynthetic Seismogram A Tool to Calibrate PP & PS Seismic Data
P-475 Summary Synthetic Seismogram A Tool to Calibrate PP & PS Seismic P. Sugadha*, M. K. Jain, M. Singh, ONGC Conventional P wave technology will not meet all the requirements of the industry. Hence,
More informationIdentification of natural fractures and in situ stress at Rantau Dedap geothermal field
IOP Conference Series: Earth and Environmental Science PAPER OPEN ACCESS Identification of natural fractures and in situ stress at Rantau Dedap geothermal field To cite this article: Andika Artyanto et
More informationDownloaded 09/16/16 to Redistribution subject to SEG license or copyright; see Terms of Use at
Data Using a Facies Based Bayesian Seismic Inversion, Forties Field, UKCS Kester Waters* (Ikon Science Ltd), Ana Somoza (Ikon Science Ltd), Grant Byerley (Apache Corp), Phil Rose (Apache UK) Summary The
More informationEvaluation of Structural Geology of Jabal Omar
International Journal of Engineering Research and Development e-issn: 2278-067X, p-issn: 2278-800X, www.ijerd.com Volume 11, Issue 01 (January 2015), PP.67-72 Dafalla Siddig Dafalla * and Ibrahim Abdel
More information4D stress sensitivity of dry rock frame moduli: constraints from geomechanical integration
Title 4D stress sensitivity of dry rock frame moduli: constraints from geomechanical integration Authors Bloomer, D., Ikon Science Asia Pacific Reynolds, S., Ikon Science Asia Pacific Pavlova, M., Origin
More informationTECTONIC AND STRUCTURAL CONTROLS ON INTRUSION- RELATED DEPOSITS IN THE NORTHERN PART OF SREDNA GORA ZONE, BULGARIA NIKOLAY PETROV & KAMELIA NEDKOVA
TECTONIC AND STRUCTURAL CONTROLS ON INTRUSION- RELATED DEPOSITS IN THE NORTHERN PART OF SREDNA GORA ZONE, BULGARIA NIKOLAY PETROV & KAMELIA NEDKOVA INVESTIGATED AREA Praveshka Lakavica deposit Elatsite
More informationGeology for Engineers Rock Mechanics and Deformation of Earth Materials
89.325 Geology for Engineers Rock Mechanics and Deformation of Earth Materials Why do rocks break? Rock mechanics experiments a first order understanding. Faults and Fractures Triaxial load machine. a)
More informationAnswers: Internal Processes and Structures (Isostasy)
Answers: Internal Processes and Structures (Isostasy) 1. Analyse the adjustment of the crust to changes in loads associated with volcanism, mountain building, erosion, and glaciation by using the concept
More informationDownloaded 01/06/15 to Redistribution subject to SEG license or copyright; see Terms of Use at
Application of wide-azimuth 3D seismic attributes to predict the microfractures in Block MA area for shale gas exploration in South China Yusheng Zhang* 1, Gang Yu 1, Ximing Wang 1, Xing Liang 2, and Li
More informationSeismic techniques for imaging fractures, cracks and faults in the Earth. Michael Kendall
Seismic techniques for imaging fractures, cracks and faults in the Earth Michael Kendall Issues and Challanges Geometry (aspect ratio, size, orientation, density) Non-uniqueness (e.g., single set of aligned
More informationP066 Duplex Wave Migration for Coal-bed Methane Prediction
P066 Duplex Wave Migration for Coal-bed Methane Prediction N. Marmalevskyi* (Ukrainian State Geological Prospecting Institute), A. Antsiferov (UkrNIMI), Z. Gornyak (Ukrainian State Geological Prospecting
More informationChapter 15 Structures
Chapter 15 Structures Plummer/McGeary/Carlson (c) The McGraw-Hill Companies, Inc. TECTONIC FORCES AT WORK Stress & Strain Stress Strain Compressive stress Shortening strain Tensional stress stretching
More information11th Biennial International Conference & Exposition
Analysis of Cleats in Coal Bed Methane wells from Micro Resistivity Image and Cross Dipole Array Acoustic Log Muhammad Ali* (ONGC), Partho Sarathi Sen (ONGC) Email ID: muhammadali_nzr@yahoo.co.in Keywords
More informationMonitoring induced microseismic events usually
SPECIAL M i c r SECTION: o s e i s m M i ci c r o s e i s m i c Beyond the dots in the box: microseismicity-constrained fracture models for reservoir simulation Leo Eisner, Sherilyn Williams-Stroud, Andrew
More informationStructural Interpretation of Dipmeter Log A Case Study from Baramura Field of Tripura
Structural Interpretation of Dipmeter Log A Case Study from Baramura Field of Tripura T. Chattopadhyay* and D. K. Ghosh Petropysics Division, KDMIPE, ONGC, Dehradun India Summary Dipmeter logging tool
More informationGas Shale Hydraulic Fracturing, Enhancement. Ahmad Ghassemi
Gas Shale Hydraulic Fracturing, Stimulated Volume and Permeability Enhancement Ahmad Ghassemi Tight Gas A reservoir that cannot produce gas in economic quantities without massive fracture stimulation treatments
More informationStructural Modelling of Inversion Structures: A case study on South Cambay Basin
10 th Biennial International Conference & Exposition P 065 Structural Modelling of Inversion Structures: A case study on South Cambay Basin Dr. Mayadhar Sahoo & S.K Chakrabarti Summary The inversion in
More informationractical Geomechanics for Oil & Gas Industry
P ractical Geomechanics for Oil & Gas Industry Practical Geomechanics for Oil and Gas Industry The integrity of the wellbore plays an important role in petroleum operations including drilling, completion
More informationReprinted From. Volume 03 Issue 03-JulY 2010
Reprinted From Volume 03 Issue 03-JulY 2010 1 Well arranged receivers for better definition Kim Gunn Maver, Henry Menkiti, Mark McCallum and Uwe Rinck, Schlumberger, France, UK and Canada, assess the benefits
More informationThe Frictional Regime
The Frictional Regime Processes in Structural Geology & Tectonics Ben van der Pluijm WW Norton+Authors, unless noted otherwise 1/25/2016 10:08 AM We Discuss The Frictional Regime Processes of Brittle Deformation
More informationGG303 Lecture 17 10/25/09 1 MOHR CIRCLE FOR TRACTIONS
GG303 Lecture 17 10/5/09 1 MOHR CIRCLE FOR TRACTIONS I Main Topics A Stresses vs. tractions B Mohr circle for tractions II Stresses vs. tractions A Similarities between stresses and tractions 1 Same dimensions
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 informationMain Means of Rock Stress Measurement
Real Stress Distributions through Sedimentary Strata and Implications for Reservoir Development and Potential Gas and Coal Development Strategies Ian Gray Sigra Pty Ltd 93 Colebard St West, Acacia Ridge,
More informationOptimizing Drilling Performance by Wellbore Stability and Pore-Pressure Evaluation in Deepwater Exploration T. Klimentos, Schlumberger
IPTC 10933 Optimizing Drilling Performance by Wellbore Stability and Pore-Pressure Evaluation in Deepwater Exploration T. Klimentos, Schlumberger Copyright 2005, International Petroleum Technology Conference
More informationJocelyn Karen Campbell
THE UNCERTAINTIES IN ASSESSING THE IMPACT OF REGIONAL SEISMICITY AT THE WIL SITE Statement of Evidence by Jocelyn Karen Campbell A CANTERBURY FAULTS coded by type CHARACTERISTICS OF THRUST FAULTS IN CANTERBURY
More informationLab 7: STRUCTURAL GEOLOGY FOLDS AND FAULTS
Lab 7: STRUCTURAL GEOLOGY FOLDS AND FAULTS This set of labs will focus on the structures that result from deformation in earth s crust, namely folds and faults. By the end of these labs you should be able
More informationNumerical Simulation and Multiple Realizations for Sensitivity Study of Shale Gas Reservoir
SPE 141058 Numerical Simulation and Multiple Realizations for Sensitivity Study of Shale Gas Reservoir A.Kalantari-Dahaghi, S.D.Mohaghegh,SPE, Petroleum Engineering and Analytic Research Laboratory(PEARL)
More informationGeomechanical Modelling of the Mount Isa Copper Deposit
Geomechanical Modelling of the Mount Isa Copper Deposit John G McLellan 1, 2, Rhonda O Sullivan 3, Brad Miller 4, Daniel Taylor 5 1. Principal Geoscience Consultant, GMEX, John@gmex.com.au. 2. Adjunct
More informationA fresh look at Wellbore Stability Analysis to Sustainable Development of Natural Resources: Issues and Opportunities
A fresh look at Wellbore Stability Analysis to Sustainable Development of Natural Resources: Issues and Opportunities Dr.Parag Diwan, Dr.B.P.Pandey, Dharmendra Kumar Gupta*, Suresh Ayyappan Department
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 informationVolumetric curvature attributes for fault/fracture characterization
first break volume 25, July 2007 technical article Volumetric curvature attributes for fault/fracture characterization Satinder Chopra 1 and Kurt J. Marfurt 2 Introduction Seismic attributes have proliferated
More informationFull-Azimuth 3-D Characterizes Shales
JULY 2013 The Better Business Publication Serving the Exploration / Drilling / Production Industry Full-Azimuth 3-D Characterizes Shales By Duane Dopkin, Joanne Wang and Shiv Pujan Singh HOUSTON Shale
More informationEngineering Geophysical Application to Mine Subsidence Risk Assessment
Engineering Geophysical Application to Mine Subsidence Risk Assessment By: Kanaan Hanna, Sr. Mining Engineer Steve Hodges, Sr. Geophysicist Jim Pfeiffer, Sr. Geophysicist Dr. Keith Heasley, Professor West
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 informationUsing Curvature to Map Faults, Fractures
Using Curvature to Map Faults, Fractures by SATINDER CHOPRA and KURT J. MARFURT Editor s note: Chopra is with Arcis Corp., Calgary, Canada; Marfurt is with the University of Oklahoma. Both are AAPG members.
More information