Developing a strategy for CO<sub>2</sub> EOR in an unconventional reservoir using 3D seismic attribute workflows and fracture image logs

Wilson, Thomas H.; Smith, Valerie; Brown, A. D. Fitton

doi:10.1190/segam2013-0609.1

Cited by 7 publications

(6 citation statements)

References 4 publications

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“…They used a neural network approach to model fracture trends throughout the field. Wilson et al (2009Wilson et al ( , 2012bWilson et al ( , 2013 developed the poststack processing workflow used in this study to extract discontinuities from the 3D seismic data. Wilson et al (2013) converted the Teapot Dome 3D seismic to depth using synthetic seismic well ties, time surfaces, and formation top depths to constrain the depth conversion process.…”

Section: D Seismic Analysismentioning

confidence: 99%

“…The poststack processing workflow developed by Wilson et al (2009Wilson et al ( , 2012bWilson et al ( , 2013 was used to enhance the Teapot Dome 3D migrated-stack two-way time data. Comparison of final migrated-stack data ( Figure 16A) to enhanced output in the depth-domain reveals that the poststack processing workflow uncovers additional structural and stratigraphic details ( Figure 16B).…”

Section: Seismic Discontinuitiesmentioning

confidence: 99%

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Developing a model discrete fracture network, drilling, and enhanced oil recovery strategy in an unconventional naturally fractured reservoir using integrated field, image log, and three-dimensional seismic data

Wilson¹,

Smith²,

Brown³

2015

Bulletin

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In this study, we develop a model discrete fracture network (DFN) for the unconventional, naturally fractured Tensleep Sandstone oil reservoir at Teapot Dome, Wyoming. Reservoir characterization is based on three-dimensional (3D) seismic data, fracture image logs from Teapot Dome, and field observations of the Tensleep exposure in the Alcova anticline and Fremont Canyon areas. Image logs reveal that the dominant reservoir fracture set trends parallel to the present-day maximum horizontal compressive stress (S Hmax ) inferred from drilling induced fractures. Analog field studies of the Alcova anticline and Fremont Canyon suggest fracture heights and lengths are power-law distributed, while the fracture spacing distribution is best described as log-normal. Image-log-derived fracture apertures are also log-normally distributed. These properties are incorporated into a model DFN. We assume subseismic folds, faults, and fracture zones control fracture intensity distribution and use composite 3D seismic attributes to locate subtle changes in seismic response interpreted to result from subseismic structure. Directional curvature defines aperture-opening strain normal to the dominant reservoir fracture set. Seismic attributes are scaled and combined to control fracture intensity variations in the model. Grid-cell porosity and permeability distributions derived from the DFN suggest the presence of northeast-southwest-trending reservoir compartments. We suggest

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Section: D Seismic Analysismentioning

confidence: 99%

Section: Seismic Discontinuitiesmentioning

confidence: 99%

Developing a model discrete fracture network, drilling, and enhanced oil recovery strategy in an unconventional naturally fractured reservoir using integrated field, image log, and three-dimensional seismic data

Wilson¹,

Smith²,

Brown³

2015

Bulletin

Self Cite

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“…Previous fracture studies of the Tensleep Formation include analog field studies at Alcova Anticline (Gilbertson, 2006) and Fremont Canyon (Zhang, 2005;Wilson et al, 2013bWilson et al, , 2015. Seismic attribute analyses have been carried out by Ouenes et al (2010), Gao (2013), Wilson et al (2012Wilson et al ( , 2013aWilson et al ( , 2013bWilson et al ( , 2015, Di andGao (2014), andThachaparambil (2015). A study of open fractures seen on five image logs through the Tensleep Formation was done by Schwartz (2006).…”

Section: Introductionmentioning

confidence: 97%

Interpretation of fractured zones using seismic attributes — Case study from Teapot Dome, Wyoming, USA

Schneider

Eichkitz²,

Schreilechner³

et al. 2016

Interpretation

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We have used poststack seismic attributes to describe the fracture network of the naturally fractured Tensleep Formation at Teapot Dome, Wyoming, USA. The attributes include coherence, coherence based on spectral decomposed seismic data, attributes based on curvature, and textural attributes based on the gray-level co-occurrence matrix (GLCM). Results were compared with image log interpretations of four wells. Seismic attribute analysis allowed determination of strikes and dips as well as the intensity of fractures. The GLCMbased attributes proved especially valuable for building a discrete fracture network.

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“…The dominant frequency of the wavelet extracted from the SSB cube within the reservoir zone is 60 Hz and significantly higher than the dominant frequency derived from the input migrated stacked data of 44 Hz (Figure 2-5). Following the SSB step, the cube was depth converted using the velocity model developed by Wilson et al (2013).…”

Section: Methodsmentioning

confidence: 99%

Reservoir Characterization and Flow Simulation for CO 2-EOR in the Tensleep Formation Using Discrete Fracture Networks, Teapot Dome, Wyoming

Ghahfarokhi¹

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simulation. The history matching section covers the simulation of the field production history and provides an input for CO2-EOR simulation. The streamline simulation section includes visualization of streamlines in the history matched model. Thereafter, a CO2-EOR analysis is presented followed by a conclusions section. Finally, some recommendations are presented that could improve the accuracy of the model.

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Developing a strategy for CO₂ EOR in an unconventional reservoir using 3D seismic attribute workflows and fracture image logs

Cited by 7 publications

References 4 publications

Developing a model discrete fracture network, drilling, and enhanced oil recovery strategy in an unconventional naturally fractured reservoir using integrated field, image log, and three-dimensional seismic data

Developing a model discrete fracture network, drilling, and enhanced oil recovery strategy in an unconventional naturally fractured reservoir using integrated field, image log, and three-dimensional seismic data

Interpretation of fractured zones using seismic attributes — Case study from Teapot Dome, Wyoming, USA

Reservoir Characterization and Flow Simulation for CO 2-EOR in the Tensleep Formation Using Discrete Fracture Networks, Teapot Dome, Wyoming

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Developing a strategy for CO2 EOR in an unconventional reservoir using 3D seismic attribute workflows and fracture image logs

Cited by 7 publications

References 4 publications

Developing a model discrete fracture network, drilling, and enhanced oil recovery strategy in an unconventional naturally fractured reservoir using integrated field, image log, and three-dimensional seismic data

Developing a model discrete fracture network, drilling, and enhanced oil recovery strategy in an unconventional naturally fractured reservoir using integrated field, image log, and three-dimensional seismic data

Interpretation of fractured zones using seismic attributes — Case study from Teapot Dome, Wyoming, USA

Reservoir Characterization and Flow Simulation for CO 2-EOR in the Tensleep Formation Using Discrete Fracture Networks, Teapot Dome, Wyoming

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Developing a strategy for CO₂ EOR in an unconventional reservoir using 3D seismic attribute workflows and fracture image logs