Groundwater Quality Implications of Bank-Storage in a Crystalline-Rock Setting

James R. Mayer, Jonathan Brinson, Barry George

Environmental Geosciences (DEG)

... storage effect. Water Resources Res, 26, 2769–2775. Hvorslev, M. J. (1951). Time lag and soil permeability in groundwater observations: U.S....

Upscaling acoustic wave equation using renormalization group theory

Ajay Malkoti, Shravan M. Hanasoge, Rene Edouard Plessix

International Meeting for Applied Geoscience and Energy (IMAGE)

... parameters. Effective or coarse representations of fine-scale model variations may have reduced symmetry, i.e., they contain extrinsic/layered anisotropy...

Some Observations on Deformation, Crustal Shortening, and Uplift in the Canadian Rocky Mountains

H. A. K. Charlesworth

CSPG Bulletin

... principal stresses) is zero and no effect other than dilatation occurs. Once one of the principal stresses differs from the other two, the strata enter...

Microtectonics of the Kootenay Formation Near Fernie, British Columbia

D. K. Norris

CSPG Bulletin

... would suggest that the layering of the medium may be exerting Figure 8. Effect of Planar Anisotropy on the Angle of Shear Failure at the Coal-Rock...

Efficient, Low-Risk, Comprehensive Geological Characterization of Lateral Wells to Optimize Completion Performance

Dean Fratarcangeli, Tammy Alcorn, Patrick McBride, Andy Wray, Elia Haddad, Robert Laronga, Nasar Khan

Unconventional Resources Technology Conference (URTEC)

... the productivity of unconventional reservoirs. Horizontal and pronounced vertical mechanical anisotropy exist in most unconventional plays. Both through-going...

Petroleum System in the Khmer Trough, Cambodia

Akihiko Okui, Akinori Imayoshi, Kohsuke Tsuji

Indonesian Petroleum Association

... to consider maturity effect in the diagram used for this study, because S2 is converted to S1 with maturity. This modification is valid before...

Horizontal Well Evaluation to Determine Geological Facies, Mechanical Properties, and Natural Fracture Changes Using Slim Through-the-Bit Dipole Sonic and Oil-Based Microimaging Tools

Edgar Velez, Elia Haddad, Firas Al Shaikh, Ghada Barbour, Kyle Barrie

Unconventional Resources Technology Conference (URTEC)

... the reservoir’s heterogeneity and its effect on its rock quality. The benefit is identification of better hydraulically frackable zones amongst the best...

Characterization of a Sediment Core from Potential Gas-hydrate-bearing Reservoirs in the Sagavanirktok, Prince Creek, and Schrader Bluff Formations of Alaska's North Slope: Part 5Acoustic Velocity Core Studies

R. F. Sigal, C. Rai, C. Sondergeld, B. Spears, W. J. Ebanks Jr., W. D. Zogg, N. Emery, G. McCardle, R. Schweizer, W. G. McLeod, J. Van Eerde

AAPG Special Volumes

... is 2170 m/s (7119 ft/s). No significant shear-wave anisotropy was observed. The trend of decreasing velocity with increasing temperature is weak. Based...

Repurposing Legacy Seismic Reflection Data in Support of Aquifer Characterization in Texas

Thomas E. Ewing, Cody H. Draper, Daniel M. Lupton

GCAGS Transactions

... detailed information on fractures and related anisotropy could be acquired from 3D seismic surveys. Karst development is also identifiable in 2D and 3D...

Soft-sediment Deformation Fabric in the Precambrian Bhander Oolite, Central India

Soumen Sarkar , S. K. Chanda, Ajit Bhattacharyya

Journal of Sedimentary Research (SEPM)

... at their surfaces by inwardly growing prismatic and needle-shaped calcite crystals which remain virtually free from any effect of deformation. Recalcitization...

Finding Bypassed Oil in a Mature Field -- Casabe Field, Middle Magdalena Valley Basin, Colombia.

J. Peralta-Vargas, G. Cortes, W. Gambaretto, L. Martinez Uribe, F. Escobar, M. Markley, A. Mesa Cardenas, A. Suter, L. Marquez, M. Dederle, E. Lozano G.

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... in Figure No.12 shows the effect of 60% silt laminations on 40% clean oil sand reducing the resistivity of the formation from 50 ohms to 3 ohms as seen...

Influence of bentonite layers on the quality of prospective Silurian-Ordovician shale formations in the Baltic Basin, Poland

Radomir Pachytel

International Meeting for Applied Geoscience and Energy (IMAGE)

... capacity of that rocks. The large percentage of clay minerals, including highly swellable smectites, will have a negative effect on the propagation...

High Frequency Full Waveform Inversion as an Interpretation Solution

Laurence Letki, Matt Lamont, Troy Thompson

Australian Petroleum Production & Exploration Association (APPEA) Journal

... from the details captured in between the existing wells: information otherwise unknown that has a direct effect on both the imaging and depth...

Geostatistical Modeling and Reservoir Simulations of Reservoirs in the Greater Monument Butte Region, Uinta Basin, Utah

Milind D. Deo, Rajesh J. Pawar, John E. Dyer

Montana Geological Society

... for D1-sands was omni-directional (the lateral anisotropy was 1.0) and had two nested structures, a spherical component with correlation length...

3D CSEM acquisition and inversion for appraisal of deepwater gas field

Jun Cai, Friedrich Roth, Claudia Twarz, Shenghui Li, Elias Andre Nerland, Juan-Mauricio Florez-Niño, Marjorie Nogueira, David Lippett, Kerry Nicholas, Sholan Ramnath

International Meeting for Applied Geoscience and Energy (IMAGE)

... zero dip (VTI anisotropy) leads to imaging artifacts, which directly equate to risk of misinterpretation. A unique feature of our TTI inversion...

Machine Learning Prediction and the Impact of CO₂ Injection on S-Wave in 20 Years in the Legacy Well Field

Sharif Morshed, Shafiqul Alam Khan, Wu Hao

Unconventional Resources Technology Conference (URTEC)

...., http://dx.doi.org/10.1002/gdj3.191 Hamid A., Yuefeng S. 2014, Rock-physics-based estimation of critical-clay-volume fraction and its effect on seismic...

Imaging Beneath Gas - A Prestack Depth Migration Case Study (Paper 34)

Osman Khan, Uwe Klein-Helmkamp, Peter Whiting, Tim Chapman

Geological Society of Malaysia (GSM)

... thereby affecting the acoustic wavefront traveling through them. We start seeing the effect of gas on seismic in our project area just 250m below the water...

AAPG Asia Pacific Region GTW, Pore Pressure & Geomechanics: From Exploration to Abandonment

Search and Discovery.com

Role of Clay Diagenesis in Hydrocarbon Accumulation in Shale Reservoirs of Sanand Field, Cambay Basin, Gujarat, India: A Case Study; #20085 (2010)

Kamal K. Das, Bharti Jagtap, J. K. Srivastava, Sanjiv Satyarthi, Neelam Niranjan

Search and Discovery.com

... and has high capillary bound (irreducible) water. A coexisting system of larger pores may contain high hydrocarbon saturation. The electrical effect...

Integrated Geological and Engineering Studies in Support of Producing Light Oil from a Frozen Reservoir: A Case Study from Umiat Oil Field, Northern Alaska; #20097 (2011)

C. Hanks, J. Mongrain, A. Dandekar, P. McCarthy, V. Godabrelidze, C. Shukla, K. Venepalli, O. Levi-Johnson, G. Shimer, R. Wentz, J. Davis

Search and Discovery.com

... fractures associated with the folding may impart a permeability anisotropy to the reservoir. If so, these fractures could be utilized to enhance...

Petrophysical Study of UAE Carbonates, #50700 (2012)

Anita Bhagat, Carl Sondergeld

Search and Discovery.com

..., there have been few laboratory experiments to analyze and understand the complex pore system of carbonates and its effect on petrophysical properties...

Fault Damage Zones-Observations, Dynamic Rupture Modeling and Implications on Fluid Flow; #41249 (2013)

Madhur Johri, Mark Zoback, Eric M. Dunham, and Peter Hennings

Search and Discovery.com

..., CA 3 Subsurface Technology, ConocoPhillips, Houston, TX 2 Abstract We present a methodology that accounts for the effect of permeability heterogeneity...

Natural Fractures in Shale Hydrocarbon Reservoirs; #41487 (2014)

Julia F.W. Gale

Search and Discovery.com

... with respect to reservoir stress directions, and the strength of the fracture plane relative to intact host rock. We tested the effect of calcite-sealed...

Natural fracture characterization in tight gas sandstones: Integrating mechanics and diagenesis

Jon E. Olson, Stephen E. Laubach, Robert H. Lander

AAPG Bulletin

..., 1982, Formation and interpretation of dilatant echelon cracks: Geological Society of America Bulletin, v. 93, p. 12911303.Prats, M., 1981, Effect...

Subsurface Plumbing of the Crayfish Group in the Penola Trough: Otway Basin

P. J. Boult, P. Lyon, B. Camac, D. Edwards, D. M. McKirdy

Petroleum Exploration Society of Australia (PESA)

.... Pretty Hill Sandstone core data (Redman-!). From left to right. CMR pore size distribution Jog showing the effect of diagenetic overprint. Facies Log...