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The AAPG/Datapages Combined Publications Database

Showing 252 Results. Searched 195,364 documents.

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Abstract: Rank Reduction Processing of 3-D Prestack Seismic Data for the Geomechanical Inversion of an Unconventional Reservoir and its Caprock, Moncton Basin, Canada; #90310 (2017)

Mathieu J. Duchesne, Gilles Bellefleur, Nicolas Pinet, Virgina I. Brake

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... of the Zoeppritz equations shows that relatively small variations in P-impedance, S-impedance and density at the interface of two geological media can...


Experience with Seismic Lithology (AVO) in Central Sumatra

Jeff Wright, Isdjulaedi Bakri, Budi Subiyanto

Indonesian Petroleum Association

... (Appendix). Reflection coefficients for plane P- waves incident at the top and bottom of the shale-sand-shale layer are calculated as a function...


Correlation Data as an Aid in Fault Interpretation: A Case Study

E. R. Telatovich

Geological Society of Malaysia (GSM)

..." (or even the Zoeppritz equations to geophysicists), the mathematics of correlation or semblance are not particularly difficult and yet offer little...


Abstract: Determination of AVO Attributes for Acoustic Impedance Zones of Malay Basin: Fluid Factors (Geophysics Poster 22)

Uzir Alimat, T. L Goh, Shaidin Arshad, M. Izzuljad Ahmad Fuad

Geological Society of Malaysia (GSM)

... (ΔF =1.252A+0.580B) was derived from the combination of two well known equations i.e. Castagna mudrock equation and Gardner equation. The indicator...


Pre-Stack Calibration to Well Data: Intercept & Gradient Scaling … A Case Study From the Norwegian North Sea

Nguyen Nam, Larry Fink

Indonesian Petroleum Association

... been applied. Gradient is the slope of a trend line on a plot of offset amplitude vs. sine squared of the incident angle at a given time sample...


Quantitative seismic interpretations to detect biogenic gas accumulations: a case study from Qaidam Basin, China

Yexin Liu, Zhuoheng Chen, Liqun Wang, Yongshu Zhang, Zhiqiang Liu, Yanhua Shuai

CSPG Bulletin

.... Although several objective functions are available, the seismic Zoeppritz reflectivity approximation equations are too complex to mathematically calculate...


Polynomial Amplitude versus Azimuth Inversion in Horizontally Transverse Isotropic Media, as Tested on Fractured Coal Seams in the Surat Basin

Joseph Kremor, Randall Taylor, Khalid Amrouch

Australian Petroleum Production & Exploration Association (APPEA) Journal

...: Tusla, OK.) Shuey, R. (1985). A simplification of the Zoeppritz equations. Geophysics 50, 609–614. doi:10.1190/1.1441936 Thomsen, L. (1986). Weak...


A cross-shape deep Boltzmann machine for petrophysical seismic inversion

Son Dang Phan and Mrinal K. Sen

AAPG Bulletin

... is typically calculated using the Zoeppritz equation (Zoeppritz, 1919) or its linearized version, such as the Aki–Richards approximations (Aki and Richards...


Abstract: Unconventional Reservoir Characterization Using Conventional Tools; #90224 (2015)

Ritesh K. Sharma and Satinder Chopra

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... offset gathers, Fatti’s approximation to the Zoeppritz equations can be used to compute P-reflectivity, S-reflectivity, and density which depends...


Reservoir Characterisation Through Integrated AVO, AI and EI Inversion

Andy Furniss

Indonesian Petroleum Association

... sands, Geophysics, v. 54, pp. 680-688. Shuey, R.T., 1985. A simplification of the Zoeppritz equations, Geophysics, v. 50, pp. 609-614. Simmons, J.L....


Frac Hit Prevention and Engineered Treatment Design in the Permian Basin Using In-Situ Stress from 3D Seismic

Michael Shoemaker, James Hawkins, John Becher, Veronica Gonzales, Sandeep Mukherjee, Reza Garmeh, David Kuntz

Unconventional Resources Technology Conference (URTEC)

... equation) historically used to calculate minimum horizontal stress: Sh = υ (Sv (1−υ) − αPp ) + αPp , (1) where Sh equals the induced stress...


Optimized characterization workflow for naturally fractured reservoirs using seismic anisotropy attributes in the Middle Magdalena Valley basin, Colombia

Oscar Moreno, Enrique Casaña, Luis Figuera, Iván Higuera, Diego García, Jorge Acosta, Benjamin Roure

International Meeting for Applied Geoscience and Energy (IMAGE)

... for AVAZ analysis in HTI Media The Rüger approach modifies Zoeppritz’s AVO isotropic linearized reflectivity equation, incorporating an additional term...


Abstract: The Evolving Role of Geophysics in Exploration. From Amplitudes to Geomechanics (Paper C7)

E. C. Andersen, D. Gray

Geological Society of Malaysia (GSM)

...) observed that seismic amplitudes changed with offset in the presence of gas. The Zoeppritz equations provide an explanation for this effect, especially...


Abstracts: The Evolving Role of Geophysics in Exploration: From Amplitudes to Geomechanics; #90173 (2015)

Eric Andersen, David Gray

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... amplitudes changed with offset in the presence of gas. The Zoeppritz equations provide an explanation for this effect, especially through the use...


AVO Inversion in Marine Gas Hydrate Studies; #41603 (2015)

Marc-André Chen, Stan Dosso, George Spence, Michael Riedel, Roy Hyndman

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... saturation in the upper media, and partial free-gas saturation in the lower media. Using Zoeppritzequations, synthetic reflection coefficient vs. incidence...


Seismic Data Preconditioning for Improved Reservoir Characterization (Inversion and Fracture Analysis); #41347 (2014)

Darren Schmidt, Alicia Veronesi, Franck Delbecq, and Jeff Durand

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... synthetics are then compared to the real seismic gather. Reservoir characterization techniques are based on the Zoeppritz equations (or their approximations...


An Empirical Study of the Generalized Fluid Method for Hydrocarbon Discrimination

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... indicators, or DHI) from AVO (Amplitude Variations with Offset) equations. The main idea behind these methods is to use the linearized Zoeppritz...


Lithology Identification Using Amplitude Variations with Offset: Examples from South Sumatra

Soman Chacko

Indonesian Petroleum Association

... Sumatra. BORTFELD, R, 1961. Approximations to the reflection and transmission coefficients of plane longitudinal and transverse waves. Geophysical...


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