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The AAPG/Datapages Combined Publications Database
Showing 527 Results. Searched 200,357 documents.
Elastic Anisotropy of Shales Revisited; #41557 (2015)
Marina Pervukhina, Patrick N. J. Rasolofosaon
Search and Discovery.com
.../diagenesis. Definition of the Considered Anisotropic Parameters All the considered rock samples are assumed transversely isotropic (TI...
2015
Characterizing seismic anisotropy and AVO using walkaway VSP: Willow oilfield, Alaska
Manish Lal Khaitan, Ali Sayed, Shujaat Ali, Trey Wagner, Jonathan Scorer, Brett Wendt
International Meeting for Applied Geoscience and Energy (IMAGE)
... the slowness-polarization curve. Intrinsic anisotropic parameters, as described by Thomsen (1986), are Figure 2: Slowness curves constructed for receiver 10...
2022
Machine learning-based anisotropy characterization of Wolfcamp shales in the Midland Basin
Jaewook Lee, David E Lumley
International Meeting for Applied Geoscience and Energy (IMAGE)
... shale-specific reservoir properties more accurately. In general, we can quantify the elastic stiffness coefficients and Thomsen anisotropy parameters...
2022
Case Study: Can We Use Angle Gathers to Detect Fracture Distribution of Carbonate Reservoir in Rama Field?
Zha Chaoyang, Sun Pengxiao, Shen Xiaohong, Wen Shuliang, Tang Donglin, Heng Liqun
Indonesian Petroleum Association
...) showed that for weakly anisotropic materials the velocities can be written as follows, where , , and are called Thomsen’s parameters. VP...
2013
ABSTRACT: Anisotropic PP and PSv Prestack Depth Migration of 4C _OBC_ Seismic Data, Pamberi, Offshore Trinidad
Tony Johns, Carmen Vito and Raul Sarmiento
Geological Society of Trinidad & Tobago
... a qualitative correlation between derived parameters and attributes from P and Sv anisotropic migration velocities and known regional geology...
2007
Abstract: 3D–3С Full-Wave Modeling in Anisotropic 2.5D Medium; #90171 (2013)
A. Kostyukevych, N. Marmalevskyi, Y. Roganov, and V. Tulchinsky
Search and Discovery.com
... in 2.5D modeling. Let us have a model consisting of two HTI anisotropic layers with the following parameters: the upper layer anisotropic axis...
2013
New stability constraints for pseudo-acoustic finite difference TTI modelling and inversion
Rodrigo Fuck, Lorenzo Casasanta, Marcel Nauta
International Meeting for Applied Geoscience and Energy (IMAGE)
... that the Thomsen parameters throughout the model satisfy the condition that (𝜀 − 𝛿) ≥ 0, which is not always true in practice. Usually, one...
2024
ABSTRACT: Imaging Through Gas Clouds: Case Histories from the Gulf of Mexico; #90007 (2002)
Knapp, Steve, Nigel Payne, Tony Johns
Search and Discovery.com
... the optimal parameters of the Vp/Vs ratio (γ) will be discussed. Finally, images from both the compressional (P and Z components summed) and converted shear...
Unknown
2D Survey Earth Model Building and Depth Imaging Using 3D Grid-Based Tomography Technology
Eric Pearson, Suyang Chen
Indonesian Petroleum Association
..., the four layers were parameterized with constant Thomsen ε and δ parameters derived from interval Eta (η) from raytraced time domain analysis. The Eta (η...
2012
Anisotropic Pre-Stack Depth Migration in the Cusiana and Cupiagua Sur Fields
J. Checa, M. Mesa, N. Burke, J. Calderon, H. Alfonso, U. Egozi, B. Ver West, M. Yates
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... ANISOTROPIC CONSIDERATIONS Anisotropy was addressed using Thomsen’s approach (Thomsen, 1986), in which four parameters are required, besides the vertical...
2006
Abstract: 3D, Anisotropic Phase Shift Operators; #90171 (2013)
Robert J. Ferguson and Gary F. Margrave
Search and Discovery.com
... [ 2 1 ] . I 2 Elastic parameters , , and slow-direction velocities 0, 0 are unique for geologic media (Thomsen, 1986...
2013
Abstract: 3D, Anisotropic Phase Shift Operators; #90171 (2013)
Robert J. Ferguson and Gary F. Margrave
Search and Discovery.com
... [ 2 1 ] . I 2 Elastic parameters , , and slow-direction velocities 0, 0 are unique for geologic media (Thomsen, 1986...
2013
Abstract: Converted-wave Time Imaging Nuts and Bolts; #90187 (2014)
Shaowu Wang, Thomas Hollis, and Wayne Nowry
Search and Discovery.com
... and Exhibition, SEG, Extended Abstracts. Thomsen, L., 1999, Converted-wave reflection seismology over inhomogeneous, anisotropic media: Geophysics, 64...
2014
Core Data Integration/ Validation of Sonic Derived Anisotropic Mechanical Properties to Expedite Well Decisions in Unconventional Reservoirs
Edgar Velez, Kevin Fisher
Unconventional Resources Technology Conference (URTEC)
... describe the new algorithms used to estimate the elastic constants, Thomsen parameters, and anisotropic mechanical properties from the sonic data...
2023
A stable TTI acoustic wave equation
Linbin Zhang, Edose Ohen
International Meeting for Applied Geoscience and Energy (IMAGE)
...𝜀, (5) kx, ky and kz are the wavenumbers; 𝜀 and 𝛿 are anisotropic parameters defined by Thomsen (1986). 𝜃 is the dip measured to the vertical...
2022
Decoupled approximation of qP- and qSV-wave in attenuated TI media
Rong Huang, Zhiliang Wang, Guojie Song
International Meeting for Applied Geoscience and Energy (IMAGE)
... based on the Kelvin-Voigt model. Theory and method Decoupled approximation of qP- and qSV-waves phase velocity According to the Thomsen anisotropic...
2023
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
... the assumption of weak anisotropy. A method of calculating Thomsen’s weak anisotropy parameters using these AVO gradient terms is then outlined. Compared...
2017
Abstracts: Workflows for Integrated Seismic Interpretation of Rock Properties and Geomechanical Data: Part 2 Application and Interpretation; #90173 (2015)
D. I. Close, M. Perez, B. Goodway, F. Caycedo, D. Monk
Search and Discovery.com
... (gas vs. water), normal and tangential compliances of the fractures and Thomsen‘s anisotropy parameters (Thomsen, 1986, 1988) which relate compressional...
2015
Imaging Solutions for Geophysical Challenges in South East Asia (Paper A13)
N. El Kady, Z. Mohd Dom, Y. Prasetyo, M. Bayly, G. Nyein, P. Vasilyev, N. Mat Don Ya
Geological Society of Malaysia (GSM)
... velocity (Vp) referenced in space and depth , also other subsurface properties such as Thomsen’s anisotropy parameters, dip magnitude and azimuth, faults...
2012
Geomechanical Evaluations of Deep Shale Gas Reservoir in Sichuan Basin, Western China
Xing Liang, Kaibin Qiu, Honglin Shu, Zhuo Zhang, Yufeng Luo, Yuanwei Pan, Qingfei Li, Kaigui Yin, Gaocheng Wang,Yan Gao
Unconventional Resources Technology Conference (URTEC)
... isotropic and vertically anisotropic (TIV), shales require 5 independent stiffness parameters to characterize their anisotropic mechanical properties...
2020
Fracture reservoir prediction method based on AVO disturbance variance
Guangrui Xiao, Yao Li, Yuru Zhang, Dekui Xu
International Meeting for Applied Geoscience and Energy (IMAGE)
...); , , are Thomsen's weak anisotropy parameters. The horizontal lines on the characters represent the average values of the parameters above and below...
2022
Seismic Imaging in Anisotropic Media. or... "A Better Way to Moveout and Migrate Long Offset Data"
Rolf Klotz, Martin Bayly, Sue Downie, Swee Leng
Indonesian Petroleum Association
...Seismic Imaging in Anisotropic Media. or... "A Better Way to Moveout and Migrate Long Offset Data" Rolf Klotz, Martin Bayly, Sue Downie, Swee Leng...
2000
Abstracts: Plane Wave Reflection and Transmission Coefficients for VTI Media; #90173 (2015)
Ritesh Kumar Sharma and Robert James Ferguson
Search and Discovery.com
... of the elastic coefficients and the horizontal and the vertical components of the slowness vector. Since Thomson's parameters for an anisotropic medium...
2015
Application of Advanced Depth Imaging Technology in Shallow Water Offshore Indonesia
Michael Gidding, Suyang Chen, Steven Wiseman, Moch Asrori, Richard Bolton
Indonesian Petroleum Association
... and the lack of other anisotropy information directly available, anisotropic parameters for thesemodels were derived by use of some basic assumptions...
2012
TTI Wave Equation Migration by Phase-Shift Plus Interpolation
Richard A. Bale
Search and Discovery.com
... (1) where VP0 is the velocity parallel to the symmetry axis (vertical for VTI), K Thomsen (1986) parameters H and G, and Vnmo V P 0 1 2G...
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