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The AAPG/Datapages Combined Publications Database
Showing 527 Results. Searched 200,357 documents.
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
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
Abstract: Calculation of Amplitude and Velocity in General Anisotropic Media; #90224 (2015)
M. Malehmir and D. R. Schmitt
Search and Discovery.com
.... Musgrave (1970) and Auld(1973) solved for slowness and polarization for given ray path of plane wave propagating in general anisotropic media. Thomsen...
2015
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
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
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
Abstract: Analytic Formulae for Wave Normal of P-Waves in TI and Orthorhombic Media; #90255 (2017)
Qi Hao, Alexey Stovas
Search and Discovery.com
... with respect to Thomsen-type parameters. For TI media, the proposed formulae for the wave normal in terms of anellipticity parameters are more accurate...
2017
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
Abstract: AVAZ Inversion for Anisotropy Parameters of a Fractured Medium; #90174 (2014)
Faranak Mahmoudian, Gary F. Margrave, and Joe Wong
Search and Discovery.com
... and the direction normal to it is referred as the symmetry axis of the system. Three Thomsen-style anisotropy parameters (ε, δ, γ) in addition...
2014
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
Abstract: Azimuthal Fourier Coefficient Elastic Inversion; #90174 (2014)
Benjamin Roure and Jon Downton
Search and Discovery.com
... attributes such as the anisotropic gradient and the fracture parameters of the azimuthal elastic inversion. First the azimuthal elastic inversion...
2014
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
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
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
The Application of PSDM VTI Method to Generate a Velocity Model That Can Solve the Mistacking Problem
Aulia Ahmad Nafis, Hasan Nurudin, Ikhsan Hanurogo, Bagus Sapto M, Ahmad Zaenudin
Indonesian Petroleum Association
...) as anisotropic parameter). δ (delta) is the thomsen parameter that influences the velocity in the vertical direction and it is most influential vertically...
2018
Abstract: Sensitivity Analysis and Data Resolution: Important Aspects of Quantitative Basin Analysis, by R. O. Thomsen, A-M. Jepsen, and F. Maubeuge; #90990 (1993).
Search and Discovery.com
1993
Estimating Seismic Anisotropy Parameters from Rock Properties in Wolfcamp Shales, Midland Basin
Jaewook Lee, David Lumley
Unconventional Resources Technology Conference (URTEC)
... stiffness coefficient values (Figure 8). As a result, we can successfully estimate the anisotropic parameters (elastic stiffness coefficients and Thomsen...
2022
A stochastic modeling method of seismic velocity and anisotropy parameters in VTI medium using travel time detectability criterion
Andrey H. Shabelansky, Huafeng Liu, Cory J. Hoelting, Min Yang, Jinsong Chen
International Meeting for Applied Geoscience and Energy (IMAGE)
..., t) + ∆δj (x, y, t) ∙ ςj (1b) Stochastic modeling of the anisotropic velocity (i.e., vertical velocity V, anellipticity parameter η and Thomsen δ...
2022
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
Abstract: Sensitivity Analysis and Data Resolution: Important Aspects of Quantitative Basin Analysis, by R. O. Thomsen, A-M. Jepsen, and F. Maubeuge; #90987 (1993).
Search and Discovery.com
1993
Studying the feasibility of phase slowness inversion of seismic anisotropic parameters using VSP DAS data
Yu Chen, Takashi Mizuno, Manish Lal Kaitan, Xinyuan Li
International Meeting for Applied Geoscience and Energy (IMAGE)
...Studying the feasibility of phase slowness inversion of seismic anisotropic parameters using VSP DAS data Yu Chen, Takashi Mizuno, Manish Lal Kaitan...
2024
ABSTRACT: Incorporation of Geology, Wells, Rockphysics into Anisotropy Estimation for Seismic Depth Imaging Enables “True Earth Model”
Search and Discovery.com
N/A
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
Abstract: SS-wave Reflections from P-wave Sources in Azimuthally Anisotropic Media; #90187 (2014)
James Gaiser and Richard Verm
Search and Discovery.com
... verse components and ly, and density is gr/cm . The , and are Thomsen (1986) parameters. analyze azimuth stacks to Layer Depth VP0 VS0 find...
2014
Uncertainty quantification of anisotropic elastic constants and mud speed using borehole sonic data
Ting Lei, Kristoffer Walker, Adam Donald, Alexei Bolshakov, Lin Liang, Romain Prioul, Edgar Ignacio Velez Arteaga
International Meeting for Applied Geoscience and Energy (IMAGE)
...) parameters. However, the inversion process is ill-conditioned, leading to trade-off between Thomsen parameters (𝛾, 𝜀, 𝛿) and input uncertainties...
2023