Welcome to the new Datapages Archives
Datapages has redesigned the Archives with new features. You can search from the home page or browse content from over 40 publishers and societies. Non-subscribers may now view abstracts on all items before purchasing full text. Please continue to send us your feedback at emailaddress.
AAPG Members: Your membership includes full access to the online archive of the AAPG Bulletin. Please login at Members Only. Access to full text from other collections requires a subscription or pay-per-view document purchase.
Welcome to the new Datapages Archives
Search Results > New Search > Revise Search
The AAPG/Datapages Combined Publications Database
Showing 473 Results. Searched 195,364 documents.
Anisotropy Analysis in Shale Using Advanced Sonic Data - Bakken Case Study, #41049 (2012)
Mehdi Ostadhassan, Zhengwen Zeng, Hadi Jabbari
Search and Discovery.com
.... Considering shales as being vertically transverse isotropic (VTI), three Thomsen anisotropy parameters with five independent stiffness coefficients...
2012
Seismic Imaging and Interpretive Model Building in the Colombian Andes
Rob Vestrum
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
...-traveltime raypaths for offsets ranging from zero to 2000 metres through a 1000-metre-thick TTI medium dipping 15°. The anisotropic parameters used...
2006
P- and PS-Wave Vector Wavefields for Anisotropic Petrophysics
James Gaiser
Petroleum Exploration Society of Australia (PESA)
.... Thomsen, L., 2013, On the use of isotropic parameters λ, E, ν, K to understand anisotropic shale behavior: 83rd Ann. Internat. Mtg., SEG, Exp. Abs...
2016
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
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
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...
Unknown
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...
Unknown
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
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
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
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, 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: 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
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
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
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
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
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: 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
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: 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
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
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
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