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The AAPG/Datapages Combined Publications Database
Showing 6,613 Results. Searched 188,958 documents.
EXTENDED ABSTRACT: Advances and Challenges in Seismic Data Processing and Imaging for Geologically Complex Areas
Rubén D. Martínez
GCAGS Transactions
... to provide not only accurate velocity models for migration but also be able to account for velocity anisotropy, in this case, TTI (tilted transverse isotropy...
2011
Recent Developments in Marine Acquisition and Data Processing Technology to Improve Imaging through Complex Overburdens
Timothy Bunting, Jerry Kapoor, Nick Moldoveanu, Jeremy Browett
GCAGS Transactions
... transverse isotropy is providing value in correctly positioning the seismic events in depth and improving the focusing of seismic events. New model...
2011
Application of TTI Reverse Time Migration, Deepwater Offshore Malaysia (Paper P5)
J. Sun, B. Mishra, C. Jiao, J. Sun, G. Hodgkiss, A. Bisset
Geological Society of Malaysia (GSM)
... model building. A TTI (Tilted Transverse Isotropy) anisotropic velocity model was built using six iterations of 3D tomography incorporating well logs...
2012
Application of VTI PSDM for imaging carbonate structures
Seyed Yaser Moussavi Alashloo, Deva Ghosh, Yasir Bashir, Amir Babasafari
Geological Society of Malaysia (GSM)
... transverse isotropy (VTI) wave equation. A fast marching finite difference approach is used as our eikonal solver since it is fast and stable...
2018
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
... techniques rely on amplitude and velocity variation with offset and azimuth, respectively. Horizontal transverse isotropy (HTI) is assumed when...
2015
Abstract: Experimental Anisotropy Results in Alberta Shales; #90211 (2015)
Darrel Hemsing and Douglas Schmitt
Search and Discovery.com
... into a PVC jacket (Figure 2b). Under the assumption of transverse isotropy for shales (e.g. Johnston and Christensen, 1995) the five necessary directions...
2015
Abstract: Abstract: Mineral and Organic Diagenetic Modifications in the Post Mature Marcellus Shale; #90283 (2016)
Claudio Delle Piane, Julien Bourdet, Vladimir Luzin, David N. Dewhurst, Mark Raven
Search and Discovery.com
... transverse isotropy. The preferred orientation of two strongly anisotropic minerals like illite and calcite is certainly contributing to the anisotropic...
2016
Analysis of Time-lapse Multicomponent Seismic Data from a Potash Mining Area in Saskatchewan, Canada, #41275 (2014)
Andrew Nicol, Don Lawson
Search and Discovery.com
... seismic anisotropy to manifest itself in the form of horizontal transverse isotropy (HTI). HTI is seen where vertical fractures are present...
2014
Anisotropic Depth Migration Applied in an Area of the Colombian Llanos Foothills as a Tool for Understanding the Structure in Depth
Isabel Cristina Florez, Rob Vestrum
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... where transverse isotropy with a tilted axis of symmetry is present. The dashed lines represent the result of isotropic processing. S is the distance...
2006
Integration of Core Data with Well Logs for Geomechanical Property Determination and Monitoring in the Argentinean Vaca Muerta Shale Formation
Maxwell Willis, Azra N. Tutuncu
Unconventional Resources Technology Conference (URTEC)
... based on the vertical transverse isotropy (VTI) using the core data as an input for the model. The model was then utilized with the logging data...
2014
AVO Seismic Technology - Workshop Summary
Brian Russell
PTTC
.... Fine horizontal layering, as in shales, can cause vertical transverse isotropy in which velocity dependence is transverse to the vertical axis...
2003
Fracture Detection by Azimuthal Differential Residual Moveout
Juefu Wang
Search and Discovery.com
...: Geophysics, 63, 935-947. Tsvankin, I., 1997, Reflection moveout and parameter estimation for horizontal transverse isotropy: Geophysics, 62, 614-629...
Unknown
Fracture Detection by Azimuthal Differential Residual Moveout
Juefu Wang
Search and Discovery.com
...: Geophysics, 63, 935-947. Tsvankin, I., 1997, Reflection moveout and parameter estimation for horizontal transverse isotropy: Geophysics, 62, 614-629...
Unknown
Abstract: Converted-wave Time Imaging Nuts and Bolts; #90187 (2014)
Shaowu Wang, Thomas Hollis, and Wayne Nowry
Search and Discovery.com
... processing. Ver West and Wilkinson (2003) separated the vertical transverse isotropy (VTI) anisotropy into effective VTI anisotropy as the result of ray...
2014
Abstract: Practical Applications of Seismic Anisotropy; #90187 (2014)
Philip Wild
Search and Discovery.com
... and gaining use from the phenomenon (Figure 1). The simplest two of these anisotropies, vertical transverse isotropy (VTI) for characterizing horizontal...
2014
Development of a Pore Pressure Workflow and Multi-Variate Depletion Flag for Horizontal Child Wells in the Eagle Ford Formation
Rachel Grande, Taylor Levon, Bruce Warren
Unconventional Resources Technology Conference (URTEC)
... isotropic Young’s Modulus and Poisson’s Ratio as well as anisotropic properties in the form of horizontal transverse isotropy (HTI) and vertical...
2020
Abstract: Numerical Modeling for Different Types of Fractures; #90187 (2014)
Xiaoqin Cui, Laurence R. Lines, and Edward S. Krebes
Search and Discovery.com
... presents the relationship of stress and strain for the transverse isotropy medium with vertical symmetrical axis (VTI). The square with dashed lines...
2014
Abstracts: Determining Elastic Constants of an Orthorhombic Material by Physical Seismic Modeling; #90173 (2015)
Faranak Mahmoudian, Gary F. Margrave, P. F. Daley, and Joe Wong
Search and Discovery.com
... directions. Vertical fractures in horizontal fine layering forms an equivalent orthorhombic medium (Schoenberg and Helbig, 1997); also, the transverse...
2015
Velocity Model Building Using Tilted Orthorhombic Depth Imaging for Full Azimuth Seismic Data
Yunfeng (Fred) Li, Qiaofeng Wu, Chuen-Song Chen
GCAGS Journal
... stress field (Dewey et al., 2006; Schoenbergm and Helbig, 1997; Bakulin et al., 2000). This stratification typically implies transverse isotropy (TI...
2013
Unconventional Play Fracture Characterization Through Orthorhombic Depth Model Building
Guy Hilburn, Amit Pendharkar, William Keller, René Mott, Jorge Peinado, Austin Jumper, Victor Kriechbaum
Unconventional Resources Technology Conference (URTEC)
... processed) imaging results. This often takes the form of a horizontal transverse isotropy (HTI) correction, which defines horizontal fast and slow propagation...
2018
The Effects of Lamination/Bedding on the Brittleness for the Woodford Shale Silica-Rich Intervals, From the Wyche-1 Core-Well Analysis, Pontotoc County, Oklahoma; #51394 (2017)
Carlos E. Molinares, Roger M. Slatt, Rafael Sierra
Search and Discovery.com
.... However, anisotropy (lamination/bedding) is not commonly included when defining “fracability”. 5. VERTICAL TRANSVERSE ISOTROPY (VTI) 4. PROBLEMS...
2017
Seismic Velocity Anisotropy in Chimore Area, Bolivia
Michael Fry, Eloy Martinez, James Baker, Mark Wallace
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... for seismic imaging. Horizontal transverse isotropy (or HTI) is one type of anisotropy that can have a profound effect on the seismic data (Lynn 2004...
2008
UK Continental Shelf: Raising the Bar for Regional 3D Seismic in the Central North Sea
Gregor Duval, Steve Hollingworth, Luke Twigger, CGG
GEO ExPro Magazine
... calibrated to ten horizons and 225 wells in total. Anisotropy was accounted for through tilted transverse isotropy in the velocity model with the main axis...
2015
Anisotropic Multi-Azimuthal Velocity Model Building and Depth Imaging on Tulip 3D Coil Shooting Survey
Michele Buia, Suyang Chen, Olga Zdraveva, Swee Leng Ng, Martin Bayly, Michelle Tham
Indonesian Petroleum Association
... loops were performed, two isotropic and three anisotropic (Tilted Transverse Isotropy-TTI), to produce a detailed velocity model. The initial...
2011
Salt Delineation Using Vector Offset Output (VOO) of Full Azimuth Data
Yogesh Agnihotri, Qiaofeng Wu, Dekang Xu
GCAGS Transactions
... approximations, such as tilted transverse isotropy (TTI) and orthorhombic reverse time migration (RTM), to position accurately the recorded data. Additionally...
2015