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The AAPG/Datapages Combined Publications Database
Showing 7,126 Results. Searched 200,293 documents.
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
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
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
All that wobbles isnt necessarily azimuthal anisotropy
Helen Debenham, Jennifer Badry, Mohamed Megebry
Petroleum Exploration Society of Australia (PESA)
... of azimuth and is often referred to as horizontal transverse isotropy (HTI). Similarly, the more familiar vertical (or tilted) transverse isotropy...
2019
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
Depth Imaging Coil Data: Multi Azimuthal Tomographic Earth Model Building and Imaging of Tulip (Paper A15)
S. Chen, M. Buia, L. Livraghi, M. Bakhrudin, M. Tham, M. Bayly, S. Ng, O. Zdraveva
Geological Society of Malaysia (GSM)
... generalized Tilted Transverse Isotropy (TTI) modeling approach (Zdraveva, Cogan 2011). The following three tomography iterations converged...
2012
Abstract: An Overview of Seismic Fracture Prediction, by Enru Liu, Rishi Bansal, Xin Zhan, Alex Martinez, and Chris Harris; #120034 (2012)
Search and Discovery.com
2012
TTI Wave Equation Migration by Phase-Shift Plus Interpolation
Richard A. Bale
Search and Discovery.com
... by tilted transverse isotropy (TTI) (Isaac and Lawton, 2004). Several authors (e.g. Vestrum et al., 1999) have shown the importance of accounting...
Unknown
TTI Wave Equation Migration by Phase-Shift Plus Interpolation
Richard A. Bale
Search and Discovery.com
... by tilted transverse isotropy (TTI) (Isaac and Lawton, 2004). Several authors (e.g. Vestrum et al., 1999) have shown the importance of accounting...
Unknown
TTI Wave-equation Migration of A 3-D Canadian Foothills Dataset
Search and Discovery.com
... sedimentary layers which give rise to tilted transverse isotropy (TTI). While isotropic and VTI algorithms for WEM have been in widespread use for some time...
2013
Abstract: Near-surface Issues in TTI Wave Equation Migration from Topography; #90171 (2013)
Chuck Ursenbach, Richard A. Bale, and Samuel H. Gray
Search and Discovery.com
... to tilted transverse isotropy (TTI). The 3D coverage is necessary to image intricate subsurface structure, while TTI is necessary to obtain accurate...
2013
Abstract: Application of Target-oriented VVAZ on Relatively thin Fracture Reservoir; #90174 (2014)
Stephen K. Chiu, Jack Howell, Jason A Stein, Samik Sil, and Jeff Malloy
Search and Discovery.com
... velocity changes to fractures in rocks. The simplest anisotropic model to describe azimuthal variation of velocity, azimuthal anisotropy, is transverse...
2014
Abstract: TTI Anisotropic Depth Migration: Which Tilt Estimate Should We Use?; #90211 (2015)
Francois Audebert and Volker Dirks
Search and Discovery.com
... media. Slightly more complex anisotropic media are now gradually being used; they are commonly referred to as TTI. TTI stands for Tilted Transverse...
2015
The Importance of Stress and Fractures in Hydrofracturing and Stimulation Performance: A Geomechanics Overview; #80255 (2012)
Daniel Moos
Search and Discovery.com
... wells can break down due to stress, by opening transverse weak planes, or at nucleation points, e.g., packers. Selected References Franquet, J.A....
2012
Integration of Geologic Data into Structural Imaging of the Andean Subthrust, Peru; #41605 (2015)
Margaret A. Stratton, Robert Vestrum, Dennis Ellison
Search and Discovery.com
... of dipping clastics above the exploration target, tilted transverse isotropy (TTI) can cause lateral-position errors on the seismic reflectors and velocities...
2015
Abstract: Cross-Validation of 3C and 9C Prestack Shear Wave Splitting Analysis at Big Sky; #90224 (2015)
Jeff P. Grossman and Gulia Popov
Search and Discovery.com
..., 1987). This is an example of HTI anisotropy, where HTI stands for ‘transverse isotropy with a horizontal symmetry axis’. ‘Transverse isotropy’ means...
2015
Workflow for Nonlinear AVO Inversion to Estimate Seismic Anisotropy and Geomechanical Properties of Shale
Un Young Lim, Richard L. Gibson Jr., Nurul Kabir
Unconventional Resources Technology Conference (URTEC)
... is not limited by assumptions of weak contrasts and seismic isotropy. This allows better estimations of elastic and geomechanical properties...
2019
Integrated Workflow for Fracture Characterization ; From Well Bore Analysis, Post-Stack Geometrical Attributes and Pre-Stack Azimuthal Inversion; Case Study for Fractured Volcanic Reservoir Analysis in Jatibarang Field, North West Java Basin
Aji Rahmat Ginanjar, Andreas Wasi Kuncoro, Muhammad Taslim, Tri Sunarno Irianto, Arrie Kurniawan, Oddy Pranidhana
Indonesian Petroleum Association
... in an anisotropic medium but only three of these are within the wavelengths of seismic data. These three types are : 1. Transverse isotropy (Hexagonal...
2017
Impact of Natural Fracture Induced Elastic Anisotropy on Completion and Fracturing Design in Different Shale Reservoirs
Emre Can Dundar, Aymen Alhemdi, Ming Gu
Unconventional Resources Technology Conference (URTEC)
... horizontal (perpendicular to the gravitational direction), such anisotropy feature of laminated shale is known as transverse isotropy that has a vertical axis...
2019