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Showing 6,913 Results. Searched 195,354 documents.
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
Abstracts: True-Amplitude PS Prestack Time Migration via 5D Interpolation; #90173 (2015)
Peter W. Cary, Albert Zhang
Search and Discovery.com
... are typically more influenced by anisotropy in a medium than P-waves. Treatment of both horizontal transverse isotropy (HTI) and vertical transverse...
2015
Abstract: Mid-Tertiary Pre-Rotation Orientation of the Western/Eastern Transverse Ranges of California, by A. E. Fritsche, L. G. Field, F. E. Denison, M. S. Stecheson, J. F. Holt, M. O. Kruger, and L. De Paula; #90920 (1999).
Search and Discovery.com
1999
Investigation into the Fabric and Textural Controls over Effective Grain Stiffness for Accurate Biot Coefficient and Pore Compressibility Prediction
Laurent Louis, Gregory Boitnott, Erek Hutto, Gustavo Carpio, Michael Foster
Unconventional Resources Technology Conference (URTEC)
... and internal forces commonly assume isotropy and a simple stress sensitivity framework where the poroelastic behavior is uniquely controlled by the difference...
2021
Abstract: AVAZ Inversion for Fracture Orientation and Intensity: a Physical Modeling Study; #90187 (2014)
Faranak Mahmoudian and Gary F. Margrave
Search and Discovery.com
...). The effect of natural fractures, when seismic waves propagating through them, can be well described by a medium with transverse isotropy (TI). Particularly...
2014