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The AAPG/Datapages Combined Publications Database

Showing 6,913 Results. Searched 195,354 documents.

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All that wobbles isnt 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

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

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

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