Seismology Of Azimuthally Anisotropic Media And Seismic Fracture Characterization

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Seismology Of Azimuthally Anisotropic Media And Seismic Fracture Characterization
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Author : I. D. T︠S︡vankin
language : en
Publisher: SEG Books
Release Date : 2011
Seismology Of Azimuthally Anisotropic Media And Seismic Fracture Characterization written by I. D. T︠S︡vankin and has been published by SEG Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Nature categories.
Presents an analysis of seismic signatures for azimuthally anisotropic media and shows anisotropic inversion/processing methods for wide-azimuth reflection data and VSP surveys. The focus is kinematic parameter-estimation techniques; the prestack amplitudes section includes AVO and attenuation coefficients; field examples are included.
Seismology Of Azimuthally Anisotropic Media And Seismic Fracture Characterization
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Author : Ilya D. Tsvankin
language : en
Publisher:
Release Date : 2011
Seismology Of Azimuthally Anisotropic Media And Seismic Fracture Characterization written by Ilya D. Tsvankin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Anisotropy categories.
Seismology Of Azimuthally Anisotropic Media And Seismic Fracture Characterization
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Author : Ilya Tsvankin
language : en
Publisher:
Release Date : 2011
Seismology Of Azimuthally Anisotropic Media And Seismic Fracture Characterization written by Ilya Tsvankin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
Seismology Of Azimuthally Anisotropic Media And Seismic Fracture Characterization
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Author : I. D. Tsvankin
language : en
Publisher:
Release Date : 2011
Seismology Of Azimuthally Anisotropic Media And Seismic Fracture Characterization written by I. D. Tsvankin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with anizotrópia categories.
Understanding Seismic Anisotropy In Exploration And Exploitation Second Edition
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Author : Leon Thomsen
language : en
Publisher: SEG Books
Release Date : 2014-10-01
Understanding Seismic Anisotropy In Exploration And Exploitation Second Edition written by Leon Thomsen and has been published by SEG Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-01 with Science categories.
Understanding Seismic Anisotropy in Exploration and Exploitation (second edition) by Leon Thomsen is designed to show you how to recognize the effects of anisotropy in your data and to provide you with the intuitive concepts that you will need to analyze it. Since its original publication in 2002, seismic anisotropy has become a mainstream topic in exploration geophysics. With the emergence of the shale resource play, the issues of seismic anisotropy have become central, because all shales are seismically anisotropic, whether fractured or not. With the advent of wide-azimuth surveying, it has become apparent that most rocks are azimuthally anisotropic, with P-wave velocities and P-AVO gradients varying with source-receiver azimuth. What this means is that analysis of such data with narrow-azimuth algorithms and concepts will necessarily fail to get the most out of this expensively acquired data. The issues include not only seismic wave propagation, but also seismic rock physics. Isotropic concepts including velocity, Young’s modulus, and Poisson’s ratio have no place in the discussion of anisotropic rocks, unless qualified in some directional way (e.g., vertical Young’s modulus). Likewise, fluid substitution in anisotropic rocks, using the isotropic Biot/Gassmann formula, leads to formal errors, because the bulk modulus does not appear, in a natural way, within the anisotropic P-wave velocity. This updated edition is now current as of 2014.
Seismic Fracture Characterization
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Author : Enru Liu
language : en
Publisher: Academic Press
Release Date : 2013-12-06
Seismic Fracture Characterization written by Enru Liu and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-06 with Science categories.
During the last three decades, seismic anisotropy has evolved from a purely academic research topic into applications in the mainstream of applied geophysics. Today, nobody doubts that the earth is anisotropic and most (if not all) hydrocarbon reservoirs are anisotropic. Since shale accounts for 70% of sedimentary basins and fractures exist in all reservoirs, seismic anisotropy may be even more extensive than we think. Taking anisotropy into account in seismic processing has improved the quality of seismic images, even though it makes seismic processing more challenging since additional parameters are needed. At the same time, fracture characterization using the concept of seismic anisotropy has added value in reservoir characterization, reservoir management, and has increased recovery and optimized well locations. This book and the associated course provide an introduction to the fundamental concepts of seismic fracture characterization by introducing seismic anisotropy, equivalent-medium representation theories of fractured rock and methodologies for extracting fracture parameters from seismic data. We focus on practical applications using extensive field data examples. - Includes cast studies demonstrating the applicability, workflow and limitations of this technology - Contains physical laboratory 3D experiments where fracture distributions are known, a Middle East fractured carbonate reservoir and a fractured tight gas reservoir. - Builds discrete fracture network models incorporating all data. These models should not only be geologically consistent but also geophysically and geomechanically consistent, so that the models can be used to forecast the behaviour and performance of fractured reservoirs.
3c Seismic And Vsp Converted Waves And Vector Wavefield Applications
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Author : James Gaiser
language : en
Publisher: SEG Books
Release Date : 2016-06-30
3c Seismic And Vsp Converted Waves And Vector Wavefield Applications written by James Gaiser and has been published by SEG Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-30 with Science categories.
3C seismic applications provide enhanced rock property characterization of the reservoir that can complement P-wave methods. Continued interest in converted P- to S-waves (PS-waves) and vertical seismic profiles (VSPs) has resulted in the steady development of advanced vector wavefield techniques. PS-wave images along with VSP data can be used to help P-wave interpretation of structure in gas obscured zones, of elastic and fluid properties for lithology discrimination from S-wave impedance and density inversion in unconventional reservoirs, and of fracture characterization and stress monitoring from S-wave birefringence (splitting) analysis. The book, which accompanies the 2016 SEG Distinguished Instructor Short Course, presents an overview of 3C seismic theory and practical application: from fundamentals of PS-waves and VSPs, through to acquisition and processing including interpretation techniques. The emphasis is on unique aspects of vector wavefields, anisotropy, and the important relationships that unify S-waves and P-waves. Various applications and case studies demonstrate image benefits from PS-waves, elastic properties and fluid discrimination from joint inversion of amplitude variations with offset/angle (AVO/A), and VSP methods for anisotropic velocity model building and improved reservoir imaging. The book will be of interest to geophysicists, geologists, and engineers, especially those involved with or considering the use of AVO/A inversion, fracture/stress characterization analyses, or interpretation in gas-obscured reservoirs.
Seismic Signatures And Analysis Of Reflection Data In Anisotropic Media
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Author : Ilya Tsvankin
language : en
Publisher: SEG Books
Release Date : 2012
Seismic Signatures And Analysis Of Reflection Data In Anisotropic Media written by Ilya Tsvankin and has been published by SEG Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Nature categories.
Provides essential background on anisotropic wave propagation, introduces efficient notation for transversely isotropic (TI) and orthorhombic media, and identifies the key anisotropy parameters for imaging and amplitude analysis. Particular attention is given to moveout analysis and P-wave time-domain processing for VTI and TTI.
Anisotropy And Microseismics Theory And Practice
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Author : Vladimir Grechka
language : en
Publisher: SEG Books
Release Date : 2020-08-01
Anisotropy And Microseismics Theory And Practice written by Vladimir Grechka and has been published by SEG Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-08-01 with Science categories.
Downhole microseismic monitoring of stimulation and production of unconventional reservoirs has resulted in renewed industry interest in seismic anisotropy. This occurred not only because anisotropy of hydrocarbon-bearing shales is among the strongest in rocks but also because downhole microseismics shifts the focus from the standard exploration of P-waves to shear waves. The consequences of the difference in wave type are profound for geophysicists because everyone involved - from theoreticians to developers and users of microseismic data-processing software - must be aware of shear-wave splitting, singularities, and multivalued wavefronts, which have been largely irrelevant for P-waves propagating in relatively simple geologic settings. Anisotropy and Microseismics leads readers on a path of discovery of rarely examined wave phenomena and their possible usage. Most of the chapters begin by formulating a question, followed by explanations of what is exciting about it, where the mystery might lie, and what could be the potential value of answering the question. Importantly, the findings entail useful applications, as showcased by the unmistakably practical flavor of the chapters on microseismic event location, moment tensor inversion, and imaging. As an investigation of microseismic methodologies and techniques is conducted, it often yields unexpected results.
Reservoir Characterization Modeling And Quantitative Interpretation
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Author : Shib Sankar Ganguli
language : en
Publisher: Elsevier
Release Date : 2023-10-27
Reservoir Characterization Modeling And Quantitative Interpretation written by Shib Sankar Ganguli and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-10-27 with Science categories.
Reservoir Characterization, Modeling and Quantitative Interpretation: Recent Workflows to Emerging Technologies offers a wide spectrum of reservoir characterization techniques and technologies, focusing on the latest breakthroughs and most efficient methodologies in hydrocarbon exploration and development. Topics covered include 4D seismic technologies, AVAz inversion, fracture characterization, multiscale imaging technologies, static and dynamic reservoir characterization, among others. The content is delivered through an inductive approach, which will help readers gain comprehensive insights on advanced practices and be able to relate them to other subareas of reservoir characterization, including CO2 storage and data-driven modeling. This will be especially useful for field scientists in collecting and analyzing field data, prospect evaluation, developing reservoir models, and adopting new technologies to mitigate exploration risk. They will be able to solve the practical and challenging problems faced in the field of reservoir characterization, as it will offer systematic industrial workflows covering every aspect of this branch of Earth Science, including subsurface geoscientific perspectives of carbon geosequestration. This resource is a 21st Century guide for exploration geologists, geoscience students at postgraduate level and above, and petrophysicists working in the oil and gas industry. - Covers the latest and most effective technologies in reservoir characterization, including Avo analysis, AVAz inversion, wave field separation and Machine Learning techniques - Provides a balanced blend of both theoretical and practical approaches for solving challenges in reservoir characterization - Includes detailed industry-standard practical workflows, along with code structures for algorithms and practice exercises