Understanding Seismic Anisotropy In Exploration And Exploitation Second Edition
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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.
Understanding Seismic Anisotropy In Exploration And Exploitation
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Author : Leon Thomsen
language : en
Publisher: SEG Books
Release Date : 2002
Understanding Seismic Anisotropy In Exploration And Exploitation 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 2002 with Nature categories.
All rock masses are seismically anisotropic, but we generally ignore this in our seismic acquisition, processing, and interpretation. The anisotropy nonetheless does affect our data, in ways that limit the effectiveness with which we can use it, as long as we ignore it. This book, produced for use with the fifth SEG/EAGE Distinguished Instructor Short Course, helps us understand why this inconsistency between reality and practice has been so successful in the past and why it will be less successful in the future as we acquire better seismic data (especially including vector seismic data) and correspondingly higher expectations of it. This book helps us understand how we can modify our practice to more fully realize the potential inherent in our data through algorithms which recognize the fact of seismic anisotropy.
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.
Microseismic Monitoring
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Author : Vladimir Grechka
language : en
Publisher: SEG Books
Release Date : 2017-09-01
Microseismic Monitoring 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 2017-09-01 with Science categories.
Over the past decade, microseismic monitoring, a technology developed for evaluating completions of wells drilled to produce hydrocarbons from unconventional reservoirs, has grown increasingly popular among oil and gas companies. Microseismic Monitoring, by Vladimir Grechka and Werner M. Heigl, discusses how to process microseismic data, what can and cannot be inferred from such data, and to what level of certainty this might be possible. The narrative of the book follows the passage of seismic waves: from a source triggered by hydraulic fracture stimulation, through hydrocarbon-bearing formations, towards motion sensors. The waves’ characteristics encode the location of their source and its focal mechanism. The analysis of various approaches to harvesting the source-related information from microseismic records has singled out the accuracy of the velocity model, fully accounting for the strong elastic anisotropy of hydraulically fractured shales, as the most critical ingredient for obtaining precise source locations and interpretable moment tensors. The ray theory complemented by its modern extensions, paraxial and Fréchet ray tracing, provides the only practical means available today for building such models. The book is written for geophysicists interested in learning and applying advanced microseismic data-processing techniques.
The Interdisciplinary Earth In Honor Of Don L Anderson
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Author : Gillian R. Foulger
language : en
Publisher: Geological Society of America
Release Date : 2015-09
The Interdisciplinary Earth In Honor Of Don L Anderson written by Gillian R. Foulger and has been published by Geological Society of America this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-09 with Science categories.
Copublished with the American Geophysical Union as American Geophysical Union Special Publication 71 This volume is a memorial to Don L. Anderson, former director of the Seismological Laboratory of the Caltech Institute of Technology, recipient of the Crafoord Prize, the National Medal of Honor, and numerous other awards. A geophysicist extraordinaire, he contributed much to our understanding of the structure and dynamics of the interior of Earth. The book, comprised largely of chapters written at Anderson's invitation, reflects his interdisciplinary career. It includes papers on anisotropy, the seismic structure of the mantle, mantle convection, the statistics of melting anomalies, planetary geology, tectonics, the thermal budget of Earth, lithospheric structure, geochemistry, and flood basalts.
Encyclopedic Dictionary Of Applied Geophysics
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Author : Robert E. Sheriff
language : en
Publisher: SEG Books
Release Date : 2002
Encyclopedic Dictionary Of Applied Geophysics written by Robert E. Sheriff and has been published by SEG Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Science categories.
The fourth edition of SEG's best seller is a valuable, comprehensive reference that is a must for every geophysicist, geologist, explorationist, engineer, energy adviser, economist, editor, and student involved in the field. Hundreds of terms have been added since publication of the third edition in 1991, reflecting rapid evolution of the science, especially in the areas of engineering and production problems, 3D (including multicomponent) acquisition and processing, visualization, S- and converted waves, interpretation, anisotropy, AVO, geostatistics, geohazards, neural networks, tomography, downhole measurements, horizontal drilling, and deepwater work. Definitions of hundreds of other terms have been updated. The dictionary's title has been modified slightly to reflect growth in application of geophysical methods, with the word Applied replacing the word Exploration. The dictionary includes a guide to pronunciation and a list of reference figures and tables. A CD containing the dictionary in searchable PDF format also is included.
Understanding Seismic Anisotropy In Exploration And Exploitation
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Author : Leon Thomsen
language : en
Publisher:
Release Date : 2014
Understanding Seismic Anisotropy In Exploration And Exploitation written by Leon Thomsen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
The Relationship Between Damage And Localization
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Author : Helen Lewis
language : en
Publisher: Geological Society of London
Release Date : 2007
The Relationship Between Damage And Localization written by Helen Lewis and has been published by Geological Society of London this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Science categories.
The many kinds of porous geomaterials (rocks, soils, concrete, etc.) exhibit a range of responses when undergoing inelastic deformation. In doing so they commonly develop well-ordered fabric elements, forming fractures, shear bands and compaction bands, so creating the planar fabrics that are regarded as localization. Because these induced localization fabrics alter the bulk material properties (such as permeability, acoustic characteristics and strength), it is important to understand how and why localization occurs, and how it relates to its setting. The concept of damage (in several uses) describes both the precursor to localization and the context within which it occurs. A key theme is that geomaterials display a strong material evolution during deformation, revealing a close linkage between the damage and localization processes. This volume assembles perspectives from a number of disciplines, including soil mechanics, rock mechanics, structural geology, seismic anisotropy and reservoir engineering. The papers range from theoretical to observational, and include contributions showing how the deformed geomaterial's emergent bulk characteristics, like permeability and seismic anisotropy, can be predicted.
Special Papers
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Author :
language : en
Publisher:
Release Date : 1934
Special Papers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1934 with Geology categories.
Expanded Abstracts With Biographies
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Author :
language : en
Publisher:
Release Date : 2004
Expanded Abstracts With Biographies written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Prospecting categories.