Multi Component Vsp Analysis For Applied Seismic Anisotropy
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Multi Component Vsp Analysis For Applied Seismic Anisotropy
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Author : Colin MacBeth
language : en
Publisher: Elsevier
Release Date : 2002
Multi Component Vsp Analysis For Applied Seismic Anisotropy written by Colin MacBeth and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Juvenile Nonfiction categories.
The vertical seismic profile, acquired with an array of 3C receivers and either a single source or several arranged in a multi-component configuration, provides an ideal high fidelity calibration tool for seismic projects involved in the application of seismic anisotropy. This book catalogues the majority of specialized tools necessary to work with P-P, P-S and S-S data from such VSP surveys at the acquisition design, processing and interpretation stages. In particular, it discusses 3C, 4C, 6C and 9C VSP, marine and land surveys with near and multiple offsets (walkways), azimuths (walkarounds) or a combination of both. These are considered for TIH or TIV flavours of seismic anisotropy arising from cracks, fractures, sedimentary layering, and shales. The anisotropic adaptation of familiar seismic methods for velocity analysis and inversion, reflected amplitude interpretation, are given together with more multi-component specific algorithms based upon the principles dictated by the vector convolutional model. Thus, multi-component methods are described that provide tests and compensation for source or receiver vector fidelity, tool rotation correction, layer stripping, near-surface correction, wavefield separation, and the Alford rotation with its variants. The work will be of interest to geophysicists involved in research or the application of seismic anisotropy using multi-component seismic.
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.
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.
Seismic Signatures And Analysis Of Reflection Data In Anisotropic Media
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Author : I. Tsvankin
language : en
Publisher: Elsevier
Release Date : 2001-03-02
Seismic Signatures And Analysis Of Reflection Data In Anisotropic Media written by I. Tsvankin and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-03-02 with Science categories.
Following the breakthrough in the last decade in identifying the key parameters for time and depth imaging in anisotropic media and developing practical methodologies for estimating them from seismic data, this title primarily focuses on the far reaching exploration benefits of anisotropic processing.This volume provides the first comprehensive description of reflection seismic signatures and processing methods in anisotropic media. It identifies the key parameters for time and depth imaging in transversely isotropic media and describes practical methodologies for estimating them from seismic data. Also, it contains a thorough discussion of the important issues of uniqueness and stability of seismic velocity analysis in the presence of anisotropy. The book contains a complete description of anisotropic imaging methods, from the theoretical background to algorithms to implementation issues. Numerous applications to synthetic and field data illustrate the improvements achieved by the anisotropic processing and the possibility of using the estimated anisotropic parameters in lithology discrimination.
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.
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.
Seismic While Drilling
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Author : F.B Poletto
language : en
Publisher: Elsevier
Release Date : 2022-08-13
Seismic While Drilling written by F.B Poletto and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-13 with Science categories.
Seismic While Drilling: Fundamentals of Drill-Bit Seismic for Exploration, 2nd edition, revised and extended gives a theoretical and practical introduction to seismic while drilling by using drill-bit noise. While drilling seismic methods using surface sources and downhole receivers are also analysed. The goal is to support the exploration geology with geophysical control of drilling, and to build a bridge between geophysicists involved in seismic while drilling, drillers and exploration geologists. This revised and extended edition includes new topics such as novel drilling technology, downhole communication, ground-force drill-bit measurement, SWD seismic interferometry, and fiber optic (DAS). A new section is dedicated to well placement and geosteering. Like the first edition, Seismic While Drilling, 2nd edition also includes examples of SWD analysis and application on real data. - Addresses fundamental knowledge on geophysical principles related to acoustics and seismic waves as well as basic borehole waves and drilling - Includes new technological and methodological developments since the publication of the first edition - Provides new examples for applications in geothermal and analysis of diffractions, offshore marine, and tunnel seismic while drilling (TSWD)
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.
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.
Seismic Amplitude
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Author : Rob Simm
language : en
Publisher: Cambridge University Press
Release Date : 2014-04-17
Seismic Amplitude written by Rob Simm and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-04-17 with Nature categories.
This book introduces practical seismic analysis techniques and evaluation of interpretation confidence, for graduate students and industry professionals - independent of commercial software products.