Seismic Diffraction Imaging Methods And Applications
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Seismic Diffraction Imaging Methods And Applications
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Author : Luke Adam Decker
language : en
Publisher:
Release Date : 2014
Seismic Diffraction Imaging Methods And Applications written by Luke Adam Decker 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.
Seismic waves can either be reflected or diffracted by subsurface objects depending on the object's geometry. Diffactions can be used to determine details about the small-scale features that generate them, such as karsts, voids, pinchouts, faults, fractures, and salt flanks. Diffraction imaging can have resolution below the typical seismic wavelength. Scattered waves are recorded as significantly lower-energy signal than reflected waves, requiring that diffractions be separated from reflections. I describe three methods of such separation: data-domain plane-wave destruction, Fresnel zone Elimination, and partial-image plane-wave destruction. Once separated, diffractions can be migrated to create a seismic diffraction image and used in velocity analysis. Common-reflection angle migrated diffractions appear flat in dip angle gathers when migrated with correct velocity. I illustrate how this property can be used to determine migration velocity through a process of oriented velocity continuation (OVC). In OVC framework diffraction data are decomposed by slope and migrated over a range of velocities. Velocities corresponding to the flattest slope gathers are picked using semblance as a measure of flatness. This provides an estimate of migration velocity. Stacking gathers corresponding to this chosen velocity generates a seismic diffraction image. Seismic diffraction images provide interpreters with information about small-scale geologic objects that may not be available in conventional images. Scattering features that are interesting for exploration, like voids, caves, fractures, and faults, cause diffractions and can be resolved with better focus in diffraction images than in conventional ones. This is particularly useful with geologically complex carbonate systems. Carbonates are strongly heterogeneous, making them difficult to image with conventional methods. Reservoir porosity is often contained within caves, or small vugs. These features are difficult to characterize with conventional methods because cave reflections have large geometric uncertainties in cave size and location. Velocity analysis of seismic reflection data in carbonates may not highlight vugular porosity particularity well. I illustrate how diffraction images provide improved characterization by highlighting the edges of caves, thus constraining cave geometry, and highlighting more heterogenous zones by measuring the amount of scattering those zones generate.
Seismic Imaging Methods And Applications For Oil And Gas Exploration
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Author : Yasir Bashir
language : en
Publisher: Elsevier
Release Date : 2022-03-16
Seismic Imaging Methods And Applications For Oil And Gas Exploration written by Yasir Bashir and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-03-16 with Science categories.
Seismic Imaging Methods and Application for Oil and Gas Exploration connects the legacy of field data processing and imaging with new research methods using diffractions and anisotropy in the field of geophysics. Topics covered include seismic data acquisition, seismic data processing, seismic wave modeling, high-resolution imaging, and anisotropic modeling and imaging. This book is a necessary resource for geophysicist working in the oil and gas and mineral exploration industries, as well as for students and academics in exploration geophysics. - Provides detailed methods that are used in the industry, including advice on which methods to use in specific situations - Compares classical methods with the latest technologies to improve practice and application in the real world - Includes case studies for further explanation of methods described in the book
Digital Imaging And Deconvolution
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Author : Enders A. Robinson
language : en
Publisher: SEG Books
Release Date : 2008
Digital Imaging And Deconvolution written by Enders A. Robinson and has been published by SEG Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Computers categories.
Covering ideas and methods while concentrating on fundamentals, this book includes wave motion; digital imaging; digital filtering; visualization aspects of the seismic reflection method; sampling theory; the frequency spectrum; synthetic seismograms; wavelet processing; deconvolution; seismic attributes; phase rotation; and seismic attenuation.
Theory Of Seismic Imaging
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Author : John A. Scales
language : en
Publisher: Springer
Release Date : 1995-05-17
Theory Of Seismic Imaging written by John A. Scales and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-05-17 with Computers categories.
Seismic imaging methods are currently used to produce images of the Earth's subsurface properties at diverse length scales, from high-resolution, near-surface environmental studies for oil and gas exploration to long-period images of the entire planet. This book presents the physical and mathematical basis of imaging algorithms in the context of controlled-source reflection seismology. The approach taken is motivated by physical optics and theoretical seismology. The theory is constantly put into practice via a graded sequence of computer exercises using the widely available SU (Seismic Unix) software package.
Practical Seismic Data Analysis
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Author : Hua-Wei Zhou
language : en
Publisher: Cambridge University Press
Release Date : 2014-01-23
Practical Seismic Data Analysis written by Hua-Wei Zhou 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 2014-01-23 with Nature categories.
Modern introduction to seismic data processing demonstrating exploration and global geophysics applications through real data and tutorial examples that can be demonstrated with the instructor's software of choice. The underlying physics and mathematics of analysis methods is presented, showing students the limitations and potential for creating models of the sub-surface.
Seismic Imaging And Inversion Volume 1
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Author : Robert H. Stolt
language : en
Publisher: Cambridge University Press
Release Date : 2012-02-09
Seismic Imaging And Inversion Volume 1 written by Robert H. Stolt 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 2012-02-09 with Mathematics categories.
Describes the use of inverse scattering theory in seismic imaging for seismic processing practitioners and theoretical geophysicists.
Seismic Diffraction
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Author : Tijmen Jan Moser
language : en
Publisher: SEG Books
Release Date : 2016-06-30
Seismic Diffraction written by Tijmen Jan Moser 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.
The use of diffraction imaging to complement the seismic reflection method is rapidly gaining momentum in the oil and gas industry. As the industry moves toward exploiting smaller and more complex conventional reservoirs and extensive new unconventional resource plays, the application of the seismic diffraction method to image sub-wavelength features such as small-scale faults, fractures and stratigraphic pinchouts is expected to increase dramatically over the next few years. “Seismic Diffraction” covers seismic diffraction theory, modeling, observation, and imaging. Papers and discussion include an overview of seismic diffractions, including classic papers which introduced the potential of diffraction phenomena in seismic processing; papers on the forward modeling of seismic diffractions, with an emphasis on the theoretical principles; papers which describe techniques for diffraction mathematical modeling as well as laboratory experiments for the physical modeling of diffractions; key papers dealing with the observation of seismic diffractions, in near-surface-, reservoir-, as well as crustal studies; and key papers on diffraction imaging.
Interpretation Of Three Dimensional Seismic Data Seventh Edition
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Author : Alistair R. Brown
language : en
Publisher: AAPG
Release Date : 2011-08-20
Interpretation Of Three Dimensional Seismic Data Seventh Edition written by Alistair R. Brown and has been published by AAPG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-08-20 with Science categories.
Hardcover plus DVD
Fundamentals Of Seismic Tomography
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Author : Tien-when Lo
language : en
Publisher: SEG Books
Release Date : 1994
Fundamentals Of Seismic Tomography written by Tien-when Lo and has been published by SEG Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Nature categories.
This tutorial serves as a practical guide on seismic tomography for an audience familiar with basic seismology concepts and calculus. The intent is to provide the reader with a fundamental understanding of both seismic-ray tomography and seismic-diffraction tomography. Case studies illustrate processing methodology, basic interpretation techniques, and pitfalls. This presentation assists the reader in gaining a greater understanding of and appreciation for seismic-tomography articles found in the literature.
Seismic Hydrocarbon Exploration
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Author : Hamid N. Alsadi
language : en
Publisher: Springer
Release Date : 2016-08-26
Seismic Hydrocarbon Exploration written by Hamid N. Alsadi and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-26 with Science categories.
This book presents the essential principles and applications of seismic oil-exploration techniques. It concisely covers all stages in exploration activities (data field acquisition, data processing and interpretation), supplementing the main text with a wealth of (>350) illustrations and figures. The book concentrates on the physics of the applied principles, avoiding intricate mathematical treatment and lengthy theoretical reasoning. A further prominent feature is the inclusion of a separate chapter on 3D surveying techniques and another, equally important chapter on seismic digital signals and the aliasing problem, which is presented in an accessible form. The book is designed to meet the needs of both the academic and industrial worlds. University students and employees of oil-exploration companies alike will find the book to be a valuable resource.