Seismic Processing And Imaging With Diffractions
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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.
Seismic Processing And Imaging With Diffractions
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Author : Sergius Dell
language : en
Publisher: Sudwestdeutscher Verlag Fur Hochschulschriften AG
Release Date : 2012
Seismic Processing And Imaging With Diffractions written by Sergius Dell and has been published by Sudwestdeutscher Verlag Fur Hochschulschriften AG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Reflected and diffracted waves have different nature and role in the applied seismics. Diffractions itself can be classified in both real seismic and hypothetical diffractions. The real seismic diffractions are seismic waves which are scattered on small heterogeneities in the subsurface or diffracted at the edges and tips, and recorded as the diffracted part of the whole wavefield. To image objects beyond the classical Rayleigh limit, it is indispensable to use real seismic diffractions.The hypothetical diffractions are mathematical constructions resulting from Huygens principle which helps to correctly image reflected events. These Huygens diffractions build a kernel of seismic reflection imaging, particularly, Kirchhoff migration. The migrated data represent pure reflected data with a higher resolution. Considering either real or Huygens diffractions allows to adjust seismic tools for particular needs depending on the interpreter's goal and the geological interpretation. The book is intended for all who want to have a look at non-conventional seismic methods.
Seismic Processing And Imaging With Diffractions
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Author : Sergius Dell
language : en
Publisher:
Release Date : 2012
Seismic Processing And Imaging With Diffractions written by Sergius Dell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Processing And Imaging Of Seismic Diffraction Using Multiparameter Stacking Attributes
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Author : Parsa Bakhtiari Rad
language : en
Publisher:
Release Date : 2016
Processing And Imaging Of Seismic Diffraction Using Multiparameter Stacking Attributes written by Parsa Bakhtiari Rad and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
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 Business & Economics 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
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.
Advance Wave Modeling And Diffractions For High Resolution Subsurface Seismic Imaging
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Author : Deva Prasad Ghosh
language : en
Publisher:
Release Date : 2019
Advance Wave Modeling And Diffractions For High Resolution Subsurface Seismic Imaging written by Deva Prasad Ghosh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Electronic books categories.
Seismic modeling and Imaging for the small-scale feature in a complex subsurface geology such as salt deposit, fracture reservoir, and Carbonate is not casual because of propagated wave affected by many objects once it hits the geologic structure in the subsurface. The principal goal of newly developed seismic modeling & imaging is to get a subsurface image of structural features with greatest sharpness or resolution. Using model dataset the Sigsbee and Marmousi, we illustrate the accuracy of conventional and advance wave modeling techniques. However, in conventional a Finite difference (FD) algorithm is used to generate the data and in advanced wave modeling, the low-rank (LR) approximation is used to acquire zero-offset configuration data. A field dataset from Malaysian basin is re-processed and imaged using diffraction imaging which shows an enhancement in structural interpretation. Furthermore, the results gained from the proposed modeling and imaging approach significantly enhance the bandwidth of the imaged data. Finally, a frequency spectrum shows a recovery of low-frequency from 0 to 60 Hz which is an optimal resolution of seismic imaging.
Theory Of Seismic Diffractions
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Author : Kamill Davydovich Klem-Musatov
language : en
Publisher: SEG Books
Release Date : 1994
Theory Of Seismic Diffractions written by Kamill Davydovich Klem-Musatov 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 Diffraction categories.
Presents a complete mathematical description of diffractions caused by seismic velocity discontinuities. Diffraction theory provides important physical insights into seismology and is a necessary part of describing the nature of a seismogram. The author describes elastic wave theory and relates it to the high-frequency approximations of ray theory.
Elements Of Seismic Imaging And Velocity Analysis
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Author :
language : en
Publisher:
Release Date : 2018
Elements Of Seismic Imaging And Velocity Analysis written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
Illustrated Seismic Processing
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Author : Stephen J. Hill
language : en
Publisher: SEG Books
Release Date : 2019
Illustrated Seismic Processing written by Stephen J. Hill and has been published by SEG Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Science categories.
Provides a foundation for understanding the fascinating field of seismic processing. Written for the non-expert, this two-volume introductory text reveals the limitations and potential pitfalls of seismic data, prepares both seismic interpreters and acquisition specialists for working with seismic processing geophysicists, and much more.