Avo

Author : Satinder Chopra,John P. Castagna
Publisher : SEG Books
Page : 303 pages
File Size : 48,9 Mb
Release : 2014-10-01
Category : Science
ISBN : 9781560803195

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AVO by Satinder Chopra,John P. Castagna Pdf

AVO (SEG Investigations in Geophysics No. 16) by Satinder Chopra and John Castagna begins with a brief discussion on the basics of seismic-wave propagation as it relates to AVO, followed by a discussion of the rock-physics foundation for AVO analysis including the use of Gassmann’s equations and fluid substitution. Then, the early seismic observations and how they led to the birth of AVO analysis are presented. The various approximations for the Zoeppritz equations are examined, and the assumptions and limitations of each approximation are clearly identified. A section on the factors that affect seismic amplitudes and a discussion of the processing considerations important for AVO analysis are included. A subsequent section explores the various techniques used in AVO interpretation. Finally, topics including the influence of anisotropy in AVO analysis, the use of AVO inversion, estimation of uncertainty in AVO analysis, converted-wave AVO, and the future of the AVO method are discussed. Equally helpful to new entrants into the field as well as to seasoned workers, AVO will provide readers with the most up-to-date knowledge on amplitude variation with offset.

Author : Mark Naumovich Berdichevskiĭ,Andreas Rüger
Publisher : SEG Books
Page : 201 pages
File Size : 47,9 Mb
Release : 2002
Category : Mathematics
ISBN : 9781560801078

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Reflection Coefficients and Azimuthal AVO Analysis in Anisotropic Media by Mark Naumovich Berdichevskiĭ,Andreas Rüger Pdf

Observing offset-dependent seismic reflectivity has proven to be a valuable exploration tool for the direct detection of hydrocarbons. This monograph provides a comprehensive review of reflection coefficients and their approximations in isotropic media, followed by an in-depth discussion of reflection amplitudes in anisotropic media. No prior knowledge of seismic anisotropy is assumed, and considerable effort is spent to introduce wave propagation and medium parameterizations useful for surface seismic applications in the presence of anisotropy. The first anisotropic model discussed is transverse isotropy with a vertical axis of symmetry (VTI media), typically used to describe shale sequences. Then the study of VTI reflection coefficients is extended to transverse isotropy with a horizontal axis of symmetry (HTI) - the symmetry system that describes a system of parallel vertical cracks. Analysis of the "Shuey-type" approximate HTI P-wave reflection coefficient makes it possible to devise fracture-detection algorithms based on the inversion of azimuthal differences of the P-wave AVO gradient. The monograph also presents analysis of shear- and converted-wave reflection coefficients for HTI and orthorhombic models, discusses practical aspects of applying the azimuthal AVO analysis, and mentions promising recent results.

Author : Robert S. Gullco,Malcolm Anderson
Publisher : CRC Press
Page : 190 pages
File Size : 42,8 Mb
Release : 2022-02-14
Category : Science
ISBN : 9781000539295

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Elements of Rock Physics and Their Application to Inversion and AVO Studies by Robert S. Gullco,Malcolm Anderson Pdf

The ultimate aim of the oil exploration industry is to determine the distribution of rock types and underground fluids. At this stage, we can actually determine the distribution of several underground physical properties with a certain accuracy. The challenge for the rock physicist is to translate those physical properties (P-velocity, S-velocity, density) into rock types and fluids (gas-, or oil-, or water-bearing sand, shale). If performed correctly, dry holes can be avoided and millions of dollars can be saved. Ultimately, an integrated approach is required. This book deals with a series of topics in rock physics, including elasticity, pore pressure, incompressibility of rocks and the Gassmann equation, fluid substitution, forward modelling and empirical equations, rock physics applications to AVO studies and inversion studies, and the Differential Effective Medium (DEM) method. It is generally addressed to the practitioner (geophysicist, geologist), and in some instances, detailed instructions are furnished to perform a particular task. Some chapters, on the other hand, are theoretical and more mathematical, and are expected to be of interest to both practitioners and students alike. Other chapters include innovative ideas that could, for instance, be tested by oil companies that have substantial amounts of data at their disposal. This book will serve as a useful guide to practitioners (geologists, petrophysicists, geophysicists and reservoir engineers) and students/academics.

Author : Alessandro Biggi,Francesco Brachetti,Alberto Gramigni
Publisher : Houghton Mifflin
Page : 227 pages
File Size : 50,5 Mb
Release : 2018-12-04
Category : Cooking
ISBN : 9781328497932

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Avocaderia by Alessandro Biggi,Francesco Brachetti,Alberto Gramigni Pdf

100 amazing avocado recipes from Avocaderia--the all-avocado bar that's taken the world by storm

Author : William Ireland Knapp
Publisher : Unknown
Page : 484 pages
File Size : 49,6 Mb
Release : 1882
Category : Spanish language
ISBN : UOM:39015005073641

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A Grammar of the Modern Spanish Language as Now Written and Spoken in the Capital of Spain by William Ireland Knapp Pdf

Author : Marathon Montrose Ramsey
Publisher : Unknown
Page : 692 pages
File Size : 40,6 Mb
Release : 1894
Category : Spanish language
ISBN : HARVARD:32044019931617

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A text-book of modern Spanish, as now written and spoken in Castile and the Spanish-American republics by Marathon Montrose Ramsey Pdf

Author : William Ireland Knapp
Publisher : Unknown
Page : 506 pages
File Size : 51,9 Mb
Release : 1885
Category : Spanish language
ISBN : OXFORD:590567708

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A grammar of the modern Spanish language by William Ireland Knapp Pdf

Author : Anonim
Publisher : Unknown
Page : 1148 pages
File Size : 44,6 Mb
Release : 2001
Category : Prospecting
ISBN : STANFORD:36105111104258

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Expanded Abstracts with Biographies by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 406 pages
File Size : 45,8 Mb
Release : 2008-04
Category : Geophysics
ISBN : STANFORD:36105132739058

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The Leading Edge by Anonim Pdf

Author : John P. Castagna,Milo M. Backus
Publisher : SEG Books
Page : 356 pages
File Size : 54,7 Mb
Release : 1993
Category : Science
ISBN : 9781560800590

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Offset-dependent Reflectivity by John P. Castagna,Milo M. Backus Pdf

Recognizing the need for education and further research in AVO, the editors have compiled an all-encompassing treatment of this versatile technology. In addition to providing a general introduction to the subject and a review of the current state of the art, this unique volume provides useful reference materials and data plus original contributions at the leading edge of AVO technologies.

Author : American Institute of Electrical Engineers
Publisher : Unknown
Page : 1632 pages
File Size : 55,9 Mb
Release : 1957
Category : Electrical engineering
ISBN : IOWA:31858033577614

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Transactions of the American Institute of Electrical Engineers by American Institute of Electrical Engineers Pdf

Author : Anonim
Publisher : Unknown
Page : 440 pages
File Size : 42,6 Mb
Release : 1978
Category : Consumer education
ISBN : UCAL:B3359489

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Consumers Digest Guide to Discount Buying by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 986 pages
File Size : 43,8 Mb
Release : 1993
Category : Prospecting
ISBN : STANFORD:36105016275419

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Exploration Geophysics by Anonim Pdf

Author : Society of Economic Paleontologists and Mineralogists. Gulf Coast Section. Foundation. Research Conference
Publisher : Unknown
Page : 370 pages
File Size : 52,7 Mb
Release : 1996
Category : Geology, Stratigraphic
ISBN : IND:30000146473792

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Stratigraphic Analysis Utilizing Advanced Geophysical, Wireline, and Borehole Technology for Petroleum Exploration and Production by Society of Economic Paleontologists and Mineralogists. Gulf Coast Section. Foundation. Research Conference Pdf

Author : Jerald G. Graeme
Publisher : McGraw Hill Professional
Page : 272 pages
File Size : 43,7 Mb
Release : 1996
Category : Computers
ISBN : 007024247X

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Photodiode Amplifiers: OP AMP Solutions by Jerald G. Graeme Pdf

Light photons impinging upon a semiconductor material in the vicinity of a P-N junction release conduction carriers to produce current flow through the photodiode effect. Photodiode amplifiers convert this current to a voltage in a relationship that remains linear as long as the amplifier eliminates signal voltage swing from the photodiode. For this purpose, the simple current-to-voltage converter or transimpedance amplifier presents a virtual ground to the diode. However, when connected to a photodiode, this simple op amp circuit displays surprising multidimensional constraints that defy conventional op amp intuition.