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Saturday, May 16, 2020 | History

3 edition of Reflection coefficients and azimuthal AVO analysis in anisotropic media found in the catalog.

Reflection coefficients and azimuthal AVO analysis in anisotropic media

Andreas RГјger

Reflection coefficients and azimuthal AVO analysis in anisotropic media

by Andreas RГјger

  • 248 Want to read
  • 5 Currently reading

Published by Society of Exploration Geophysicists in Tulsa, OK .
Written in English

    Subjects:
  • Seismic reflection method

  • Edition Notes

    Statementby Andreas Rüger
    SeriesGeophysical monograph series -- no. 10
    Classifications
    LC ClassificationsTN269.84 .R84 2002
    The Physical Object
    Paginationxi, 189 p. :
    Number of Pages189
    ID Numbers
    Open LibraryOL17074078M
    ISBN 101560801077
    LC Control Number2001020118

    REFLECTION COEFFICIENTS AND AZIMUTHAL AVO ANALYSIS IN ANISOTROPIC MEDIA. Andreas Rüger , Society of Exploration Geophysicists Monograph Series.   Abstract. This paper is devoted to pre-stack amplitude analysis of reflection seismic data from anisotropic (e.g., fractured) media. Geometrical-spreading correction is an important component of amplitude-variation-with-offset (AVO) analysis, which provides high-resolution information for anisotropic parameter estimation and fracture by:

    Compensation for geometrical spreading along a raypath is one of the key steps in AVO amplitude-variation-with-offset analysis, in particular, for wide-azimuth surveys. Here, we propose an efficient methodology to correct long-spread, wide-azimuth reflection data for geometrical spreading in stratified azimuthally anisotropic media. The P-wave geometrical-spreading factor is expressed through.   Reflection coefficients and azimuthal AVO analysis in anisotropic media. SEG geophysical monograph series number SEG geophysical monograph series number Society of Exploration : Xiaoqin Cui, Laurence Lines, Edward Stephen Krebes, Suping Peng.

    Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Easily share your publications and get them in front of Issuu’s. Andreas Ruger is the author of Reflection Coefficients and Azimuthal Avo Analysis in Anisotropic Media ( avg rating, 0 ratings, 0 reviews, published 2.


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Reflection coefficients and azimuthal AVO analysis in anisotropic media by Andreas RГјger Download PDF EPUB FB2

Amplitudes of reflected seismic waves can change significantly with increasing offset between the seismic source and the receiver. Observing this offset-dependent reflectivity has proven to be a valuable exploration tool for the direct detection of. 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 some promising recent : Reflection Coefficients and Azimuthal AVO Analysis in Anisotropic Media - Mark Naumovich Berdichevskiĭ, Andreas Rüger - Google Books Observing offset-dependent seismic reflectivity.

Print book: EnglishView all editions and formats Summary: Observing offset-dependent seismic reflectivity has proven to be a valuable exploration tool for the direct detection of hydrocarbons. Reflection Coefficients & Azimuthal AVO Analysis in Anisotropic Media by Andreas Ruger,available at Book Depository with free delivery worldwide.

Azimuthal variation — functional type 89 Analysis of AVO gradient variations 91 AVO-gradient inversion in HTI media 96 Azimuthal variation of the higher-angle term 97 Azimuthal changes — transmission coefficient 98 7 Shear waves in HTI symmetry planes Symmetry-plane S-wave surveys Insight into shear-wave.

This paper is based on Thomsen assume, takes into account the equations between the anisotropic angle and the isotropic angle with the same horizontal slowness, re- deduces AVO equations for VTI media again.

perturbation in Zoeppritz equations caused by anisotropic parameters [4]. Author: Andreas. Rüger. Reflection and transmission of plane waves at a plane boundary between two isotropic media are two of the most fundamental subjects in wave propagation.

Zoeppritz () w as among the first to investigate and publish their analytic solutions. Reflection Coefficients and Azimuthal Avo Analysis in Anisotropic Media的话题 (全部 条) 什么是话题 无论是一部作品、一个人,还是一件事,都往往可以衍生出许多不同的话题。. The reflection coefficients for HTI media are approximated as follow (Ruger, ): i i i G G Z Z R i V V V () 4 () 2 2 2 2 2 2 2 () 2 cos sin tan 2 1 cos sin 2 2 2 2 1 2 1 (,),(1) where Z is P impedance, and are isotropic P and S velocities, and G is shear modulues.

The approximate reflection coefficient in equation (1) relates the AVO. Although most current implementations of azimuthal AVO analysis oper- ate with HTI (TI with a horizontal symmetry axis) media, orthorhombic symmetry is.

The results of this research improve our understanding of the behavior of re-flection coefficients in the presence of anisotropy. The linearized approximations derived here are helpful in obtaining simple representations of otherwise incomprehensibly complex reflection-coefficient behavior in anisotropic media.

Anisotropic Reflection Coefficient Thomsen () derived the linearized PP reflection coefficient for small contrast weak anisotropy along a vertical plane: as did Vavryuk and Psencίk () using perturbations from background P-wave velocities, α, and S-wave velocities β: Where.

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 some promising recent results. Also Available: Offset Dependent Reflectivity-Theory and Practice of AVO - ISBN Cited by: ♥ Book Title: Reflection Coefficients and Azimuthal AVO Analysis in Anisotropic Media ♣ Name Author: Mark Naumovich Berdichevskiĭ ∞ Launching: Info ISBN Link: ⊗ Detail ISBN code: ⊕ Number Pages: Total sheet ♮ News id: 9saHEPRjU_IC Download File Start Reading ☯ Full Synopsis: "Observing offset-dependent seismic reflectivity has proved to.

Uncertainties in azimuthal AVO analysis. Approximations of reflection coefficient for HTI media, plane P-wave reflection coefficients in azimuthally anisotropic media are extended to.

In weakly anisotropic VTI media, it is assumed that the ray directions of phase and group velocities are consistent, and P wave excites the horizontal interface, we take into account the equations between the anisotropic angle and the isotropic angle with the same horizontal slowness, and re-deduce AVO equations for VTI media : Xiaoting Li, Hongwei Wang, Suping Peng, Wenfeng Du, Yingchuan Sun.

Frequency Dependent Reflection Coefficients in Anisotropic Media Satish K. Sinha, Rajiv Gandhi Institute of Petroleum Technology Evgeni M.

Chesnokov, University of Houston Summary The reflectivity approach is followed to consider wave propagation in a multi-layered anisotropic medium. This approach. Pšenčik I. and J. Martins,Properties of weak contrast PP reflection/transmission coefficients for weakly anisotropic elastic media: Studia Geophysica et Geodaetica, 45, Rüger, A.,Reflection coefficients and azimuthal AVO Analysis in anisotropic media: SEG geophysical monograph series number Soc.

Expl. Geophys. Azimuthal Reflection Coefficients and Estimation of Anisotropic Parameters from Seismic Data Subhashis Mallick1, Mrinal K.

Sen2 1Chevron Energy Technology Company. 2Institute for Geophysics, University of Texas at Austin Summary In this paper, we study the dependence of P- and converted-wave reflection coefficients with incidence angle and.

Azimuthal AVO What is azimuthal AVO?: • Analysis of incidence angle and azimuthal amplitude variations of reflection coefficients; • Measures change in elastic properties at an interface. Why is azimuthal AVO used?: • Better vertical resolution than propagation methods (e.g.

VVAZ, S .Azimuthal Amplitude Versus Offset is a new seismic method that is gaining popularity amongst those investigating fractured reservoirs. It is also known as AVAZ for Amplitude Versus Angle and aZimuth, AVOA for Amplitude Versus Offset and Azimuth and AzAVO.

This paper will use the term AVAZ. 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 : Andreas Ruger.