The AVO Modelling Volume

Brian H. Russell; Laurence R. Lines; Keith W. Hirsche; Janusz Peron; Daniel P. Hampson

doi:10.1071/EG01264

ISSN: 0812-3985
E-ISSN: 1834-7533

The AVO Modelling Volume
Authors Brian H. Russell^a, Laurence R. Lines^b, Keith W. Hirsche^c, Janusz Peron^d and Daniel P. Hampson^e
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^a Brian Russell [email protected] ^b Larry Lines [email protected] ^c Keith Hirsche [email protected] ^d Dan Hampson [email protected] ^e Janusz Peron [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 32, Issue 3-4, Sep 2001, p. 264 - 270
DOI: https://doi.org/10.1071/EG01264
- Published online: 01 Sep 2001

Abstract

An AVO modelling scheme is proposed in which we create a 3D volume of modelled CDP gathers by varying two physical parameters, one in the in-line direction, and one in the cross-line direction. This 3D volume is then processed using conventional AVO analysis techniques, and the results are interpreted using time or structure slices. Three illustrative examples are presented, the first involving P-wave velocity change versus S-wave velocity change, the second involving P-wave velocity change versus thickness change, and the third involving porosity versus water saturation change.

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References

Aki, K., and Richards, P.G., 1980, Quantitative seismology: Theory and methods: W.H. Freeman and Company.
Gassmann, F., 1951, Uner die Elastizität poroser Medien: Vierteljahrsschrift der Naturforschenden Gesellschaft in Zurich, 96, 1-23.
Gregory, A.R., 1977, Aspects of rock physics from laboratory and log data that are important to seismic interpretation: in seismic stratigraphy - applications to hydrocarbon exploration, AAPG memoir 26.
Shuey, R.T., 1985. A simplification of the Zoeppritz equations: Geophysics, 50, 609-614.
Wiggins, R., Kenny, G.S., and McClure, C.D., 1983, A method for determining and displaying the shear-velocity reflectivities of a geologic formation: European Patent Application 0113944.

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Article Type: Research Article

Keyword(s): AVO; Biot-Gassmann; modelling; multiple attributes; rock physics

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The AVO Modelling Volume

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