Seismic velocity and migration determination for complex geological areas

Gregory J. Blackburn

doi:10.1071/EG983143

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

Seismic velocity and migration determination for complex geological areas
Authors Gregory J. Blackburn^a
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^a Petrocon Australia Pty Ltd, , 192 Macquarie Street, Hobart, Tas, . 7000
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 14, Issue 3-4, Sep 1983, p. 143 - 150
DOI: https://doi.org/10.1071/EG983143
- Published online: 01 Sep 1983

Abstract

Common depth point data in seismic reflection surveys are now being recorded with ever increasing source-receiver offset distances. For such wide aperture seismic data the traditional methods of interpretation may fail, since velocity analyses and signal enhancement methods based on hyperbolic travel-time curves are no longer appropriate. The present paper shows, however, that even in steeply dipping environments both velocity determination and depth migration determination reduce to simple mathematical expressions. These expressions can be applied to solve complicated overburden problems.

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1983-09-01

2026-01-14

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References

Blackburn, G. J. (1980), ‘Errors in stacking velocity-true velocity over complex geologic situations’, Geophysics 45, 1465-88.
Claerbout, J. F. (1976) Fundamentals of Geophysical Data Processing with Applications to Petroleum Prospecting. McGraw-Hill, New York.
Hubral, P. & Krey, T. (1980), ‘Interval velocities from reflection time measurements’, Soc. of Explor. Geophys. Special Pub.
Levin, F. K. (1971), ‘Apparent velocity from dipping interface reflections’. Geophysics 36, 510-16.
Shah, P. M. (1973), ‘Use of wavefront curvature to relate seismic data with subsurface parameters’. Geophysics 38, 812-25.
Taner, M. T. & Koehler, F. (1969), ‘Velocity spectra-digital computer derivation and applications of velocity functions’. Geophysics 34, 859-81.

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Article Type: Research Article

Keyword(s): geological; migration; ray-path modelling; reflection; seismic; velocity

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Seismic velocity and migration determination for complex geological areas

Abstract

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