A note on shot static corrections for expanding spread profiling

C. Wright; F. J. Taylor

doi:10.1071/EG986213

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

A note on shot static corrections for expanding spread profiling
Authors C. Wright^a and F. J. Taylor^a
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^a Bureau of Mineral Resources, , GPO Box 378, Canberra, , ACT, 2601, , Australia
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 17, Issue 4, Dec 1986, p. 201 - 212
DOI: https://doi.org/10.1071/EG986213
- Published online: 01 Dec 1986

Abstract

The Bureau of Mineral Resources has recently recorded expanding spread reflection profiles coincident with its regional near-vertical incidence seismic reflection lines primarily to obtain velocity estimates throughout the crust. Accurate shot corrections are required in the first stage of the processing of these expanding spread profiles. A simple least-squares procedure that uses the time differences between reversed shot-receiver paths has been developed for the calculation of shot static corrections. Numerical examples from an expanding spread recorded across the Nebine Ridge in south-east Queensland have been given to show that the standard errors in these corrections for high quality records should generally not exceed 1.0 ms.

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1986-12-01

2026-01-22

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References

Musgrave A.W. (1962) ‘Applications of the expanding reflection spread’, Geophysics 27, 981-93.
Noble B. (1964), Numerical Methods, Vol. 1, pp. 156. Oliver and Boyd, London and Edinburgh.
Sexton M. & Taylor F.J. (1983), Central Eromanga Basin Seismic Survey, Queensland, 1981: Operational Report, Bureau of Mineral Resources (Australia) Record, 1983/13.
Sexton M. & Taylor F.J. (1986), Central Eromanga Basin Seismic Survey, Queensland, 1982: Operational Report, Bureau of Mineral Resources (Australia) Record, (in press).
Wake-Dyster K.D. & Johnson D.W. (1985), Southeast Queensland Seismic Survey, 1984: Operational Report, 17 pp. Bureau of Mineral Resources (Australia) Record, 1985/42.
Wright C. & Barker M. (1986), ‘The use of an expanding spread reflection profile to determine shallow crustal structure and large scale static corrections’, Geophysical Prospecting.
Wright C. & Finlayson D.M. (1986), ‘Refracted and reflected shear waves recorded on an expanding spread reflection profile’, Journal of Geophysical Research.

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Article Type: Research Article

Keyword(s): expanding spreads; statics

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A note on shot static corrections for expanding spread profiling

Abstract

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