Cumulative Difference Statics: method and application

J. H. Leven; F. J. Taylor

doi:10.1071/EG989365

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

Cumulative Difference Statics: method and application
Authors J. H. Leven^a and F. J. Taylor^a
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^a Bureau of Mineral Resources Geology and Geophysics, P.O. Box 378 Canberra, 2601, Australia
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 20, Issue 3, Jun 1989, p. 365 - 370
DOI: https://doi.org/10.1071/EG989365
- Published online: 01 Jun 1989

Abstract

The Cumulative Difference Statics (CDS) method, applied to routine reflection profiles in areas of rapidly-changing near-surface weathering, provides a robust and accurate estimation of static corrections using the first-break refraction data. The method uses the first-break arrival times of refracted energy between paired shots to track the variation in the travel-time through the weathered layer. Comparison of the CDS method with conventional refraction static methods in basement areas illustrates the ability of the CDS method to handle the rapid variation in the static corrections which often occurs in these areas. The CDS method can be readily applied to the problem of calculating the static corrections for both two and three dimensional seismic surveys.

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1989-06-01

2026-01-17

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References

Booker, A.H., Linville, A.F., & Wason, C.B., (1976). ‘Long wavelength static estimation’. Geophysics, 41, 939-959.
Coppens, R, (1985). ‘First arrival picking on common-offset trace collections for automatic estimation of static corrections’.Geophysical Prospecting, 33, 1212-1231.
Gulunay, N., (1988). ‘Refraction statics through differential receiver delay times’.Presented at the 1st ASEG/SEG Convention in Adelaide, 1988.
Hawkins, L.V., (1961). The reciprocal method of routine shallow seismic refraction investigation’.Geophysics, 26, 806-819.
Inoue, H., (1986). ‘A least squares smooth fitting for irregularly spaced data: Finite-element approach using the cubic B spline basis’.Geophysics, 51, 2051-2066.
Leven, J.H. & Rickard, M., (1987). Tumut Trough seismic survey, New South Wales, 1987’.Bureau of Mineral Resources, Australia. Record 1987/62 (unpublished).
Palmer, D., (1981). The generalized reciprocal method of refraction seismic interpretation’.Geophysics, 37, 769-787.
Schultz, P.S., & Lau, A., (1984). ‘Poststack estimation of three-dimensional crossline statics’.Geophysics, 49, 227-236.
Taner, M.T., Koehler, F, & Alhilal, K.A., (1974). ‘Estimation and correction of near-surface time anomalies’.Geophysics, 39, 441-463.
Taylor, F.J., (1988). ‘Static corrections for land seismic processing’.Bureau of Mineral Resources, Australia. Record 1988/49 (unpublished).
Wiggins, R.A., Lamer, K.L., & Wisecup, R.D., (1976). ‘Residual statics analysis as a general linear inverse problem’.Geophysics, 41, 922-938.

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Article Type: Research Article

Keyword(s): 2D or 3D surveys; refraction first breaks; seismic static corrections

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Cumulative Difference Statics: method and application

Abstract

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