Estimating residual statics using prestack migration

John C Bancroft; Xinxiang Li

doi:10.1071/ASEG2001ab003

ISSN: 2202-0586
E-ISSN:

oa Estimating residual statics using prestack migration
Authors John C Bancroft^a and Xinxiang Li^b
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^a University of Calgary/CREWES, , Canada, [email protected] ^b Sensor Geophysical Ltd, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2001, Issue ASEG2001 - 15th Geophysical Conference, Dec 2001, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2001ab003
- Published online: 01 Dec 2001

Abstract

A method is presented for estimating residual statics that are computed prior to normal moveout correction. No velocity information is required, and the offset and structure terms are eliminated from the decomposition.

Model source (shot) records are formed using the EOM method of prestack migration to provide a one-to-one trace for cross-correlation. After cross-correlation, the estimated time shifts are decomposed directly into source and receiver statics.

The method is stable for ling time windows that are input to the cross-correlation, and provides solutions for structured data where other methods fail.

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2001-12-01

2026-01-23

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References

Bancroft, J. C, Geiger, H. D., and Margrave, G. F., 1998, The equivalent offset method of prestack time migration: Geophysics, Vol. 63, NO. 6, P. 2042-2053.

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Article Type: Research Article

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Abstract

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