Implicit noise reduction and trace interpolation in wavefield depth extrapolation

How-Wei Chen; Che-Wei Chang

doi:10.1071/ASEG2001ab017

ISSN: 2202-0586
E-ISSN:

oa Implicit noise reduction and trace interpolation in wavefield depth extrapolation
Authors How-Wei Chen^a and Che-Wei Chang^a
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^a Inst. of Seismology/lnst. of Applied Geophysics Natl. Chung Cheng University, Taiwan, R.O.C., [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2001, Issue ASEG2001 - 15th Geophysical Conference, Dec 2001, p. 1 - 3
DOI: https://doi.org/10.1071/ASEG2001ab017
- Published online: 01 Dec 2001

Abstract

Various types of noise can obscure reflections and refractions on deep crustal seismic data. This study presents a simple but elegant approach to true wavefield processing where noise reduction and trace interpolations are applied implicitly during depth extrapolation. No velocity and source/receiver information is required and the proposed approach can be combined with conventional or available processing algorithms. Prestack processing is successfully applied to a complicated OBS data set, demonstrating an improvement in noise reduction and effective trace interpolation.

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2001-12-01

2026-01-12

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References

Chen, H. W. and McMechan, G.A., 1992, 3-D pre-stack depth migration for salt and subsalt structures using reverse-VSP data, J. Seis. Explor., 1, 281-292.
McMechan, G. A., 1989, A review of seismic acoustic imaging by reverse-time migration, Int. J. Imag. Sys. Tech., 1, 18-21, 1989.
McMechan, G. A. and Chen, H. W. , 1990, Implicit static corrections in pre-stack migration of common-source data, Geophysics, 55, 757-760.
McMechan, G. A. and Sun, R., 1991, Depth-filtering of first breaks and ground roll, Geophysics, 56, 390-396.
Rajasekaran, S., and McMechan, G. A., 1995, Prestack processing of land data with complex topography, Geophysics, 60, 1875-1886.
Zhu, J., and Line, L. R., 1997, Implicit interpolation in reverse-time migration, Geophysics, 62, 906-917.

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Article Type: Research Article

Keyword(s): Data processing; Depth extrapolation; Noise reduction; Trace interpolation; Wavefield extrapolation

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Abstract

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