Deconvolution of correlation noise in coded-impact seismic systems

Stewart Fletcher; Steve Hearn; Shaun Strong

doi:10.1071/ASEG2013ab280

ISSN: 2202-0586
E-ISSN:

oa Deconvolution of correlation noise in coded-impact seismic systems
Authors Stewart Fletcher^a, Steve Hearn^b and Shaun Strong^c
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^a Velseis Pty Ltd and University of Qld., Brisbane, , Australia, [email protected] ^b Velseis Pty Ltd and University of Qld., Brisbane, , Australia, [email protected] ^c Velseis Pty Ltd and University of Qld., Brisbane, , Australia, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2013, Issue ASEG2013 - 23rd Geophysical Conference, Dec 2013, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2013ab280
- Published online: 01 Dec 2013

Abstract

Coded-impact seismic sources, including Mini-SOSIE and SIST, deliver a sequence of impacts in a controlled pattern. These sources generate seismic data with acceptable bandwidth and signal-to-noise, but also introduce correlation noise proportional to the rate of production.

We examine a method for correlation-noise attenuation utilising a Weiner filter designed on the known impact sequence. Numerical models demonstrate that the algorithm can achieve very significant attenuation of correlation noise in both Mini-SOSIE and SIST records. The practical viability of the approach is examined with reference to real-data examples.

This procedure has the potential to provide records of acceptable quality from rapid impact sequences, yielding significant productivity benefits over current Mini- SOSIE and SIST approaches.

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2013-12-01

2026-01-22

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References

Barbier, M., and Bondon, P. M. R. Viallix, JR, 1976, Mini- Sosie for shallow land seismology, Geophysical Prospecting, 24, 518-527.
Park, C. B., Miller, R. D., Steeples, D. W., and Black, R. A., 1996, Swept impact seismic technique (SIST). Geophysics, 61, 1789-1803.
Robinson, E. A., and Treitel, S., 2000, Geophysical signal analysis. Society of Exploration Geophysicists.
Strong, S., and Hearn, S., 2004, Numerical modelling of pseudo-random land seismic sources. ASEG Extended Abstracts, 1-4.
Weisstein, E. W., 2003, CRC concise encyclopaedia of mathematics. CRC press.

/content/journals/10.1071/ASEG2013ab280

Article Type: Research Article

Keyword(s): correlation noise; deconvolution; filtering; Mini-SOSIE; SIST

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oa Deconvolution of correlation noise in coded-impact seismic systems

Abstract

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