Demultiple for wide-tow broadband acquisition in a shallow water environment: a case study from the NW shelf, Australia

Mike Hartley; Shuo Ji; Alex Browne

doi:10.1071/ASEG2016ab285

25th International Conference and Exhibition – Interpreting the Past, Discovering the Future

ISSN: 2202-0586
E-ISSN:

oa Demultiple for wide-tow broadband acquisition in a shallow water environment: a case study from the NW shelf, Australia
Authors Mike Hartley^a, Shuo Ji^b and Alex Browne^c
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^a CGG 10-16 Queen St, Melbourne, [email protected] ^b CGG 1 Ord St, West Perth, [email protected] ^c CGG 10-16 Queen St, Melbourne, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2016, Issue 25th International Conference and Exhibition – Interpreting the Past, Discovering the Future, Dec 2016, p. 1 - 5
DOI: https://doi.org/10.1071/ASEG2016ab285
- Published online: 01 Dec 2016

Abstract

Given its importance, shallow water demultiple has been under constant investigation for many years. Significant progress has been made, effective processing flows have been established, and excellent results have been achieved in different basins across the world. There remain however significant challenges with demultiple in shallow water environments, especially when it comes to broadband acquisition with a wide tow configuration. In this paper, we discuss a shallow water demultiple processing flow used on a recently acquired wide tow broadband dataset in the Northern Carnarvon basin, North West shelf Australia. We demonstrate that the removal of shallow water multiples can be optimized in data acquired in this manner by using a combination of demultiple techniques.

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2016-12-01

2026-01-13

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References

Wang, P., Wu, Q., Lee, C., Zhao, W., and Li, Y., 2014; 3D De-ghosting for Full-Azimuth and Ultra-Long Offset Marine Data. SEG Annual International Meeting, Denver 2014, Expanded Abstracts.
Poole, G., 2013 Pre-Migration Receiver De-ghosting and Re-damming for Variable Depth Streamer Data. SEG Annual International Meeting, Houston 2013, Expanded Abstracts.
Hung, B., 2011; Workflow For Surface Multiple Attenuation in Shallow Water, IPTC14770.
Wang, P., Huang, H., and Hu, S., 2015; Selective Input Adaption of Model Based Water-Layer Demultiple, EAGE Annual Convention & Exhibition, Madrid, 2015, Expanded Abstracts.
Hung, B., and Xiang, W., 2013: High Fidelity Adaptive Curvelet Domain Primary-Multiple Separation. EAGE Annual Convention & Exhibition, London 2013, Expanded Abstracts.

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Article Type: Research Article

Keyword(s): adaptive subtraction; NW shelf Australia; shallow water demultiple

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oa Demultiple for wide-tow broadband acquisition in a shallow water environment: a case study from the NW shelf, Australia

Abstract

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