Multi-Azimuth and Wide-Azimuth lessons for better seismic imaging in complex settings

Andrew S. Long; William Pramik; Eivind Fromyr; Renaud Laurain; Chris Page

doi:10.1071/ASEG2006ab098

ISSN: 2202-0586
E-ISSN:

oa Multi-Azimuth and Wide-Azimuth lessons for better seismic imaging in complex settings
Authors Andrew S. Long^a, William Pramik^b, Eivind Fromyr^c, Renaud Laurain^d and Chris Page^e
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^a PGS Marine Geophysical, Level 4, IBM Centre West Perth, , WA, 6005, Australia, [email protected] ^b PGS Marine Geophysical, 15150 Memorial Drive Houston, , TX, 77079, USA, [email protected] ^c PGS Marine Geophysical, PGS Court, Hallway Green Walton-on-Thames, , Surrey UK, , KT12 1RS, [email protected] ^d PGS Marine Geophysical, Strandveien 4 1366 Lysaker, Norway, [email protected] ^e PGS Marine Geophysical, PGS Court, Halfway Green Walton-on-Thames, , Surrey UK, , KT12 1RS, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2006, Issue ASEG2006 - 18th Geophysical Conference, Dec 2006, p. 1 - 5
DOI: https://doi.org/10.1071/ASEG2006ab098
- Published online: 01 Dec 2006

Abstract

In practice, acquisition and processing solutions to poor seismic illumination begin with an effort to compensate for gross holes in the density of target illumination using conventional Narrow-Azimuth streamer acquisition. As the complexity of the problem increases the case for Multi-Azimuth acquisition builds. Wide-Azimuth acquisition is required in the most challenging scenarios. Correspondingly, the processing and imaging technologies deployed must also improve in sophistication. Recent and ongoing global R&D efforts, complementing several large innovative projects, demonstrate that each of the target illumination concepts and challenges discussed here can be evaluated and contrasted in clear and unambiguous terms.

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References

Gaus, D. and Hegna, S., 2003, Improved imaging by pre-stack depth migration of multi-azimuth towed streamer seismic data: EAGE Expanded Abstracts, C02.
Long, A., 2004, Postsurvey calibration of 3D seismic results to presurvey modeling predictions: The Leading Edge, 23, 10, 1033-1036.
Padhi, T., and Holley, T.K., 1997, Wide azimuths – why not?: The Leading Edge 16, 02, 175 - 177.
Ramsden, C., Bennett, G., and Long, A., 2005, High resolution, high quality 3D seismic images from symmetric sampling in practice: SEG Expanded Abstracts, ACQ1, 17-20.
van Borselen, R. G., Schonewille, M.A. and Hegge, R. F., 2005, 3D surface-related multiple elimination: Acquisition and processing solutions: The Leading Edge, 24, 03, 260-268.
Vermeer, G.J.O., 1998, 3-D symmetric sampling: Geophysics 63, 1629-16.

/content/journals/10.1071/ASEG2006ab098

Article Type: Research Article

Keyword(s): Illumination; imaging; multi-azimuth; sampling; wide-azimuth

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oa Multi-Azimuth and Wide-Azimuth lessons for better seismic imaging in complex settings

Abstract

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