3-D imaging beneath water-bottom channels in the Gippsland Basin: A case study

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:542958

Young, K T; Houston, B G; Clark, Jr, R E; Moore, J F

Water-bottom channel, in the Gippsland Basin cause nonhyperbolic moveout and time delays resulting in disrupted and distorted structural images on time sections. In 3-D processing, prestack depth migration is the ultimate processing technique for resolving nonhyperbolic moveout and producing correct depth images. The high cost and slow turnaround time associated with 3-D prestack depth migration, however, limits its application. An alternative 3-D processing approach consists of prestack 3-D replacement dynamics, stacking, poststack inverse 3-D replacement dynamics, and 3-D poststack depth migration. Application of 3-D replacement dynamics reduces nonhyperbolic moveout due to variable water depth and improves the quality of stacked traces. Poststack depth migration using a compaction-based 3-D velocity model eliminates structural distortion on depth sections.

• OSTI ID: 542958
• Report Number(s): CONF-951013--
• Country of Publication: United States
• Language: English

Related Subjects

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