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The Leading Edge; September 2003; v. 22; no. 9; p. 830-831
© 2003 Society of Exploration Geophysicists
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A workshop on enhanced seismic imaging

Harold Yarger

ChevronTexaco, Houston, Texas, U.S.

Guy Flanagan

ConocoPhillips, Houston, Texas, U.S.

Pat Millegan

Marathon, Houston, Texas, U.S.

Corresponding author: hyarger@chevrontexaco.com

The first 20% of the full text of this article appears below.

One of the hottest topics in seismic depth imaging these days is gravity modeling. What? That's right, most major oil companies and many smaller ones routinely integrate rigorous gravity models with their seismic depth migration workflow. If you think about it, it makes sense. Gravity data have always been effective at predicting the distribution of mass in the subsurface. Although once thought limited in resolution, gravity has gained new respect in the last five years due to careful modeling and thoughtful integration into the workflow of seismic depth migration.

The days of the nonuniqueness excuse, conveniently used to exclude gravity from routine analysis of a prospect, are gone. Case histories have shown that the integration of a gravity model will help, at the very least, in more confidently picking a base of salt prior to a final sediment flood in prestack or poststack depth migration.

These paragraphs are a preamble to our major point: The SEG Gravity and Magnetics Committee is convening a seismic depth-imaging workshop at SEG's upcoming Annual Meeting in Dallas! What? That's right. To be more specific, it's on Thursday afternoon, 30 October, . . . [Full Text of this Article]






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