DSO Velocity Inversion: A "Gas Cloud" Synthetic Example

Abstract

A low velocity near surface anomaly delays the seismic wavefield and focuses wavefronts passing through it. Such anomalies occur as a result of localized gas seepages ("gas clouds") in the sedimentary column, for example. Use of a migration velocity model not containing the anomaly will produce images containing false synclinal structures. Application of DSO velocity inversion to a simple example of this type images the velocity anomaly and removes the false structure.

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Document Details

Document Type
Technical Report
Publication Date
Mar 02, 1993
Accession Number
ADA455187

Entities

People

  • William W. Symes

Organizations

  • Rice University

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