ABSTRACT: Use of Gravity Data to Enhance Seismic Depth
Migration
WEBER, MARK E., BRIAN S. ANDERSON, and BARRY C. WIGGINS , Fugro-LCT, Inc., Houston, TX
Seismic depth migration
continues to be an important, but expensive,
tool for reducing exploration risks. Newly acquired high-resolution gravity data provides
a low cost method to enhance the seismic depth
migration
process by providing an
independently measured constraint to the seismic
velocity
model. State-of-the-art
commercial software tools enable rapid integration of the gravity and seismic data. In
many geologic settings integrated density/
velocity
modeling yields a more accurate
velocity
model than can be derived from seismic data alone. A
case
study is presented to
illustrate both the steps employed in the data integration process and the resulting
improvement in depth migrated seismic data.
AAPG Search and Discovery Article #90908©2000 GCAGS, Houston, Texas