Free Standard AU & NZ Shipping For All Book Orders Over $80!
Register      Login
Exploration Geophysics Exploration Geophysics Society
Journal of the Australian Society of Exploration Geophysicists
RESEARCH ARTICLE

3-D pre-stack depth migration: implementation and case history

J. Cabrera, W. Perkins, W. Lynn, D. Ratcliffe and W. French

Exploration Geophysics 23(2) 43 - 46
Published: 1992

Abstract

3-D pre-stack depth migration is a viable imaging process when implemented on parallel super-computers. Run times for complete output volumes that would have been years on conventional computers are now on the order of weeks. An iteration on the important velocity model, however, can be done with a small subset of the output volume and hence can be accomplished in a few days. Sub-salt imaging is a particularly difficult imaging problem that requires 3-D pre-stack depth migration. A 3-D sub-salt case history from the Gulf of Mexico illustrates the benefits of and effort behind 3-D pre-stack depth migration and migration-velocity analysis, and underscores the perils of 2-D pre-stack depth migration in imaging complex structure.

https://doi.org/10.1071/EG992043

© ASEG 1992

Export Citation