Subsalt Migration
Velocity
Analysis
with the Common Image Cube Approach
K. Mansoor1, O. Hermant1, H. Baudon1, S. Warzocha1, and M. Van De Rijzen2
Abstract
Accurate subsalt imaging requires both high fidelity imaging algorithms and accurate velocity
models. One-way and two-way wave equation
migration
methods have evolved at a faster pace than the
migration
velocity
analysis
(MVA) methods used to build and update the
velocity
models. Ray-based tomography is still the basis of most commonly-used MVA methods. This updating method can be both incompatible with wave equation imaging algorithms and inaccurate in a complex
velocity
environment.
AAPG Search and Discovery Article #90188 ©GEO-2014, 11th Middle East Geosciences Conference and Exhibition, 10-12 March 2014, Manama, Bahrain