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