Abstract

Getting a geologically realistic seismic image still remains a great challenge in foothills exploration. When geological structures are complex, seismic sections show distorted images and become difficult to be interpreted. Seismic processing tools, like time and depth migrations, have been developed to deal with this. Furthermore, when lateral velocity variations are strong, depth migration is definitely required. However, for a correct application of this processing, the construction of a detailed depth model describing lateral and vertical velocity variations is essential.

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