Migration Velocity Analysis Aided by RTM

RTM is the most advanced imaging technology and it is starting to be routinely applied to production projects. Nonetheless, in order to fully exploit its potentiality RTM should be also integrated in the velociy model building loop. The first step along this direction is the application to salt interpretation, especially in case of very complex 3D geometries. In this paper we show a succesfull case history where RTM aided salt interpretation yielding a more accurate salt model and accordingly an improved imaging. We discuss also why RTM gave a unique added value that couldn't be achieved by conventional (and approximated) PSDM algorithms.