f Joint 3D Inversion of Direct and Reflected Arrivals from Surface and SWD Seismic Data

Vertical Seismic Profiles (VSP) provide an effective tie between well information (as logs and core analysis) and surface seismics, by linking the local geology to the Earth reflectivity. Seismic tomography gets similar benefits from the joint inversion of direct and reflected arrivals, recorded both at the surface and in a well.