Improved Imaging in the Santos Basin with Full Waveform Inversion

We illustrate an example of FWI successfully applied on a regional dataset from the Santos Basin. FWI is run in a tomographic mode. The velocity field obtained after FWI updates the post-salt sediments zone. It allow us to detect the post-salt high velocity Albian unit and to better image sub-salt and intra-salt features with RTM. This case study allow us to establish a FWI workflow for real data, applicable even on dataset without the optimum parameters usually required for FWI.