Velocity Analysis of Multicomponent Seismic Data of a Model with Thin Salt Layer.

The reservoirs of the pre-salt from Santos Basin have been a challenge to the offshore multicomponent seismic processing since they were discovered. However the challenge can become even greater when the reservoir presents a peculiarity as a thin salt layer what generate an even more complex reflection event. To perform the velocity analysis, we must use approximations that can control strong nonhyperbolicities, and treat the problem as an inversion due to the fact of the complex approximations have three parameters. Finishing the tests we can found which approximation presents the best results for this kind of model.