Well seismic is used for a better knowledge of the reservoir in the exploration phase; and also in the exploitation phase by seismic monitoring to study the reservoir development through its entire lifecycle. ENAGEO offers to its clients the application design, acquisition and processing data with high quality, which will help to improve the vertical and lateral resolution, compared to the surface seismic data during the interpretation phase. The Check shots and vertical seismic profile (VSP) are often considered in the logging program of each exploration and development to minimize the surface seismic time to depth conversion error.