Seismic depthing by travel-time inversion in areas with low structural dip

The use of seismic data to estimate geological depths and seismic interval velocities is of fundamental importance in oil exploration. Several different methods are widely used for deriving depth and interval velocities from seismic data. The choice of method depends on the geological environment, the available information and data quality. This paper describes a method that is very effective for low-dip environments where low-relief structure may be masked by lateral variations in interval velocities.