A Case Study of Pre-stack Depth Migration Application over a Salt Dome Area

There is a variety of salt domes with complex shapes in our work area. As high-velocity geologic units, subsurface salt<br>domes bring about a series of problems for seismic data processing in time domain and interpretation in the seismic<br>exploration. For example, false images of subsalt structure, abnormal stack velocity field, and difficult time-depth conversion<br>of structural mapping, are all caused by complex wave-fields from irregular salt domes.