The technique of Kirchhoff PreStack Time Migration and its application to seismic data with complex geology in the East China Sea

Based on the brief principle of Kirchhoff PreStack Time Migration(PSTM), the process of the method is stated in this paper. It shows that compared to post stack time migration, the effect of PreStack Time Migration is superior in imaging for the seismic data in the East China Sea with complex geology and wide variety of properties both in lithology and lateral velocity.