Application of 2D CRS-OIS to 2D real data acquired in deep water of South China Sea

A detail analysis on common-reflection-surface (CRS) stack method is performed based on a unified Kirchhoff imaging theory from which an output imaging scheme (CRS-OIS) is derived. The CRS-OIS greatly simplify the implementation of traditional CRS stack from which both an enhanced prestack dataset and enhanced ZO image can be achieved. Thus, it can be seen as a significant improvement on CRS stack method. In this paper, the CRS-OIS is applied to the real data acquired in South China Sea for the first time. The general improved image quality and improved interpretability of target events such as the base of Paleozoic and Moho in the ZO image fully demonstrate its effectiveness.