System and method for speed anomaly analysis

摘要

The method of analyzing the velocity model includes defining a velocity anomaly model for the subsurface area under investigation. The velocity anomaly model is superimposed on the seismological stack image to generate a hybrid velocity / amplitude model. The region where the stack amplitude coincides with the velocity abnormality can be interpreted as representing the target structure. In one embodiment, clathrate deposits are identified using a hybrid model. In one embodiment, the geobody is identified and velocity anomalies are limited by the geobody.