oa AVO Walkaway Processing - a Case Study from the North Sea

AVO analysis of surface seismic data has become a widely used technique in recent years. lts success is dependent on the quality of log data available for modelling the AVO at the weIl positions and the availability of AVO Walkaway (VSP) data surrounding the well. The AVO response observed on the CMP gathers often does not match the weIl response, and this mismatch may have several reasons (Amstrong, et. al., 1995).