The research of the prestack seismic identification of the reservoirs in Es_2 of Wuhaozhuang sag

The reservoirs in Es2 of Wuhaozhuang sag are in- cluded in T2 strong reflection on the final seismic result sec- tions, the reservoirs can not be described by conventional reservoir description methods as they showed poor reflections affected by T2 strong reflection. It is theoretically con- firmed that the reservoirs in Es2 can be indentified by the changes of partial angle stack section based on the analysis of seismic rock physics and different lithologic association inter- facial AVO curve calculation. The reservoirs in Es2 were iden- tified by partial angle stack sections of the real seismic gather- ing through the processing of the partial angle stack of the high precision 3D seismic data acquired from Wuhaozhuang.