Facies constrained geological seismic model building method under dense well pattern

Abstract

Taken the B1-5-52 well block typical continental formation Saertu and Putaohua reservoir geological modeling as an example, this paper presents the facies constrained geological seismic model building method under multiple well conditions. Driven by the seismic data horizon and fault interpretation, based on the known geological data and include depositional micro-facies, first we constructed stratigraphic framework model; then built sublayer model and filled the face properties according to target reservoir geological characteristic; eventually establish a three-dimensional, quantitative geological model. According to Changyuan oilfield thin sand-shale interbedded reservoir characteristics and 3D seismic modeling requirements, through reservoir seismic wave impedance parameters extraction, geological seismic properties filling and upper and lower reservoir medium geological seismic features description, established 3D geological seismic model in line with the actual geologic data, lay the foundation for Changyuan oilfield reservoir seismic wave-field propagation research.