Characterization of aquifer heterogeneity by using hydraulic tomography

The approach of two-stage modeling and its application in the study of heterogeneous reservoir of Upper Member 4 of Shahejie formation in Bonan subsag;

A new method to judge interlayer heterogeneity;

According to the variations in permeability parameters from rock cores and well log interpreting,the in-layer heterogeneity of reservoir is described in detail from the lower part of Es1 to the first part of Es3 in Gaoshangpu oilfield.

Study logging interpretation of resevior parameter,rhythm of resevior body and analysis of sedimentary facies with heterogeneity types,discusses of in-layer heterogeneity and its characters,the conclusion indicates that the in-layer heterogoeneity are trunk model,bell model,filler model,middle abruptly changing model and composite model.