Fine Modeling Research Of Reservoir And Water Flooded Layer Parameters For Esh Period Of Tertiary In Yanmuxi Field

Yanmuxi oilfield have been development for more than 10 years,and variations of of reservoir physical properties,parameters and log response characteristics are obvious and complex changes.It reflects the reservoir properties and oil parameters large difference,complex relationship between porosity and permeability,porosity and permeability and oil saturation in varying degrees of change.In this paper,the tertiary Esh period reservoir and water flooded layer as an example,combining a variety of logging information collected,core,logging,testing,production test information and laboratory data,analyze four-property relations and logging response characteristics of water flooded layer,evaluate petrophysical facies of reservoir,water flooded layer by category,and respectively to establish porosity parameter model,permeability parameter model and oil saturation parameter model of reservoirs and flooded layer.The model makes such curve fitting data points of classification model having a relatively concentrated distribution trends and good linear relation.Porosity uses classification acoustic transit time,density,compensated neutron porosity parameters for curve fitting;Porosity uses classification core analysis porosity,acoustic transit time,density,compensated neutron porosity parameters and gamma ray for comprehensive evaluation;Oil saturation uses statistical analysis of sample salinity and temperature correction to make the mixture formation resistivity evaluation.Finally,This method instance perforations were verified,And it converts the anisotropy,non-linear phase into relatively homogeneous linear problem and solves some problem.It improves and enhances the accuracy of log interpretation and practical effect for the water flooded layer.