Research On Fuyu Oil Reservoir Characteristics In Xingbei Area And Field Test

Fuyu reservoir in northern apricot widely distributed,according to the probe-owned wells,appraisal wells deeper information on apricot northern regions have a preliminary understanding of Fuyu oil layer,Fuyu oil-bearing area to estimate the region 77.09km2,geological reserves of 2237 × 104t.Fuyu reservoir oil test data results showed Xingbei Fuyu reservoir area has a production capacity.In this paper,the characteristics of the reservoir area carried out Xingbei explain Standards Fuyu reservoir parameters,fine interpretation of reservoir parameters,laying the foundation for potential Fuyu reservoir prediction and evaluation.Through research "four sexual relations" Fuyu oil reservoir in northern apricot establish water layer interpretation standards,development of effective thickness properties,electrical standards,the establishment of porosity,permeability and saturation interpretation model and evaluate the accuracy of apricot Fuyu reservoir in northern the macroscopic evaluation of reservoir development status.Through in-depth study of the relationship between Fuyu reservoir lithology,physical properties,oil resistance and electrical properties,summed up the characteristics of the reservoir four sexual relationship:the more coarse rock,the greater the porosity,the greater permeability reservoir layer,the density is smaller,the greater the acoustic time;higher oil saturation of the reservoir,the greater the resistance.Oil-producing state in coring,core analysis,based on testing data,using the method of testing oil and oil-producing state law effectively integrated Fuyu oil layer thickness determines the physical properties of the lower standards:standards for the immersion oil of the lower air permeability of the lower standards 0.4 × 10-3?m2,effective porosity is 10%lower limit of the standard.Log response by optimal combination of reservoir built Fuyu oil layer thickness effective electrical standard plates,plates accuracy of 94.5%;and the accuracy of the comparison,the number of layers was 94.7%quasi-zoned;relative error of 11.1%,the balance error +3.7%,both to meet the project contract and specification requirements of oil and gas reserves.Core utilization,testing and logging data,the establishment of a regional block Xingbei Fuyu reservoir effective porosity interpretation model,the average relative error is 6.6%,8%to meet the specifications required reserves.Xingbei established Fuyu reservoir permeability model regions,the average relative error was 63.1%.Determine the electrical parameters of the reservoir rock by rock electric experimental analysis to Archie was established based on initial oil saturation interpretation model,the average relative error is 6.4%,accuracy of reserves specifications.