The Study Of Reasonable Well Pattern Optimization Of ZhangGuanmiao Oil Field

As to low permeability oil field, because of its complex pore structure、poor reservoir property and great filtration resistance, these often lead to low well prouductivity and short plateau, it is vital to supplement the formation energy through the water injection. So the determination of reasonable injection-production pattern to improve the low permeability reservoir development level has very important significance.ZhangGuanmiao area is the study area of this article. Author identified the best well pattern,well spacing and injection-withdrawal ratio using both methods of reservoir engineering and numerical simulation. Following are the major work:1) Literature data, research the well pattern of low permeability reservoir waterflooding, analysis the advantages and disadvantages of them;2) Analyzing its lithology, physical property and heterogeneity of ZhangGuanmiao area;3) Identifying the best well pattern、well spacing and injection-withdrawal ratio employing the method of reservoir engineering;4) Establishing3D geological model of lithology, porosity, permeability and water saturation for layer Chang4+5and Chang6using the software Petrel;5) Using numerical simulation software Eclipse to simulate the different well pattern、well spacing and injection-withdrawal ratio of ZhangGuanmiao area, according to the results of numerical simulation, analysis and compare the development effect of each schemes, then establish the best development program.