The Analysis Of Injector-producer Field Volume Division Of The Dawa Oilfield And Potentiality For The Multi-layer Reservoir

To the multi-layer sandstone reservoir in the wateflooding stage, the layers monitoringdata of the injection and production wells is few, it is difficulty for dynamical analysis. Firstlyresearched domestic and foreign documents widely，summarized the methods used in the fluidvolume division, and based on the balanced injection and production rate in a well group,thepaper establish a dynamical divisible equation to the layering production of injection andproduction wells, considering the elements such as oil layer and exploitation conditionscomprehensively. According the equation, we can ascertain per-layer fluid volume of theinjector and producer.And classify the several elements affecting the dividing coefficient,discuss how toascertain these elements and the influence quantity of which. According to the main factorsordered by gray correlative analyzing method, estalish the vertical fraction coefficient, whichget rid of the shortage of conventional methods, then divide the fluid volume of theinjection/production well scientifically.Based on the study of the multi-layer sandstone reservoir filtration feature and the theoryabout liquid division of injection/production well, this thesis provides correspondingreasonable suggestions for the development of DAWA oil field, with the integration of theoryand practice, static and dynamic state, reservoir engineering analysis and block sublayerevaluation.