Reservoir Modeling And Remaining Oil Research Of Zhung39 Block In Wuhaozhuang Oilfield

In order to study remaining oil distribution rule, perfect injection production well net and enhance oil recovery ratio, this paper take the Third Member of Shahejie Formation of Zhung39 Block in Wuhaozhuang Oilfield in Zhanhua Sag as research object. First, systematic research is made on reservoir structure, oil saturation and reservoir character of braid deltas and fan-deltas reservoir in this reservoir. On base of this research, the high precise 3D geological model is built, geologic reserves is calculated and through the reservoir numerical simulation, the static data of geology and the dynamic information of oil-development are integrated to build the remaining oil distribution model in Zhung39 Block in Wuhaozhuang Oilfield. Through the research, some rules have been discovered. The 3D geological model shows impersonally the characteristic of reservoir heterogeneity. The best in this reservoir is river mouth bar sandbody. Laterally ,the center of sand has higher porosity, permeability and oil saturation. In vertical, the physical property of upper sandbody is best. The residual oil distribution of delta reservoir in Zhung39 Block is controlled by inner heterogeneity, micro-facies, injection and production well net and well density . The main factor is that injection and production well net is not perfect and pressure is not sufficient. Zhuang394 is mainly influenced by inner heterogeneity, Zhuang397 is mainly influenced by plane altering facies. The best exploiting goal of the Third Member of Shahejie Formation of Zhung39 Block is Zhuang394 fault block and Zhuang397 fault block of IV-1 layer...