With the rapid development of computer, the integration research of geological modeling and numerical simulation is more and more emphasized in oilfield. In this paper, the flow mathematical model is established, which considers starting up pressure gradient for low permeability reservoir. Based on the research of the geology characteristics, fine stratigraphic correlation and sedimentary facies, the 3D geological model is established through integrated research considering geology and reservoir, including facies model, oil saturation model, porosity model, permeability model and NTG model. Then the remaining oil distribution was calculated through fine reservoir simulation. Based on history match, the distribution of remaining oil is analysed through the research of deposition facies and flow layer, which can be used for reference on oilfield development potential adjustment and scheme design.
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