Study On Reservoir Character And Remaining Oil Distribution Of Es₂ Upper 2+3 Reservoir In The South Area Of Pucheng Oilfield

Based on the full understanding of the study area geological background and the current development status, using the static and dynamic analysis method, we study the reservoir and renmaining oil distribution of Es2 upper 2+3 reservoir in the south area of Pucheng oilfield. According to the core's observation and the description, coalescent a great deal of log and the logging information, we proposed that the research area is the terminal fan deposition system whose source comes from LuXi uplift. According to the secondary digital process of more than 200 oil and water wells' log data, we obtain various reservoir parameter . By researching the heterogeneity of inner layer, interlayer and horizons , we conclude that the heterogeneity of inner layer is serious ; the heterogeneity of interlayer which is serious in 2 sand group , is level in 3 sand group , is serious in the total ; the heterogeneity of horizons is a little serious . The average restraining barrier is thicker than the interbed's in plane ; The restraining barrier is more steady than the interbed in vertical . The study area is ploted into 4 flow units as P , F, G and . E flow unit , the memory and percolation turns better .The channel line map and watered-out map is drawn based on the dynamic synthesis of the oil and water wells and groups .All the oil layer is watered except several area . Based on the general value of reservoir , using the numerical simulation , we conclude the distribution rule of the oil saturation and the remaining oil reserves abundance, and propose the comprehensive adjustments.