The Analysis Of Remaining Oil Potential Of Chang2Reservoir In Panlong Oilfield Xiaping Area, The Ordos Basin

This paper analysis the structural feature, sedimentary fades, sand body distirbution,reservoir microscopic characteristics, reservoir heterogeneity,reservoir characteirstics of chang2reservoir in Panlong Oilifeld Xiaping area in the Ordos Basin.Based on the comprehensivegeological study,the three-dimensional structure modeling,sedimentary faacies modeling andreservoir parameter modeling, sedimentary facies modeling and reservoir parameter modelingwere carired out. Through the numerical simulation, calculated the reserves, the fluid volume,the pressure and oil porduction，In the analysis of multiple factors such as the geologicalfactors, the development factors and the engineeirng factors of the study area, we learned thatthe remaining oil distirbution in Chang2reservoir is as same as its oirginal. The remaining oilis still accumulated in the position of point bars and channel bars of the irvers. The researchesshow that the inverted nine-spot pattern is conducive to the EOR and the reasonable distancebetween oil wells and injection is150-200m. This study has significance for improving theproducing degree and stabilizing the productivity.