The Research Of Yi Xigou Reservoir Chang2Remaining Oil Distribution And Tapping Potential Measures

On the strategy of the exploration，most of0i1field in china use the methods of waterflood. At Present，most of0i1field in china using water flood development at high water-cutPeriod. Oil recovery at high water-cut Period encountered many trouble such as waterProduction rising greatly，0i1Production declining Production cost rising，drill or readjust welland development effect deteriorated. Exploitation become difficult at the late stage of0i1fielddevelopment.The Pressure and Production decline，water cut and degree of reserve recovery is high，and effect of development change into bad at extra high-water cut Period.In order to analyzethe remaining0i1distribution and Pull out stimulation of further exploitation.Throughcomprehensive analysis of the geology to establish a precise geological model and numericalsimulation in the Chang2reservoir for accurate research. Summarized from the open, themain content of the study are as follows:1) conducting a new study on geological features of reservoir according to structure，precipitation facies, sand body, reservoir characteristics.2) Through analysis and research on the porosity and permeability saturation and otherparameters, reservoir flow units divided3) building three-dimensional geological modeling on the basis of geological.4) Reserves of research head of reservoir geology and history of development andproduction of the fitting, and analysis by fitting the results to come to the law of distribution ofresidual oil.5) And gives reasonable measures of tapping the potential on the basis of geological andnumerical simulation analysisIn a word, the Chang2remaining oil in the study is more reasonable, at the same time,derived on the basis of tapping the potential measures to adapt to the actual situation in theregion to play a certain effect, the yield of the oil field.