| In this paper,both at home and abroad reservoir description study theory,on the basis of the results of previous studies,based on reservoir characteristics,log interpretation,reservoir physical properties.Combination with sedimentary petrology,petroleum geology,reservoir development geology sedimentary petrology,and reservoir engineering disciplines,a comprehensive analysis,together with the remaining oil distribution of a variety of advanced analytical testing methods.The study area has been using natural energy development since it was put into development,now the study area has entered the stage of high water cut.With the commissioning continuous production wells to go into production,reservoir development in the gradual exposure of a reservoir has been the formation of elastic energy development,formation pressure decreased rapidly.Well production is higher when development in early of day,as the development gradually,the production had decreased rapidly,and the moisture content continuously improve the reservoir at the stage the moisture content is generally more than 97%.The study area belongs to river sediments,the sand body contain many small layers,in the horizontal direction,the sand body changes quickly,reservoir fluid relationship is complex,and there are multiple oil-water interfaces.Relative to the other reservoirs,the study area's basic geological research is less.Therefore,the author study these issues in this paper.Through the reservoir geological features and reservoir parameters characteristics.By reservoir stratigraphic division and correlation,reservoir structural characteristics,sedimentary facies and sand body distribution of reservoir sexual relations,to create the establishment of three-dimensional geological model,furthermore in the numerical reservoir simulation,history matching and Remaining Oil Distribution.By the way of the remaining oil distribution features,obtain results of favorable region of the remaining oil development. |
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