The carbonate reservoir space of Jia2 member in Moxi area of central Sichuan is dominated by pore type reservoir.The pore throat configuration of the reservoir is complicated,and the reservoir heterogeneity is strong.Considering the heterogeneity of the reservoir.Based on the difference of pore structure in the second member of Jia formation,the lower physical property limits of carbonate reservoirs in the second member of Jia formation in the study area are determined in two parts(Jia2 1 and 2A small formations,Jia2 2B and 2C small formations).The lower physical property limits of carbonate reservoirs in the second member of Jia formation in the study area are determined by previous studies on sedimentation and reservoirs,as well as existing core analysis and dynamic production data.Combining with the physical property lower limit of the results of the study to explore the effect such as sedimentation and diagenesis on reservoir control,the effectiveness of the reservoirs are mainly in the study area are controlled by sedimentary microfacies and diagenesis,sedimentary strictly controlled the reservoir distribution,diagenesis affects the degree of reserve of primary pore and secondary pore development degree.
关键词
磨溪地区/碳酸盐岩储层/物性下限值确定/控制因素/嘉二段
Key words
Moxi area/Carbonate reservoir/The lower limit of physical properties is determined/Control factors/Jia2 member
维普
万方数据