以合水地区三叠系延长组长8储层为研究对象,对影响开发效率的储层孔隙度,渗透率和敏感性等展开研究分析。以前人所做的一些分析测试为基础进行了区域情况考察,薄片鉴定,敏感性测试等工作。分析认为长82层段的储层物性相对长81层段略好;区内的胶结物和粘土矿物是造成合水地区渗透率低的主要原因;研究区的敏感性较弱,不会对生产工作带来太大的影响。 Taking reservoir 8 of Yanchang Formation of Triassic in Heshui area as the research object, the reservoir porosity, permeability and sensitivity that affect the development efficiency are studied and analyzed. Based on some previous analysis and testing conducted by our predecessors, we conducted regional inspection, identification of thin sections and sensitivity testing. The analysis shows that reservoirs in the upper 82 intervals are slightly longer than the upper reservoir in 81 intervals. Cements and clay minerals in the area are the major causes of low permeability in the Hethui area. The sensitivity of the study area is weak, Work to bring too much influence.