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通过岩心铸体薄片、扫描电镜、物性分析、压汞分析等手段,分别从储层岩石学特征、储层物性特征、储层渗流特征等各个方面对东仁沟地区长21油层组的储层特征进行了深入的研究。结果表明该区长21储层岩石类型主要以长石砂岩为主、填隙物以粘土矿物高岭石为主、储层物性较好,属于中孔-中渗储层。
By means of core cast thin films, scanning electron microscopy, physical property analysis and mercury intrusion analysis, the reservoirs of Chang 21 reservoir in Dongrengou area are studied from the aspects of reservoir petrology, reservoir physical property and reservoir seepage characteristics. Characteristics of the in-depth study. The results show that the main rocks of Chang 21 reservoir are mainly feldspar sandstone. The interstitial material is mainly clay mineral kaolinite, and the reservoir properties are good, which belongs to the medium-porosity-medium permeability reservoir.