Petrologic feature,pore type and structure,physical properties and other influential factors of He-8 reservoir in X area, Sulige gas field are studied thoroughly and systematically by use of core and logging data,core and casting thin sections,scanning electron microscopy a well as mercury measurement methods. The results shows that H-8 reservoir features low permeability and porocity,the main lithology of the reservoir belongs to lithic sandstone,with low composition and textural maturity;the pore types of the reservoir consist of particles dissolved hole and intergranular dissolved pore;the rock type,diagenesis and sedimentary microfacies have significant impact on the reservoir. The research on this reservoir provides a geological basis for further exploration and development.%综合利用岩心资料、岩心薄片、铸体薄片、扫描电镜、压汞测定等方法,对苏里格气田X井区盒8段储层岩石学特征、孔隙类型、孔隙结构、物性特征以及储层影响因素进行了深入系统的研究.结果表明:苏里格气田X井区盒8段储层属低孔低渗储层;储层岩性以岩屑砂岩为主,成分成熟度和结构成熟度较低;研究区储层孔隙类型主要有颗粒溶孔和粒间溶孔;岩石类型、成岩作用以及沉积微相均对储层有着重大影响作用.通过对该区储层特征的研究,可为下一步勘探开发提供地质依据.
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