胜坨油田三区东营组三段储层特征及分类评价

通过岩心观测、岩心薄片、铸体薄片、扫面电镜及压汞资料分析,对胜蛇油田三区东营组三段储层微观特征进行了分析研究.论述了储层的岩石学特征、成岩作用及孔隙结构特征.认为储层以粉砂岩为主,储层埋藏较浅地,成岩作用较弱,常见压实、胶结和溶解作用,黏土矿物的转化作用也较普遍,属于早成岩期的B亚期;储层发育粒间、粒内及微裂缝3种孔隙...

Reservoir characteristics and classification evaluation of the third member of Dongying Formation in the third block of Shengtuo Oilfield

On the basis of the data analysis of core observation,core wafer,cast thin section,SEM and mercury injection,this paper analyzes the microscopic feature of the third member of Dongying Formation in the third block of Shengtuo Oilfield,and describes the features of petrology,diagenesis and pore structure of reservoir.It is believed that the reservoir is mainly siltstone,with shallow-burial reservoir and weak diagenesis.Compaction,cementation and dissolution are common and the transform of clay mineral is gen...