摘要
依据大量岩心资料,通过物性分析、铸体薄片和扫描电镜观察等对下寺湾油田柳洛峪区块长8储层特征及主控因素进行了研究。结果表明,储层岩性以灰色长石砂岩为主,结构及成分成熟度均较低;填隙物以胶结物为主,胶结物以(铁)方解石、绿泥石、伊利石为主;孔隙类型以长石溶孔和溶蚀粒间孔为主;孔喉大小分布不均,分选性较差,总体吼道半径较小;水下分流河道及绿泥石环边胶结-长石溶蚀相对优质储层发育起着重要控制作用。
On the basis of a large number of core data,physical property analysis,casting thin sections and scanning electron microscopy(SEM),mercury injection and other methods,a detailed study is carried out in Chang 8Reservoir of Xiasiwan Oilfield,which includes petrologic characteristics and pore structure characteristics and physical property characteristics.Research shows that lithology of Chang 8reservoir in Xiasiwan Oilfield gives priority to grey arkose,structure and component maturity is low.Filling content is mainly of cement,it is mostly(iron)calcite,chlorite and illite.Pore types are mainly feldspar intergranular dissolved pore.Pore size distribution is wide,sorting characteristics are poorer,pore throat radius is smaller.Underwater distributary channel and chlorite cementation of rim-feldspar dissolution controlling the high quality reservoir development play an important role.
出处
《长江大学学报（自科版）（中旬）》
CAS
2014年第1期58-61,7,共4页
Journal of Yangtze University(Nature Science Edition)
基金
国家自然科学基金项目(41172101)
关键词
下寺湾油田
长8储层
储层特征
主控因素
Xiasiwan Oilfield
Chang 8reservoir
reservoir characteristics
