新疆油田530井区八5^2层储层研究

Reservoir research of J1b5 2 formation of the 530 well area in Xinjiang Oilfield

利用岩石薄片、铸体薄片及压汞分析等多项资料对储集层进行了分析研究,研究表明J1b52层主要岩石类型有灰色砾岩、砂砾岩、含砂质砾岩等,各类岩石均为颗粒支撑,胶结致密,压嵌胶结为主,岩石中砾石颗粒主要为凝灰岩、花岗岩及安山岩岩块等岩浆岩碎屑,也有少量变质岩碎屑。储层以次生孔隙发育为主,孔隙发育程度及连通性均较差,孔隙结构不好,以低孔低渗的差储集层为主。

The reservoir characteristics were researched by rock slices, casting sheets , and analysis of mercury injection experiments. The results indicated that main rock types of Jib5^2 are grey conglomerate,glutenite, sandy conglomerate with structures of grain supported, compacted cementing, and press inlay. Conglomerate grains in these rocks are mainly magmat- ic rock classes , such as volcanic tuff, granite, and andesite. And there are a few of metamorphic rock debris. The reservoir is mainly secondary pore system with lower porosity and permeability, and the pore connectivity and the pore fabric of the reservoir are bad.