胡尖山油田延10储层特征研究

The study of Reservoir characteristics about Yan 10 in HJS oil field

研究区延安组储层岩性为中粒的灰白色长石石英砂岩、岩屑石英砂岩,岩屑成份以变质岩为主,主要粒径0. 25mm^0.8mm,分选中等-好,颗粒呈次棱-次圆状,胶结类型为加大~孔隙型、孔隙型和孔隙~加大型以加大~孔隙型胶结为主。填隙物主要为以高岭石为主;胶结类型以孔隙式为主,属中孔隙度、中渗透率储层,储层物性较好。总体来说延10有很好的物性,均属于低孔-低渗储层,对该课题的研究对之后的产能建设和区块开发有很重要的意义。

Yanan group in the study area reservoir lithology for medium grained hoar feldspar quartz sandstone and lithic quartz sandstone, lithic component is given priority to with metamorphic rock, major diameter 0.25 mm^0.8 mm, good separation of medium-, particles show time arrises-cone, cementation types for more^pore type, pore type and pore^plus large is given priority to with more^pore type cementation. Filler content mainly is given priority to with kaolinite;Cementation type is given priority to with pore type, belong to the porosity and permeability in the reservoir, has good reservoir property,pore types mainly intergranular pore and dissolution, all belong to the hole-after conventional reservoir for the construction of a productivity and block development has very important significance.