基于岩石物理相的储集层分类评价:以北部湾盆地乌石凹陷东区始新统流沙港组三段Ⅱ油组为例*
曾小明, 张辉, 邹明生, 黄冬梅, 莫冯阳

Reservoir classification and evaluation based on petrophysical facies:A case study on the pay set Ⅱ in Member 3 of Eocene Liushagang Formation in eastern Wushi sag,Beibu Wan Basin
Zeng Xiaoming, Zhang Hui, Zou Mingsheng, Huang Dongmei, Mo Fengyang
北部湾盆地乌石凹陷东区始新统流沙港组三段Ⅱ油组成岩相类型 a—泥质杂基充填相,W5井,2329.0,m,单偏光,颗粒大小混杂堆积,杂基支撑,分选磨圆差,杂基含量高,孔隙连通性差,多为死孔隙;b—不稳定组分溶蚀相,W8井,2374.5,m,单偏光,颗粒支撑,分选磨圆较好,杂基含量少,长石和岩屑溶蚀严重,次生孔隙发育,孔隙连通性较好;c—强压实致密相,W10井,2867.0,m,单偏光,颗粒支撑,颗粒较细,泥质含量高,颗粒间以线接触为主,溶解作用弱,次生孔隙不发育,孔隙连通性较差