鄂尔多斯盆地华池地区长6储层成岩相及其对物性的控制作用  

The diagenetic facies and its control over physical property of Chang6 reservoir in Huachi,Ordos Basin

作　　者：王永东[1,2] 张创[3] 徐岗[2] 夏海英[2] 温亮[2] 

机构地区：[1]西南石油大学资源与环境工程学院,四川成都610500 [2]延长油田股份有限公司子长采油厂,陕西延安716003 [3]西北大学地质学系,陕西西安710065

出　　处：《陕西师范大学学报（自然科学版）》2013年第4期90-95,共6页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家重点基础研究发展计划(973计划)项目(2003CB214606)

摘　　要：在储层特征分析和成岩作用研究的基础上,划分了华池地区长6储层成岩相,探讨了成岩相对储层物性的控制作用.储层主要经历了压实、压溶、碳酸盐胶结、黏土矿物胶结、硅质胶结和长石溶蚀作用;根据不同的成岩作用特征,该区长6储层可划分为绿泥石薄膜弱溶蚀成岩相、长石溶蚀成岩相、伊利石充填成岩相和碳酸盐致密胶结成岩相;由于不同成岩相具有不同成岩特征和岩石组构,因此其孔隙、喉道的类型和分布特征各不相同,由此决定了不同类型成岩相的物性存在差异,该区绿泥石薄膜弱溶蚀成岩相物性最好,长石溶蚀成岩相次之,伊利石充填成岩相和碳酸盐致密胶结成岩相物性较差.Based on reservoir characteristic analysis and diagenesis research, diagenetic facies ot Chang6 reservoir in Huachi, is classified, and its control over physical property is studied. Chang6 reservoir mainly experienced compaction, pressolution, carbonate cementation, clay mineral cementation, siliceous cementation and feldspar dissolution. According to the different diagenesis characteristics, the diagenetic facies can be classified into four types, which are chlorite rim facies, feldspar dissolution facies, illite- filling facies, and carbonate dense cementation facies. Because of the different diagenesis characteristics and petrologic make-up in four diagenesis facies, the types and distribution of pores and pore-throats are different. Furthermore, their physical properties are different, of which chlorite rim facies is best, and illite-filling facies, and carbonate dense cementation facies is worst.

关 键 词：成岩相 物性 绿泥石膜 控制作用 

分 类 号：TE122[石油与天然气工程—油气勘探]