- 责任者：Wang Dong (Chengdu Center of China Geological Survey ; Chengdu 610081 ; China) ; Wang Guozhi
- 刊名：Geoscience
- 出版年：2011
- 卷期：25(4)
- 关键词：碳酸盐岩储集层 ; carbonate reservoirs ; 四川 ; Sichuan Province
- 页码：p.660-667
- 图表：3 illus., 2 tables, 14 refs.
- 分类号：1003
- issnNo：ISSN1000-8527
- isbnNo：CN11-2035/P
The high-quality dolomite reservoir of Dengying Formation, Sinian, Nanjiang area, is composed of algal dolomite and grain dolomite formed at tidal flat or grain bank facies, silt-fine crystalline dolostones resulted by recrystallization. The existing porosity types are basically secondary pores related to the dissolution and recrystallization, which are inter-crystal (dissolution) pores, inter-particle dissolution pores, great dissolution pores, stylolite dissolution pores, and lots of survivals karst cavities etc. The studies based on primary and secondary controlling factors indicate that the high-quality reservoir is the final products of five evolution stages in the geological history, which is mainly controlled by the meteoric palaeo-karstification during hypergene and by the bury dissolution during deep bury.