Genesis of Freshwater Limestone of Paleogene Nadu Formation in Nakun Area, Baise Basin
详细信息
- 责任者：Xiao Ling (School of Petroleum Resource ; Xi’an Petroleum University ; Xi’an 710065 ; China) ; Zheng Rongcai
- 刊名：Geology in China
- 出版年：2012
- 卷期：39(4)
- 关键词：碳酸盐岩储集层 ; carbonate reservoirs ; 百色盆地 ; Baise Basin
- 页码：p.965-971
- 图表：3 illus., 1 table, 3 refs.
- 分类号：1003
- issnNo：ISSN1000-3657
- isbnNo：CN11-1167/P
摘要
On the basis of core observation, the authors studied the features and genesis of freshwater limestone by acoustic emission technology, stable isotopic analysis, fluid inclusion homogenization temperature of filled components in fractures. The results show that the main fractures of the freshwater limestone reservoir are of three types： vertical fissures, high-angle fissures, and oblique fissures. The tectoclase and non-tectoclase constitute two main fissure types. The development and evolution of fractures have been affected considerably by three different tectonic stress fields. The tectoclase has exerted important contribution to improving porosity and permeability of the reservoir.