The Formation and Evolution of Weathering Reservoir of Ordovician Paleocrust in Tahe Oilfield, oft-com:office:smarttags" />
详细信息
- 责任者：Jia Zhenyuan (Faculty of Earth Resources ; China University of Geosciences ; Wuhan 430074 ; China) ; Cai Zhongxian
- 刊名：Geoscience
- 出版年：2010
- 卷期：24(6)
- 关键词：风化壳 ; weathering crust ; 储集层 ; reservoirs ; 塔里木盆地 ; Tarim Basin
- 页码：p.1057-1064
- 图表：4 illus., 14 refs.
- 分类号：1003
- issnNo：ISSN1000-8527
- isbnNo：CN11-2035/P
摘要
The weathering reservoir of Ordovician paleocrust in Tahe oilfield undergoes weathering and denudation as long as 118 Ma from Middle Caledonia to Hercynian period. Cores observations and well logs explanations show that cave development in vertical is closely related to multistage tectonic movements of Northern Tianshan. The chaotic network of cave system were formed from multiphase superpositions of various dissolution such as direct runoff, vadose dissolution, underflow, mixed-water dissolution of coastal zone during 8 times uplift movements in the Mid-Late Caledonia and Early Hercynian movements.