Origin of Tuffaceous Clastic Rocks of Lower Wuerhe Formation in Wuerhe Oil Field
详细信息
- 责任者：Zhang Youping (Research Institute of Exploration and Development ; Xinjiang Oilfield Company ; PetroChina ; Karamay 834000 ; China) ; Gong Qingshun
- 刊名：Xinjiang Petroleum Geology
- 出版年：2010
- 卷期：31(2)
- 关键词：碎屑岩储集层 ; clastic reservoirs ; 准噶尔盆地 ; Junggar Basin
- 页码：p.205-207
- 图表：4 illus., 5 refs.
- 分类号：1003
- issnNo：ISSN1001-3873
- isbnNo：CN65-1107/TE
摘要
A set of special tuffaceous rocks compose of ash tuff, bedded tuff and tuffaceous glutenite is partly developed in the Lower Wuerhe Formation of Middle Permian in Wuerhe oil field and characterized by high resistivity and low interval transit time on the electric log curves. Based on the analysis of core, cast thin section, logging and seismic data, it is considered that the tuffaceous clastic rocks are in closed to semi-closed arm of lake environment that is saline and alkaline and shaped by ash-clastic mixed accumulation. Such a reservoir is of feature of dual porosity media.