Reef-Shoal Depositional Model and Reservoir Qualities of Middle Ordovician Yijianfang Formation in Bachu, Tarim Basin
详细信息
- 责任者：Wang Rui (College of Geosciences in China University of Petroleum ; Beijing 102249 ; China) ; Jiao Yangquan
- 刊名：Journal of China University of Petroleum
- 出版年：2012
- 卷期：36(1)
- 关键词：礁 ; reefs ; 储集层 ; reservoirs ; 塔里木盆地 ; Tarim Basin
- 页码：p.47-52,59
- 图表：7 illus., 14 refs.
- 分类号：1003
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
Fine outcrop description as well as laboratory analysis were carried out to reveal the depositional model and the features of reservoir quality distribution of platform margin reef-shoal depositional system of the Middle Ordovician Yijiangfang Formation in Bachu Yijiangfang outcrop.The results show that Yijianfang Formation is divided into five three-order sequences from bottom to top,each of which is comprised of TST and HST.The reef-shoal depositional system mainly develops at the carbonate platform margins of sequence 1 to sequence 3. In the reef-shoal depositional system,the reef-front interior arenaceous beaches and reef-back interior arenaceous beaches are usually potentially high-quality reservoirs.