Origin and Distribution of Hydrocarbon in Donghetang Oilfield, West Tabei Uplift, Tarim Basin
详细信息
- 责任者：Zhang Bin (China University of Geosciences ; Beijing 100083 ; China) ; Zhu Guangyou
- 刊名：Earth Science Frontiers
- 出版年：2012
- 卷期：19(4)
- 关键词：油气藏形成 ; reservoir formation ; 塔北隆起 ; Tabei Uplift
- 页码：p.276-283
- 图表：5 illus., 27 refs.
- 分类号：1003
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
///Donghetang Oilfield was located in the west of Tabei Uplift,Tarim Basin, and a series of oil and gas accumulations have been discovered around it. Hydrocarbons produced in the Donghe sandstone of Devonian (D3d) and Jurassic reservoirs were mainly derived from Mid-upper Ordovician source rocks. According to hydrocarbon charging history,the reservoirs were formed both in the late Hercynian and late Himalayan, but the early-accumulated oil and gas were generally biodegraded and destroyed in most places, and the normal hydrocarbons in present reservoirs were formed in the later stage. Based on geochemical characteristics and lateral and vertical comparison, the Ordovician and Silurian reservoirs lain underneath the Donghe sandstone could be the potential exploration formations.