Dynamic Analysis on Hydrocarbon Migration of Accumulation Periods in Low Permeability-Tight Sandstone Reservoir
详细信息
- 责任者：Zhang Fengqi (School of Earth Sciences and Engineering ; Xi’an Shiyou University ; Xi’an 710065 ; China) ; Wang Zhenliang
- 刊名：Journal of China University of Petroleum
- 出版年：2012
- 卷期：36(4)
- 关键词：低渗透储集层 ; low permeability reservoirs ; 油气运移 ; oil and gas migration ; 库车坳陷 ; Kuqa Depression ; 鄂尔多斯盆地 ; Ordos Basin
- 页码：p.32-38
- 图表：illus., 23 refs.
- 分类号：1003
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
By restoring the overpressure of main accumulation period in the deep of Kelasu structural belt of Kuqa Depression and Yanchang Formation of Yishan slope of Ordos Basin, the possible dynamic conditions during the process of hydrocarbon migration in the low permeability-tight sandstone reservoir were estimated combined with the analysis on reservoir physical properties evolution.The results show that the main dynamics of hydrocarbon migration in the low permeability-tight sandstone reservoir is characterized by diversity.The reservoir becomes tight in the natural gas accumulation period in the deep of Kelasu structural belt.The main dynamic of natural gas migration is the overpressure formed by the multiple factors of high-rate deposition,hydrocarbon generation,and tectonic compression and so on.The oil migration of main accumulation periods in Yanchang Formation of Yishan slope of Ordos Basin is the joint action of the multi-stage and multi-dynamic.