Fault Sealing Study on Fault-Lithologic Reservoirs in Gaoyou Depression of Subei Basin
详细信息
- 责任者：Dong Caiyuan (Research Institute of Petroleum Exploration and Development ; PetroChina ; Beijing 100083 ; China) ; Liu Zhen
- 刊名：Fault-Block Oil and Gas Fields
- 出版年：2013
- 卷期：20(6)
- 关键词：岩性油气藏 ; lithologic reservoir ; 断层封闭性 ; fault sealing property ; 高邮凹陷 ; Gaoyou sag
- 页码：p.686-689
- 图表：5 illus., 1 table, 15 refs.
- 分类号：1003
- issnNo：ISSN1005-8907
- isbnNo：CN41-1219/TE
摘要
libri" size="3">Fault sealing evolution is analyzed based on the normal stress calculation of Dainan Formation reservoir. The favorable area of fault-lithologic reservoirs is predicted in Gaoyou Depression of Subei Basin. It is concluded that the present normal stress of major faults in fauh-lithologic reservoirs is from 13.8 to 25 MPa and the critieal value of fauh sealing is 13.8 MPa. The normal stress of fauhs in fauh-lithologic reservoirs in accumulation period is from 8.9 to 20.2 MPa, most of tile reservoir faults are open in the accumulation period, but they are closed now. However, there is one reservoir with fault sealing all the time, which is Shaoshen I reservoir thought to be the own source type.