Main Controlling Factors about Hydrocarbon Accumulation in Fault-Block Reservoir in Shahejie Formation of Dongying Sag
详细信息
- 责任者：Yu Yixing (Basin and Reservoir Research Center ; China University of Petroleum ; Beijing 102249 ; China) ; Pang Xiongqi
- 刊名：Fault-Block Oil and Gas Fields
- 出版年：2010
- 卷期：17(4)
- 关键词：断块油气藏 ; fault block reservoir ; 东营凹陷 ; Dongying Sag
- 页码：p.389-392
- 图表：2 illus., 21 refs.
- 分类号：1003
- issnNo：ISSN1005-8907
- isbnNo：CN41-1219/TE
摘要
According to the statistical analysis of the geological features of fault-block reservoir in Shahejie Formation of Dongying Depression, main controlling factors of fault-block reservoirs are studied for oil-gas exploration. The distribution and accumulation of fault-flock reservoirs is mainly controlled by the source rocks, faults, abnormal pressure and physical property. The excellent source rocks from upper Es4 and lower Es3 reservoirs provide the base of hydrocarbon accumulation and the abnormal pressure provides the driving force for hydrocarbon migration. The faults not only control the hydrocarbon migration, but also control the formation of trap. The reservoir distribution is controlled by the physical property of reservoir. The reservoirs, with porosity being higher than 15% and permeability being higher than 10×10-3 μm2, are favorable for hydrocarbon accumulation.