Formation Characteristics of Inside Buried Hill Reservoir in Wenan Slope of Baxian Sag
详细信息
- 责任者：Kong Lingwu (College of Geosciences ; China University of Petroleum ; Beijing 102249 ; China) ; Gao Xianzhi
- 刊名：Fault-Block Oil and Gas Fields
- 出版年：2011
- 卷期：18(3)
- 关键词：潜山油气藏 ; buried-hill reservoir ; 油气运移 ; oil and gas migration ; 油气聚集 ; oil and gas accumulation
- 页码：p.321-325
- 图表：illus., 12 refs.
- 分类号：1003
- issnNo：ISSN1005-8907
- isbnNo：CN41-1219/TE
摘要
The internal structures,the oil and gas property of found reservoir and the reservoir characteristics in the buried hill belt of Wenan slope in Baxian Sag are studied by the integrated methods of geological,geophysical and geochemistry.The buried hill reservoirs are divided into two types.One is the reservoir in the top buried hill and another is the reservoir in the inside buried hill.The main difference between them is that the latter lies in the inner part of the buried hills and is little affected by the unconformity.Inside barrier is the key to the formation of traps in the inside buried hill.Faults and inside fractured reservoirs control the migration and accumulation of hydrocarbon.The effective distribution of the hydrocarbon supply window and the passage system control the models of hydrocarbon migration and accumulation.Two models of hydrocarbon migration and accumulation are summarized aimed at the Wenan slope area.One is that the hydrocarbon is supplied by the unconformity and the hydrocarbon migrates through the faults and the inside fractured reservoirs;another is that the hydrocarbon is supplied by the faults and the hydrocarbon migrates through the inside fractured reservoirs.
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