Activities of the Concealed Faults and Their Control over the Fluids in
详细信息
- 责任者：Pang Heqing (College of Energy Resources ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Wang Duoyi
- 刊名：Geophysical and Geochemical Exploration
- 出版年：2010
- 卷期：34(1)
- 关键词：隐伏构造 ; subsurface structure ; 油气勘探 ; petroleum exploration ; 四川 ; Sichuan Province
- 页码：p.14-18
- 图表：5 illus., 1 table, 9 refs.
- 分类号：1003
- issnNo：ISSN1000-8918
- isbnNo：CN11-1906/P
摘要
Using quite a few methods, the authors identified 22 concealed faults in Jiandi area of Shifang. These faults can be classified into three groups, striking NNW, NEE and approximately EW, respectively. Influenced by nappe rising of Guankou fault, most of the concealed faults show obvious tenso-shear activities, and zones of water-bearing fractures are well developed. In this paper, hydrogeochemistry of oil and gas and regularity of groundwater activities were used to investigate the configuration relationship between the fractures, cap rocks and groundwater in this area. The authors hold that there exists some potential in search for gas reservoirs of the hydrodynamic trap in some areas of the monoclinic belt and in exploring deep gas reservoirs in the Yunxi-Xujiachang nose-shaped anticline, in spite of the fact that the overall conditions of the oil and gas preservation in this area are poor.
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