- 责任者：Wang Boli (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Zhou Wen
- 刊名：Xinjiang Petroleum Geology
- 出版年：2013
- 卷期：34(6)
- 关键词：裂隙 ; cracks ; 定量分析 ; quantitative analysis ; 鄂尔多斯盆地 ; Ordos Basin
- 页码：p.653-656
- 图表：7 illus., 4 tables, 14 refs.
- 分类号：1003
- issnNo：ISSN1001-3873
- isbnNo：CN65-1107/TE
The Chang-9 member in Honghe oilfield of Ordos basin is of huge oil and gas resource potentials, its hydrocarbon accumulation and productivity are controlled by the fault/fracture system. The fractures are mainly regional structural fractures and fault-associated or de- rived fractures. Based on the fracture characteristics of outcrop, cores, imaging logging and genesis analysis, the palaeostress field of Yan- shan and Himalayan period is simulated by means of finite difference method. At the same time, the fault-associated or derived fractures are predicted based on the control function for fracture density near faults. Comprehensive evaluation results show that the fracture devel- oped area is mainly distributed in the sand body area and near the fault zone, with the prediction accuracy of 78%, providing reasonable geologic bases for optimization of the favorable exploration target area.