Coupling of Reservoirs and Structures and Exploration Targets in Lower Yanchang Formation of Triassic, Yanchang Oil Field
详细信息
- 责任者：Wang Xiangzeng (Institute of Shaanxi Yanchang Petroleum Co. ; Xi’an 710075 ; China) ; Gao Shengli
- 刊名：Petroleum Geology & Experiment
- 出版年：2012
- 卷期：34(5)
- 关键词：古构造 ; paleotectonics ; 油藏 ; oil reservoirs ; 油气勘探 ; petroleum exploration ; 鄂尔多斯盆地 ; Ordos Basin
- 页码：p.459-465
- 图表：illus., 36 refs.
- 分类号：1003
- issnNo：ISSN1001-6112
- isbnNo：CN32-1151/TE
摘要
According to the compaction curves of mudstones from over 200 wells in the Yanchang Oil Field of the Ordos Basin,the plane distribution of compaction coefficients was analyzed systematically.The coupling relationships between compaction coefficient and reservoir distribution,abnormal pressure and reservoir distribution,compaction coefficient and paleostructure were studied.As a result,the distribution of abnormal pressures and source rocks determined the distribution of reservoirs in different strata. The coupling relationship between compaction coefficient and paleostructure during the maximum hydrocarbon generation stage was further studied.The distribution law and hydrocarbon generation potential of the Zhangjiatan shale in Chang 7 and the Lijiapan shale in Chang 9 were discussed.