姬塬地区长9 油层组油气运移规律及模式探讨
网络出版日期: 2011-10-20
基金资助
国家科技重大专项“大型油气田及煤层气开发”(编号:2011ZX05044和2011ZX05001)资助
Hydrocarbon migration law and model of Chang 9 reservoir in Jiyuan area, Ordos Basin
Online published: 2011-10-20
徐雄飞 , 王嘉伟 , 杨波 , 杏毅 , 周国宝 , 曹容浩 . 姬塬地区长9 油层组油气运移规律及模式探讨[J]. 岩性油气藏, 2011 , 23(5) : 9 -15 . DOI: 10.3969/j.issn.1673-8926.2011.05.003
The research means and methods of reservoir geochemistry, reservoir geology and sedimentology are applied to discuss the hydrocarbon sources, migration mechanism, dynamics and accumulation pattern of Chang 9 reservoir in Jiyuan area. The result shows that the crude oil of Chang 9 reservoir comes primarily fromthe high-quality hydrocarbon source rocks ofChang 7 reservoir, ofwhich the hydrocarbon migrated downward and accumulated in Chang 9 reservoir. The main dynamic ofChang 7 hydrocarbon migrating to Chang 9 reservoir is mainly fromthe abnormal high pressure of Chang 7 hydrocarbon source rock hydrocarbon pressurization and excess pressure difference between Chang 7 and Chang 9 reservoir. The vertical superposition and lateral connecting sand bodies and the fractures formed in the regional tectonic activity are the favorable migration path for connectingChang 7 high-quality hydrocarbon source rocks with Chang 9 reservoir.
Key words: micropore; diagenesis; sandstone reservoir; Jurassic; Lunnan area
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