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中国东部新生代沉积盆地热状态与油气成藏潜力——以苏北—南黄海盆地为例 被引量:1

Deep thermal state and hydrocarbon accumulation potential of Cenozoic sedimentary basins in East China:a case study of Subei-South Yellow Sea basin
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摘要 中国东部新生代盆地有一个值得关注的现象:裂后热沉降量大小与油气资源贫富之间存在密切的相关性。为探究这一现象潜在的成因机制,探讨沉积盆地深部热地质作用与油气富集分布的相关性,以磁异常反演的居里面深度作为沉积盆地深部热状态一级约束,建立其与干酪根裂解的油气生成反应速度之间的定量关系,并以苏北—南黄海盆地为例证,揭示了沉积盆地烃源岩有机质生烃与深部热状态之间具有显著的正相关性。该认识有助于更好地理解沉积盆地构造—热体制与生烃过程,可为油气成藏规律与资源潜力评价提供研究新视角。 A remarkable phenomenon of the Cenozoic basins in East China is that there is a close correlation between the amount of post⁃rift thermal subsidence and the petroleum resources.In order to explore the underlying mechanism of this phenomenon and the correlation between deep thermal processes of sedimentary basins and the distribution of oil and gas resources,this paper takes the Curie interface depth estimated by the magnetic data as the first⁃order constraint for the deep thermal state to determine the quantitative relationship between it and the reaction rate of hydrocarbon generation from the cracking of kerogen.Moreover,the Subei-South Yellow Sea basin is an example of the outstanding positive correlation between hydrocarbon generation from source rocks and the deep thermal state,which could help to understand the tectonic-thermal system of sedimentary basin and hydrocarbon generation process,and offer a new research perspective for hydrocarbon accumulation and evalua⁃tion of petroleum potential.
作者 徐曦 胡瀚文 张加洪 肖梦楚 高顺莉 XU Xi;HU Hanwen;ZHANG Jiahong;XIAO Mengchu;GAO Shunli(China Aero Geophysical Survey and Remote Sensing Center for Natural Resources,Beijing 100083,China;School of Earth Science,Zhejiang University,Hangzhou,Zhejiang 310027,China;School of Resource and Environmental Sciences,Wuhan University,Wuhan,Hubei 430070,China;Shanghai Branch,CNOOC(China)Co.,Ltd.,Shanghai 200030,China)
出处 《石油实验地质》 CAS CSCD 北大核心 2020年第6期928-937,共10页 Petroleum Geology & Experiment
基金 中国博士后科学基金(面上)(2019M652062) 自然资源部航空地球物理与遥感地质重点实验室课题(2020YFL13) 国家自然科学基金(41902202)资助。
关键词 沉积盆地 热状态 油气资源 苏北—南黄海盆地 中国东部 sedimentary basin thermal state petroleum potential Subei-South Yellow Sea basin East China
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