| 海拉尔盆地乌尔逊凹陷无机CO_2充注驱油的流体包裹体证据 |
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| 引用本文： | 高玉巧,刘立,胡文瑄,曲希玉.海拉尔盆地乌尔逊凹陷无机CO_2充注驱油的流体包裹体证据[J].矿物岩石地球化学通报,2009,28(1). |
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| 作者姓名： | 高玉巧 刘立 胡文瑄 曲希玉 |
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| 作者单位： | 1. 南京大学,地球科学与工程学院,内生金属矿床国家重点实验室,南京,210093
2. 吉林大学,地球科学学院,长春,130061 |
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| 基金项目： | 国家博士后科学基金，国家自然科学基金 |
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| 摘 要： | CO2充注驱油是一种普遍的地质现象,对揭示油气藏中油气的动态成藏规律具有重要的指示意义.海拉尔盆地乌尔逊凹陷含片钠铝石砂岩既示踪了CO2充注,又记录了油气充注,是进行CO2充注驱油研究的理想岩石类型.通过岩石学和流体包裹体地球化学研究,确定了含片钠铝石砂岩的成岩共生序列、油气充注历史和CO2充注驱油的微观证据.研究表明,该区油气充注是一个连续的过程,开始于石英次生加大早期(120 Ma),在片钠铝石沉淀前(105～95 Ma)达到充注高峰.CO2充注晚于大规模油气充注,充注之后形成的自生矿物组合为片钠铝石与铁白云石.片钠铝石中首次发现一定数量的原生油气包裹体,为CO2充注驱油提供了重要的微观证据.
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| 关 键 词： | CO2充注驱油 流体包裹体 片钠铝石 海拉尔盆地 乌尔逊凹陷 |
Petroleum Displacement by Inorganic CO_2 in Wuerxun Depression,Hailaer Basin:Evidence from Fluid Inclusions |
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| GAO Yu-qiao,LIU Li,HU Wen-xuan,QU Xi-yu.Petroleum Displacement by Inorganic CO_2 in Wuerxun Depression,Hailaer Basin:Evidence from Fluid Inclusions[J].Bulletin of Mineralogy Petrology and Geochemistry,2009,28(1). |
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| Authors: | GAO Yu-qiao LIU Li HU Wen-xuan QU Xi-yu |
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| Institution: | GAO Yu-qiao1,LIU Li2,HU Wen-xuan1,QU Xi-yu21.State Key Laboratory for Mineral Deposit Research,School of Earth Sciences , Engineering,Nanjing University,Nanjing 210093,China,2.College of Earth Sciences,Jilin University,Changchun 130061 |
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| Abstract: | Petroleum displacement by CO2 is a general phenomenon,which supplies important indicative significance for revealing the rule of oil and gas dynamic accumulation.Dawsonite-bearing sandstones,either as a tracer for CO2 injection or the record of hydrocarbon charge,is an ideal rock type to study petroleum displacement by CO2.The paragenetic sequence of the sandstones,oil and gas charge history and microcosmic evidence for petroleum displacement by CO2 were investigated by means of petrology and geochemistry o... |
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| Keywords: | Petroleum displacement by CO2 Fluid inclusion Dawsonite Hailaer Basin Wuerxun Depression |
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