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    重排藿烷:示踪油藏充注途径的分子标志物

    李威 窦立荣 文志刚 张光亚 程顶胜 刘爱香 客伟利

    李威, 窦立荣, 文志刚, 张光亚, 程顶胜, 刘爱香, 客伟利, 2021. 重排藿烷:示踪油藏充注途径的分子标志物. 地球科学, 46(7): 2507-2514. doi: 10.3799/dqkx.2018.322
    引用本文: 李威, 窦立荣, 文志刚, 张光亚, 程顶胜, 刘爱香, 客伟利, 2021. 重排藿烷:示踪油藏充注途径的分子标志物. 地球科学, 46(7): 2507-2514. doi: 10.3799/dqkx.2018.322
    Li Wei, Dou Lirong, Wen Zhigang, Zhang Guangya, Cheng Dingsheng, Liu Aixiang, Ke Weili, 2021. Rearranged Hopane: Molecular Tracers for Filling Pathway in Oil Reservoirs. Earth Science, 46(7): 2507-2514. doi: 10.3799/dqkx.2018.322
    Citation: Li Wei, Dou Lirong, Wen Zhigang, Zhang Guangya, Cheng Dingsheng, Liu Aixiang, Ke Weili, 2021. Rearranged Hopane: Molecular Tracers for Filling Pathway in Oil Reservoirs. Earth Science, 46(7): 2507-2514. doi: 10.3799/dqkx.2018.322

    重排藿烷:示踪油藏充注途径的分子标志物

    doi: 10.3799/dqkx.2018.322
    基金项目: 

    国家油气重大专项项目 2011ZX05029

    详细信息
      作者简介:

      李威(1988-), 男, 工程师, 主要从事油气形成与分布方面的研究工作.E-mail: liwei173@cnooc.com.cn

      通讯作者:

      窦立荣, E-mail: doulirong@cnpcint.com

    • 中图分类号: P618

    Rearranged Hopane: Molecular Tracers for Filling Pathway in Oil Reservoirs

    • 摘要: 基于C30重排藿烷(C30DH)和C30藿烷(C30H)热稳定性差异,研究了C30DH/C30H作为油气运移方向和充注途径的可行性.结果发现:C30DH结构稳定性高于C30H,C30DH/C30H参数具有成熟度属性;同时对比分析C30DH/C30H参数与咔唑类参数的相关性,认为两者之间正相关性明显,表明C30DH/C30H参数不仅是良好的热成熟度参数还是良好的石油充注运移参数.M油田位于Fula凹陷东部,M油田原油为弱氧化-还原、淡水-微咸水环境下低等藻类与高等植物混源生成,属于同一族群原油.利用C30DH/C30H参数示踪Fula凹陷M油田石油充注方向,油气运移途径主要为自北向南,同时还发育自西向东的运移途径;咔唑类参数也验证了C30DH/C30H参数示踪油气运移的准确性.结果表明C30DH/C30H参数是示踪石油充注途径的有效参数.

       

    • 图  1  Fula坳陷M油田分布(据Dou et al., 2013修改)

      Fig.  1.  Distribution of M oil fields in Fula depression(modified by Dou et al., 2013)

      图  2  Fula坳陷原油链烷烃和萜烷分布对比

      X. 早洗脱重排藿烷(early-eluting rearranged hopane);C29DH. C29重排藿烷(C29-diahopane);C30DH. C30重排藿烷(C30-diahopane);C30H. C30藿烷(C30-hopane);25-NHC29. 25-降藿烷(25-norhopane)

      Fig.  2.  Distributions of chain alkanes and terpane in crude oil from Fula depression

      图  3  Fula凹陷原油地球化学成因判别

      TeT. 四环萜烷;TT. 三环萜烷;H. 藿烷;G. 伽马蜡烷;TAS. 三芳甾烷

      Fig.  3.  Crude oil geochemical genesis discriminant diagrams Fula depression

      图  4  咔唑、二苯并噻吩、藿烷系列结构

      Fig.  4.  Structures of hopane, carbazoles and dibenzothiophenes compounds

      图  5  C30DH /C30H与Ts/(Ts+Tm)、咔唑类含氮化合物含量相关图

      Fig.  5.  C30DH /C30H with Ts/(Ts+Tm) and Carbazole contains nitrogen compounds correlation diagram

      图  6  Fula凹陷M油田油藏充注方向示意图

      Fig.  6.  Schematic diagram of oil migration orientation of M oil field, in Fula depression

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    • 收稿日期:  2017-08-28
    • 刊出日期:  2021-07-15

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