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鄂尔多斯盆地南缘奥陶系露头沥青地球化学特征与意义

金晓辉 孙润轩 陈霞 孙宜朴 张军涛 李淑筠

金晓辉, 孙润轩, 陈霞, 孙宜朴, 张军涛, 李淑筠. 鄂尔多斯盆地南缘奥陶系露头沥青地球化学特征与意义[J]. 石油实验地质, 2016, 38(5): 647-651. doi: 10.11781/sysydz201605647
引用本文: 金晓辉, 孙润轩, 陈霞, 孙宜朴, 张军涛, 李淑筠. 鄂尔多斯盆地南缘奥陶系露头沥青地球化学特征与意义[J]. 石油实验地质, 2016, 38(5): 647-651. doi: 10.11781/sysydz201605647
Jin Xiaohui, Sun Runxuan, Chen Xia, Sun Yipu, Zhang Juntao, Li Shujun. Geochemical characteristics and significance of bitumen of Ordovician outcrops at the southern margin of Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2016, 38(5): 647-651. doi: 10.11781/sysydz201605647
Citation: Jin Xiaohui, Sun Runxuan, Chen Xia, Sun Yipu, Zhang Juntao, Li Shujun. Geochemical characteristics and significance of bitumen of Ordovician outcrops at the southern margin of Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2016, 38(5): 647-651. doi: 10.11781/sysydz201605647

鄂尔多斯盆地南缘奥陶系露头沥青地球化学特征与意义

doi: 10.11781/sysydz201605647
基金项目: 国家科技重大专项(2011ZX05005)和中国石化科技部项目(2014P1067)资助。
详细信息
    作者简介:

    金晓辉(1964-),男,博士,教授级高级工程师,从事油气地质与区带评价研究.E-mail:jinxh.syky@sinopec.com.

  • 中图分类号: TE132.1

Geochemical characteristics and significance of bitumen of Ordovician outcrops at the southern margin of Ordos Basin

  • 摘要: 鄂尔多斯盆地南缘露头沥青赋存于下奥陶统亮甲山组灰岩裂缝中,裂缝近垂直于层面,沥青高约75m,宽约1~44cm,下宽上窄。其沥青质的碳同位素为-28‰,沥青等效反射率分布在1.829%~1.965%之间;沥青和上奥陶统背锅山组烃源岩均具有较低的Pr/Ph值、较高的C24四环萜烷的生物标志物,沥青的C29甾烷优势和低伽马蜡烷指数可能揭示其成烃母质形成于微咸水的低等海洋浮游生物的环境。沥青和背锅山组烃源岩规则甾烷组成均有“V”型特征,C24四环萜烷/C26三环萜烷、Tm/Ts值萜烷生物标志物参数值接近,表示他们具有亲缘关系。南缘奥陶系沥青地球化学特征及成因研究,对评价南缘下古生界碳酸盐岩的勘探潜力具有重要的理论和生产价值。

     

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出版历程
  • 收稿日期:  2016-05-08
  • 修回日期:  2016-08-03
  • 刊出日期:  2016-09-28

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