Chinese Journal of Geochemistry

, Volume 8, Issue 1, pp 15–24 | Cite as

Effects of biodegradation on crude oils from Karamay Oilfield

  • Yang Bin
  • Yang Jianqiang


Studies of biological marker compounds in five oil samples from a profile where normal crude oil, low condensate oil and heavy oil are produced in the Karamay Oilfield have been carried out with great emphasis on the biodegradation-resisting capability of 13, 17 secosteranes. 8, 14 secohopanes, gammacerane and carotanes. Based on these studies, a sequence of biodegradation-resisting intensities has been established for saturated hydrocarbon biomarkers in crude oils from the Karamay Oilfield.


Isoprenoids Junggar Basin Mass Chromatogram Gammacerane Regular Steranes 


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Copyright information

© Institute of Geochemistry, Chinese Academy of Sciences 1989

Authors and Affiliations

  • Yang Bin
    • 1
  • Yang Jianqiang
    • 1
  1. 1.Research Institute of Petroleum Exploration and DevelopmentXinjiang Petroleum AdministrationChina

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