Effects of biodegradation on crude oils from Karamay Oilfield
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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.
KeywordsIsoprenoids Junggar Basin Mass Chromatogram Gammacerane Regular Steranes
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