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Article Navigation >  Acta Sedimentologica Sinica  > 2007  >  25(4): 640-645

TANG Youjun. Geochemical Characteristics and Origin of Reservoir Bitumen from Well Zhong 1 in Katake Uplift, Tarim Basin[J]. Acta Sedimentologica Sinica, 2007, 25(4): 640-645.
Citation: TANG Youjun. Geochemical Characteristics and Origin of Reservoir Bitumen from Well Zhong 1 in Katake Uplift, Tarim Basin[J]. Acta Sedimentologica Sinica, 2007, 25(4): 640-645.
shu

Geochemical Characteristics and Origin of Reservoir Bitumen from Well Zhong 1 in Katake Uplift, Tarim Basin

  • Key Laboratory for Petroleum Accumulation, China University of Petroleum, Beijing 100083

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  • Corresponding author: TANG Youjun
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2007-08-10
  • Oil source of marine crude oils from Tarim Basin is still disputed; However, the research on the reservoir bitumen may provide a new evidence to elucidate oil source. Geochemical characteristics of different strata reservoir bitumen from Well Zhong1 in Katake uplift are discussed here in detail. Pr/Ph ratios of reservoir bitumens from Well Zhong 1 range from 1.14 to 1.39, CPI ratios from 1.01 to 1.08 which indicate no odd even predominance of normal alkanes, OEP ratios from 0.98 to 1.05. The content of gammacerane and C28 sterane of reservoir bitumens from Well Zhong 1 is low, while dibenzothiophene series are abundant. Sterane isomerization maturity parameter and Ts/Ts+Tm ratio indicate that the degree of maturity of reservoir bitumen from
    Well Zhong1 is mature to high mature. Based on biomarker distribution difference, it is concluded that reservoir bitumen from Well Zhong1 of which molecular parameters are contrary to those in Cambrian oil from Well Tadong 2 originated from the upper Ordovician source rock. 
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  • Received:  1900-01-01
  • Revised:  1900-01-01
  • Published:  2007-08-10

Geochemical Characteristics and Origin of Reservoir Bitumen from Well Zhong 1 in Katake Uplift, Tarim Basin

  • Key Laboratory for Petroleum Accumulation, China University of Petroleum, Beijing 100083
    Corresponding author: TANG Youjun
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2007-08-10

Abstract: Oil source of marine crude oils from Tarim Basin is still disputed; However, the research on the reservoir bitumen may provide a new evidence to elucidate oil source. Geochemical characteristics of different strata reservoir bitumen from Well Zhong1 in Katake uplift are discussed here in detail. Pr/Ph ratios of reservoir bitumens from Well Zhong 1 range from 1.14 to 1.39, CPI ratios from 1.01 to 1.08 which indicate no odd even predominance of normal alkanes, OEP ratios from 0.98 to 1.05. The content of gammacerane and C28 sterane of reservoir bitumens from Well Zhong 1 is low, while dibenzothiophene series are abundant. Sterane isomerization maturity parameter and Ts/Ts+Tm ratio indicate that the degree of maturity of reservoir bitumen from
Well Zhong1 is mature to high mature. Based on biomarker distribution difference, it is concluded that reservoir bitumen from Well Zhong1 of which molecular parameters are contrary to those in Cambrian oil from Well Tadong 2 originated from the upper Ordovician source rock. 

TANG Youjun. Geochemical Characteristics and Origin of Reservoir Bitumen from Well Zhong 1 in Katake Uplift, Tarim Basin[J]. Acta Sedimentologica Sinica, 2007, 25(4): 640-645.
Citation: TANG Youjun. Geochemical Characteristics and Origin of Reservoir Bitumen from Well Zhong 1 in Katake Uplift, Tarim Basin[J]. Acta Sedimentologica Sinica, 2007, 25(4): 640-645.
shu

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