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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2003  >  25(2): 183-189
WANG Chuan-gang, WANG Tie-guan, CHEN Jian-ping, SHI Xin-pu, XIANG Shu-zheng, JIN Tao. RECOGNITION OF CRUDE OIL TYPES IN THE JURASSIC RESERVOIRS OF CAINAN oil field, THE EAST JUNGGAR BASIN[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2003, 25(2): 183-189. doi: 10.11781/sysydz200302183
Citation: WANG Chuan-gang, WANG Tie-guan, CHEN Jian-ping, SHI Xin-pu, XIANG Shu-zheng, JIN Tao. RECOGNITION OF CRUDE OIL TYPES IN THE JURASSIC RESERVOIRS OF CAINAN oil field, THE EAST JUNGGAR BASIN[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2003, 25(2): 183-189. doi: 10.11781/sysydz200302183
shu

RECOGNITION OF CRUDE OIL TYPES IN THE JURASSIC RESERVOIRS OF CAINAN oil field, THE EAST JUNGGAR BASIN

doi: 10.11781/sysydz200302183
  • 1.

    Key Laboratory for Hydrocarbon Accumulation in petrobleum University, Ministry of Education, Beijing 102200, China

  • 2. Research Instiory for Exploration and production, SINOPEC, Beijing, china

  • 3.Key Laborator for Oil & Oil & Gas Geochemistry of Petroleum Exploration & Development Institute, CNPC, Beijing 100083, China

  • 4. Xinjiang Oil Company, CNPC, Karamay 834000, China

  • Received Date: 2002-10-14
  • Rev Recd Date: 2003-03-10
  • Publish Date: 2003-03-25
    Abstract
  • Many oil fields including Cainan with reservoirs aged from the Carboniferous to the Jurassic have been found in the East Junggar Basin.Dark mudstones exist in different sags around Cainan oil field,and there hasn't been a conclusion about the oil origin of the Jurassic reservoirs in the area.According to the geochemical characters of stable carbon isotope and biomarkers,oils can be distinguished into five types.Oil of the Jurassic reservoirs in Cainan is conformity,and is characterized the δ13C value of -27.9‰ to -29.0‰ and the Pr/Ph ratio above 2.5,possibly is originated from mixed organic matters of sapropel and humus in lacustine source rocks of the Middle and the Lower Jurassic coal bearing sequence,instead of the mixture of hydrocarbons from different epochs and different facies of source rocks.

     

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