西南石油大学学报(自然科学版) ›› 2012, Vol. 34 ›› Issue (2): 43-53.

• 地质勘探 • Previous Articles     Next Articles

Organic Geochemistry of Triassic Source Rock in the SouthernJunggar Basin

Kang Sufang1, Xiang Baoli2, Liao Jiande2, AblimitImin3, Sun Ping′an4   

  1. 1. Exploration Company，Xinjiang Oilfield Company，PetroChina，Karamay，Xinjiang 834000，China2. Institute of Experiment and Analysis，Xinjiang Oilfield Company，PetroChina，Karamay，Xinjiang 834000，China3. Research Institute of Exploration and Development，Xinjiang Oilfield Company，PetroChina，Karamay，Xinjiang 834000，China4. School of Earth Sciences and Engineering，Nanjing University，Nanjing，Jiangsu 210093，China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-04-01 Published:2012-04-01

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Abstract: Whether the effective Triassic hydrocarbon source rocks are developed in the Junggar Basin is debatable. This
problem was discussed in this paper by organic geochemical studies based on a case study in the southern Junggar Basin. Abundance，
type and maturity of organic matter were studied，which，in turn，leads to a discussion on the hydrocarbon generation
potential. The results show that the organic matter abundance has reached the standard of middle to high quality source rocks.
The organic matters are mainly derived from higher plants，and the kerogen is mainly typeIII with some type II. The organic
matters are predominantly mature，and can be highly to over mature in the depression and footwalls of the thrust faults. Thus，the
Triassic mudstones are favorable for hydrocarbon（gas in particular）generation. This should be noted in the future petroleum
exploration.

Key words: the southern Junggar Basin, Triassic, source rocks hydrocarbon generation potential, organic geochemistry

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