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The generation and accumulation of natural gas from Yinan 2 gas pool in Kuqa Depression

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Chinese Science Bulletin

Abstract

By using the methods of hydrocarbon generation kinetics and carbon isotope kinetics, combined with geological background of natural gas pool formation, the generation and accumulation of natural gas from Yinan 2 gas pool was studied in Kuqa Depression of the Tarim Basin. Natural gas of Yinan 2 gas pool is mainly derived from Middle and Lower Jurassic coal-bearing source rocks, and generally belongs to long time-accumulated gas. It is suggested that Yinan 2 gas is chiefly accumulated in the last 5 Ma, itsR 0 ranges from 1.25% to 1.95%, and the loss rate of natural gas is about 25%–30%. This work not only complements and reduces the deficiency of formation model of natural gas pools which traditionally depends on the matching relationships between source rock, reservoir, cap rock, and trap, but also is a useful reference in the study of other gas pools.

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Authors and Affiliations

  1. The State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China

    Xianqing Li, Xianming Xiao, Jingkui Mi, Dehan Liu, Jiagui Shen & Jinzhong Liu

  2. Key Laboratory of Coal Resources, Ministry of Education, China University of Mining and Technology, 100083, Beijing, China

    Xianqing Li

  3. The Research Center of Petroleum Energy and Environment, California Engineer and Technology College, 21910 Currier Rd, 61769, Walnut, CA, USA

    Yongchun Tang

  4. Research Institute of Exploration and Development, Tarim Oil Field Sub-Company, PetroChina, 841000, Korla, China

    Zhongyao Xiao

Authors
  1. Xianqing Li
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  2. Xianming Xiao
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  3. Yongchun Tang
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  4. Zhongyao Xiao
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  5. Jingkui Mi
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  6. Dehan Liu
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  7. Jiagui Shen
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  8. Jinzhong Liu
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Correspondence to Xianqing Li.

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Li, X., Xiao, X., Tang, Y. et al. The generation and accumulation of natural gas from Yinan 2 gas pool in Kuqa Depression. Chin. Sci. Bull. 49 (Suppl 1), 107–114 (2004). https://doi.org/10.1007/BF02890462

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  • DOI: https://doi.org/10.1007/BF02890462

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