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Conduit system and formation mechanism of heat fluids in diapiric belt of Yinggehai basin, China

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Abstract

The conduit system of heat fluids in diapiric belt of Yinggehai basin is dominantly vertical faults and fractures. Detailed research on the formation mechanism and their occurrence features shows that the faults and fractures can be classified into three types: intrastratal dispersive hydrofracture, puncturing fault and upwarping-extensional fault. The development of the fault and fracture system not only resulted in the changes of the temperature and pressure fields in the basin, but also affected the hydrocarbon migration in the overpressured system. These faults and fractures constituted the main pathways for vertical hydrocarbon migration, and opening and closing intermittently led to episodic expulsion of overpressured fluid compartment. Thus there formed the pool-forming model of multi-source mixing and ploy-stage migration and accumulation for hydrocarbons in the Yinggehai basin.

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Authors and Affiliations

  1. Faculty of Earth Resources, China University of Geosciences, 430074, Wuhan, China

    Xinong Xie, Sitian Li & Xiangyun Hu

  2. China Offshore Petroleum Nanhai West Corporation, 524057, Zhanjiang, China

    Weiliang Dong & Minqiang Zhang

Authors
  1. Xinong Xie
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  2. Sitian Li
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  3. Xiangyun Hu
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  4. Weiliang Dong
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  5. Minqiang Zhang
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Additional information

Project jointly supported by the Ministry of Science and Technology of China (Grant No.95-Pre-39) and the National Natural Science Foundation of China (Grant No. 49732005), and A Hundred Excellent Researchers Foundation from the Ministry of Land and Resources.

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Xie, X., Li, S., Hu, X. et al. Conduit system and formation mechanism of heat fluids in diapiric belt of Yinggehai basin, China. Sci. China Ser. D-Earth Sci. 42, 561–571 (1999). https://doi.org/10.1007/BF02877783

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  • DOI: https://doi.org/10.1007/BF02877783

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