Xinjiang Petroleum Geology ›› 2011, Vol. 32 ›› Issue (5): 552-556.

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The Research Progress of Hydrogen Sulfide Genesis in Gas Reservoir

ZHAO Xing-qi, CHEN Jian-fa,ZHANG Chen, WU Xue-fei, LIU Ya-zhao, XU Xue-min   

  1. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China
  • Received:2010-09-08 Online:2011-10-01 Published:2020-08-19

Abstract: Hydrogen sulfide is one of the common harmful non-hydrocarbon components which appear in marine carbonate gas reservoir. At present, it is generally believed that biological sulfate-reducing (BSR), thermochemical sulfate reduction (TSR) and thermal cracking of sulfocompound are the main causes of H2S in natural gas reservoirs. In addition, thermochemical sulfate reduction was thought to be the reason of reservoir with high content of H2S. According to the geological condition and geochemical characteristic in gas reservoir, it is easy to find out lots of evidences for the happening of thermal sulfate reduction, by which if the thermal sulfate reduction happened in a gas reservoir can be judged. However, there exist many problems to be solved in the researches on H2S in gas reservoirs ,including the genesis mechanisms, distribution pattern, characteristics of geology and geochemistry of hydrogen sulfide, as well as the relationship between hydrogen sulfide and hydrocarbon, the main controlling factors of forming hydrogen sulfide, etc. This paper summarizes the research progress on hydrogen sulfide genesis and existing issues at home and abroad, so that the hydrogen sulfide reservoirs could be more concerned.

Key words: hydrogen sulfide (H2S), natural gas, thermochemical sulfate reduction (TSR), sulfur isotope, carbon isotope

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