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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2012  >  34(1): 66-70
Zhang Jianyong, Liu Wenhui, Tenger, Wang Xiaofang, Pan Liyin, Lü Yuzhen, Fu Xiaodong, Zhang Jingyi, Qing Ying, Liu Jinzhong. Influences of TSR on gaseous hydrocarbon components and carbon isotopes：revelations from high-temperature and high-pressure simulation experiments[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2012, 34(1): 66-70. doi: 10.11781/sysydz201201066
Citation: Zhang Jianyong, Liu Wenhui, Tenger, Wang Xiaofang, Pan Liyin, Lü Yuzhen, Fu Xiaodong, Zhang Jingyi, Qing Ying, Liu Jinzhong. Influences of TSR on gaseous hydrocarbon components and carbon isotopes：revelations from high-temperature and high-pressure simulation experiments[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2012, 34(1): 66-70. doi: 10.11781/sysydz201201066
shu

Influences of TSR on gaseous hydrocarbon components and carbon isotopes：revelations from high-temperature and high-pressure simulation experiments

doi: 10.11781/sysydz201201066
  • 1.

    Hangzhou Research Institute of Petroleum Geology, Petro China, Hangzhou, Zhejiang 310023, China

  • 2. Key Laboratory of Carbonate Reservoirs of CNPC, Hangzhou, Zhejiang 310023, China

  • 3. Lanzhou Center for Oil and Gas Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China

  • 4. SINOPEC Exploration & Production Research Institute, Beijing 100083, China

  • 5. Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China

  • 6. Research Institute of Exploration and Development, Petro China Jidong Oilfield Company, Tangshan, Hebei 063004, China

  • 7. State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, Guangdong 510640, China

  • Received Date: 2011-03-01
  • Rev Recd Date: 2011-11-08
  • Publish Date: 2012-01-28
    Abstract
  • Crude oil rich in sulfur,kerogen of types Ⅱ and Ⅲ and magnesium sulfate were tested in 6 reaction systems(divided into 3 groups) so as to study the influences of thermochemical sulfate reduction(TSR) on gaseous hydrocarbon components and carbon isotopes.The tests were made in gold tube-autoclave system.The above-mentioned 6 reaction systems had the same temperature and pressure;hence their results were comparable.The modeling experiments have proved that: 1)TSR leads to the obvious increase of H2S and CO2 yields;2)TSR makes gaseous hydrocarbon become dryer,that is,the C2+ series are easier to react in TSR while CH4 seldom participates in TSR;3)TSR makes the carbon isotopes of gaseous hydrocarbon become heavier and that of CO2 become lighter;4) TSR makes much more obvious change of carbon isotopes in methane than in ethane and propane,that is,the value of δC2-δC1 decreases.The changes of gaseous hydrocarbon components and carbon isotopes caused by TSR influence the index and empirical formula of gas-source rock correlation,so the influences of TSR should be taken into consideration in gas-source rock correlation of natural gas rich in sulfur.

     

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