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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2008  >  30(6): 606-610
Jiang Qigui, Wang Yanbin, Qin Jianzhong, Wang Qin, Zhang Caiming. KINETICS OF HYDROCARBON GENERATION OF MARINE SOURCE ROCKS IN SOUTH CHINA[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2008, 30(6): 606-610. doi: 10.11781/sysydz200806606
Citation: Jiang Qigui, Wang Yanbin, Qin Jianzhong, Wang Qin, Zhang Caiming. KINETICS OF HYDROCARBON GENERATION OF MARINE SOURCE ROCKS IN SOUTH CHINA[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2008, 30(6): 606-610. doi: 10.11781/sysydz200806606
shu

KINETICS OF HYDROCARBON GENERATION OF MARINE SOURCE ROCKS IN SOUTH CHINA

doi: 10.11781/sysydz200806606
  • 1.

    China University of Mining Technology, Beijing 100083, China

  • 2. Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214151, China

  • Received Date: 2008-05-14
  • Rev Recd Date: 2008-10-06
  • Publish Date: 2008-12-28
    Abstract
  • With Rock-Eval 6 and Optkin kinetics software,the kinetics analysis on four types of kerogens of marine hydrocarbon source rocks in South China were carried out.The results showed that,in the similar maturity period,the hydrocarbon generation activation energy of kerogen was Ⅲ>Ⅱ2>Ⅱ1>Ⅰ;the ability of hydrocarbon generation was Ⅰ>Ⅱ1>Ⅱ2>Ⅲ;the span of generating effective hydrocarbon activation energy was ΔEⅠ<15kJ/mol,15 kJ/mol<ΔEⅡ1<20kJ/mol,20kJ/mol<ΔEⅡ2<30 kJ/mol,ΔEⅢ>30kJ/mol;the span of generating effective hydrocarbon temperature was ΔTⅠ≤65℃,65℃≤ΔTⅡ1≤75℃,75℃≤ΔTⅡ2≤85℃,ΔTⅢ≥110℃.The time of hydrocarbon generation conversion rate to reach 10% was Ⅲ<Ⅱ2<Ⅱ1<Ⅰ;and the type Ⅰ kerogen first reached to 90% conversion rate,and then the typeⅡ1,type Ⅱ2 and type Ⅲ of kerogen.The character of hydrocarbon generation activation energy distribution of kerogen was determined by their element composition and organic high molecular structure.The hydrocarbon generation speed of good marine source rocks was very fast.

     

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