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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2012  >  34(2): 182-185
Qian Menhui, Hou Dujie, Jiang Qigui, Zheng Lunju. Features and geologic significance of maceral composition of coal-bearing source rocks in Xihu Sag[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2012, 34(2): 182-185. doi: 10.11781/sysydz201202182
Citation: Qian Menhui, Hou Dujie, Jiang Qigui, Zheng Lunju. Features and geologic significance of maceral composition of coal-bearing source rocks in Xihu Sag[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2012, 34(2): 182-185. doi: 10.11781/sysydz201202182
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Features and geologic significance of maceral composition of coal-bearing source rocks in Xihu Sag

doi: 10.11781/sysydz201202182
  • 1.

    Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China

  • 2. Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism of Ministry of Education, China University of Geosciences, Beijing 100083, China

  • Received Date: 2011-04-25
  • Rev Recd Date: 2012-02-02
  • Publish Date: 2012-03-28
    Abstract
  • According to the studies of well HY14-1-1,the maceral composition of coal-bearing source rocks in the Xihu Sag was divided into 2 types including type Ⅰ mainly of vitrinite and type Ⅱ mainly of exinite and sapropelinite.The simulations of hydrocarbon generation of the above-mentioned types indicated that the type Ⅰ mainly generated liquid hydrocarbon while the type Ⅱ mainly generated gaseous hydrocarbon.The vertical and horizontal differences between the 2 types of coal-bearing source rocks led to the present distribution of petroleum in the Xihu Sag,that is,oil in the upper formations and gas in the lower formations.

     

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