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Article Navigation >  Acta Sedimentologica Sinica  > 2010  >  28(4): 808-814

WANG Tongshan. GasGeneration Mechanism of the Pyrolysis of Asphaltenes in Marine Crude Oil and Its Geological Application[J]. Acta Sedimentologica Sinica, 2010, 28(4): 808-814.
Citation: WANG Tongshan. GasGeneration Mechanism of the Pyrolysis of Asphaltenes in Marine Crude Oil and Its Geological Application[J]. Acta Sedimentologica Sinica, 2010, 28(4): 808-814.
shu

GasGeneration Mechanism of the Pyrolysis of Asphaltenes in Marine Crude Oil and Its Geological Application

  • Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083

More Information
  • Corresponding author: WANG Tongshan
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2010-08-10
  • The pyrolysis simulation of the asphaltenes in marine crude oil in Tarim Basin was carried out in an anhydrous closed system under a constant pressure of 50 MPa. The gasgeneration mechanism of asphaltene in marine crude oil was discussed on the basis of the yields and carbon isotopic composition of gaseous hydrocarbons and the yields of pyrobitumen. Kinetic parameters of gaseous hydrocarbons generation generated from asphaltene was obtained by kinetic calculation and extrapolated to geological conditions. Gaseous hydrocarbon begin to generate from asphaltene around Easy%Ro 0.8, and the conversion rate of gaseous hydrocarbon reach to 1 at Easy%Ro 2.65. The main gasgeneration period of asphaltene pyrolysis range from Easy%Ro 0.9 (conversion rate 0.1) to Easy% Ro 2.3 (conversion rate 0.9). The application result can provide a theoretical basis for identification and assessment of oil cracking gas and exploration decision of marine carbonate area in China. 
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    Created with Highcharts 5.0.7Chart context menuAccess Area Distribution其他: 2.0 %其他: 2.0 %其他: 3.0 %其他: 3.0 %United States: 2.5 %United States: 2.5 %上海: 0.5 %上海: 0.5 %兰州: 0.5 %兰州: 0.5 %凉山: 0.5 %凉山: 0.5 %北京: 8.9 %北京: 8.9 %北海: 0.5 %北海: 0.5 %十堰: 0.5 %十堰: 0.5 %台州: 1.0 %台州: 1.0 %呼和浩特: 1.0 %呼和浩特: 1.0 %哥伦布: 2.0 %哥伦布: 2.0 %宿迁: 0.5 %宿迁: 0.5 %张家口: 2.5 %张家口: 2.5 %成都: 2.0 %成都: 2.0 %淮安: 1.0 %淮安: 1.0 %深圳: 0.5 %深圳: 0.5 %玉林: 1.0 %玉林: 1.0 %盐城: 0.5 %盐城: 0.5 %石家庄: 1.0 %石家庄: 1.0 %芒廷维尤: 19.7 %芒廷维尤: 19.7 %苏州: 1.5 %苏州: 1.5 %西宁: 45.8 %西宁: 45.8 %贵港: 0.5 %贵港: 0.5 %贵阳: 0.5 %贵阳: 0.5 %遂宁: 0.5 %遂宁: 0.5 %其他其他United States上海兰州凉山北京北海十堰台州呼和浩特哥伦布宿迁张家口成都淮安深圳玉林盐城石家庄芒廷维尤苏州西宁贵港贵阳遂宁
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  • Received:  1900-01-01
  • Revised:  1900-01-01
  • Published:  2010-08-10

GasGeneration Mechanism of the Pyrolysis of Asphaltenes in Marine Crude Oil and Its Geological Application

  • Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083
    Corresponding author: WANG Tongshan
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2010-08-10

Abstract: The pyrolysis simulation of the asphaltenes in marine crude oil in Tarim Basin was carried out in an anhydrous closed system under a constant pressure of 50 MPa. The gasgeneration mechanism of asphaltene in marine crude oil was discussed on the basis of the yields and carbon isotopic composition of gaseous hydrocarbons and the yields of pyrobitumen. Kinetic parameters of gaseous hydrocarbons generation generated from asphaltene was obtained by kinetic calculation and extrapolated to geological conditions. Gaseous hydrocarbon begin to generate from asphaltene around Easy%Ro 0.8, and the conversion rate of gaseous hydrocarbon reach to 1 at Easy%Ro 2.65. The main gasgeneration period of asphaltene pyrolysis range from Easy%Ro 0.9 (conversion rate 0.1) to Easy% Ro 2.3 (conversion rate 0.9). The application result can provide a theoretical basis for identification and assessment of oil cracking gas and exploration decision of marine carbonate area in China. 

WANG Tongshan. GasGeneration Mechanism of the Pyrolysis of Asphaltenes in Marine Crude Oil and Its Geological Application[J]. Acta Sedimentologica Sinica, 2010, 28(4): 808-814.
Citation: WANG Tongshan. GasGeneration Mechanism of the Pyrolysis of Asphaltenes in Marine Crude Oil and Its Geological Application[J]. Acta Sedimentologica Sinica, 2010, 28(4): 808-814.
shu

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