西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (6): 18-21.DOI: 10.3863/j.issn.1000-2634.2008.06.005

• 地质勘探 • Previous Articles     Next Articles

KINETICS STUDY ON HYDROCARBON GENERATION OF KEROGEN IN OPENSYSTEM

ZHANG Hui1,2 PENG Ping-an1

  

  1.  1.The State key laboratory of Organic Geochemistry，Guangzhou Institute of Geochemistry，Chinese Academy of Sciences，Guangzhou Guangdong 510640，China；2.Graduate School ，Chinese Academy of Sciences，Beijing 100038
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-12-20 Published:2008-12-20

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Abstract:

Qualitatively evaluating hydrocarbon source rocks by means of hydrocarbon generation dynamics is the latest way developed in recent years.A new method for the

quantitative assessment of source rocks by means of the chemical reaction Kinetics is developed gradually over the recent years.In this paper，the characteristics of

hydrocarbon generation of KerogenⅠandⅡare studied，and the kinetics parameters of hydrocarbon generation are determined and calibrated in opensystem with thermal

simulating experiment.The activate energy values of KerogenⅠandⅡrange from 230 to 276kJ•mol-1 and from 234 to 276kJ•mol-1 respectively.The kinetics

parameters then are extrapolated to geological condition by using the special kinetics software.The result shows that the main hydrocarbongeneration periods for Kerogen

I is from 130℃ to 180℃（Ro between 0.80% and 1.63%），while the main hydrocarbongeneration periods are from 141℃ to 177℃（Ro between 0.92% and 1.56%）for

KerogenⅡ.Kinetics of hydrocarbon generation can make experimental data better extrapolate to geological process，thus there is broad prospective in assessment and

exploration of source rock.

Key words: opensystem, Kerogen, simulating experiment, Kinetics of hydrocarbon generation, main hydrocarbongeneration periods

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