西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (1): 14-18.DOI: 10.3863/j.issn.1674-5086.2009.01.004

• 地质勘探 • Previous Articles     Next Articles

SOME PROBLEMS ABOUT IMPLICATION OF HYDROCARBON-GENERATION POTENTIAL METHOD ON RESEARCH THE EXPULSION CHARACTERISTICS OF SOURCE ROCKS

MA Zhong-zhen1 PANG Xiong-qi2 SU Jun-ke3 DAI Guo-wei4   

  1. 1.Research Institute of Petroleum Exploration & evelopment,PetroChina,Beijing 100083，China;2.Key Laboratory for Hydrocarbon Accumulation Mechanism，Ministry of EducationChina University of Petroleum,Changping Beijing 102249,China；3.Oil Production PlantNo.1,Qinghai Oil field,Haixi Qinghai 817500，China；4.Exploration and Development Research Institute of Daqing Oilfield Company Ltd.,DaqingHeilongjiang 163712，China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-02-20 Published:2009-02-20

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Abstract:

Based on material balance principle and hydrocarbon expulsion threshold theory,the hydrocarbon expulsion characteristics and history can be studied exactly by using the hydrocarbon-generation potential method.The problems are discussed which can be easily neglected during the process of study by introducing the calculation principle and steps of hydrocarbon-generated potential method.The problems are that firstly,due to the heterogeneous distribution of kerogen in source rocks,an average value of hydrocarbongenerated index is used to stand for hydrocarbon-generation index in the corresponding depth,secondly,the data should be "Depth homing" before setting up the hydrocarbon expulsion model in a erosion area,thirdly,hydrocarbon expulsion rate of source rocks is kept as a constant value during erosion stage,which needs to be rectified,and lastly,the erosion thickness should be studied before calculating the effective thickness of source rocks.

Key words: hydrocarbon expulsion threshold, hydrocarbon-generation potential method, hydrocarbon expulsion characteristics, erosion, effective thickness

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