石油学报 ›› 2006, Vol. 27 ›› Issue (4): 29-35.DOI: 10.7623/syxb200604007

• 地质勘探 • 上一篇    下一篇

济阳坳陷石炭系—二叠系烃源岩的生烃演化

李政   

  1. 中国石化胜利油田地质科学研究院, 山东东营, 257015
  • 收稿日期:2005-08-31 修回日期:2005-12-12 出版日期:2006-07-25 发布日期:2010-05-21
  • 作者简介:李政,男,1975年3月生,1997年毕业于中国地质大学(武汉)石油系,现为中国石化胜利油田地质科学研究院工程师,主要从事油气地球化学研究工作.E-mail:lixzheng@slof.com
  • 基金资助:
    国家自然科学基金项目(No.40363024)资助.

Hydrocarbon-generation evolution of Permian-Carboniferous source rock in Jiyang Depression

Li Zheng   

  1. Research Institute of Geological Sciences, Sinopec Shengli Oilfield Company, Dongying 257015, China
  • Received:2005-08-31 Revised:2005-12-12 Online:2006-07-25 Published:2010-05-21

摘要: 济阳坳陷石炭系—二叠系煤系烃源岩在多期构造运动的影响下发生过多次生烃演化.对石炭系—二叠系煤系烃源岩在不同地质时期生烃过程的动态分析表明,研究区石炭系—二叠系有机质具有阶段性成熟演化特征和多次生烃过程,其中燕山期和喜山期是济阳坳陷石炭系—二叠系煤系烃源岩最重要的生烃期.利用镜质体反射率对济阳坳陷次级凹陷的石炭系—二叠系烃源岩的再次生烃门限进行了划分,确定了再次生烃门限深度约为3 900~4 500 m.按照不同地区的石炭系—二叠系煤系烃源岩的生烃—埋藏历史,将其生烃演化过程分为4种类型,并指出了济阳坳陷石炭系—二叠系煤系烃源岩再次生烃的有利地区.

关键词: 济阳坳陷, 石炭系—二叠系, 煤系烃源岩, 构造运动, 生烃演化

Abstract: The Permian-Carboniferous coal-bearing source rocks in Jiyang Depression experienced the complicated tectonic-burial history.The multiple hydrocarbon-generation evolution took place in this area.The dynamic analysis on the hydrocarbon-generation process in different geological times revealed that the maturity of the Permian-Carboniferous coal-bearing source rocks in Jiyang Depression evolved stage by stage,and there existed many times of hydrocarbon-generation.The important hydrocarbon-generation processes of Permian-Carboniferous coal-bearing source rock in Jiyang Depression took place in the Yanshanian and Himalayan periods.The hydrocarbon-regeneration threshold depth of the Permian-Carboniferous coal-bearing source rock in Jiyang Depression compartmentalized by virinite reflectance is about from 3900 meters to 4500 meters.According to the hydrocarbon-generation and burial history of the Permian-Carboniferous coal-bearing source rocks in different area,the hydrocarbon-generation process was classified into four types.The available zone for hydrogen-regeneration of the Permian-Carboniferous coal-bearing source rock in Jiyang Depression was presented.

Key words: Jiyang Depression, Permian-Carboniferous period, coal-bearing source rock, tectonic movement, hydrocarbon-generation evolution

中图分类号: