Editorial office of ACTA PETROLEI SINICA ›› 2006, Vol. 27 ›› Issue (4): 29-35.DOI: 10.7623/syxb200604007
• Petroleum Exploration • Previous Articles Next Articles
Li Zheng
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李政
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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
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
CLC Number:
TE111.2
Li Zheng. Hydrocarbon-generation evolution of Permian-Carboniferous source rock in Jiyang Depression[J]. Editorial office of ACTA PETROLEI SINICA, 2006, 27(4): 29-35.
李政. 济阳坳陷石炭系—二叠系烃源岩的生烃演化[J]. 石油学报, 2006, 27(4): 29-35.
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URL: http://www.syxb-cps.com.cn/EN/10.7623/syxb200604007
http://www.syxb-cps.com.cn/EN/Y2006/V27/I4/29