收稿日期: 2010-01-19
修回日期: 2010-03-29
网络出版日期: 2010-10-10
基金资助
高等学校博士学科点专项科研基金项目(编号:20050533019)资助.
Geochemical Characteristics and Evolution of the Hydrocarbon Source Rocks from Lianyuan Depression in the Middle of Hunan Province
Received date: 2010-01-19
Revised date: 2010-03-29
Online published: 2010-10-10
王明艳, 郭建华, 旷理雄, 朱锐 . 湘中坳陷涟源凹陷烃源岩油气地球化学特征[J]. 天然气地球科学, 2010 , 21(5) : 721 -726 . DOI: 10.11764/j.issn.1672-1926.2010.05.721
Hydrocarbon source rocks in Lianyuan depression include carbonate rock, mudstone and coal. The authors studied geochemical characteristics and maturation of organic matters in the Devonian\|Permian source rocks from Lianyuan depression based on the geochemical data of residual organic carbon content, chloroform bitumen A, vitrinite reflectance and fluid inclusions of specimens. Results suggest the source rocks of Lianyuan depression mature and generating mainly gas. The authors estimated the hydrocarbon generation intensity of the source rocks due to the high thermal evolution and little residual organic matter abundance. After analyzing the geochemical characteristics, the hydrocarbon generation intensity and the matching relationship between tectonic movement and hydrocarbon generation of the source rocks, the authors believe that the Devonian\|Permian source rocks of Lianyuan depression are of middle hydrocarbon generation potential. And the source rocks of the Permian Longtan Coal Formation have the potential to secondary hydrocarbon generation.
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