| Genetic classification of natural gases in the Bozhong Depression, Bohai Bay, China |
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| 引用本文： | TANG Youjun WEN Zhigang. Genetic classification of natural gases in the Bozhong Depression, Bohai Bay, China[J]. 中国地球化学学报, 2007, 26(3): 325-328. DOI: 10.1007/s11631-007-0325-y |
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| 作者姓名： | TANG Youjun WEN Zhigang |
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| 作者单位： | TANG Youjun1，2，3 and WEN Zhigang 2，3 1 Faculty of Resources and Information Technology，China University of Petroleum，Beijing 100083，China 2 Department of Geochemistry，Yangtze University，Jingzhou 434023，China 3 Key Laboratory of Exploration Technologies for Oil and Gas Resources，Ministry of Education，Jingzhou 434023，China |
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| 基金项目： | This study was funded by the 0pen Foundation Project of Key Laboratory of Exploration Technologies for 0il and Gas Resources, Ministry of Education （Grant No. K200616） and the Key Scientific Research Project of Hubei Education Bureau （Grant No. B200512001）. |
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| 摘 要： | The geochemical characteristics of natural gases discovered in the Bozhong Depression are systematically described in this paper. The natural gases are composed mainly of hydrocarbon gases. Natural gases occurring in the Paleogene and older reservoirs are wet gases, whereas those in the Neogene reservoirs are dry gases. Methane and ethane in the gases are significantly different in carbon isotopic composition. The methane carbon isotopic composition of the gases in structure BZ28-1 and the ethane carbon isotopic composition of the gases in structure QHD30-1 are characterized by the heaviest values, respectively. The natural gases are in the mature to highly mature stages. The hydrocarbon gases are of organic origin and can be classified as oil-type gases, coal-derived gases and mixed gases with the third one accounting for the major portion.
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| 关 键 词： | 中国 渤海 天然气 碳 |
| 修稿时间： | 2006-01-132006-08-30 |
Genetic classification of natural gases in the Bozhong Depression,Bohai Bay,China |
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| Tang Youjun,Wen Zhigang. Genetic classification of natural gases in the Bozhong Depression,Bohai Bay,China[J]. Chinese Journal of Geochemistry, 2007, 26(3): 325-328. DOI: 10.1007/s11631-007-0325-y |
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| Authors: | Tang Youjun Wen Zhigang |
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| Affiliation: | (1) Faculty of Resources and Information Technology, China University of Petroleum, Beijing, 100083, China;(2) Department of Geochemistry, Yangtze University, Jingzhou, 434023, China;(3) Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education, Jingzhou, 434023, China |
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| Abstract: | The geochemical characteristics of natural gases discovered in the Bozhong Depression are systematically described in this paper. The natural gases are composed mainly of hydrocarbon gases. Natural gases occurring in the Paleogene and older reservoirs are wet gases, whereas those in the Neogene reservoirs are dry gases. Methane and ethane in the gases are significantly different in carbon isotopic composition. The methane carbon isotopic composition of the gases in structure BZ28-1 and the ethane carbon isotopic composition of the gases in structure QHD30-1 are characterized by the heaviest values, respectively. The natural gases are in the mature to highly mature stages. The hydrocarbon gases are of organic origin and can be classified as oil-type gases, coal-derived gases and mixed gases with the third one accounting for the major portion. |
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| Keywords: | Bozhong Depression origin of natural gases carbon isotopic composition composition of natural gases |
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