| A study on the geochemical characteristics of natural gas and gas sources in the Bozhong sag |
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| 引用本文： | WEN Zhigang TANG Youjun LI Fuping CHEN Dan MI Lijun XUE Yongan. A study on the geochemical characteristics of natural gas and gas sources in the Bozhong sag[J]. 中国地球化学学报, 2007, 26(4): 402-406. DOI: 10.1007/s11631-007-0402-2 |
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| 作者姓名： | WEN Zhigang TANG Youjun LI Fuping CHEN Dan MI Lijun XUE Yongan |
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| 作者单位： | [1]Department of Geochemistry, Yangtze University; Jingzhou 434023, China [2]Key Laboratory of Exploration Technologies for Oil and Gas Resources （Yangtze University）, Ministry of Education, Jingzhou 434023 , China [3]Bohai Institute of CNOOC Research Center, Tianjin 340452, China |
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| 基金项目： | Acknowledgements The research project is supported by Research Center of CN00C. |
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| 摘 要： | Natural gas is composed largely of hydrocarbon gas, especially wet gas in the Bozhong sag. The carbon isotopic composition shows that the gas is of organic origin. The carbon isotopic values of ethane indicate that the natural gas is dominated by mixed gas with minor coal-generated gas and oil-type gas. A gas-source correlation study showed that the source rocks of natural gas are those of the Lower Dongying Formation, the Shahejie Formation and the pre-Tertiary. The natural gas is characterized by multi-source and continuous generation in the study area, indicating that gas exploration potential is good in the Bozhong sag.
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| 关 键 词： | 天然气 碳同位素 天然气开采 探测方法 |
| 收稿时间： | 2006-05-10 |
| 修稿时间： | 2006-05-10 |
A study on the geochemical characteristics of natural gas and gas sources in the Bozhong sag |
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| Wen Zhigang,Tang Youjun,Li Fuping,Chen Dan,Mi Lijun,Xue Yongan. A study on the geochemical characteristics of natural gas and gas sources in the Bozhong sag[J]. Chinese Journal of Geochemistry, 2007, 26(4): 402-406. DOI: 10.1007/s11631-007-0402-2 |
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| Authors: | Wen Zhigang Tang Youjun Li Fuping Chen Dan Mi Lijun Xue Yongan |
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| Affiliation: | Yangtze University |
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| Abstract: | Natural gas is composed largely of hydrocarbon gas, especially wet gas in the Bozhong sag. The carbon isotopic composition shows that the gas is of organic origin. The carbon isotopic values of ethane indicate that the natural gas is dominated by mixed gas with minor coal-generated gas and oil-type gas. A gas-source correlation study showed that the source rocks of natural gas are those of the Lower Dongying Formation, the Shahejie Formation and the pre-Tertiary. The natural gas is characterized by multi-source and continuous generation in the study area, indicating that gas exploration potential is good in the Bozhong sag. |
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| Keywords: | Bozhong sag natural gas carbon isotope gas-source correlation |
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