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| 引用本文： | 陶成,杨华敏,刘文汇.?λ????????????????He?????????λ?????[J].质谱学报,2014,35(2):138-143. |
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| 作者姓名： | 陶成 杨华敏 刘文汇 |
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| 作者单位： | 1.?й?????????????о?????????????? ????730000??2.?й??????????????100049??3.?й??????????????о?????????????о????????? ????214151 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)项目(2012CB214801)资助 |
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| 摘 要： | ????????????????????????崿??????????????????λ?????????????????????????????????????????????????????????????????He?????????λ????ɡ??????????????????????????????????????в??????????η?????He???????λ?????????????????He????????????????????????2.9%??5%?????????н?????????????????????????????????????????nobless?????????????????VG5400??????????????????????????????????????Χ??????÷??????????????????????????????????????He???????λ??????????????????Ч??????????????????
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| 关 键 词： | ????? ????He?? ??????? ?λ????? |
Analysis of Helium Abundance and Isotope Composition in Natural Gas by Isotopic Mass Spectrometry |
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| TAO Cheng,YANG Hua-min,LIU Wen-hui.Analysis of Helium Abundance and Isotope Composition in Natural Gas by Isotopic Mass Spectrometry[J].Journal of Chinese Mass Spectrometry Society,2014,35(2):138-143. |
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| Authors: | TAO Cheng YANG Hua-min LIU Wen-hui |
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| Affiliation: | 1.Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000, China; 2.University of Chinese Academy of Science, Beijing 100049, China;3.Wuxi Institute of Petroleum Geology, Exploration and Production Research Institute, SINOPEC, Wuxi 214151, China |
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| Abstract: | A noble gas purification and concentrating line designed was coupled to mass spectrometer for the analysis of helium（He） abundance and isotope composition in natural gas. Confirmed the same procedures between air standard and natural gas, the measurement results was calculated by the relative peak height proportion. The air sample from Wuxi Huisan as lab’s working standard was measured repeatedly with the different sample amount. The analystical results obtain agree well with the recommended value, the relative standard deviation of He content and isotope ratio are 2.9% and 5%， respectively. The resuts show that the system has good accuracy and reproducibility. The He isotope ratio achieved by this system is consistent with VG5400 mass spectrometer, deviation is less than 10%. The natural gas in Tahe oilfield is measured by this method, the results show that He isotopic composition and its concentration are effective indicator for the hydrocarbon migration. |
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| Keywords: | natural gas helium（He） purification and concentration isotope composition |
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