| 原油溶解气中稀有气体同位素分析 |
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| 引用本文： | 曹春辉,李中平,杜丽,李立武.原油溶解气中稀有气体同位素分析[J].分析仪器,2014(6):12-16. |
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| 作者姓名： | 曹春辉 李中平 杜丽 李立武 |
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| 作者单位： | 甘肃省油气资源研究重点实验室，中国科学院地质与地球物理研究所兰州油气资源研究中心，中国科学院油气资源研究重点实验室，兰州 730000 |
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| 摘 要： | 国内稀有气体同位素分析技术主要应用于分析天然气和固体矿物样品。原油样品采集易受空气污染，并且挥发性有机组分严重影响分析结果。本实验利用压力差设计了一种顺压采样器，以排除空气；采用真空－超声波脱气；通过两级纯化系统，实现溶解气活性组分的完全去除，降低对超高真空仪器Noblesse的污染。结果表明：原油脱气效率达99．5％以上；同位素分析的相对标准偏差＜6．10％。顺压采样器及两级纯化系统的提出，实现了原油稀有气体分析。
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| 关 键 词： | 稀有气体同位素 原油 脱气 纯化 分析方法 |
Analysis of rare gas isotope in crude oil |
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| Cao Chunhui,Li Zhongping,Du Li,Li Liwu.Analysis of rare gas isotope in crude oil[J].Analytical Instrumentation,2014(6):12-16. |
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| Authors: | Cao Chunhui Li Zhongping Du Li Li Liwu |
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| Affiliation: | (Gansu Provincial Key Laboratory Of Petroleum Resources, Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of＂ Sciences Lanzhou 730000,China) |
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| Abstract: | Rare gas isotope analysis technology is mainly applied to the samples of natural gases and solid minerals .Crude oil sample is easily polluted by air ,and volatile organic components seriously influ‐ence the analytical results .We designed a new sampler to eliminate air pollution ;vacuum‐ultrasonic tech‐nology was used for crude oil degassing ;two levels of purification system can remove the active gas compo‐nents ,and reduce the pollution of the ultra‐high vacuum apparatus‐Noblesse .T he results show ed that the crude oil degassing efficiency was above 99 .5% ; relative standard deviation of isotope analysis w as ＆lt;6.10% . |
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| Keywords: | rare gas isotope crude oil degassing purification Noblesse analytical method |
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