Development of a Combined Device with High Vacuum and Pulsed Discharge Gas Chromatography and Its Application in Chemical Analysis of Gases from Rock Samples
It is important to determine the chemical composition of gases trapped in rocks. The technique of using carrier gas and chemical analysis to release and collect gases is very time-consuming. There is little reported about Gas Chromatography analysis of rock degassing under high vacuum, and the total...
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| Format: | Article |
| Language: | English |
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Science Press, PR China
2017-06-01
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| Series: | Yankuang ceshi |
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| Online Access: | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.201609080137 |
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| author | LI Li-wu LIU Yan WANG Xian-bin ZHANG Ming-jie CAO Chun-hui XING Lan-tian LI Zhong-ping |
| author_facet | LI Li-wu LIU Yan WANG Xian-bin ZHANG Ming-jie CAO Chun-hui XING Lan-tian LI Zhong-ping |
| author_sort | LI Li-wu |
| collection | DOAJ |
| description | It is important to determine the chemical composition of gases trapped in rocks. The technique of using carrier gas and chemical analysis to release and collect gases is very time-consuming. There is little reported about Gas Chromatography analysis of rock degassing under high vacuum, and the total amount of gases are not commonly measured. It is difficult to analyze gases with similar molecular weights by Mass Spectrometer and because of these problems, a high vacuum rock sample degassing device has been developed. The vacuum of the device is < 10-4 Pa. The blank sample pressure is < 0.1 Pa, the accuracy for N2 in the air is 0.63%, and the minimum measurable quantity is < 1 mm3 at standard temperature and pressure. The high vacuum device is coupled with a Gas Chromatography with a pulsed discharge detector, which gives a high sensitive gas chromatographic analysis of the chemical composition of gases in rocks. The gas released from Wudalianchi volcanic rocks in the Songliao Basin reservoirs and shale samples from the Sichuan basin have been analyzed using this system. The results show that the total amount of gas released from the rock can be directly measured. Less sample weight is needed during stage heating, and gas composition analysis is more sensitive compared with the previous experimental device and method. The analyzed main component targeted is the common component in gas-released rock. |
| first_indexed | 2024-04-10T16:29:56Z |
| format | Article |
| id | doaj.art-30950e9bb5d141048856e6d4ff93a17e |
| institution | Directory Open Access Journal |
| issn | 0254-5357 |
| language | English |
| last_indexed | 2024-04-10T16:29:56Z |
| publishDate | 2017-06-01 |
| publisher | Science Press, PR China |
| record_format | Article |
| series | Yankuang ceshi |
| spelling | doaj.art-30950e9bb5d141048856e6d4ff93a17e2023-02-09T00:48:51ZengScience Press, PR ChinaYankuang ceshi0254-53572017-06-0136322223010.15898/j.cnki.11-2131/td.201609080137ykcs-36-3-222Development of a Combined Device with High Vacuum and Pulsed Discharge Gas Chromatography and Its Application in Chemical Analysis of Gases from Rock SamplesLI Li-wu0LIU Yan1WANG Xian-bin2ZHANG Ming-jie3CAO Chun-hui4XING Lan-tian5LI Zhong-ping6Key Laboratory of Petroleum Resources, Gansu Province, Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000, ChinaKey Laboratory of Petroleum Resources, Gansu Province, Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000, ChinaKey Laboratory of Petroleum Resources, Gansu Province, Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000, ChinaSchool of Earth Sciences, Lanzhou University, Lanzhou 730000, ChinaKey Laboratory of Petroleum Resources, Gansu Province, Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000, ChinaKey Laboratory of Petroleum Resources, Gansu Province, Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000, ChinaKey Laboratory of Petroleum Resources, Gansu Province, Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000, ChinaIt is important to determine the chemical composition of gases trapped in rocks. The technique of using carrier gas and chemical analysis to release and collect gases is very time-consuming. There is little reported about Gas Chromatography analysis of rock degassing under high vacuum, and the total amount of gases are not commonly measured. It is difficult to analyze gases with similar molecular weights by Mass Spectrometer and because of these problems, a high vacuum rock sample degassing device has been developed. The vacuum of the device is < 10-4 Pa. The blank sample pressure is < 0.1 Pa, the accuracy for N2 in the air is 0.63%, and the minimum measurable quantity is < 1 mm3 at standard temperature and pressure. The high vacuum device is coupled with a Gas Chromatography with a pulsed discharge detector, which gives a high sensitive gas chromatographic analysis of the chemical composition of gases in rocks. The gas released from Wudalianchi volcanic rocks in the Songliao Basin reservoirs and shale samples from the Sichuan basin have been analyzed using this system. The results show that the total amount of gas released from the rock can be directly measured. Less sample weight is needed during stage heating, and gas composition analysis is more sensitive compared with the previous experimental device and method. The analyzed main component targeted is the common component in gas-released rock.http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.201609080137high vacuum electromagnetic crushingmicro liter gasespulsed discharge detectormantle rockshale gas |
| spellingShingle | LI Li-wu LIU Yan WANG Xian-bin ZHANG Ming-jie CAO Chun-hui XING Lan-tian LI Zhong-ping Development of a Combined Device with High Vacuum and Pulsed Discharge Gas Chromatography and Its Application in Chemical Analysis of Gases from Rock Samples Yankuang ceshi high vacuum electromagnetic crushing micro liter gases pulsed discharge detector mantle rock shale gas |
| title | Development of a Combined Device with High Vacuum and Pulsed Discharge Gas Chromatography and Its Application in Chemical Analysis of Gases from Rock Samples |
| title_full | Development of a Combined Device with High Vacuum and Pulsed Discharge Gas Chromatography and Its Application in Chemical Analysis of Gases from Rock Samples |
| title_fullStr | Development of a Combined Device with High Vacuum and Pulsed Discharge Gas Chromatography and Its Application in Chemical Analysis of Gases from Rock Samples |
| title_full_unstemmed | Development of a Combined Device with High Vacuum and Pulsed Discharge Gas Chromatography and Its Application in Chemical Analysis of Gases from Rock Samples |
| title_short | Development of a Combined Device with High Vacuum and Pulsed Discharge Gas Chromatography and Its Application in Chemical Analysis of Gases from Rock Samples |
| title_sort | development of a combined device with high vacuum and pulsed discharge gas chromatography and its application in chemical analysis of gases from rock samples |
| topic | high vacuum electromagnetic crushing micro liter gases pulsed discharge detector mantle rock shale gas |
| url | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.201609080137 |
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