| 祁连山冻土区天然气水合物激光拉曼光谱特征 |
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| 引用本文： | 孟庆国,刘昌岭,贺行良,业渝光,祝有海,夏 宁. 祁连山冻土区天然气水合物激光拉曼光谱特征[J]. 地质通报, 2011, 30(12): 1863-1867 |
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| 作者姓名： | 孟庆国 刘昌岭 贺行良 业渝光 祝有海 夏 宁 |
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| 作者单位： | 1. 国土资源部海洋油气资源与环境地质重点实验室，山东 青岛 266071；2. 中国地质调查局青岛海洋地质研究所，山东 青岛 266071；3. 中国地质科学院矿产资源研究所,北京 100037 |
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| 基金项目： | 中国地质调查局项目《青藏高原冻土带天然气水合物调查评价》(编号:1212010818055); 国家自然科学基金项目《祁连山冻土区天然气水合物的结构特征及其控制因素》(编号:41072037) |
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| 摘 要： | 采用显微激光拉曼光谱技术在77K和常压下对祁连山木里煤田聚乎更矿区钻获的冻土区天然气水合物进行了测试，得到中国冻土区天然气水合物典型的激光拉曼谱图，从微观角度证实DK3孔的133.30m、139.52~139.92m和141.00m 3段不同埋深的岩心中均有天然气水合物存在。对冻土区水合物的拉曼谱图进行详细研究，结合文献资料，初步判定3段不同埋深的水合物结构均为sⅡ型，并参照不同客体气体分子的特征振动信号对谱线的归属进行分析，得出了水合物中大致所含的气体组分。
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| 关 键 词： | 天然气水合物；显微激光拉曼光谱；祁连山冻土区 |
Laser-Raman spectroscopy characteristics of natural gas hydrates from Qilian Mountain permafrost |
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| MENG Qing-guo,LIU Chang-ling,HE Xing-liang,YE Yu-guang,ZHU You-hai,XIA Ning. Laser-Raman spectroscopy characteristics of natural gas hydrates from Qilian Mountain permafrost[J]. Geologcal Bulletin of China, 2011, 30(12): 1863-1867 |
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| Authors: | MENG Qing-guo LIU Chang-ling HE Xing-liang YE Yu-guang ZHU You-hai XIA Ning |
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| Affiliation: | MENG Qing-guo1,2,LIU Chang-ling1,HE Xing-liang1,YE Yu-guang1,ZHU You-hai3,XIA Ning1,21.Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology,Ministry of Land and Resources,Qingdao 266071,Shandong,China,2.Qingdao Institute of Marine Geology,China Geological Survey,3.Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing 100037 |
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| Abstract: | Natural gas hydrates recovered from the Juhugeng ore district in the Muli coalfield of the Qilian Mountain were investigated by micro-Raman spectroscopy at 77K and ambient pressure,and the representative Raman spectra of the natural gas hydrates in the permafrost were obtained.The measurements prove the existence of hydrates at the depths of 133.30m,139.52~139.92m and 141.00m in the hole of DK3.Based on a detailed analysis of the Raman spectra and consulting the literatures available,the authors preliminari... |
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| Keywords: | natural gas hydrate laser micro-Raman spectroscopy Qilian Mountain permafrost |
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