| 青海木里冻土区水合物稳定带的特征研究——模拟与钻探结果对比 |
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| 引用本文： | 金春爽,乔德武,卢振权,祝有海,张永勤,文怀军,李永红,王平康,黄霞.青海木里冻土区水合物稳定带的特征研究——模拟与钻探结果对比[J].地球物理学报,2011,54(1):173-181. |
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| 作者姓名： | 金春爽 乔德武 卢振权 祝有海 张永勤 文怀军 李永红 王平康 黄霞 |
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| 作者单位： | 1. 国土资源部油气资源战略研究中心,北京 100034;
2. 中国地质科学院矿产资源研究所,北京 100037;
3. 中国地质科学院勘探技术研究所, 廊坊 065000;
4. 青海煤炭地质105勘探队,西宁 810007 |
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| 基金项目： | 国家重点基础研究发展计划项目，国家自然科学基金项目，中国地质大调查项目，中央公益性科研院所基本科研业务费专项基金项目 |
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| 摘 要： | 基于青海木里冻土区的气体组成、钻孔泥浆的温度测量数据等对该区水合物稳定带的顶底深度进行了模拟计算,并将计算结果与钻探揭示的水合物产出深度进行了对比.模拟计算的水合物顶深在148.8～122.7 m 间,底深在324.6～354.8 m间,水合物厚度在175.8～232.2 m间,钻探揭示水合物及其异常产出在133～39...
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| 关 键 词： | 水合物稳定带 模拟 冻土 木里 青海 |
| 收稿时间： | 2010-04-19 |
Study on the characteristics of gas hydrate stability zone in the Muli permafrost,Qinghai-comparison between the modeling and drilling results |
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| JIN Chun-Shuang,QIAO De-Wu,LU Zhen-Quan,ZHU You-Hai,ZHANG Yong-Qin,WEN Huai-Jun,LI Yong-Hong,WANG Ping-Kang,HUANG Xia.Study on the characteristics of gas hydrate stability zone in the Muli permafrost,Qinghai-comparison between the modeling and drilling results[J].Chinese Journal of Geophysics,2011,54(1):173-181. |
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| Authors: | JIN Chun-Shuang QIAO De-Wu LU Zhen-Quan ZHU You-Hai ZHANG Yong-Qin WEN Huai-Jun LI Yong-Hong WANG Ping-Kang HUANG Xia |
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| Institution: | 1. Strategic Research Center for Oil and Gas Resources, Ministry of Land and Resources, Beijing 100034, China;
2. Institute of Mineral Resources, CAGS, Beijing 100037, China;
3. Institute of Exploration Techniques, CAGS, Langfang of Hebei 065000, China;
4. Qinghai No.105 Coal Geological Exploration Team, Xining 810007, China |
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| Abstract: | Based on gas composition and temperature measurements in the course of field drilling, the upper and lower depths of gas hydrate stability zone are calculated by modeling in the Muli permafrost, Qinghai, then the modeling results are compared with the drilling results. The modeling results show that the upper depth of gas hydrate stability zone is 148.8~122.7 m and the lower depth of gas hydrate stability zone is 324.6~354.8 m, with the thickness of gas hydrate stability zone of 175.8~232.2 m; the drilling results indicate that gas hydrate and its related indications occur at the interval of 133~396 m. These two types of results are comparable and thus are basically accordant, suggesting that the modeling can serve as a prediction of the upper and lower depths of gas hydrate stability zone. Gas composition, depth of permafrost, thermal gradients above and below the base of permafrost are sensitive factors affecting the upper and lower depths of gas hydrate stability zone in the Muli permafrost. |
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| Keywords: | Gas hydrate stability zone Modeling Permafrost Muli Qinghai |
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