| 干冰升华式孔底冷冻取样器冷源保冷方法的试验研究 |
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| 引用本文： | 郭威,孙友宏,陈晨,赵江鹏,赵建国.干冰升华式孔底冷冻取样器冷源保冷方法的试验研究[J].探矿工程(岩土钻掘工程),2009,36(9):5-6,10. |
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| 作者姓名： | 郭威 孙友宏 陈晨 赵江鹏 赵建国 |
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| 作者单位： | 吉林大学建设工程学院,吉林,长春,130026 |
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| 基金项目： | 科技部国际合作与交流专项"天然气水合物孔底冷冻取样方法及取样器的研究"，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"，中国地质大学(北京)科学钻探国家专业实验室开放课题"GHFS-110型天然气水合物孔底冷冻取样器的研制" |
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| 摘 要： | 针对已研制的天然气水合物孔底冷冻取样器,为进一步提高取样器干冰冷源的保冷效果,提出干冰冷源双层保冷方法.通过试验研究,证明干冰冷源双层保冷方法可大幅度提高干冰在井内的保存时间,可以将此方法应用于取样器的设计.
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| 关 键 词： | 天然气水合物 孔底冷冻取样器 干冰 保冷方法 |
| 修稿时间： | 6/3/2009 12:00:00 AM |
Experimental Study on Cold Source Insulation Method for Gas Hydrates with Dry Ice Sublimation Hole Bottom Freezing Sampler |
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| guowei,SUN You-hong,CHEN Chen,ZHAO Jiang-peng and ZHAO Jian-guo.Experimental Study on Cold Source Insulation Method for Gas Hydrates with Dry Ice Sublimation Hole Bottom Freezing Sampler[J].Exploration Engineering:Rock & Soil Drilling and Tunneling,2009,36(9):5-6,10. |
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| Authors: | guowei SUN You-hong CHEN Chen ZHAO Jiang-peng and ZHAO Jian-guo |
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| Affiliation: | College of construction Engineering, Jilin University,College of Construction Engineering, Jilin University,College of Construction Engineering, Jilin University,College of Construction Engineering, Jilin University and College of Construction Engineering, Jilin University |
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| Abstract: | In order to improve the cold insulation effect of dry ice cold source of sampler, double-layer cold insulation method for dry ice cold source was put forward. It was proved by experiment that double layer cold insulation method for dry ice cold source could greatly prolong preservation time of dry ice in the hole bottom, and this method can be applied in the sampler design. |
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| Keywords: | gas hydrates hole bottom freezing sampler dry ice cold insulation method |
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