| 河南某地热井管挤毁事故分析及处理 |
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| 引用本文： | 张秋冬,卢予北,吴青松,赵建粮.河南某地热井管挤毁事故分析及处理[J].探矿工程,2009,36(3):18-20. |
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| 作者姓名： | 张秋冬 卢予北 吴青松 赵建粮 |
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| 作者单位： | [1]中国地质大学武汉,湖北武汉430074; [2]河南省地矿局第二水文地质工程地质队,河南郑州450053 |
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| 摘 要： | 中原地区地热井成井中使用的过滤管大多为桥式过滤管,在下管过程中,如果泥浆性能不均匀或者管内灌浆不及时等,使得管内外压力不平衡,而当该压力超过过滤管的抗挤强度后就容易造成过滤管挤毁事故的发生。针对河南某地热井下管中发生的过滤管挤毁事故,分析造成该类事故的原因及在成井过程中应注意的问题。
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| 关 键 词： | 地热井 过滤管 挤毁事故 |
| 收稿时间： | 2008/12/31 0:00:00 |
Analysis and Treatmenton a Collapse Accident of Geothermal Well Pipe in Henan |
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| ZHANG Qiu-dong,LU Yu-bei,WU Qing-song and ZHAO Jian-liang.Analysis and Treatmenton a Collapse Accident of Geothermal Well Pipe in Henan[J].Exploration Engineering(Drilling & Tunneling),2009,36(3):18-20. |
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| Authors: | ZHANG Qiu-dong LU Yu-bei WU Qing-song and ZHAO Jian-liang |
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| Institution: | ZHANG Qiu-dong, LU Yu-bei, WU Qing-song, ZHAO Jian-liang ( 1. China University of C, eoseiences, Wuhan Hubei 430074, China; 2. No. 2 Team of Hydrogeology ＆ Engineering Geology, Henan Provincial Bureau of Geo-exploration and Mineral Development, Zhengzhou Henan 450053, China) |
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| Abstract: | Most of the filter pipes used in geothermal well in the central plains area is bridge ones. During pipe lowering, the pressures inside and outside the pipe would be unbalanced with unsteady mud property and not-in-time grouting; and collapse accident would occur with overpressure. Analysis was made on a collapse accident of filter pipe lowering in geothermal well in Henan. |
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| Keywords: | geothermal well filter pipe collapse accident |
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