| 深井“飞管止水”法处理下管事故实例分析 |
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| 引用本文： | 文小元.深井“飞管止水”法处理下管事故实例分析[J].甘肃地质学报,2010,19(2):88-90. |
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| 作者姓名： | 文小元 |
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| 作者单位： | 甘肃省地矿局水文地质工程地质勘察院,甘肃张掖734000 |
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| 摘 要： | 甘肃地矿局水勘院水文工程公司承担的甘肃能源基地地下水资源Q2勘查钻孔施工任务,在用准311钻具二开钻进到500.00m后下准273井管时,发生井管遇阻被卡事故。井管下到孔深395m处,既不能提升,又不能下到预定深度500m的位置。经过认真分析后,采用"飞管止水"法成功处理井管事故,最终使Q2井达到设计要求,圆满完成施工任务。
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| 关 键 词： | 深井下管事故 “飞管止水” 井身结构 施工工艺 |
EXAMPLE ANALYSIS OF TREATMENT FOT CASING-DOWN ACCIDENT BY MEANS OF SECOND-DROPPING CASING IN THE DEEP HOLE |
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| WEN Xiao-yuan.EXAMPLE ANALYSIS OF TREATMENT FOT CASING-DOWN ACCIDENT BY MEANS OF SECOND-DROPPING CASING IN THE DEEP HOLE[J].Acta Geologica Gansu,2010,19(2):88-90. |
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| Authors: | WEN Xiao-yuan |
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| Institution: | WEN Xiao-yuan (Institute of Hydrogeology and Engineering Geology Exploration, Gansu Provincial Bureau of Geology and Mineral Exploration and Development, Zhangye 734000, China) |
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| Abstract: | The accident took place in the process of casing down into Q2 borehole which is an exploration and exploitation hole. Casing pipe which was designed to seat at the place of 500m deep blocked at the depth of 395m without moving up and down. The paper introduced the treatment of this accident by means of seconddropping casing in the deep hole. |
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| Keywords: | casing down accident hole structure second-dropping casing construction technique |
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