| 湖南沅陵官庄金矿大斜度钻孔施工工艺 |
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| 引用本文： | 胡家农,余异非.湖南沅陵官庄金矿大斜度钻孔施工工艺[J].探矿工程,2009,36(3):4-6. |
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| 作者姓名： | 胡家农 余异非 |
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| 作者单位： | [1]中国地质大学武汉,湖北武汉430074; [2]湖南省地勘局407地质队,湖南怀化418000 |
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| 摘 要： | 根据沅陵官庄金矿区施工钻孔要求斜度大（最小45°）、矿区岩层岩性复杂、钻进中常遇10-70 m厚破碎带、有较大漏失现象、掉块比较严重、有时有轻微坍塌等情况,有针对性地进行钻头选用、施工工艺选择,并对泥浆配置技术、配制工艺进行研究应用,有效地减少了孔内事故的发生,满足了岩（矿）心采取率要求,大大提高了台月效率。
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| 关 键 词： | 大斜度钻孔 钻进工艺 钻头 泥浆 官庄金矿区 |
| 收稿时间： | 2008/12/11 0:00:00 |
| 修稿时间： | 2009/2/26 0:00:00 |
Drilling Technology of Large-angle Borehole in Guanzhuang Gold Mine of Hunan |
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| HU Jia-nong and YU Yi-fei.Drilling Technology of Large-angle Borehole in Guanzhuang Gold Mine of Hunan[J].Exploration Engineering(Drilling & Tunneling),2009,36(3):4-6. |
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| Authors: | HU Jia-nong and YU Yi-fei |
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| Institution: | HU Jia-nong, YU Yi-fei ( 1. China University of Geoscienees, Wuhan Hubei 430074, China; 2. No. 407 Geological Team of Hunan Geological Prospecting Bureau, Hualhua Hunan 418000, China) |
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| Abstract: | The borehole of Guanzhuang gold field in Yuanfing was drilled with high inclination（45°）, complex rock lithology, 10 -70m fracture zone, serious leakage and block-falling. Drilling bit, construction technology, mud configuration and confection process were studied and selected to avoid the accidence in borehole with satisfied core recovery and increased drilling efficiency. |
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| Keywords: | large-angle borehole drilling technology drilling bit drilling mud Guanzhuang gold field |
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