湖南沅陵官庄金矿大斜度钻孔施工工艺 |
投稿时间:2008-12-11 修订日期:2009-02-26 点此下载全文 |
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].钻探工程,2009,36(3):4-6.HU Jia-nong,YU Yi-fei. Drilling Technology of Large-angle Borehole in Guanzhuang Gold Mine of Hunan[J]. Drilling Engineering, 2009,36(3):4-6. |
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中文摘要: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。 |
中文关键词:大斜度钻孔 钻进工艺 钻头 泥浆 官庄金矿区 |
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Drilling Technology of Large-angle Borehole in Guanzhuang Gold Mine of Hunan |
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Abstract:The borehole of Guanzhuang gold field in Yuanling 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. |
keywords:large-angle borehole drilling technology drilling bit drilling mud Guanzhuang gold field |
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