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。
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.
出处
《探矿工程（岩土钻掘工程）》
2009年第3期4-6,共3页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
大斜度钻孔
钻进工艺
钻头
泥浆
官庄金矿区
large-angle borehole
drilling technology
drilling bit
drilling mud
Guanzhuang gold field
