摘要
洛宁程家沟-沙沟银多金属矿区矿床产状陡,矿体集中,钻探设计多为分支孔,钻孔中深、斜度大。如何要在保证效益的情况下确保钻孔质量成为关键技术。通过1550 m斜孔施工实例,介绍了矿区中深斜孔钻探工艺的选择及保证钻孔弯曲度的具体措施。
The occurrence is steep with ore concentrating in Chengjiagou-Shagou silver polymetallic ore deposit. Because drilling designs are mostly branch holes with medium depth and large slope, the borehole quality is the key technology. By the construction case of 1550m inclined hole, the paper introduces the selection of medium-depth inclined hole drilling technology and the concrete measures for ensuring drilling hole curvature.
出处
《探矿工程（岩土钻掘工程）》
2013年第9期9-13,共5页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
中深斜孔
钻塔改装
冲洗液
钻孔弯曲度
medium-depth inclined hole
drill tower modification
flushing fluid
borehole curvature
