摘要
为了满足选冶试验矿样质量的需要,刚果(金)Sicomines铜钴矿区选用了大口径取心(≥Φ325 mm)钻探工艺。实际应用表明,针对完整或破碎地层条件选用不同的筒状钻具及取心工艺是大口径取心工程成功的关键。
In order to meet the needs in quality of core sample for the beneficiation and metallurgy test,the coring drilling technology with large diameter（≥325mm） tubular was used in Sicomines copper-cobalt mining area.The key to the success in the large diameter coring project lies on selecting different tubular-shaped drilling tools and coring technologies according to the condition of complete or broken formation.
出处
《探矿工程（岩土钻掘工程）》
2011年第9期46-48,共3页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
大口径
取心钻探
筒状钻具
large diameter
coring drilling
tubular-shaped drilling tool
