摘要
针对坚硬致密＂打滑＂地层研制了一种新型自锐金刚石钻头。室内微钻试验及现场钻进试验均表明：在钻进极坚硬致密＂打滑＂地层时,相对于普通金刚石钻头,新型自锐金刚石钻头可提高钻头机械钻速1~3倍,且钻头寿命相对较高,为攻克＂打滑＂地层提供了一种有效的碎岩钻进工具。
According to the difficulties in hard-compact-slipping formation drilling,a new type self-sharpening diamond bit is introduced about its design and the effects of indoor and outdoor tests. The indoor micro-drilling experiments and the field drilling tests show that comparing with ordinary diamond bit,this new self-sharpening one can improve ROP 1-3 times with relatively high bit service life and it is an effective rock breaking tool for hard-compact-slipping formation drilling.
出处
《探矿工程（岩土钻掘工程）》
2014年第11期57-59,共3页
Exploration Engineering:Rock & Soil Drilling and Tunneling
基金
中国地质调查局地质调查项目"重点成矿带碎岩与取心技术研究与应用示范"(12120113097300)
关键词
坚硬致密“打滑”地层
自锐
金刚石钻头
机械钻速
钻头寿命
hard-compact-slipping formation
self-sharpening
diamond bit
rate of penetration（ROP）
bit life
