摘要
在模拟孔底冲击回转钻进条件的试验台上 ,对岩石的冲击回转碎岩机理进行了试验研究 ,提出了大直径潜孔钻头的合理布齿及钻进参数选择依据。
Laboratory research on the percussive rotary rock fragmentation mechanism have been carried out on the down hole percussive rotary testing bench which simulated the real down-hole situations. The basis for DTH hammer bit insert arrangement and drilling parameter selection presented.
出处
《探矿工程》
2001年第4期62-64,共3页
Exploration Engineering(Drilling & Tunneling)
基金
原地矿部科技开发项目 (开 90 2 1)
关键词
冲击回转
潜孔锤
钻头
球齿硬质合金
最优冲击间隔
碎岩机理
percussive rotary
large diameter rock socket
DTH hammer
tungsten carbide button
optimum percussive interval
bit pressure
