摘要
提出了 4种解决坑道中钻进超硬岩层时出现的钻头不进尺难题 ,即调换钻头法、腐蚀法、投砂法、选用弱包镶钻头法 ,这些方法的采用有利于提高钻进效率 ,增加经济效益。
Four methods like changing bit, corrosion, gravel packing and choosing weak mosaic bit are proposed to solve the difficult problem of no headway during super hard-rock drilling in gallery. Using these methods can increase drilling efficiency and economic benefit.
出处
《地质与勘探》
CAS
CSCD
北大核心
2001年第4期81-82,共2页
Geology and Exploration
