摘要
在碎块石、漂卵石地层中钻探,不可盲目追求钻孔进尺,且深孔钻探时新旧套管不宜混用,要严格控制钻孔偏斜。
Drilling in breakstone or pebble, We should not run after drilling depth blindly, And we can not ust the old casing pipe and the new casing pipe in the same time when we drill in deep drill hole, we must strictly control to drill slanting.
出处
《电力勘测设计》
2007年第5期19-21,共3页
Electric Power Survey & Design
关键词
碎块石
漂卵石层
钻探
工效
经验
breakstone
pebble
drill
work efficiency
experience.
