1. 钻杆：钻井液(drilling fluid/mud)通过钻杆(drill pipe)内部泵入钻头,作用包括冷却(cooling)钻头、提升钻屑(drill cuttings)、避免井壁(wellbore wall)不稳定以及避免岩层液体由于压力进入井眼.
2. 钻管：於是德拉克研究如何挖土掘地,终於发明所谓铁管钻井法的钻井装置(drolling dig),就是一种以铁制钻管(drill pipe),由转台(rotary table)旋转深入地中,前端有钻头(bit),其上有钻铤(drilI collar),就这样他成功的以较现代化的工程法采得石油.
3. 钻探管：drill jig bushing钻套 | drill pipe钻探管 | drill press钻床
4. 钻管(钻油台)：鼓级(涡轮机) drum stage | 钻管(钻油台) drill pipe | 钻头(钻油台) drill collar
1. The USITC did not specify the combined value of imported drill pipe and drill collars from China in the statement.
2. A fire ensued after a gas pipe was accidentally punctured by a drill during maintenance on fire control facilities.
3. The investigation covers heavyweight drill pipe and drill collars of iron or steel used to drill oil wells.
4. An iron wire was found attached at the end of a drill pipe when it was lifted to the surface at 3 pm.
5. A giant hammer drill was set with an even larger bit, and holes bored for the plugs for the pipe.