Fit the rig tongs with the correct jaws for the drill pipetool joint or the drill collar. Re-install the safety lock springs.
给大钳装上与钻杆接头或钻铤相匹配的钳头，再装上安全锁簧。
2
Due to the increasing number of deep Wells and directional Wells being drilled, longitudinal fracture occurred on the box-ended drill pipetool joint is often reported.
近年来由于深井、定向井等逐渐增多，油气井钻井中钻杆内螺纹接头纵向开裂失效成为常发事故。
3
Another alternative for copying directories between systems is to use the pipe solution shown in Listing 16, but then use a remote shell tool as the destination.