A set of clamps that are latched onto the drill pipe to allow the driller to raise or lower the drill string out of or into the hole are the _________________.
A
lifts
B
collars
C
elevators
D
clamps
E
İlgili Sorular
The smallest size of flaw that can be detected on a radiograph examination of a weld will be indicat...How many litres of water per person must be carried in lifeboats on a tankship sailing a coastwise ...The Coast Guard determines how many passengers are permitted§on a "T-Boat" by applying the _________...On the COASTAL DRILLER, in case the bilge discharge is oily, the bilge water should be discharged th...BOTH INTERNATIONAL & INLAND Which vessel is, by definition, unable to keep out of the way of another...