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
By convention, the south pole of a magnet is painted __________.When discharging cargo from a tank barge, in which case may the cargo pass through or over the towin...You wish to measure the distance on a Mercator chart between a point in latitude 42°30'N and a point...The Milky Way is an example of a __________.Control of fire on a MODU should be addressed _____________.