The heavy three-, four-, or six-sided length of pipe suspended from the swivel through the rotary table and connected to the topmost joint of drill pipe to turn the drill stem as the rotary table turns is called the ________.
A
swivel
B
bail
C
kelly
D
cock
E
İlgili Sorular
In illustration D002DG, item number 21 is the __________.When daylight savings time is kept, the times of tide and current calculations must be adjusted. On...The SS AMERICAN MARINER is ready to bunker with drafts of FWD 14'-06", AFT 17'-00". After all bunker...On the DEEP DRILLER, to use the drill water pump to supplement the bilge pumps, it is necessary to...Which logbook is required to be submitted to the Coast Guard?