квадрат добурил(On kelly rigs, when the square stand "kelly" drills down to rig floor, people say "kelly down" or "квадрат добурил". This phrase is the standard today, even though many work on top drive rigs. gz1968)
верхний клапан ведущей трубы(a valve installed above the kelly that can be closed manually to protect the rotary hose from high pressure that may exist in the drill stem. paderin)