دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n pi: the equipment included in the drilling fluid circulating system of a rotary rig. Basically, the components consist of the mud pump, the rotary hose, the swivel, the drill stem, the bit, and the mud return line.

n: Mainly including mud pump, revolving drilling hose, swivel, drill string, bit and mud return line.