دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a blowout preventer that uses pipe rams as the closing elements. See pipe ram.

n: the preventer that fitted with tube ram as the seal part.

n: the act of ensuring that a pipe ram preventer will not close on a drill pipe tool joint when the drill stem is stationary. A pup joint is made up in the drill string to Iengthen it sufficiently. v: to position the correct number of feet (or metres) or joints of pipe from the packer to the surface tree, or from the rig floor to the blowout preventer stack.