دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: an antifriction device of rubber or steel attached to each joint of drill pipe to minimize wear.

n: the rubber protection valve on whose outskirt there are several flowpath trough which benefits the fluid flowing

n: refer to full-flo super grip lace -on drill pipe protector.

n: protector that some pieces steel bdlts through sulfurizing are buckled on drill pipe and it is fixed with pin.

n: prevents drill pipe from rubbing against the hole or against the casing. The pins are press-fitted into the side bars (pin link plates).

n: see protector of drill pipe.