دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a two-piece master bushing that has a jointed, swinging device (a hinge) on each half into which large pins fit to hold the bushing together. A two-piece insert bowl to hold the slips fits inside this type of master ooshing. Compare solid master bushing, split master bushing. See also insert bowl, master bushing, slips. In.B abbr: hydrophilic-lipophilic balance.

n: a two-piece steel device with a tapered interior surface that fits into a onepiece or a hinged master bushing. It provides a place in the master bushing for crew members to set the slips. See master bushing, slips.

n: a master bushing made in one piece. Usually, solid master bushings have split insert bowls. Compare hinged master bushing, split master bushing. See also insert bowl, master bushing.

n: a master bushing that is made in two pieces. Each half has a tapered surface to accept the slips. Compare hinged master bushing, solid master bushing. See also master bushing, slips.