دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n pI: slips for drill pipe that fit into the tapered insert bowl of a four-pin master bushing and whose taper length is 12� inches (324 millimetres) long. Compare long rotary slips. See also master bushing, slips.

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: an arrangement of special hooks that fit into receptacles in a master bushing or an insert bowl and chains or wire rope that are connected to a rigs air hoist, all of which enables crew members to insert or remove the master bushing and insert bowls as required.

n: a procedure to determine whether the slips inserts (dies) are unifOrn1ly contacting the wall of the drill pipe. Paper is wrapped around the pipe and the slips are set. The paper is then unwrapped from die pipe and the pattern the slips made on the paper is examined. If uniform contact is not shown, the slips inserts are replaced or the insert bowl is repaired or replaced.

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 pipeline, plant, refinery, or other installation in which the fluid in the installation exists as a gas (vapor) and a liquid. two-piece insert howl n: see insert bowl.