دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the part of a groove on the drawworks drum that changes direction. Grooves run parallel to each other, except in the angle-control section, where each groove is machined at a slight angle. This angled part of the groove causes the wire rope being spooled onto the drum to change direction so that the next wrap of rope on the drum lies in between the wraps of rope already on the drum. Also called a crossover section.

n: The arcual rings in bailer, used to connect wire rope.

n: the cable attached to a bailer, passed over a sheave at the top of the derrick, and spooled on a reel.

n: The wire rope connected with bailer, winded to the drum through the pulley on the top of crown block.

n: a wire rope that has been flattened and the strands of which have been spread. v: to flatten and spread the strands of a wire rope.

n: wire rope used for hoisting that has had its wires distorted into the shape of a birdcage by a sudden release of load.

n: the large-diameter wire rope or the strands that support the boom of a crane.

n: in crane operations, a sling made from a braided wire rope.

n: a rope formed by plaiting (braiding) several strands of wire rope.

n: in crane operations, the amount of load that causes a wire rope or a sling to fail. Also called actual strength. Compare minimum acceptance strength. nominal strength.

n: a forged or cast steel fitting for a wire rope or a strand. It has a basket with adjustable bolts that secure rope ends. bridging materials n pI: the fibrous, flaky, or granular material added to a cement slurry or drilling fluid to aid in sealing formations in which lost circulation has occurred. See lost circulation, lost circulation material.