دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

the change in pulsed neutron capture created by acidizing a carbonate. Acidizing increases interconnected porosity and strands chlorides and other ions in the rock.

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

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

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.

n: see filter cake.

n: A tier of penetrant medium adhering to the borehole face in the filtration process of solid phase of drill fluid.

filter or mud cake, stranded by dehydration on the face of a permeable formation by fluid loss.

n: see chain drive. chain-and-sprocket drive n: a type of drive that consists of a loop of chain that goes around two shafts with sprockets fitted on the shafts. The driving shaft provides power and the driven shaft receives power. When the sprocket on the driving shaft turns, the chain moves and turns the driven sprocket. chainand- sprocket transmission n: a selective transmission made up primarily of chain-andsprocket drives. There are three two-strand chain-and-sprocket drives and a pair of gears for reversing, located between the input shaft coming from the compound, and the output shaft on a mechanically driven drawworks. Each of these chain-and- sprocket drives has a different sprocket ratio to provide three speeds to the high-drum drive and three to the low-drum drive. Com- pare gear transmission.

n: a machine that braids wires into strands and strands into rope in the manufacture of wire rope. Also called a stranding machine.

n: The machine Plaiting steel wire into rope strand and twisting rope strand into wire rope in the process of making wire rope.

n: a wire rope strand that uses two or more strand designs to form a single strand. Compare Seale strand, Warrington strand.

n: a small-diameter wire rope or strand.