دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: wearing away by friction.

a form of mechanical weathering where loose fragments are transported with water or wind.

wearing away by friction.

n: the technique for covering a completed pipeline so that adequate fill materal is provided underneath the pipe as well as above it. Backfilling prevents pipe damage caused by loose rock, abrasion, shifting, and washouts.

n: The commercial artificial diamond. It is a ball composed by more or least radiated slender crystal of diamond. There is no obvious cleavage face. It has high abrasion resistance and mainly is used for manufacturing diamond tool.

a sintered aluminum based proppant with very high strength, 3.2 g/cc density and high abrasion characteristics.

n: a tubing sub made of abrasionresistant material. It is used in a tubing string where high-velocity flow through perforations may cause external erosion.

an abrasion and erosion resistant tube that is run where ever direct sand impingement is a problem.

n: a section of the lining of a brake band shaped to conform to the curvature of the band and attached to it with countersunk screws. See brake band.

n: The heatproof, abrasion proof, and high friction coefficient blocklike component part. Made by material pressure stencil or plait pressure stenci. Fixed in the inner surface with head screw. The friction produced by contact of brake drum when working.

n: a centrifugal device for removing sand from drilling fluid to prevent abrasion of the pumps. It may be operated mechanically or by a fast-moving stream of fluid inside a special cone-shaped vessel, in which case it is sometimes called a hydrocyclone. Compare desiller.

n: A centrifugal device for removing sand from the drilling mud.