دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the formation and collapse of vapour gas-filled cavities that result from a sudden decrease and increase of pressure. Cavitation can cause mechanical damage to adjacent surfaces in meters, valves, pumps, and pipes at locations where flowing liquid encounters a restriction or change in direction.

the creating of a high speed, very low pressure vapor bubble that quickly and violently collapses. Very detrimental to surfaces in the near proximity. Often seen in severe turbulent flow.

pressure-controlling choke components, usually replaceable, expendable pieces.

n: Trimming the core to satisfy the demand of test.

n: a powerful, highly explosive material (cyclo-trimethylene-trinitramine) used as the main charge in jet perforating guns. Also called RDX. See jet-perforate.

another name for RDX explosive.

n: The ratio between permeability of non-detrimental formation and permeability of detrimental formation. It is a target of measuring extent of damage of formation.

n: See useless solids.

n: see trim.

n: a kids of organic phosphate, it uses as drilling diluent.

n: see cyclonite.

perforating charge explosive. Cyclotrimethaylenetrinitramine.

a reaction of an elastomer seal by absorbing gas or a liquid and increasing its volume. May or may not be detrimental.