دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a surge of engine speed to a higher number of revolutions per minute (rpm),followed by a drop to normal speed without manual movement of the throttle. It is often caused by a faulty or improperly adjusted governor.

n: a term used as a measure of the speed at which the drill string is rotating.

n: a term used as a measure of the speed at which the drill string is rotating.

revolutions per minute.

n: the speed, measured in revolutions per minute, at which the rotary table is operated.

n: The speed of rotary.

String RPM.

abbr: revolutions per minute. RQ abbr: reportable quantity. RSPA abbr: Research and Special Projects Administration (DOT).

relative permeability modifier.

revolutions per minute.

n: the number of revolutions per minute that an engine slows down from running at maximum no-load speed to running at maximum full-load speed. Speed droop should not exceed 7%.

n: a set of gears installed between a prime mover and the equipment it drives to reduce the running speed. For example, on a beam pumping unit, the engine may run at a speed of 600 revolutions per minute, rot the pumping unit it drives may need to operate at 20 strokes per minute. The speed reducer makes it possible to obtain the correct pump speed.