دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

v: in reference to tubing under the effects of temperature changes, sucker rod pumping, or high internal pressure, to increase in diameter while decreasing in length. Compare reverse-balloon.

n: a machine designed specifically for sucker rod pumping. An engine or motor (prime mover) is mounted on the unit to power a rotating crank. The crank moves a horizontal member (walking beam) up and down to produce reciprocating motion. This reciprocating motion operates the pump. Compare pump jack.

n: any of the rod pumps, high-pressure liquid pumps, or centrifugal pumps located at or near the bottom of the well and used to lift the well fluids. See centrifugal pump. hydraulic pumping. submersible pump. sucker rod pumping.

n: a cable on a pumping unit, looped over the horsehead and connected to the carrier bar to support the polished rod clamp. See sucker rod pumping.

n: a sucker rod pumping unit. not commonly used. that employs cable wound around a spool. one end going into the hole. the other with a suspended counterweight. This type of unit can achieve 40- to SO-foot ( 12- to 24- metre) stroke lengths. reducing dynamic loads, rod reversals. gas locking. and power usage and can be applied to deep pump applications

n: 1. an instrument or assembly of instruments used to measure torque and other force-related properties of rotating or reciprocating machinery. 2. in sucker rod pumping, a device used to indicate a variation in load on the polished rod as the rod string reciprocates. A continuous record of the result of forces acting along the axis of the polished rod is provided on a dynamometer card, from which an analysis is made of the performance of the well pumping equipment.

a recording of the stresses in a rod string of a beam pumping unit.

n: a continuous record made by the dynamometer of the result of forces acting along the axis of the polished rod in sucker rod pumping.

n: the generally horseheadshaped steel piece at the front of the beam of a pumping unit to which the bridle is attached in sucker rod pumping.

n: a sucker rod pumping unit that uses reciprocal hydraulic pumps. Few are still in operation.

n: 1. in drilling, a single length (from 16 feet to 45 feet, or 5 metres to 14.5 metres, depending on its range length) of drill pipe, drill collar, casing, or tubing that has threaded connections at both ends. Several joints screwed together constitute a stand of pipe. 2. in pipelining, a single length (usually 40 feet-12 metres) of pipe.3. in geology, a crack or fissure produced in a rock by internal stresses. 4. in sucker rod pumping, a single length of sucker rod that has threaded connections at both ends.

n: a single length of the pipe that has threaded connections at each end.

(geological) a large, generally planar fracture through a rock across which there has been no movement.