دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a beam pumping unit on which the counterbalancing is done by means of an air cylinder.

n: the weights on a beam pumping unit installed on the end of the walking beam, which is opposite the end over the well. The counterbalance offsets, or balances, the weight of sucker rods and other downhole equipment installed in the well.

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: a beam pumping unit that has a counterbalance weight on the walking beam.

n: a reduction unit between a prime mover and a beam pumping unit that reduces the prime movers output speed by means of a series of chains.

n: a beam pumping unit that has the counterbalance weight on the crank arm.

adj. of a well, being pumped by a beam pumping unit

n: a sucker rod string, that is, the entire length of sucker rods, which usu- ally consists of several single rods screwed together. The rod string serves as a mechanical link from the beam pumping unit on the surface to the sucker rod pump near the bottom of the well.

the string of sucker rods used in beam pumping a well.

n: A part of standard cable drilling and beam pumping unit ,which be used to bear the beam.




the uprights on a beam lift (rod) pump jack that hold the bearing housings.

n: a special steel pumping rod. Several rods screwed together make up the mechanical link from the beam pumping unit on the surface to the sucker rod pump at the bottom of a well. Sucker rods are threaded on each end and manufactured to dimension standards and metal specifications set by the petroleum industry. Lengths are 25 or 30 feet (7.6 or 9.1 metres);diameter varies from 0.5 to 1.5 inches (12 to 30 millimetres). There is also a continuous sucker rod (trade name: CorodTM).

a string or solid or hollow tubular that is moved by a pump jack at the surface to operate a rod pump at the bottom of the well.