Wireline/coiled tubing retrievable well pump

Details Wireline/coiled tubing retrievable well pump Wireline/coiled tubing retrievable well pump

E - Fixed Constructions

21

B

E21B 43/12 (2006.01) F04B 47/06 (2006.01)

Patent

CA 2242583

A well pump assembly has an electric motor (21) that is secured to a lower end of a string of production tubing. The motor is powered by a power cable (25) that extends alongside the tubing to the surface. The motor has an upper end with a drive shaft coupling (29). The pump (37) for the motor is lowered through the productino tubing on a wireline, wire rope or coiled tubing. The pump has a lower end which has a driven shaft coupling (47) that makes up in stabbing engagement with the drive shaft coupling when the pump reaches the motor. A head (67) on the upper end of the pump assembly latches the pump in place.

La présente invention concerne un ensemble pompe de puits comportant un moteur (21) électrique fixé à une extrémité inférieure d'une colonne d'un tube de production. Le moteur est alimenté par un câble (25) d'alimentation qui remonte en surface le long du tube. Le moteur comporte une extrémité supérieure avec un accouplement (29) d'arbre d'entraînement. La pompe (37) du moteur est descendue dans le tube de production attachée à un câble électrique, un câble métallique ou à un tube en spirale. La pompe comporte une extrémité inférieure dotée d'un accouplement (47) d'arbre mené qui s'enclenche sur l'accouplement d'arbre d'entraînement lorsque la pompe atteint le moteur. Une tête (67) placée à l'extrémité supérieure de l'ensemble pompe verrouille la pompe en place.

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