Progressing cavity pump assembly and method of operation

Details Progressing cavity pump assembly and method of operation Progressing cavity pump assembly and method of operation

F - Mech Eng,Light,Heat,Weapons

04

C

F04C 15/00 (2006.01) F04C 2/107 (2006.01)

Patent

CA 2612326

A progressing cavity pump assembly having a collar assembly adapted to connect the housing and a tubing string, the collar having an inside diameter upset and the rotor having a rotor head axially spaced from a rotor helix, the rotor head having an outer diameter forming a stop, the stop adapted to land on the inside diameter upset. A method of timing a progressing cavity pump assembly including providing a collar assembly, the collar assembly having an inside diameter upset, movably connecting the collar assembly and the housing, providing a rotor having a rotor head axially spaced from a rotor helix, the rotor head having an outer diameter forming a stop, selectively adjusting the relative position of the collar assembly and the housing to form a pathway substantially corresponding to the rotor helix, landing the stop on the inside diameter upset, and fixing the relative position of the collar assembly and the housing.

Pompe à vis hélicoïdale excentrée munie d'un collier adapté pour relier l'enveloppe et un train de tubes, le collier ayant un diamètre intérieur refoulé et le rotor comportant une tête de rotor espacée de l'hélice du rotor sur le plan axial, la tête du rotor comportant un diamètre extérieur formant une butée, ce dernier adapté pour entrer dans le diamètre intérieur refoulé. Une méthode de synchronisation de pompe à vis hélicoïdale excentrée consiste à prévoir un collier, ce dernier ayant un diamètre intérieur refoulé qui permet d'accoupler de façon non permanente le collier à l'enveloppe, fournissant ainsi un rotor dont la tête est espacée sur le plan axial de l'hélice du rotor, la tête du rotor comportant un diamètre extérieur qui forme une butée, afin d'ajuster de façon sélective la position relative du collier et de l'enveloppe pour former une voie qui correspond essentiellement à l'hélice du rotor, plaçant ainsi la butée à l'intérieur du diamètre intérieur refoulé, et fixant la position relative du collier et de l'enveloppe.

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