Downhole progressing cavity pump rotor valve

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 47/06 (2006.01) E21B 43/12 (2006.01) E21B 47/10 (2006.01)

Patent

CA 2133907

An apparatus and method for plugging a tubing string of a fluid producing well below a sucker rod driven progressing cavity type pump uses a valve means inside of the tubing string below the pump, the valve means being actuatable by displacing the rotor of the pump axially within the stator by vertical movement of the sucker rod string. The valve means can comprise a valve seat fixed to theinside of the tubing below the rotor and a valve member fixed to the bottom end of the rotor and adapted to be brought into sealing engagement with the valve seat by downward movement of the rotor.

ppareil et méthode pour colmater une colonne de production d'un puits producteur de liquide sous une tige de pompage engagée dans une pompe à cavité intermédiaire utilisant une soupape à l'intérieur de la colonne de production sous la pompe, la soupape mise en action en déplaçant le rotor de pompe dans le sens de l'axe à l'intérieur du stator par un mouvement vertical de la colonne de tige de pompage. La soupape peut comprendre un siège de soupape fixé à l'intérieur de la canalisation sous le rotor et un élément de soupape fixé à l'extrémité inférieure du rotor et adapté pour une fermeture étanche avec le siège de soupape par un mouvement descendant du rotor.

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