Downhole progressing cavity pump rotor valve

Details Downhole progressing cavity pump rotor valve Downhole progressing cavity pump rotor valve

1994-05-27

1996-08-27

Britts, Ramon S.

Wells

Processes

With indicating, testing, measuring or locating

166 685, 166106, 418 48, 418182, E21B 4710

Patent

active

055491600

ABSTRACT:
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 the inside 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.

REFERENCES:
patent: 3938744 (1976-02-01), Allen
patent: 4592427 (1986-06-01), Morgan
patent: 4781536 (1988-11-01), Hicks
patent: 5015162 (1991-05-01), Heppner
patent: 5143153 (1992-09-01), Bach et al.

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