Downhole pump with pressure limiter

Details Downhole pump with pressure limiter Downhole pump with pressure limiter

1980-06-13

1982-02-02

Pate, III, William F.

Wells

Automatic

166105, 417223, E21B 4312

Patent

active

043134955

ABSTRACT:
A well testing assembly includes a pressure limiter located between a downhole pump and an inflatable packer. The pressure limiter includes a housing having first and second housing parts and having an inflation passage disposed therein for communicating a discharge of the downhole pump with the inflatable packer. A clutch is connected between the first and second housing parts. A biasing spring biases the clutch toward an engaged position. A piston is operatively associated with the clutch and communicated with the inflation passage for overcoming the biasing spring and moving the clutch to a disengaged position at a predetermined fluid pressure level within the inflation passage.

REFERENCES:
patent: 1046585 (1919-12-01), Haakonson
patent: 2690224 (0000-01-01), Roberts
patent: 3083774 (0000-01-01), Peters et al.
patent: 3291219 (0000-01-01), Nutter
patent: 3439740 (1969-04-01), Conover
patent: 3926254 (1975-12-01), Evans et al.
patent: 4118151 (1978-10-01), Murakami

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