Submersible pump safety systems

Details Submersible pump safety systems Submersible pump safety systems

1985-10-21

1986-12-30

Leppink, James A.

Wells

With eduction pump or plunger

Having liquid-gas separator

166106, 166188, 166321, E21B 4312

Patent

active

046321845

ABSTRACT:
A pump produces through a tubing in a cased well. Gas is vented through the packer and through a valve preferably located in a side pocket mandrel in the tubing. A subsurface safety valve is positioned in the tubing below the side pocket mandrel and preferably below the packer. The safety valve is preferably of the flapper type and when the valve is closed liquid is automatically recirculated to the pump.

REFERENCES:
patent: 3782461 (1974-01-01), Watkins
patent: 3845818 (1974-11-01), Deaton
patent: 3861464 (1975-01-01), Boyadjieff et al.
patent: 4103744 (1978-08-01), Akkerman
patent: 4354554 (1982-10-01), Calhoun et al.
patent: 4461353 (1984-07-01), Vinzant et al.
patent: 4502536 (1985-03-01), Setterberg, Jr.
patent: 4589482 (1986-05-01), Bayh, III

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