Foot valve for pumping wells

Details Foot valve for pumping wells Foot valve for pumping wells

E - Fixed Constructions

21

B

166/41

E21B 43/29 (2006.01) E21B 23/02 (2006.01) E21B 34/14 (2006.01) F04B 53/10 (2006.01)

Patent

CA 1285863

ABSTRACT OF THE DISCLOSURE Methods of and apparatus for plugging a well below a rod pump to permit bleeding off the pressure thereabove so that the pump can be removed from the well for replacement or repairs and reinstalled for further pumping operations, the pump being connected to a valve mechanism in the well in a manner which permits the valve to be closed as a result off lifting the pump, this connection being releasable to permit the pump to be pulled free of the valve and withdrawn from the well after the well pressure has been bled from above the closed valve. When the pump is installed again, the pump automatically reconnects to the valve. This invention is particularly useful in wells which are stimulated by the injection of steam.

560939

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