Well system

Details Well system Well system

1980-11-28

1982-12-28

Pate, III, William F.

Wells

Valves, closures or changeable restrictors

Operated by dropped element

166239, 166332, E21B 3414

Patent

active

043656714

ABSTRACT:
A well completion system particularly adapted for pumpdown operation in which landing of a standing valve in a foot valve automatically opens a foot valve and in which withdrawing of the standing valve automatically closes the foot valve and in which provisions are made to pump by both valves.

REFERENCES:
patent: 2994280 (1961-08-01), Daffin
patent: 4230185 (1980-10-01), Fredd
patent: 4260021 (1981-04-01), Mott
pp. 24, 19, "Pumpdown Flow Controls", Pumpdown Nipples and Mandrels, Otis Product Catalog.

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