Wells – Valves – closures or changeable restrictors
Patent
1974-12-18
1976-05-18
Novosad, Stephen J.
Wells
Valves, closures or changeable restrictors
E21B 4300
Patent
active
039571190
ABSTRACT:
A pumpable tool and method of utilizing the tool to perform an operation at a point axially spaced from a circulating means between a pair of conduits. The tool includes a pair of pistons one of which is associated with a bypass valve. The operation is performed by applying fluid pressure in both conduits with the bypass valve closed. The tool can be circulated out of one of the conduits when the bypass valve is open. This abstract is neither intended to define the invention of the application which, of course, is measured by the claims, nor is it intended to be limiting as to the scope of the invention in any way.
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Novosad Stephen J.
Suckfield George A.
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