Wells – Valves – closures or changeable restrictors
Patent
1979-01-19
1980-12-09
Purser, Ernest R.
Wells
Valves, closures or changeable restrictors
166120, 166123, E21B 33128, E21B 33129
Patent
active
042379792
ABSTRACT:
A valve assembly is mounted with the setting tool for a hydraulically actuated well packer. The valve is located at a fluid passage in the setting tool and movable to control fluid flow from inside the setting tool to the well packer setting mechanism. In using this equipment, the valve is open when the setting tool is positioned within the well packer for setting of the well packer so fluid can pass through the setting tool and into the packer hydraulic setting mechanism. The valve is closed when the setting tool is removed from the well packer in order that fluid can flow through the setting tool and also through the bore of the well packer mandrel for fluid communication through the well tubing to a location below the packer without leakage into the annular cavity above or below the packer.
REFERENCES:
patent: 3011558 (1961-12-01), Conrad
patent: 3306363 (1967-02-01), McZilkey et al.
patent: 3448806 (1969-06-01), Berryman et al.
patent: 4044826 (1977-08-01), Crowe
patent: 4151876 (1979-05-01), Briggs et al.
Baker Oil Tool Catalog 1978-1979, p. 810, Product No. 487-20.
Dresser Industries Inc.
Hazelwood J. N.
Peoples W. R.
Purser Ernest R.
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