Wells – Packers or plugs – With expanding anchor
Patent
1985-06-10
1986-08-12
Novosad, Stephen J.
Wells
Packers or plugs
With expanding anchor
166128, 166129, 166131, 166194, 166324, 166332, E21B 33124, E21B 3414, E21B 4314, E21B 2306
Patent
active
046050620
ABSTRACT:
An injection tool for use in injecting fluids through perforations in the well bore of an oil or gas well is mechanically set and mechanically releasable. Fluid can be injected between upper and lower packing elements into a selected perforation. The upper and lower packing elements on opposite sides of the perforation into which fluid is injected are retractable, and any pressure differential across the upper packing elements or across the lower packing elements can be separately equalized.
REFERENCES:
patent: Re25639 (1964-09-01), Clark, Jr. et al.
patent: Re26085 (1966-09-01), Myers
patent: 2042817 (1936-06-01), Wilcox
patent: 2227539 (1941-01-01), Dorton
patent: 3008523 (1961-11-01), Clark, Jr. et al.
patent: 3112795 (1963-12-01), Keithahn
patent: 3398796 (1968-08-01), Fisher, Jr. et al.
patent: 3412799 (1968-11-01), Ellis
patent: 3434538 (1969-03-01), Kilgore et al.
patent: 3517743 (1970-06-01), Pumpelly et al.
patent: 3861465 (1975-01-01), Mignotte
patent: 4258787 (1981-03-01), Amancharla
patent: 4567944 (1986-02-01), Zunkel et al.
Klumpyan Joseph N.
Ross Richard J.
Baker Oil Tools, Inc.
Letchford John F.
Novosad Stephen J.
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