Apparatus for sealing a well casing

Details Apparatus for sealing a well casing Apparatus for sealing a well casing

1983-10-24

1985-11-26

Novosad, Stephen J.

Wells

Packers or plugs

Flow stopping type; e.g., plug

166135, 166196, 166387, 2771164, E21B 33128

Patent

active

045549737

ABSTRACT:
A method and apparatus for sealing a well casing, when a length of production tubing is disposed within the well casing, utilizes a sealing means having a first diameter less than the diameter of the production tubing, and the sealing means is compressible to a second diameter which sealingly conforms to the diameter of the well casing, to prevent fluids disposed in the well casing below the sealing means from flowing through the well casing to above the sealing means.

REFERENCES:
patent: 3067819 (1962-12-01), Gore
patent: 3381969 (1968-05-01), Crow
patent: 3463228 (1969-08-01), Hearn
patent: 3529836 (1970-09-01), Hyde
patent: 3578078 (1971-05-01), Schillander
patent: 3706342 (1972-12-01), Woolley
patent: 4050517 (1977-09-01), Matthews

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