Wells – Packers or plugs – Cup type
Patent
1985-10-31
1989-09-26
Novosad, Stephen J.
Wells
Packers or plugs
Cup type
166303, E21B 33126
Patent
active
048693200
ABSTRACT:
A wellbore packer capable of sealing a tubing string within a wellbore casing or wellbore is described.
REFERENCES:
patent: 2305282 (1942-12-01), Taylor, Jr. et al.
patent: 2723721 (1955-11-01), Corsette
patent: 3010518 (1961-11-01), Harmon
patent: 4484626 (1984-11-01), Kerfoot et al.
Chevron Research Company
Keeling E. J.
Novosad Stephen J.
Schaal E. A.
Zavell A. S.
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