Wells – Packers or plugs – Expanded by confined fluid from central chamber – pump or...
Patent
1993-09-28
1995-03-21
Neuder, William P.
Wells
Packers or plugs
Expanded by confined fluid from central chamber, pump or...
E21B 33127
Patent
active
053987551
ABSTRACT:
An inflatable packer for use in a well includes a tubular mandrel, an inner elastomer sleeve on the mandrel, armor surrounding the inner sleeve, and an outer elastomer sleeve member that covers at least a portion of the armor. Stress rings are mounted on end portions of the armor are made from a metal plate which has been highly cold-worked in both its longitudinal and transverse directions to provide optimum strength characteristics against stresses imposed thereon when the packer is inflated.
REFERENCES:
patent: 4057108 (1977-11-01), Broussard
patent: 4424858 (1984-01-01), Elliot et al.
patent: 4768590 (1988-09-01), Sanford et al.
patent: 4923007 (1990-05-01), Sanford et al.
Eslinger David M.
Sorem Robert M.
Dowell Schlumberger Incorporated
Littlefield Stephen A.
Neuder William P.
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