Wells – Packers or plugs – Expanded by confined fluid from central chamber – pump or...
Patent
1982-08-26
1984-07-10
Novosad, Stephen J.
Wells
Packers or plugs
Expanded by confined fluid from central chamber, pump or...
166106, 166185, 166191, E21B 33127
Patent
active
044587520
ABSTRACT:
A downhole tool inflatable packer assembly includes an upper packer shoe having a bypass mandrel connected thereto. A packer mandrel adapter has an upper end connected to a lower end of the bypass mandrel. A mandrel cover tube extends downwardly from the packer mandrel adapter. A packer mandrel has an upper portion connected to the packer mandrel adapter. A flow connector and a lower packer adapter are connected in that order below the packer mandrel. A packer flow tube has an upper end received in the bypass mandrel and a lower end received in the flow connector. An inflatable bladder has an upper end connected to the upper packer shoe and a lower end connected to a floating packer shoe which slidably engages the mandrel cover tube. A central flow passage, a packer bypass passage, and an inflation passage are disposed in the packer assembly.
REFERENCES:
patent: 2690224 (1954-09-01), Roberts
patent: 2978046 (1961-04-01), True
patent: 3083774 (1963-04-01), Peters et al.
patent: 3291219 (1966-12-01), Nutter
patent: 3319726 (1967-05-01), Brown
patent: 3439740 (1969-04-01), Conover
patent: 3566981 (1971-03-01), Love
patent: 3876000 (1975-04-01), Nutter
patent: 3926254 (1975-12-01), Evans et al.
Beavers Lucian Wayne
Halliburton Company
Novosad Stephen J.
Walkowski Joseph A.
Weaver Thomas R.
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