Wells – Packers or plugs – With expanding anchor
Patent
1992-03-31
1993-03-30
Dang, Hoang C.
Wells
Packers or plugs
With expanding anchor
166134, 166187, 277 34, E21B 33127, E21B 33128
Patent
active
051975424
ABSTRACT:
There is disclosed a well packer for use in closing off the annulus between a casing string in which the packer is connected and a well bore into which the casing string is lowered. The packer includes a mandrel connected as part of the casing string, a sleeve of elastomeric material surrounding an intermediate portion of the mandrel and adapted to be inflated into engagement with the well bore, and relatively short, substantially rigid but flexible, overlapping strips disposed about only upper and lower portions of the sleeve for expansion therewith into engagement with the well bore.
REFERENCES:
patent: 2738017 (1956-03-01), Lynes
patent: 2738018 (1956-03-01), Lynes
patent: 3524503 (1970-08-01), Baker
patent: 4052861 (1977-10-01), Malone et al.
patent: 4063427 (1977-12-01), Hoffman
patent: 4349204 (1982-09-01), Malone
patent: 4768590 (1988-09-01), Sanford et al.
patent: 4832120 (1989-05-01), Coronado
patent: 4892144 (1990-01-01), Coone
patent: 4979570 (1990-12-01), Mody
patent: 5027894 (1991-07-01), Coone et al.
patent: 5101908 (1992-04-01), Mody
Baker Service Tools Brochure Entitled "LYNES.TM. XL ECPs".
Completion Tool Company Pamphlet Entitled "Payzone.TM. Packer Installation & Evaluation".
Dang Hoang C.
Davis-Lynch, Inc.
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