Method for sealing between a lining and borehole, casing or pipe

Details Method for sealing between a lining and borehole, casing or pipe Method for sealing between a lining and borehole, casing or pipe

1995-03-23

1996-02-27

Schoeppel, Roger J.

Wells

Processes

Repairing object in well

166387, 264269, E21B 2900

Patent

active

054941067

ABSTRACT:
To seal the connection between an internal lining and external borehole, casing or pipeline, one or more elastically deformable annular seals are placed on the preform in a contracted state, in a configuration which does not impede insertion of the preform into the borehole, casing or pipeline. During expansion of the preform the seal itself forms an annular groove for receiving it in the exterior surface of the preform. After hardening of the preform a rigid lining is obtained having an integral seal. Applications include repair of boreholes, casings, especially in oil wells, or pipelines, by internal lining.

REFERENCES:
patent: 1641035 (1927-08-01), Hero
patent: 3354955 (1967-11-01), Berry
patent: 3489220 (1970-01-01), Kinley
patent: 4270761 (1981-06-01), Hertz
patent: 5337823 (1994-08-01), Nobileau

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