Method and apparatus for repairing casings and the like

Details Method and apparatus for repairing casings and the like Method and apparatus for repairing casings and the like

1990-01-04

1991-09-10

Melius, Terry L.

Wells

Miscellaneous

166277, 242 722, 156392, B65H 8100, E21B 2910

Patent

active

050465589

ABSTRACT:
An improved device and process for creating a lining in a bore transfers strip wrapped in overlapping spiral fashion about a mandrel to the bore wall such that the edge-to-edge relation of the spirally-wrapped strip is maintained from the mandrel to the bore wall. Adhesive is applied to the strip surface during wrapping thereof on the mandrel. The invention provides a new bore with a thin, strong, corrosion resistant lining over a preselected portion of its length that is substantially pressure tight internally and externally and leak proof thus permitting substantial reuse of the lined bore.

REFERENCES:
patent: 3364993 (1968-01-01), Skipper
patent: 3470057 (1969-09-01), Stuart, Jr. et al.
patent: 4008114 (1977-02-01), Lindsey
patent: 4069088 (1978-01-01), Cottman
patent: 4261785 (1981-04-01), Hunter

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