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

E - Fixed Constructions

21

B

26/155, 166/59,

E21B 33/127 (2006.01) E21B 29/10 (2006.01) E21B 33/13 (2006.01)

Patent

CA 1294198

ABSTRACT OF THE DISCLOSURE 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 inven- tion 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 exter- nally and leak proof thus permitting substantial reuse of the lined bore.

614516

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