Apparatus and method for expanding a liner patch

Details Apparatus and method for expanding a liner patch Apparatus and method for expanding a liner patch

E - Fixed Constructions

21

B

E21B 47/09 (2012.01) E21B 29/10 (2006.01) E21B 43/10 (2006.01) E21B 47/00 (2012.01) E21B 47/06 (2012.01) F16L 55/163 (2006.01)

Patent

CA 2539625

An apparatus for expanding a liner patch in a tubular to seal a hole therein, said apparatus comprising a body (134, 206, 306) having a top portion (133, 209, 309), a bottom portion (146, 229, 336) and a middle portion, the middle portion having an outer diameter greater than the top portion and an outer diameter greater than the bottom portion; a first set of fingers (135, 208, 308) disposed around the top portion of said body and a second set of fingers (156, 228, 335) disposed around the bottom portion of said body; the arrangement being such that, in use, said fingers can be urged radially outwardly by displacement thereof over said middle portion.

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