Sealing expandable tubing

Details Sealing expandable tubing Sealing expandable tubing

E - Fixed Constructions

21

B

E21B 17/08 (2006.01) B21D 31/04 (2006.01) B21D 39/04 (2006.01) E21B 19/16 (2006.01) E21B 43/10 (2006.01)

Patent

CA 2475631

There is disclosed expandable tubing and methods of sealing a connection between expandable tubulars, and in particular, methods of sealing a connection between expandable tubulars post-expansion. In one embodiment, a method of sealing a connection between expandable tubulars in the form of sections of an expandable liner (10) is disclosed. The method comprises the steps of connecting a first expandable tubular in the form of a first section (22) of the liner (10) and a second expandable tubular in the form of a second section (24) of the liner (10). A seal (26) is located between radially overlapping portions (28,30) of the liner sections (22,24), and the seal (26) is configured to maintain sealing between the liner sections (22,24) both pre and post expansion.

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