Expanding downhole tubing by compression

Details Expanding downhole tubing by compression Expanding downhole tubing by compression

E - Fixed Constructions

21

B

E21B 29/00 (2006.01)

Patent

CA 2470592

A method of expanding tubing downhole comprises providing a section of expandable tubing of a first diameter, and axially compressing the tubing to induce buckling, such that the buckled portion describes a larger second diameter. The resulting diametric expansion may be utilised to anchor or seal the tubing within a larger bore. The buckled portion may be used to anchor the tubing within the wellbore prior to expansion of the length of the tubing into the wellbore.

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