Method and apparatus for expanding and separating tubulars...

Details Method and apparatus for expanding and separating tubulars... Method and apparatus for expanding and separating tubulars...

E - Fixed Constructions

21

B

E21B 29/08 (2006.01) E21B 17/00 (2006.01) E21B 43/12 (2006.01)

Patent

CA 2509317

Embodiments of the present invention provide an apparatus and method for expanding a tubular. In one aspect, embodiments of the prevent invention provide an expander tool having at least two expansion members radially extendable from the expander tool into contact with a surrounding inside surface of the tubular, the at least two expansion members radially extendable at different times and axially spaced after radially extending. In another aspect, embodiments include a method for isolating a first portion of a wellbore from a second portion of a wellbore comprising locating an expandable tubular within the wellbore between the first and second portions, the expandable tubular having a weakened portion therein, isolating the first portion from the second portion of the wellbore, and expanding the expandable tubular proximate to the weakened portion to sever the expandable tubular.

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