Wells – Processes – Placing or shifting well part
Reexamination Certificate
2011-04-12
2011-04-12
Neuder, William P (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S207000
Reexamination Certificate
active
07921925
ABSTRACT:
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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Abercrombie Simpson Neil Andrew
Coon Robert J.
Maguire Patrick G.
Neuder William P
Patterson & Sheridan LLP
Weatherford / Lamb, Inc.
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