Apparatus and method for expanding a tubular
AssigneeWeatherford/Lamb, Inc.
InventorsPaul David Metcalfe, Neil Andrew Abercrombie Simpson
Life of this patent
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Abstract
A method of isolating a section of downhole tubing comprises: running a length of expandable tubing (20) into a tubing-lined borehole (12, 14) and positioning the expandable tubing (20) across a section of tubing to be isolated; deforming at least portions of the expandable tubing (36, 40) to increase the diameter of the portions to sealingly engage the tubing (14) and to isolate the tubing section.
Claims19
A method of expanding a first tubular into a second tubular in a wellbore, comprising:
- running the first tubular into the wellbore to a predetermined location within the second tubular;
- creating a first circumferentially continuous annular extension in an inner wall of the first tubular, thereby expanding the first tubular into contact with the second tubular, wherein creating the first circumferentially continuous annular extension includes extending a legality of radially extendable members of an expander tool, the extendable members causing all of the first circumferentially continuous annular extension;
- and
- creating a second circumferentially continuous annular extension in the inner wall of the first tubular spaced from the first circumferentially continuous annular extension.
A method of expanding a first tubular into a second tubular in a wellbore, comprising:
- running the first tubular into the wellbore to a predetermined location within the second tubular;
- locating an expander tool within the first tubular the expander tool including a plurality of radially extendable members;
- extending the extendable members;
- and
- rotating the expander tool, thereby expanding the first tubular into full circumferential contact with the second tubular in at least one location without retracting the extendable members, wherein first and second exterior seal bands disposed respectively proximate each end of the first tubular are deformed after expanding the first tubular.
A method of expanding a first tubular into a second tubular in a wellbore, comprising:
- running the first tubular into the wellbore to a predetermined location within the second tubular;
- locating an expander tool within the first tubular, the expander tool including a plurality of piston-mounted, radially extendable members;
- extending the extendable members;
- and
- rotating the expander tool to expand the first tubular into contact with the second tubular in at least one location using the expander tool.
Dependencies are inferred from the claim text.