Bore-lining tubing
AssigneeWeatherford/Lamb, Inc.
InventorNeil Andrew Abercrombie Simpson
Life of this patent
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Abstract
A method of lining a bore section, the method comprises providing a first tubing section and an expandable thin-walled second tubing section. The first tubing section is run into a section of a bore. The second tubing section is then run into the bore section, within the first tubing section, and expanded to a larger diameter, such that the bore section is lined by at least two tubing sections.
Claims30
A method of lining a wellbore, the method comprising:
- lowering a first tubular into the wellbore;
- expanding the first tubular into contact with the wellbore;
- lowering a second tubular into the wellbore to a location below the first tubular, leaving an axial separation between the first tubular and the second tubular;
- expanding the second tubular into contact with the wellbore;
- lowering a third tubular into the wellbore and positioning the third tubular adjacent the axial separation;
- expanding the third tubular into contact with the first tubular and the second tubular, thereby covering the axial separation;
- and
- positioning and expanding an inner tubular within the wellbore such that a portion of the inner tubular overlaps a portion of the first tubular, the second tubular and the third tubular.
A method of lining a wellbore, the method comprising:
- lowering a first tubular into the wellbore below a preexisting wellbore tubular and leaving an axial separation between the tubulars;
- expanding the first tubular into contact with the wellbore;
- lowering a second tubular into the wellbore and positioning the second tubular adjacent the axial separation;
- expanding the second tubular into contact with the preexisting wellbore tubular and the first tubular, thereby covering the axial separation;
- and
- positioning and expanding an inner tubular within the wellbore such that a portion of the inner tubular overlaps at least a portion of the first tubular and the second tubular.
An apparatus for use in lining a bore, the apparatus comprising:
- a plurality of first tubing sections adapted for location in a bore section with an axial separation between the first tubing sections, wherein each first tubing section is configured to have a first diameter prior to expansion and a second larger diameter after expansion;
- an expandable second tubing section adapted for location in the bore within the first tubing sections and bridging the axial separation between the first tubing sections and for expansion therein;
- and
- an expandable inner tubing section adapted for location in the bore such that a portion of the expandable inner tubing section overlaps a portion of the plurality of first tubing sections and a portion of the expandable second tubing section.
A method of lining a wellbore, the method comprising:
- positioning and expanding a first outer tubular into contact with the wellbore, wherein the first outer tubular includes a first electrical conductor;
- positioning and expanding a second outer tubular into contact with the wellbore below the first tubular, leaving an axial separation between the first outer tubular and the second outer tubular, wherein the second outer tubular includes a second electrical conductor;
- and
- positioning and expanding an intermediate tubular adjacent the axial separation, thereby covering the axial separation, wherein the intermediate tubular includes an intermediate electrical conductor that is configured to connect the first electrical conductor to the second electrical conductor.
Dependencies are inferred from the claim text.