Bore-lining tubing and method of use
AssigneeWeatherford/Lamb, Inc.
InventorAndrew Michael Duggan
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Abstract
There is disclosed a method of lining a drilled bore (10) and bore-lining tubing (12). The method comprises providing a first tubular (16); locating the first tubular (16) in the bore (10); providing an expandable, second tubular (22); locating the second tubular (22) in the bore (10) overlapping the first tubular (16); expanding a portion (24) of the second tubular (22) to create a coupling (29) including a flow passage (26) between the first tubular and the second tubular (16,22).
Claims76
A method of lining a drilled bore, the method comprising the steps of:
- providing a first tubular having an internally profiled portion;
- locating the first tubular in the bore;
- providing an expandable, second tubular inside the first tubular;
- locating the second tubular in the bore overlapping the profiled portion of the first tubular;
- and
- expanding a portion of the second tubular to create a coupling including a flow passage within the profiled portion of the first tubular and the second tubular.
Bore-lining tubing comprising:
- a first tubular having an internally profiled portion;
- and
- an expandable, second tubular, wherein a coupling between an expanded portion of the second tubular and the profiled portion of the first tubular surrounding the expanded portion, includes at least one flow passage alone the profiled portion after expansion of the second tubular.
A method of lining a drilled bore, comprising:
- providing a first tubular having an internally profiled portion and a round outer diameter;
- thereafter, locating the first tubular in the bore;
- providing an expandable, second tubular inside the first tubular;
- locating the second tubular in the bore overlapping the profiled portion of the first tubular;
- and
- expanding a portion of the second tubular to create a coupling including a flow passage within the profiled portion of the first tubular and the second tubular.
Apparatus for lining a bore, comprising:
- a first tubular having a first length with an internal profile and a second length with a non-profiled inner surface;
- and
- an expandable, second tubular disposed at least partially within the first tubular, wherein a coupling between an expanded portion of the second tubular and the profiled portion of the first tubular includes at least one flow passage along the internal profile after expansion of the second tubular.
Dependencies are inferred from the claim text.