Run in cover for downhole expandable screen
First Claim
Patent Images
1. A method of well completion, comprising:
- covering an exterior surface of screen with a substantially extensible sleeve;
running the assembled screen and sleeve downhole;
configuring said sleeve to allow some flow, during a circulation or reverse circulation or run in, through radial flow paths through said screen;
expanding said screen and said sleeve without severing said sleeve from a top to a bottom end; and
enlarging said flow paths in said screen by said expanding.
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Accused Products
Abstract
A screen to be expanded when placed downhole is disclosed. The screen is delivered to the location with a cover that blocks access to the screen from well fluids. Circulation or reverse circulation can be undertaken with no appreciable flow through the screen due to placement of the cover. In one embodiment the cover has slits that open to be diamond shapes upon expansion of the underlying screen. In another embodiment, the openings are created by shapes that have a weakened edge that, as a result of expansion break off to create available openings for flow.
84 Citations
19 Claims
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1. A method of well completion, comprising:
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covering an exterior surface of screen with a substantially extensible sleeve;
running the assembled screen and sleeve downhole;
configuring said sleeve to allow some flow, during a circulation or reverse circulation or run in, through radial flow paths through said screen;
expanding said screen and said sleeve without severing said sleeve from a top to a bottom end; and
enlarging said flow paths in said screen by said expanding. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of well completion, comprising:
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covering a screen with a sleeve;
running the assembled screen and sleeve downhole;
expanding said screen;
providing flow paths to said screen by said expanding;
releasing said sleeve from said screen by said expanding. - View Dependent Claims (12)
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13. A method of well completion, comprising:
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covering a screen with a sleeve;
running the assembled screen and sleeve downhole;
expanding said screen;
providing flow paths to said screen by said expanding;
providing a plurality of lines on said sleeve;
increasing stress along said lines due to said expanding;
separating said sleeve along said lines;
configuring said lines in a closed geometric shape;
defining covers for potential openings in said sleeve with said geometric shapes;
separating said covers from said sleeve by said expanding. - View Dependent Claims (14, 15, 16, 17)
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18. A method of well completion, comprising:
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covering a screen with a sleeve;
running the assembled screen and sleeve downhole;
expanding said screen;
providing flow paths to said screen by said expanding;
providing a seam on said sleeve;
breaking said seam at least in part from said expanding.
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19. A method of well completion, comprising:
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covering a screen with a sleeve;
running the assembled screen and sleeve downhole;
expanding said screen;
providing flow paths to said screen by said expanding;
providing said sleeve in the form of a scroll;
securing said scroll to said screen;
releasing said scroll at least in part by said expanding.
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Specification