Collapse resistant expandables for use in wellbore environments
First Claim
Patent Images
1. A system, comprising:
- an expandable tubular having a wall with a plurality of bistable cells that change from a stable collapsed state to a stable expanded state during expansion of the expandable tubular, the expandable tubular further comprising a blocking member, disposed in the wall, that shifts position upon reaching the expanded state to further resist return of the cells to the stable collapsed state.
1 Assignment
0 Petitions
Accused Products
Abstract
A technique utilizes blocking members to resist contraction of expandables in wellbore environments. The technique comprises an expandable having a wall with a plurality of expandable cells. A plurality of blocking members cooperate with at least some of the cells to resist contraction of the expandable device once transitioned to a desired expanded state.
-
Citations
35 Claims
-
1. A system, comprising:
an expandable tubular having a wall with a plurality of bistable cells that change from a stable collapsed state to a stable expanded state during expansion of the expandable tubular, the expandable tubular further comprising a blocking member, disposed in the wall, that shifts position upon reaching the expanded state to further resist return of the cells to the stable collapsed state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
11. An expandable system for use in a wellbore, comprising:
-
a wellbore expandable having a wall with a plurality of cells, each cell comprising a bistable cell having a stable collapsed state and a stable expanded state; and a contraction blocking mechanism comprising a plurality of separate inserts, wherein upon transitioning the wellbore expandable toward an expanded state, at least a plurality of the bistable cells transition to the stable expanded state, and at least a portion of the plurality of separate inserts are moved into an interfering relationship with the plurality of cells to further resist collapse of the plurality of bistable cells once the wellbore expandable is expanded. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A method of making an expandable tubular, comprising:
-
forming a plurality of bistable cells through a wall of an expandable tubular wherein the plurality of bistable cells change from a stable collapsed state to a stable expanded state during expansion of the expandable tubular; placing a plurality of contraction blocking members adjacent the plurality of bistable cells; and biasing at least a portion of the plurality of contraction blocking members to move into an interfering position within the plurality of bistable cells to further resist collapse of the plurality of bistable cells once the expandable tubular is expanded. - View Dependent Claims (22, 23, 24, 25, 26)
-
-
27. A system of making an expandable tubular, comprising:
-
means for forming an expandable tubular having a plurality of bistable cells that change from a stable collapsed state to a stable expanded state during expansion of the expandable tubular; and means for further resisting contraction of the expandable tubular by moving a blocking member into an interfering position within a wall of the expandable tubular upon movement of the expandable tubular wall to an expanded state. - View Dependent Claims (28, 29, 30)
-
-
31. A system comprising:
an expandable tubular having a tubular wall with a plurality of bistable cells being stable in a first collapsed state and a second expanded state, and a plurality of spring clips mounted in the tubular wall in the compressed state prior to expansion of the expandable tubular, wherein upon sufficient expansion of the expandable tubular, at least a portion of the bistable cells transition to the stable expanded state and at least a portion of the plurality of spring clips transition to an interfering position to further resist collapse of the expandable tubular. - View Dependent Claims (32, 33, 34, 35)
Specification