| Patent application number | Description | Published |
|---|
| 20080223568 | Pipe Expander - An expander is provided for radially expanding a tubular element, the expander having an axially forward direction and being provided with thrust means for exerting a thrust force to the expander to move the expander in axially forward direction through the tubular element. The expander comprises an adjustable cone having an expander surface tapering radially inward in the axially forward direction, the adjustable cone being movable between a radially expanded mode and a radially collapsed mode. The expander further comprises adjusting means for moving the adjustable cone from the collapsed mode to the expanded mode by the action of said thrust force exerted to the thrust means. | 09-18-2008 |
| 20090255689 | METHOD OF RADIALLY EXPANDING A TUBULAR ELEMENT - A method is provided of radially expanding a tubular element. The method comprises inducing the wall of the tubular element to bend radially outward and in axially reverse direction so as to form an expanded section of the tubular element extending around an unexpanded section of the tubular element, wherein said bending occurs in a bending zone of the wall, and wherein an annular space is defined between the unexpanded and expanded sections. At least one guide member is located in the annular space, each guide member being arranged to guide the wall during said bending so that the wall bends at an increased bending radius relative to bending of the wall in case the guide member is absent from the annular space. | 10-15-2009 |
| 20110048699 | SYSTEM AND METHOD FOR ANCHORING AN EXPANDABLE TUBULAR TO A BOREHOLE WALL - The present invention provides a system for anchoring an expandable tubular to a borehole wall. The system comprises a support member having a first end fixed relative to the outside of the tubular and a second end comprising a ramping surface. An anchor member has a first end fixed relative to the outside of the tubular and a second end extending toward the support member, said second end being movable relative to the outside of the tubular. Said support member includes a ramp surface that tapers in the direction of said anchor member. Expansion of the portion of the expandable tubular between the first support end and the first anchor end causes the axial device length to shorten, wherein the difference in length is sufficient to cause the second anchor end to move radially outward and engage the borehole wall as a result of engagement with said ramping surface. | 03-03-2011 |
| 20110259609 | EXPANDING A TUBULAR ELEMENT IN A WELLBORE - A method is provided of radially expanding a tubular element ( | 10-27-2011 |
