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US 6,454,013 B1Granted
Expandable downhole tubing
AssigneeWeatherford/Lamb, Inc.
InventorPaul David Metcalfe
Life of this patent
Estimating the term…
Abstract
A tubing coupling method comprises the steps: providing a length of expandable tubing (72) and a length of larger diameter non-expanding tubing (74); connecting an end portion of the expandable tubing (72) to an end portion of the non-expanding tubing (74) with a portion of expandable tubing (76); running the tubing (72, 74, 76) into a bore; and expanding the expandable tubing (72, 76). The expandable tubing (72) may form part of an expandable well or sand screen, or may be expandable bore liner (12).
Claims14
A method for expanding tubulars, comprising:
- providing a length of expandable tubing and a length of larger diameter tubing;
- connecting an end portion of the expandable tubing to an end portion of the larger diameter tubing, wherein the connection is formed by partially expanding the end portion of the expandable tubing to a diameter corresponding to the larger diameter tubing;
- running the connected tubing into a bore;
- and
- expanding the expandable tubing.
2 more elements
A method for expanding tubulars, comprising:
- providing an expandable tubing and a larger diameter tubing, wherein the larger diameter tubing has an expandable, tapering end portion;
- connecting an end portion of the expandable tubing to the expandable tapering end portion of the larger diameter tubing;
- running the connected tubing into a bore;
- and
- expanding the expandable tubing.
2 more elements
Dependencies are inferred from the claim text.