Back to results
US 7,063,149 B2Granted
Tubing expansion with an apparatus that cycles between different diameter configurations
AssigneeWeatherford/Lamb, Inc.
InventorsNeil Andrew Abercrombie Simpson, David H. Grant, Grant Adams
Life of this patent
Estimating the term…
Abstract
A method of expanding tubing comprises the steps: providing a length of expandable tubing; locating an expansion tool, such as a cone, in the tubing; and applying impulses to the tool to drive the tool through the tubing and expand the tubing to a larger diameter. The tubing may be located downhole and may have a solid wall or a slotted wall.
Claims5
Tubing expansion apparatus, the apparatus comprising:
- an expansion device for advancement through a length of expandable tubing to expand the tubing from a smaller first diameter to a larger second diameter, the device being adapted to cycle between a smaller diameter first configuration and a larger diameter second configuration;
- a pressure responsive member for cycling the device between said configurations at least once a second;
- and
- a force application member for advancing the expansion device through the tubing.
1 more element
A method of expanding tubing, the method comprising:
- providing a length of expandable tubing of a first diameter;
- locating an expansion device in the tubing;
- cycling the expansion device between a smaller diameter first configuration and a larger diameter second configuration, in said second configuration the expansion device describing a greater diameter than said tubing first diameter such that the tubing is expanded to a greater second diameter, wherein the expansion device is cycled at least once a second;
- and
- advancing the expansion device through the tubing.
2 more elements
Dependencies are inferred from the claim text.