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US 6,695,065 B2Granted
Tubing expansion
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.
Claims54
A method of expanding tubing, the method comprising the steps:
- locating an expansion tool in a length of expandable tubing of a first diameter;
- and
- applying a plurality of impulses to the tool to drive the tool through the tubing and expand the tubing to a larger second diameter.
Tubing expansion apparatus comprising:
- a first expansion tool for advancement through a length of expandable tubing to expand the tubing from a smaller first diameter to a larger second diameter;
- and
- means for transmitting an impulse force to the tool.
Dependencies are inferred from the claim text.