Apparatus and methods for radially expanding a tubular member
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United States of America Patent
Stats
-
Feb 2, 2010
Grant Date -
Dec 18, 2008
app pub date -
Jul 22, 2008
filing date -
Apr 20, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Radially expanding a tubular such as a liner or casing, especially in a downward direction. The apparatus includes at least one driver device such as a piston that is typically fluid-actuated, and an expander device is attached to the or each driver device. Actuation of the or each driver device causes movement of the expander device to expand the tubular. One or more anchoring devices, which may be radially offset, are used to substantially prevent the tubular from moving during expansion thereof.
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