Apparatus and methods for radially expanding a tubular member

Details Apparatus and methods for radially expanding a tubular member Apparatus and methods for radially expanding a tubular member

2008-07-22

2008-07-22

Neuder, William P (Department: 3672)

Wells

Processes

Perforating, weakening, bending or separating pipe at an...

C166S055000, C166S207000, C166S380000

Reexamination Certificate

active

11682746

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.

REFERENCES:
patent: 3712376 (1973-01-01), Owen et al.
patent: 6029748 (2000-02-01), Forsyth et al.
patent: 7185701 (2007-03-01), Mackenzie

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