Apparatus and methods for radially expanding a tubular member
AssigneeE2 Tech Limited
InventorAlan MacKenzie
Life of this patent
Estimating the term…
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.
Claims20
(canceled)
(canceled)
An assembly for radially expanding a tubular in a wellbore, comprising:
- a conveying pipe;
- an expansion cone coupled to the conveying pipe, wherein the expansion cone is movable relative to the conveying pipe;
- and
- a resettable anchor coupled to the conveying pipe and fixed in longitudinal position relative to the conveying pipe.
An assembly for radially expanding a tubular in a wellbore, comprising:
- an expansion cone fixed in longitudinal position relative to a support member;
- and
- a resettable anchor disposed on an outside surface of a support member, wherein the support member is moveable relative to the anchor.
Dependencies are inferred from the claim text.