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US 2019/0169967 A1Published application
Downhole casing patch
AssigneeHalliburton Energy Services, Inc.
InventorJack Gammill Clemens
Life of this patent
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Abstract
A casing patch includes a tubular that comprises a first end and a second end opposite the first end, each of the first end and second end comprising an expandable wedge that is deformable into a wellbore casing; and a locating profile formed onto an inner surface of the tubular between the first and second ends.
Claims26
A casing patch, comprising:
- a metal tubular that comprises a first end and a second end opposite the first end;
- a first expandable wedge extending outwardly from the first end of the metal tubular and a second expandable wedge extending outwardly from the second end of the metal tubular, each of the first and second expandable wedges configured to deform into the wellbore casing to form a metal-to-metal seal.
The casing patch of claim 23, wherein the locating profile is machined into the inner surface of the tubular.
A wellbore casing patch system, comprising:
- a power unit comprising a connection for a conveyance from a terranean surface through a wellbore, the power unit providing power independent of the conveyance;
- a piston assembly comprising a rod coupled to the power unit and one or more wedge assemblies coupled to the rod;
- and
- a casing patch that comprises a first end and a second end opposite the first end, each of the first and second ends comprising a wedge expandable into a wellbore casing by one of the wedge assemblies.
1 more element
A method, comprising:
- positioning a tubular component and a deployable power unit near a portion of a wellbore casing in a wellbore;
- aligning a downhole wedge assembly mounted on a piston of the deployable power unit with a downhole ramped end of the tubular component;
- aligning an uphole wedge assembly mounted on the piston with an uphole ramped end of the tubular component;
- and
- expanding the uphole ramped end and the downhole ramped end of the tubular component into the portion of the wellbore casing by urging one of the downhole wedge assembly or the uphole wedge assembly towards the other of the downhole wedge assembly or the uphole wedge assembly.
2 more elements
Dependencies are inferred from the claim text.