Casing patch

Details Casing patch Casing patch

2011-01-04

2011-01-04

Neuder, William P (Department: 3672)

Wells

Expansible anchor or casing

Expansible casing

C166S277000

Reexamination Certificate

active

07861775

ABSTRACT:
A casing patch includes a deformable seal configurable to a deformed and undeformed position for sealing and unsealing respectively with a target stub and a pressure based subsystem in operable communication with the deformable seal. The patch may also contain a stop ring to prevent overcompression of the seal.

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patent: 2004/0159445 (2004-08-01), Hazel et al.
Tallin, A.G., et al.; “A Fitness for Purpose Assessment of the Use of a Modified Expandable Casing Patch As a Barrier Against H2S Exposure”; AADE 2005 National Technical Conference and Exhibition; Houston, TX; Apr. 5-7, 2005; 6 Pgs.
Weatherford Fishing and Rental Tool Services; “Homco Internal Steel Liner Casing Patch”; Brochure 10.00; Copyright 1995; 4 Pages.

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