Closeable open cell foam for downhole use

Wells – Packers or plugs

Reexamination Certificate

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Details

C166S387000, C277S336000

Reexamination Certificate

active

07552767

ABSTRACT:
A downhole packer or sealing device uses a swelling sealing element that is initially held in a compressed state. Exposure to well or other fluids occurs downhole as the initial restraint on the element is overcome. The element takes on well fluids as it resumes its relaxed position or swells. The element is preferably an open cell material such as foam and has another material in its passages. The material in the passages, when exposed to well fluids, itself grows in size and can get harder. It blocks or seals the passages in the foam so that the swollen foam becomes more like a closed cell material and can retain a seal against a greater range of operating conditions than had its passages remained open or unobstructed with another material.

REFERENCES:
patent: 3918523 (1975-11-01), Stuber
patent: 4137970 (1979-02-01), Laflin et al.
patent: 4612985 (1986-09-01), Rubbo et al.
patent: 4862967 (1989-09-01), Harris
patent: 4919989 (1990-04-01), Colangelo
patent: 4936386 (1990-06-01), Colangelo
patent: 5048605 (1991-09-01), Toon et al.
patent: 5195583 (1993-03-01), Toon et al.
patent: 5803172 (1998-09-01), Rajkovich
patent: 6073692 (2000-06-01), Wood et al.
patent: 6769484 (2004-08-01), Longmore
patent: 6834725 (2004-12-01), Whanger et al.
patent: 6848505 (2005-02-01), Richard et al.
patent: 6854522 (2005-02-01), Brezinski et al.
patent: 7048048 (2006-05-01), Nguyen et al.
patent: 2004/0020662 (2004-02-01), Freyer
patent: 2004/0040703 (2004-03-01), Longmore
patent: 2004/0055758 (2004-03-01), Brezinski et al.
patent: 2004/0055760 (2004-03-01), Nguyen
patent: 2004/0118572 (2004-06-01), Whanger et al.
patent: 2004/0194971 (2004-10-01), Thomson
patent: 2004/0261990 (2004-12-01), Bosma et al.
patent: 2004/0261994 (2004-12-01), Nguyen et al.
patent: 2005/0067170 (2005-03-01), Richard
patent: 2005/0092363 (2005-05-01), Richard et al.
patent: 2005/0092485 (2005-05-01), Brezinski et al.
patent: 2005/0103493 (2005-05-01), Stevens et al.
patent: 2005/0110217 (2005-05-01), Wood et al.
patent: 2006/0042798 (2006-03-01), Badalamenti et al.
patent: 2006/0124304 (2006-06-01), Bloess et al.
patent: 2007/0056795 (2007-03-01), Cox et al.
patent: 2007/0095538 (2007-05-01), Szarka et al.
patent: 2007/0183919 (2007-08-01), Ayer et al.
patent: 2008/0087431 (2008-04-01), Willauer et al.
patent: 04-363499 (1992-12-01), None
patent: 09-151686 (1997-06-01), None
patent: 2000-064764 (2000-02-01), None
patent: WO 2004/018836 (2004-03-01), None
Ali, E., et al., “Effective Gas Shutoff Treatments in a Fractured Carbonate Filed in Oman”, SPE 102244, Sep. 2006, 1-12.
Dubais, A.M., et at., “Field Cases to Demonstrate Application of Through Tubing Inflatable Anchoring Packer to Selectively Stimulate Vertical Dump of Water Injector Wells with Cross Flowing Zones”, SPE 88590, Oct. 2004, 1-8.

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