Downhole apparatus with a swellable support structure

Wells – Processes – Assembling well part

Reexamination Certificate

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Details

C166S207000

Reexamination Certificate

active

07896085

ABSTRACT:
A downhole apparatus having a radially expanding portion and a support structure are described. The support structure comprises an attachment means for coupling to the apparatus and a support portion configured to be deployed from a first unexpanded condition to a second expanded condition by expansion of the apparatus. In one aspect of the invention, the downhole apparatus is expanded by exposing the swellable material to at least one predetermined fluid, and the support structure abuts the swellable material in its expanded form. A method of use and its application to a well packer, a hanging member, an anchor and a centralising apparatus are described.

REFERENCES:
patent: 4892144 (1990-01-01), Coone
patent: 5027894 (1991-07-01), Coone et al.
patent: 6581682 (2003-06-01), Parent et al.
patent: 2008/0110626 (2008-05-01), Allison et al.
patent: 1437480 (2004-07-01), None
patent: 99/49180 (1999-09-01), None
patent: 2006/121340 (2006-11-01), None
International Written Opinion and Search Report regarding corresponding application No. PCT/GB2007/004453, dated Mar. 18, 2008.

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