Method for installing wellbore string devices

Details Method for installing wellbore string devices Method for installing wellbore string devices

2011-05-17

2011-05-17

Thompson, Kenneth (Department: 3672)

Wells

Expansible anchor or casing

Bowed anchor means

C166S206000, C166S243000

Reexamination Certificate

active

07942199

ABSTRACT:
A method for securing a wellbore string device to a wellbore liner tubular employs a swelling elastomer to frictionally grip a gap between the wellbore string device and the liner tubular. The swelling elastomer is positioned between the wellbore string device and the wellbore liner tubular, then activated to cause it to swell to engage the wellbore string device with the wellbore liner tubular. The wellbore string device may be a centralizer, a wear band or a torque ring.

REFERENCES:
patent: 1286141 (1918-11-01), Stumpf
patent: 6840325 (2005-01-01), Stephenson
patent: 2006/0124304 (2006-06-01), Bloess
patent: 2007/0181298 (2007-08-01), Sheiretov et al.
patent: 2008/0000646 (2008-01-01), Thomson
patent: 2565220 (2008-04-01), None
patent: WO 2008062177 (2008-05-01), None

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