Method for installing wellbore string devices

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 17/02 (2006.01) E21B 17/10 (2006.01)

Patent

CA 2737931

A method for securing a wellbore siring device to a wellbore liner tubular employs a swelling elastomer to firictionally 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.

L'invention concerne un procédé pour fixer un dispositif de ligne de trou de forage à un élément tubulaire de doublure de trou de forage, qui emploie un élastomère expansible pour agripper par frottement un espace entre le dispositif de ligne de trou de forage et l'élément tubulaire de doublure. L'élastomère expansible est positionné entre le dispositif de ligne de trou de forage et l'élément tubulaire de doublure de trou de forage, et est ensuite activé pour gonfler afin de faire entrer le dispositif de ligne de trou de forage en prise avec l'élément tubulaire de doublure de trou de forage. Le dispositif de ligne de trou de forage peut être un centreur, une bande d'usure ou une couronne de couple.

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