Apparatus and methods to protect connections

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 17/08 (2006.01) E21B 17/12 (2006.01)

Patent

CA 2589610

The present invention generally relates to a method and apparatus for protecting tubular connections. In one aspect, an expandable tubular connection for use in a wellbore is provided. The tubular connection includes a tubular pin member. The tubular connection also includes a tubular box member having an end portion, wherein the tubular pin member is matable with the tubular box member to form the tubular connection. Additionally, the tubular connection includes a sleeve member disposed on the tubular pin member, wherein the sleeve member is configured to substantially protect the end portion of the tubular box member as the tubular connection is lowered into the wellbore. In yet a further aspect, a method for utilizing a tubular connection in a wellbore is provided.

La présente invention se rapporte de manière générale à une méthode et à un dispositif de protection des raccords tubulaires. Dans un aspect, un raccord tubulaire extensible pour puits de forage est fourni. Ce raccord comprend une broche tubulaire. Ledit raccord tubulaire comprend aussi une boîte tubulaire comportant une extrémité, dans laquelle la broche tubulaire peut s'accoupler avec la boîte tubulaire pour former le raccord tubulaire. De plus, le raccord comprend un manchon placé sur la broche, où le manchon est configuré pour protéger en grande partie l'extrémité de la boîte tubulaire, lorsque le raccord tubulaire est abaissé dans le puits de forage. Dans un autre aspect, une méthode permet d'utiliser un raccord tubulaire dans un puits de forage.

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