A downhole device

Details A downhole device A downhole device

E - Fixed Constructions

21

B

E21B 17/07 (2006.01) E21B 19/08 (2006.01)

Patent

CA 2735967

A downhole device comprising a mandrel (21) suitable for connection to a drilling assembly (3), a housing (22) surrounding said mandrel said housing being suitable for connection to the alternate end of a drilling assembly and a compensating mechanism (25) configured to adjust an axial force applied to said mandrel by changing the relative position of the mandrel with respect to the housing.

L'invention porte sur un dispositif de fond de trou comprenant un mandrin approprié pour être relié à un ensemble de forage, un boîtier entourant ledit mandrin, ledit boîtier étant approprié pour être relié à l'autre extrémité d'un ensemble de forage, et un mécanisme de compensation configuré pour ajuster une force axiale appliquée audit mandrin par changement de la position relative du mandrin par rapport au boîtier.

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