A downhole assembly

Details A downhole assembly A downhole assembly

E - Fixed Constructions

21

B

E21B 17/07 (2006.01) E21B 17/10 (2006.01) E21B 41/00 (2006.01)

Patent

CA 2735963

A downhole assembly for insertion into a borehole comprising an articulated mandrel (2, 3), a passive (19) and an active (24) damping mechanism operating on said mandrel.

L'invention porte sur un ensemble de fond de trou destiné à être introduit dans un trou de forage, l'ensemble de fond de trou comprenant un mandrin articulé, un mécanisme d'amortissement passif et un mécanisme d'amortissement actif agissant sur ledit mandrin.

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