Stroker device

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 4/18 (2006.01) E21B 23/00 (2006.01)

Patent

CA 2759539

A stroker device (1) for use in a borehole (2) in the ground, the stroker (1) at least comprising an actuator (6) arranged for displacing a tool (10) in a longitudinal direction of the borehole (2), and grippers (26) arranged to anchor the stroker (1) to the wall (36) of the borehole (2), alternatively to a pipe wall, wherein the stroker (1) is provided with driving wheels (34) or driving belts for propulsion.

L'invention porte sur un dispositif à percussion (1), destiné à être utilisé dans un trou de forage (2) dans le sol, le dispositif à percussion (1) comprenant au moins un actionneur (6) agencé pour déplacer un outil (10) dans une direction longitudinale du trou de forage (2), et des éléments de saisie (26) agencés pour ancrer le dispositif à percussion (1) à la paroi (36) du trou de forage (2), plutôt qu'à une paroi de tuyau, le dispositif à percussion (1) comportant des roues d'entraînement (34) ou des courroies d'entraînement pour la propulsion.

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