Friction reducing tool and method for its use in a wellbore

Details Friction reducing tool and method for its use in a wellbore Friction reducing tool and method for its use in a wellbore

E - Fixed Constructions

21

B

E21B 17/10 (2006.01)

Patent

CA 2358997

A friction reducing tool (1) having a generally tubular body (2) and three or more groups of rotatable castors (3) provided about the periphery of the body, wherein the castors of each group are substantially aligned in a longitudinal direction, and wherein each group of castors has at least one castor offset relative to at least one other castor of the same group.

La présente invention concerne un outil de réduction de frottement (1) présentant un corps généralement tubulaire (2) et trois groupes de roulettes rotatives ou plus (3), placées tout autour du corps. Les roulettes de chaque groupe sont pratiquement alignées dans un sens longitudinal, chacun de ces groupes de roulettes présentant au moins une roulette décalée par rapport à au moins une autre roulette du même groupe.

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