E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 31/00 (2006.01)
Patent
CA 2634287
A downhole tool is provided including apparatus for unsticking the tool from the wall of a borehole. The tool may include a housing defining a longitudinal axis and a sleeve coupled to the housing and mounted for rotation relative to the housing, the sleeve having an exterior surface including at least one projection extending radially outwardly with respect to the longitudinal axis. A transmission mechanism may be coupled to and adapted to rotate the sleeve, and a motor may be coupled to the transmission mechanism. A method for unsticking the downhole tool by rotating a sleeve is also disclosed.
Outil de fond de trou comprenant un appareil pour dégager l'outil de la paroi d'un trou de forage. L'outil peut comprendre un boîtier longitudinal ainsi qu'un manchon fixé au boîtier et conçu pour assurer une rotation par rapport au boîtier, la surface extérieure du manchon comprenant au moins une saillie s'étendant radialement vers l'extérieur par rapport à l'axe longitudinal. Un mécanisme de transmission peut être fixé au manchon et adapté pour lui imprimer un mouvement de rotation, et un moteur peut être couplé au mécanisme de transmission. Méthode pour dégager l'outil de fond de trou en imprimant un mouvement de rotation à un manchon.
Hill Bunker M.
Meehan Richard
Zazovsky Alexander F.
Schlumberger Canada Limited
Smart & Biggar
LandOfFree
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