A tractor for use in a bore

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 37/04 (2006.01) E21B 23/10 (2006.01) E21B 37/00 (2006.01) F16L 55/38 (2006.01) E21B 23/00 (2006.01)

Patent

CA 2374857

A subsurface apparatus in the form of a tractor is adapted for travel through a bore containing a moving fluid stream. The tractor comprises a body, a drive arrangement for moving the body in a desired direction, a member mounted on the body and adapted to be driven by the moving fluid, and a conversion arrangement for converting movement of the member to drive for the drive arrangement. The drive arrangement may include a contactless magnetic coupling and a harmonic drive.

La présente invention concerne un appareil souterrain se présentant sous la forme d'un tracteur apte à voyager à travers un alésage contenant un flux de fluide en mouvement. Le tracteur de l'invention comprend un corps, un mécanisme d'entraînement destiné à entraîner le corps dans une direction désirée, un élément monté sur le corps et apte à être entraîné par le fluide en mouvement, et un mécanisme de conversion destiné à convertir le mouvement de l'élément en force motrice du mécanisme d'entraînement. Le mécanisme d'entraînement peut comprendre un couplage magnétique sans contact et un réducteur à planétaire.

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