Rotary vector gear for use in rotary steerable tools

Details Rotary vector gear for use in rotary steerable tools Rotary vector gear for use in rotary steerable tools

E - Fixed Constructions

21

B

E21B 7/04 (2006.01)

Patent

CA 2554147

A rotary vector gear for controlling longitudinal axis offset about a central longitudinal axis is disclosed. The device uses single rotary motion through a rotary vector gear to produce hypotrochoidic offset similar to a flower petal and is capable or ready return to zero offset. The device may be used in downhole rotary steerable oil and gas drilling tools and in computer controlled milling machines for providing controlled offset.

La présente invention a trait à un engrenage de vecteur rotatif pour le contrôle du décalage d'axe longitudinal autour d'un axe longitudinal central. Le dispositif utilise un mouvement rotatif simple grâce à un engrenage de vecteur rotatif pour produire un décalage hypotrochoïde semblable au pétale d'une fleur et est capable ou prêt à retourner à un décalage nul. Le dispositif peut être utilisé dans des outils orientables de forage de fond de puits de pétrole et de gaz et dans des machines de broyage commandées par ordinateur pour assurer un décalage contrôlé.

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