Tubing injector

Details Tubing injector Tubing injector

E - Fixed Constructions

21

B

E21B 19/22 (2006.01) B65H 51/08 (2006.01)

Patent

CA 2416110

Apparatus for injecting coiled tubing into a bore comprises a rotatable housing (28, 29) having an axis along which coiled tubing is to be translated. A set of rolling elements (12, 14) is rotatably mounted in the housing (28, 29), each rolling element (24) having a skewed axis of rotation with respect to the housing axis and being arranged for rolling contact with an outside diameter of the coiled tubing. The arrangement is such that rotation of the housing (28, 29) relative to the tubing causes the tubing to be moved axially through the rotating housing.

L'invention concerne un appareil servant à injecter une colonne de production enroulée dans un trou, lequel comprend un logement pouvant effectuer des rotations (28, 29) et présentant un axe le long duquel une colonne de production enroulée doit être translatée. Un ensemble d'éléments roulant (12, 14) est monté de manière rotative dans le logement (28, 29), chaque élément roulant (24) présentant un axe de rotation en biais par rapport à l'axe du logement et étant disposé de manière à produire un contact roulant avec un diamètre extérieur de la colonne de production enroulée. L'agencement est tel qu'une rotation du logement (28, 29) par rapport à la colonne entraîne le déplacement axial de la colonne dans le logement en rotation.

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