Stabiliser for a downhole apparatus

Details Stabiliser for a downhole apparatus Stabiliser for a downhole apparatus

E - Fixed Constructions

21

B

E21B 17/10 (2006.01)

Patent

CA 2174077

A downhole apparatus, such as a stabiliser, having rotary bearing members in the form of bearing balls (36) which are each mounted for omni-directional movement within a bearing assembly (20) mounted on the body (12) of the apparatus. Each bearing assembly (20) comprises a housing (22) containing a plurality of circulating balls (28) confined to the interior of the housing and forming a supporting bed for the bearing ball (36).

Un appareil de fond, tel qu'un stabilisateur, est doté d'éléments d'appui rotatifs sous forme de billes de roulement (36), chaque bille étant montée de manière à pouvoir se déplacer dans toutes les directions à l'intérieur d'un ensemble roulement (20) monté sur le corps (12) de l'appareil. Chaque ensemble roulement (20) comprend un logement (22) contenant une pluralité de billes circulantes (28) enfermées à l'intérieur du logement et formant une surface d'appui pour la bille de roulement (36).

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