Hydraulic running tool with torque dampener

Details Hydraulic running tool with torque dampener Hydraulic running tool with torque dampener

E - Fixed Constructions

21

B

E21B 23/00 (2006.01) E21B 17/06 (2006.01) E21B 43/10 (2006.01)

Patent

CA 2427453

The present invention generally provides a running tool (100) comprising a torque-dampening system. A first portion (116) and a second portion (118) of the running tool are operably related by a torsion interface (128). In one embodiment, the torsion interface includes a plurality of interlaced teeth (130A,130B) disposed on the each of the first and second portions. During relative rotation of the first and second portions, the teeth engage and "ride up" on one another, thereby forcing the first and second portions in opposite axial directions. At least one of the portions houses a flow restrictor assembly (264) adapted to restrict fluid flow from one region to another during the axial movement of the portions. Accordingly, the relative rotation between the portions is inhibited, or dampened.

L'invention concerne un outil (100) comprenant un système d'amortissement du couple. On met en route les première (116) et seconde (118) parties de l'outil de cette invention grâce à une interface de torsion (128). Selon un mode de réalisation, cette interface comprend une pluralité de dents qui sont en prise (130A, 130B), disposées sur chacune des deux parties. Pendant la rotation relative des première et seconde parties, les dents s'imbriquent les unes avec les autres et se superposent, ce qui a pour effet de pousser les première et seconde parties dans des directions axiales opposées. Au moins l'une des parties abrite un dispositif limitateur d'écoulement (264) conçu pour limiter l'écoulement fluide d'une zone à l'autre pendant le mouvement axial des parties. Ainsi, la rotation relative entre les parties est inhibée ou amortie.

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