Elevators

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 19/06 (2006.01) E21B 19/02 (2006.01) E21B 19/16 (2006.01) B66C 13/04 (2006.01) B66C 13/08 (2006.01)

Patent

CA 2586347

An apparatus for facilitating the connection or disconnection of a tubular to or from a string of tubulars, which apparatus comprises a weight compensating device (20) which can be suspended from a travelling block (6) or a top drive is disclosed. In one embodiment, said apparatus further comprises at least one bail (2) which can support a primary elevator (10) and which can, in use, be raised and lowered by said weight compensating device (20) to enable a tubular (32) to be raised and lowered with respect to a string of tubulars and which can move to a load bearing position in which it can raise and lower said string of tubulars. This invention also provides a method, a device and an elevator.

Appareil permettant de faciliter la connexion d'un élément tubulaire avec un train d'éléments tubulaires ou sa déconnexion. Cet appareil comprend un dispositif de compensation (20) de poids, qui peut être suspendu à partir d'un bloc mobile (6) ou d'un dispositif d'entraînement supérieur, caractérisé en ce que ledit appareil comprend au moins une anse (2) qui peut supporter un élévateur primaire (10), qui peut en cours de fonctionnement, être soulevée et abaissée par le dispositif de compensation (20) de poids, de façon à soulever et abaisser un élément tubulaire (32) par rapport à un train d'éléments tubulaires, et qui peut se déplacer vers une position de support de charge dans laquelle ladite anse peut soulever et abaisser ledit train d'éléments tubulaires. L'invention concerne également un procédé, un dispositif et un élévateur.

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