E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 19/16 (2006.01) E21B 19/06 (2006.01) E21B 19/08 (2006.01) E21B 19/086 (2006.01)
Patent
CA 2316307
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 (12, 13, 12', 13') which can be suspended from a travelling block (TB) or a top drive (TD) or a swivel, characterised in that said apparatus further comprises a member (11) which can support a primary elevator (31) and which can, in use, be raised and lowered by said weight compensating device (12, 13, 12', 13') to enable a tubular (JC) to be raised and lowered with respect to a string of tubulars (ST) and which can move to a load bearing position in which it can raise and lower said string of tubulars.
L'invention concerne un appareil pour faciliter l'accouplement d'un tube à un train de tubes ou son désaccouplement dudit train. Ledit appareil comprend un dispositif de compensation de poids (12, 13, 12', 13') qui peut être suspendu à une moufle mobile (TB), à un entraînement supérieur (TD) ou à un tourillon. Ledit appareil se caractérise en ce qu'il comprend un élément (11) pouvant supporter un élévateur primaire (31) et, lorsque l'appareil est utilisé, être monté ou descendu par ledit dispositif de compensation de poids (12, 13, 12', 13'), de sorte qu'un tube (JC) peut être monté et descendu par rapport à un train de tubes (ST), et pouvant également se mettre dans une position porteuse dans laquelle il peut faire monter ou descendre ledit train de tubes.
Albright Steven Lee
Bearb Jean Donald
Birdwell John Cleveland
Hayes Michael Warren
Leicht Frederick Marion
Marks & Clerk
Weatherford/lamb Inc.
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