E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/06 (2006.01)
Patent
CA 2663969
The well bore control valve comprises a housing (12) defining a throughbore (14), the throughbore adapted to receive a first tubular. The valve further comprises first (18) and second gates (20) located within the housing, the gates being movable in different directions transverse to the throughbore between the throughbore open position and the throughbore closed position. Movement of the gates from the throughbore open position to the throughbore closed position, in use, shares a tubular located between the gates. The valve also comprises a first seal seat (22) performing a seal of one of the gates in the throughbore closed position to seal the throughbore. In one embodiment, the gates are axially movable with respect to the throughbore.
Vanne de régulation de forage de puits selon l'invention comprenant un logement (12) définissant un alésage (14), lequel alésage est adapté pour recevoir un premier élément tubulaire. La vanne comprend en outre une première (18) et une seconde porte (20) situées à l'intérieur du logement, lesquelles portes sont mobiles dans différentes directions transverses à l'alésage entre la position ouverte de l'alésage et la position fermée de l'alésage. Le mouvement des portes à partir de la position ouverte de l'alésage vers la position fermée de l'alésage, lors de l'utilisation, partage un élément tubulaire situé entre les portes. La vanne comprend également un premier siège d'étanchéité (22) permettant l'étanchéité de l'une des portes dans la position fermée de l'alésage pour étanchéifier l'alésage. Selon un mode de réalisation, les portes sont axialement mobiles par rapport à l'alésage.
Enovate Systems Limited
Sim & Mcburney
LandOfFree
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