E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 23/00 (2006.01) E21B 33/03 (2006.01)
Patent
CA 2713714
A wellhead system is provided. In one embodiment, the wellhead system includes a bypass sleeve (100) for temporarily isolating portions of a wellhead assembly from pressurized f racing fluid. The bypass sleeve may include a generally tubular body (102) having a tool interface, a lock ring (104) disposed at least partially around the body, and an anti-rotation device (106, 108) coupled to the body. In some embodiments, the anti-rotation device includes a resilient member (200) disposed in a cavity (202) in the body, and an anti- rotation member (197) biased away from the body by the resilient member. The anti- rotation member of some embodiments extends radially outward from the body.
L'invention concerne un système de tête de puits. Dans un mode de réalisation, le système de tête de puits comprend un manchon de dérivation (100) pour isoler temporairement des parties d'un ensemble tête de puits d'un fluide de fracturation sous pression. Le manchon de dérivation peut comprendre un corps généralement tubulaire (102) ayant une interface outil, un anneau de verrouillage (104) disposé au moins partiellement autour du corps, et un dispositif anti-rotation (106, 108) relié au corps. Dans certains modes de réalisation, le dispositif anti-rotation comprend un élément élastique (200) disposé dans une cavité (202) du corps, et un élément anti-rotation (197) sollicité loin du corps par l'élément élastique. L'élément anti-rotation de certains modes de réalisation s'étend radialement vers l'extérieur à partir du corps.
Guidry Kirk Paul
Nguyen Dennis P.
Painter Jay Patrick
Cameron International Corporation
Tomkins Donald V.
LandOfFree
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