E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/00 (2006.01) F16J 15/08 (2006.01) F16J 15/32 (2006.01)
Patent
CA 2687824
A self-energizing seal element includes at least one inside interference surface having a dimension smaller than an inside dimension of an annulus in which the seal is to be disposed in use, at least one outside interference surface hav ing a dimension larger than an outside dimension of the annulus in which the seal is to be disposed in use, the at least one inside interference surface being axially offset from the at least one outside interference surface and at least one angular flange extending between the at least one outside interference surface and the at least one inside interference surface and method for sealing.
L'invention concerne un élément d'étanchéité à auto-activation comprenant au moins une surface interne intermédiaire d'une dimension inférieure à la dimension interne d'un espace annulaire dans lequel doit être positionné le joint en cours d'utilisation, au moins une surface externe intermédiaire d'une dimension supérieure à la dimension externe de l'espace annulaire dans lequel le joint doit être positionné en cours d'utilisation. Ladite surface interne intermédiaire est décalée de manière axiale par rapport à ladite surface externe intermédiaire et au moins un rebord angulaire s'étend entre ladite surface externe intermédiaire et ladite surface interne intermédiaire. L'invention concerne également un procédé d'étanchéité.
Baker Hughes Incorporated
Sim & Mcburney
LandOfFree
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