E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 23/00 (2006.01) E21B 23/01 (2006.01) E21B 33/12 (2006.01) E21B 33/128 (2006.01) E21B 33/129 (2006.01)
Patent
CA 2218917
A resilient sealing element (26) is adapted for connection to a well tool, with an integral anchoring device, such as a slip (28), embedded therein. When compressive forces are applied thereto the sealing element (26) compresses and moves its outside diameter and the slip (28) into sealable engagement with the inside wall of a well tubing or casing (42). Releasing the sealing and anchoring element is accomplished by applying tension to a wire (22) which passes longitudinally therethrough to cause retraction of the slip.
L'invention porte sur un élément d'étanchéité élastique (26) destiné à être fixé à un outil de puits de forage, avec un dispositif d'ancrage intégré, par exemple un coin de retenue (28). Lorsque des forces de compression sont appliquées, l'élément d'étanchéité (26) se comprime et son diamètre extérieur s'agrandit avec le coin (28) pour venir en contact d'une manière étanche avec la paroi interne d'un tubage de puits (42). La libération de l'élément d'étanchéité et d'ancrage se fait par application d'une tension à un fil métallique (22) qui traverse ledit élément longitudinalement, ce qui provoque le retrait du coin de retenue.
Borden Ladner Gervais Llp
Camco International Inc.
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