E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/128 (2006.01)
Patent
CA 2708715
A sealing apparatus for sealing a well bore is described. The sealing apparatus comprises a sealing element adapted to be moved from a run-in configuration to a set configuration, a first back- up layer and at least one second back-up layer sand-wiched between the sealing element and the first back-tip layer. The at least one second bark-up layer comprises a thinner material than the first back-up layer. The first back-up layer and the at least one second back-up layer are adapted to be moved from the run-in configuration to the set configuration under the action of the sealing element.
L'invention concerne un outil d'étanchéification servant à étanchéifier un puits de forage. L'outil d'étanchéification comprend: un élément d'étanchéification conçu pour passer d'une configuration rentrée à une configuration déployée; une première couche de renfort et au moins une seconde couche de renfort prise en sandwich entre l'élément d'étanchéification et la première couche de renfort. La seconde couche de renfort comprend un matériau plus mince que celui de la première couche de renfort. La première couche de renfort et la seconde couche de renfort sont conçues pour passer de la configuration rentrée à la configuration déployée sous l'action de l'élément d'étanchéification.
Marks & Clerk
Rubberatkins Limited
LandOfFree
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