Downhole apparatus and support structure therefor

Details Downhole apparatus and support structure therefor Downhole apparatus and support structure therefor

E - Fixed Constructions

21

B

E21B 33/12 (2006.01)

Patent

CA 2668582

A downhole apparatus having a radially expanding portion and a support structure (70) are described. The support structure comprises an attachment means (72) for coupling to the apparatus and a support portion (76) configured to be deployed from a first unexpanded condition to a second expanded condition by expansion of the apparatus. In one aspect of the invention, the downhole apparatus is expanded by exposing the swellable material to at least one predetermined fluid, and the support structure abuts the swellable material in its expanded form. A method of use and its application to a well packer, a hanging member, an anchor and a centralising apparatus are described.

L'invention concerne un appareil de fond comprenant une partie à dilatation radiale, ainsi qu'une structure support (70). Cette structure support comprend un moyen de fixation (72) destiné à être couplé à l'appareil, ainsi qu'une partie support (76) conçue pour être déployée d'un premier état non dilaté à un second état dilaté par dilatation de l'appareil. Dans un aspect de l'invention, l'appareil de fond est dilaté par exposition du matériau dilatable à au moins un fluide prédéterminé, la structure support étant adjacente au matériau dilatable sous sa forme dilatée. L'invention concerne également un procédé d'utilisation de cet appareil de fond et son application à une garniture d'étanchéité de puits, un élément de suspension, un dispositif d'ancrage et un appareil de centrage.

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