Frangible pressure seal

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 33/10 (2006.01) E21B 33/129 (2006.01) E21B 34/06 (2006.01)

Patent

CA 2228728

A frangible sealing disk for use downhole in combination with packer components. The sealing disk is a molded ceramic disk having a circular seating face and extending centrally through a dome-shaped seal. The seal is preferred for use in combination with a packer assembly for pressure sealing the borehole, either up hole or down, so that the seal may be broken away easily when it is desired to remove or reset the packer assembly.

Disque d'étanchéité frangible utilisé au fond avec des composants d'un packer. Il s'agit d'un disque d'étanchéité moulé en céramique qui possède un surface de siège circulaire et qui, dans sa partie centrale, a la forme d'un dôme. Le disque d'étanchéité est utilisé avec un packer pour isoler le puits de la pression, que ce soit une pression vers le haut ou vers le fond du puits, de sorte qu'il peut être facilement rompu lorsqu'on veut déplacer ou réinstaller le packer.

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