Pressure testing plug with layered glass discs

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 33/12 (2006.01)

Patent

CA 2587395

A device is described for a plug (12) for pressure testing of bore holes and the like in a formation or the like, and associated pipe (10) in which the plug is installed in a plug-carrying chamber (14), and the plug (12) seals the passage through the pipe by cooperating with sealing bodies (23, 25), with the underside of the plug (12) being arranged (rests) in a seat at the bottom of the chamber. The plug is characterised in that it comprises a number of layer- formed or tier-formed ring disc elements of a given thickness, on fitted on top of the other.

L'invention concerne un dispositif conçu pour un bouchon (12) servant à vérifier la pression régnant dans des trous de forage et analogue, dans une formation ou analogue, ainsi que pour une conduite correspondante (10) dans laquelle le bouchon est monté, au sein d'une chambre porte-bouchon (14). Le bouchon (12) obture hermétiquement le passage s'étendant à travers la conduite, par coopération avec des corps d'étanchéité (23, 25), la partie inférieure dudit bouchon (12) étant disposée sur (repose contre) un siège à la base de la chambre. Le bouchon selon l'invention est caractérisé en ce qu'il comprend un certain nombre d'éléments discoïdes annulaires se présentant sous la forme de couches ou d'étages d'une épaisseur donnée, fixés les uns sur les autres.

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