Delivery method and compositions

F - Mech Eng,Light,Heat,Weapons – 16 – L

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F16L 55/164 (2006.01)

Patent

CA 2758336

A method of delivering a concentrated quantity of sealing elements to a leak site in a vessel (1) comprises the steps of deploying a flexible body of material (4) and at least one sealing element (3) into fluid (2) flowing within the vessel upstream of the leak site whereby the body of material transports the sealing elements through the vessel to the leak site where the body of material is drawn to the leak by fluid flow created by a pressure differential at the leak site, and wherein the sealing element(s) are constrained by the body of material at the leak site such that the sealing element(s) become(s) entrained within the leak.

L'invention porte sur un procédé de distribution d'une quantité concentrée d'éléments d'étanchéité à un site de fuite dans un récipient (1), lequel procédé comprend les étapes de déploiement d'un corps souple de matériau (4) et d'au moins un élément d'étanchéité (3) dans un fluide (2) s'écoulant à l'intérieur du récipient, en amont du site de fuite, ce par quoi le corps de matériau transporte les éléments d'étanchéité à travers le récipient jusqu'au site de fuite, où le corps de matériau est aspiré dans la fuite par l'écoulement de fluide créé par un différentiel de pression au niveau du site de fuite, et le ou les éléments d'étanchéité étant retenus par le corps de matériau au niveau du site de fuite de telle sorte que le ou les éléments d'étanchéité sont entrainés à l'intérieur de la fuite.

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