Fixture for evaluating a metal-to-metal seal between tubular...

G - Physics – 01 – M

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G01M 3/04 (2006.01)

Patent

CA 2758044

A fixture for evaluating a metal-to-metal seal. A first metal seal surface and a second metal seal surface are brought into initial contact by engagement of a male connection of a first tubular component and a female connection of a second tubular component to form a metal-to- metal seal. A contact pressure regulator is provided to alter the contact load acting in the interfacial region between the first metal seal surface and the second metal seal surface in a predictable manner. An inlet passage is provided to communicate test fluid to an inlet side of the metal-to-metal seal. An outlet passage is provided on an outlet side of the metal--to-metal seal. In accordance with the method, a capacity of the metal-to-metal seal is expressed as the pressure differential re-quired to just induce leakage given a measure of absolute contact load greater than zero.

L'invention porte sur un montage pour évaluer un joint métal sur métal. Une première surface de joint métallique et une seconde surface de joint métallique sont amenées en contact initial par prise d'un raccord mâle d'un premier composant tubulaire et d'un raccord femelle d'un second composant tubulaire pour former un joint métal sur métal. Un régulateur de pression de contact est prévu pour altérer la charge de contact agissant dans la région d'interface entre la première surface de joint métallique et la seconde surface de joint métallique d'une manière apte à être prédite. Un passage d'entrée est prévu pour communiquer un fluide d'essai vers un côté d'entrée du joint métal sur métal. Un passage de sortie est prévu sur un côté de sortie du joint métal sur métal. Selon le procédé, une capacité du joint métal sur métal est exprimée comme étant la pression différentielle requise pour induire uniquement une fuite à une mesure donnée de charge de contact absolue supérieure à zéro.

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