G - Physics – 01 – M
Patent
G - Physics
01
M
G01M 3/02 (2006.01)
Patent
CA 2622149
A cap (10) comprising a female threading (11) matched with that (2) of a first element is made up onto the first male threaded element (1) of a component to be tested so as to compress a sealing ring (16) between metal surfaces (7, 15) of the first element and the cap, and a test pressure is established inside said component, the male element (1) having an annular lip (3) which is capable of deforming radially outwardly under the effect of said test pressure. Between the radially outward surface (6) of the lip (3) and the facing surface (19) of the cap, at the end of makeup there exists a clearance having a value (j) which has been selected sufficiently small so that, under the effect of the test pressure, the lip bears on said facing surface without undergoing plastic deformation. Application to tubular string accessories for hydrocarbon wells.
L'invention concerne un bouchon (10) comprenant un filetage femelle (11) conjugué au filetage (2) d~un premier élément est réalisé sur le premier élément mâle fileté (1) d~un composant à tester de façon à comprimer une bague d~étanchéité (16) entre des surfaces métalliques (7, 15) du premier élément et du bouchon, une pression d~essai étant créée à l~intérieur dudit composant, l~élément mâle (1) ayant une lèvre annulaire (3) capable de se déformer radialement vers l~extérieur sous l~effet de ladite pression d~essai. Entre la surface radialement externe (6) de la lèvre (3) et la surface opposée (19) du bouchon, à l~extrémité de la formation, un dégagement, dont la dimension (j) a été sélectionnée pour être assez petite, fait que, sous l~effet de la pression d~essai, la lèvre s~appuie sur ladite surface opposée sans subir de déformation élastique. Le domaine d~application de la présente invention est celui des accessoires de tiges tubulaires pour puits d~hydrocarbures.
Robic
Vallourec Mannesmann Oil & Gas France
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