F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 19/00 (2006.01) E21B 17/042 (2006.01) E21B 43/10 (2006.01) F16L 15/04 (2006.01)
Patent
CA 2410425
The invention concerns a threaded joint to be expanded, comprising a lip (5) at the end of the male element (1) and a housing for said lip on the female element (2) to make the threaded joint capable of being sealed and of having a maximum internal passage cross-section after being subjected to diametral expansion by more than 10 %, the free male end surface (9) is socketed before expansion into a partially transverse shoulder surface (10) of the female housing through the matching rebating shapes of said surfaces and the male lip (5) outer peripheral surface (7) is arranged with little play of the internal peripheral surface (8) of the female housing (6). Such a threaded joint is particularly useful for casings and tubings used in oil wells.
Le joint fileté apte à être expansé comprend un lèvre (5) en extrémité de l'élément mâle (1) et un logement pour cette lèvre sur l'élément femelle (2). pour rendre le joint fileté apte à être étanche et à présenter une section de passage intérieur maximale après avoir subi une expansion diamétrale supérieure à 10 %, la surface d'extrémité libre mâle (9) est encastrée avant expansion dans une surface partiellement transversale d'épaulement (10) du logement femelle grâce à la forme en feuillures complémentaires de ces surfaces et la surface périphérique extérieure (7) de lèvre mâle (5) est disposée à faible jeu de la surface périphérique intérieure (8) du logement femelle (6). Un tel joint fileté est particulièrement utile pour les colonnes de tubes utilisées dans les puits d'hydrocarbures.
Coulon Jean-Luc
Noel Thierry
Roussie Gabriel
Varenne Emmanuel
Robic
Vallourec Mannesmann Oil & Gas France
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