F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 15/06 (2006.01) E21B 17/042 (2006.01)
Patent
CA 2749549
The invention concerns a threaded connection comprising a first and a second tubular component, each being provided with a respective male (1) and female (2) end, the male end (1) comprising, on its external peripheral surface, at least one threaded zone (3) and finishing in a terminal surface (7) which is orientated radially with respect to the axis (10) of the connection, the female end (2) comprising, on its internal peripheral surface, at least one threaded zone (4) and finishing in a terminal surface (8) which is orientated radially with respect to the axis (10) of the connection, the male threaded zone (3) having a first portion in which the width of the teeth, CWTp, increases from a value CWTpmin corresponding to the width of the tooth which is closest to the terminal surface (7) of the male end (1) to a value CWTpmax corresponding to the width of the tooth which is furthest from said terminal surface (7), while the width of the teeth CWTb of the female threaded zone (4) decreases from a value CWTbmax corresponding to the width of the tooth which is furthest from the terminal surface (8) of the female end (2) to a value CWTbmin corresponding to the width of the tooth which is closest to said terminal surface (8), such that the threaded zones (3, 4) cooperate in accordance with self-locking make-up, characterized in that:CWTpmin/CWTbmax >= 0.2 and CWTbmin/CWTpmax <= CWTpmin/CWTbmax
L'invention concerne un raccordement fileté comprenant un premier et un second éléments tubulaires, chacun étant doté d'une extrémité mâle (1) et d'une extrémité femelle (2) respectives, l'extrémité mâle (1) comprenant, sur sa surface périphérique externe, au moins une zone filetée (3) et se terminant dans une surface terminale (7) qui est orientée radialement par rapport à l'axe (10) du raccordement, l'extrémité femelle (2) comprenant, sur sa surface périphérique interne, au moins une zone filetée (4) et se terminant dans une surface terminale (8) qui est orientée radialement par rapport à l'axe (10) du raccordement, la zone filetée mâle (3) comprenant une première partie dans laquelle la largeur des dents CWTp augmente depuis une valeur CWTpmin correspondant à la largeur de la dent la plus proche de la surface terminale (7) de l'extrémité mâle (1) jusqu'à une valeur CWTpmax correspondant à la largeur de la dent la plus éloignée de ladite surface terminale (7), alors que la largeur des dents CWTb de la zone filetée femelle (4) diminue depuis une valeur CWTbmax correspondant à la largeur de la dent la plus éloignée de la surface terminale (8) de l'extrémité femelle (2) jusqu'à une valeur CWTbmin correspondant à la largeur de la dent la plus proche de ladite surface terminale (8), de sorte que les zones filetées (3, 4) coopèrent en fonction de la constitution du verrouillage automatique, caractérisé en ce que : CWTpmin/CWTbmax = 0,2 et CWTbmin/CWTpmax = CWTpmin/CWTbmax.
Martin Pierre
Verger Eric
Goudreau Gage Dubuc
Sumitomo Metal Industries Ltd.
Vallourec Mannesmann Oil & Gas France
LandOfFree
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