Threated connection for drilling and operating hydrocarbon...

Details Threated connection for drilling and operating hydrocarbon... Threated connection for drilling and operating hydrocarbon...

E - Fixed Constructions

21

B

E21B 17/042 (2006.01)

Patent

CA 2760753

The invention concerns a set for manufacturing a threaded connection, comprising a first and a second tubular component with an axis of revolution (10), one of their ends (1, 2) being provided with a threaded zone (3; 4) formed on the external or internal peripheral surface of the component depending on whether the threaded end is of the male or female type, said ends (1, 2) finishing in a terminal surface (7, 8), said threaded zones (3; 4) comprising, over at least a portion, threads (32, 42) comprising, viewed in longitudinal section passing through the axis of revolution (10) of the tubular components, a thread crest (35, 45), a thread root (36, 46), a load flank (30; 40) and a stabbing flank (31; 41), the width of the thread crests (35, 45) of each tubular component reducing in the direction of the terminal surface (7; 8) of the tubular component under consideration, while the width of the thread roots (36, 46) increases, the profiles of the load flanks and/or the stabbing flanks of the male and female threaded zones, viewed in longitudinal section passing through the axis of revolution (10) of the tubular components, each having at least one identical portion (E, E') such that the male and female threads can be fitted one into the other over said identical portions (E, E') when the first and second tubular components are made up one into the other, characterized in that the identical portions (E, E') of the male and female ends (1, 2) are radially offset with respect to each other.

L'invention concerne un ensemble pour la fabrication d'un raccord fileté comprenant un premier et un deuxième composante tubulaire présentant un axe de révolution (10), une de leurs extrémités (1,2) étant pourvue d'une zone filetée (3, 4) formée sur les surfaces périphériques externe ou interne du composant selon le type mâle ou femelle de l'extrémité filetée. Les extrémités (1, 2) se terminent par une surface terminale (7, 8) et les zones filetées (3, 4) comprennent, sur au moins une partie, des filets (32, 42) comprenant -- vus en coupe longitudinale traversant l'axe de révolution (10) des composants tubulaires -- une crête (35, 45), une base (36, 46), un flanc de charge (30; 40) et un flanc de guidage (31; 41), la largeur des crêtes (35, 45) de chaque composant tubulaire diminuant en direction de la surface terminale (7, 8) du composant tubulaire en question, alors que la largeur des bases (36, 46) augmente; les profils des flancs de charge et/ou des flancs de guidage des zones filetées mâle et femelle, vus en coupe longitudinale traversant l'axe de révolution (10) des composants tubulaires, ont chacun au moins une partie identique (E, E') de sorte que les filets mâle et femelle puissent s'adapter les uns dans les autres sur ces parties identiques (E, E') lorsque les premier et deuxième composants tubulaires s'adaptent l'un dans l'autre, et sont caractérisés en ce que les parties identiques (E, E') des extrémités mâle et femelle (1, 2) sont décalées radialement l'une par rapport à l'autre.

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