Set for producing a threaded connection for drilling and...

Details Set for producing a threaded connection for drilling and... Set for producing a threaded connection for drilling and...

E - Fixed Constructions

21

B

E21B 17/042 (2006.01)

Patent

CA 2760752

The invention concerns a set for producing 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) which is orientated radially with respect to the axis of revolution (10) of the tubular components, said threaded zones (3; 4) comprising 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, characterized in that the lead of the male stabbing flanks and/or load flanks is different from the lead of the female stabbing flanks and/or load flanks. The invention also pertains to a threaded connection.

La présente invention concerne un ensemble pour réaliser une connexion filetée, qui comprend des premier et second composants tubulaires dotés d'un axe de révolution (10), une de leurs extrémités (1, 2) étant pourvue d'une zone filetée (3 ; 4) formée sur la surface périphérique externe ou interne du composant suivant que l'extrémité filetée soit du type mâle ou femelle, lesdites extrémités (1, 2) se terminant en une surface terminale (7, 8) qui est orientée de façon radiale par rapport à l'axe de révolution (10) des composants tubulaires, lesdites zones filetées (3 ; 4) comprenant des filetages (32 ; 42) qui comprennent, vus en coupe longitudinale passant à travers l'axe de révolution (10) des composants tubulaires, un sommet de filet (35, 45), un fond de filet (36, 46), un flanc de charge (30 ; 40) et un flanc de guidage (31 ; 41), la largeur des sommets de filet (35, 45) de chaque composant tubulaire diminuant dans la direction de la surface terminale (7 ; 8) du composant tubulaire en considération, alors que la largeur des fonds de filet (36, 46) augmente. L'ensemble est caractérisé en ce que le pas réel des flancs de guidage et/ou flancs de charge mâles est différent du pas des flancs de guidage et/ou flancs de charge femelles. La présente invention concerne également une connexion filetée.

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