Liquid and gas tight threaded tubular connection

Details Liquid and gas tight threaded tubular connection Liquid and gas tight threaded tubular connection

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 15/04 (2006.01)

Patent

CA 2617640

A first axial abutment surface (6) formed at the free end of an annular lip (5) of a threaded male element (1) and a second axial abutment surface (9) formed at the end of a housing (7) of a threaded female element (2) have a same axial half-sections (S) the inclination of which varies progressively in the radial direction. Such a configuration of the axial abutment surfaces optimizes the radial thrust exerted on the end of the lip depending on its thickness, in order to obtain an increased radial interference between the respective sealing surfaces (10, 12) of both elements. Application to hydrocarbon wells.

La présente invention concerne une première surface de butée axiale (6) formée à l~extrémité libre d~une lèvre annulaire (5) d~un élément mâle fileté (1) et une seconde surface de butée axiale (9) formée à l~extrémité d~un logement (7) d~un élément femelle fileté (2) qui comportent les mêmes demi-sections axiales (S) dont l~inclinaison varie progressivement dans la direction radiale. Une telle configuration des surfaces de butée axiales optimise la poussée radiale exercée sur l~extrémité de la lèvre en fonction de son épaisseur, afin d~obtenir une interférence radiale accrue entre les surfaces de scellement respectives (10, 12) des deux éléments. Application dans les puits d~hydrocarbures.

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