F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 15/00 (2006.01)
Patent
CA 2558761
A threaded tubular connection comprises a male tubular element comprising a male threaded portion and a female tubular element comprising a female threaded portion which cooperates by screwing with the male threaded portion. In accordance with the invention, the threaded connection comprises at least one transfer zone which can transfer bending loads between said elements and which is axially spaced from said threaded portions, in which the male and female elements have an undulating surface and a smooth surface facing each other, the undulating surface (5) defining a series of rounded annular ribs (7) which come into contact with the smooth surface with a radial interference fit. Application to production strings for hydrocarbon wells.
Une connexion tubulaire filetée comprend un élément tubulaire mâle constitué d'une partie filetée mâle et un élément tubulaire femelle constitué d'une partie filetée femelle qui coopère par vissage avec la partie filetée mâle. Selon cette invention, cette connexion filetée comprend au moins une zone de transfert qui peut transférer des charges de courbure entre ces éléments et qui est axialement espacée de ces parties filetées, dans laquelle les éléments mâle et femelle possèdent une surface ondulée et une surface lisse qui se font face entre elles, la surface ondulée (5) définissant une série de nervures annulaire arrondies (7) qui viennent en contact avec la surface lisse avec une adaptation d'interférence radiale. Cette invention concerne aussi une application de production de tiges de puits d'hydrocarbure.
Massaglia Jacky
Roussie Gabriel
Robic
Sumitomo Metal Industries Ltd.
Vallourec Mannesmann Oil & Gas France
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