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    SEALED TUBULAR CONNECTION USED IN THE OIL INDUSTRY
    1.
    发明公开
    SEALED TUBULAR CONNECTION USED IN THE OIL INDUSTRY 有权
    在石油工业中用过的密封管道连接

    公开(公告)号：EP2370722A1

    公开(公告)日：2011-10-05

    申请号：EP09796976.0

    申请日：2009-12-28

    申请人： Vallourec Mannesmann Oil&Gas France ,  Sumitomo Metal Industries, Ltd.

    发明人： PATUREAU, Claire ,  TARTAR, Olivier

    IPC分类号： F16L15/04 ,  E21B17/042

    CPC分类号： F16L15/002

    摘要： The invention concerns a sealed threaded connection comprising a first and a second tubular component, each being provided with a respective male end (1) and female end (2), the male end (1) comprising, on its outer peripheral surface, at least one threaded zone (3), and at least one sealing surface (5,11) and finishing in a terminal surface (7) which is orientated transversely to the axis (10) of the connection, the female end (2) comprising, on its inner peripheral surface, at least one threaded zone (4) cooperating with the threaded zone (3) of the male end (1) by make up, the threaded zones (3, 4) being inclined in accordance with a conical generatrix (20) forming an angle of taper alpha; with the axis (10) of the connection, at least one sealing surface (6, 12) being positioned so as to cooperate with the at least one sealing surface (5, 11) of the male end (1) along a radially interfering contact zone, and finishing in a terminal surface (8) which is transversely orientated with respect to the axis (10) of the connection, the tangent at the contact zone of the sealing surface (5, 6; 11, 12) being inclined along a line (30) forming an angle beta; with the axis (10) of the threaded connection, characterized in that the inclination defined by the conical generatrix (20) relative to the threaded zones (3, 4) is in a direction opposite to the inclination defined by the tangent (30) at the contact zone of the sealing surface (5, 6; 11, 12).

    THREADED TUBULAR CONNECTION WHICH IS LEAK-PROOF UNDER INTERNAL AND EXTERNAL SUCCESSIVE PRESSURE LOADS
    4.
    发明公开
    THREADED TUBULAR CONNECTION WHICH IS LEAK-PROOF UNDER INTERNAL AND EXTERNAL SUCCESSIVE PRESSURE LOADS 有权
    是线程管道连接下的内部和外部逐次压力负荷泄漏安全

    公开(公告)号：EP2122220A1

    公开(公告)日：2009-11-25

    申请号：EP08717456.1

    申请日：2008-03-06

    申请人： VALLOUREC MANNESMANN OIL & GAS FRANCE ,  Sumitomo Metal Industries Limited

    发明人： PATUREAU, Claire ,  TARTAR, Olivier

    IPC分类号： F16L15/04

    CPC分类号： F16L15/004

    摘要： A threaded tubular connection which is leak-proof for internal and external successive pressure loads with comprises a male element (11) and a female element (12). At least one of the male or female elements (11, 12) comprises a lip (14, 16) between the threading (13, 15) and the free end of the element (17, 18). The lip (16) comprises a first zone (20) with a peripheral surface turned towards the other element (11) on which a first metallic sealing surface (22) is disposed which can be radially interference fitted against a corresponding second metallic sealing surface (23) disposed on the other element (11). The lip (16) has a second zone (21) located axially between said first zone (20) and the corresponding threading (15). The radial stiffness of the second zone (21) is less than that of the first zone (20) and that of a third zone adjacent to the second zone (21) in the direction of the threading (15), and zone (21) can be radially deformed by a pressure which is exerted thereon.