TUBULAR FRICTION WELDING JOINING METHOD WITHOUT ROTATION OF THE TUBULARS
    35.
    发明公开
    TUBULAR FRICTION WELDING JOINING METHOD WITHOUT ROTATION OF THE TUBULARS 审中-公开
    管道REIBSCHWEISSVERBINDUNGSVERFAHREN无旋转地管道的

    公开(公告)号:EP2943308A1

    公开(公告)日:2015-11-18

    申请号:EP14737785.7

    申请日:2014-01-06

    Inventor: LEHR, Joerg

    Abstract: Tubulars are joined to each other without rotation of the tubulars. A coupling is placed between the aligned tubulars and is supported for rotation or oscillating about its longitudinal axis. The tubulars are clamped in a manner that allows a compressive force to be transmitted to the coupling as the coupling is rotated. An induction device can preheat each connection site before friction welding and/or provide heat as the connection is made and is allowed to cool down. The process can continuously create a string of casing or liner that can be run in or drilled into a wellbore.

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