Method for preparing pipe for butt welding
    1.
    发明授权
    Method for preparing pipe for butt welding 有权
    管接头对接方法

    公开(公告)号:US06910618B2

    公开(公告)日:2005-06-28

    申请号:US10387186

    申请日:2003-03-12

    申请人: Kevin Gendron

    发明人: Kevin Gendron

    摘要: A steel pipe is welded to a threaded connector that has an end with a desired nominal inner diameter. A swage is forced over an end of the pipe, reducing an outer diameter and an initial inner diameter of the end of the pipe. A die is then forced into the end of the pipe, the die having an outer diameter sized to increase the inner diameter of the end of the pipe to the nominal inner diameter of the end of the connector. A weld groove is machined on the end of the pipe and the ends are abutted and welded at the weld grooves.

    摘要翻译: 钢管被焊接到具有期望的标称内径的端部的螺纹连接器。 管子的一端被迫超过管道的一端,从而减小管道末端的外径和初始内径。 然后将模具强制进入管的端部,模具具有外径,其尺寸被设计成将管的端部的内径增加到连接器端部的标称内径。 在管的端部加工焊缝,并且在焊缝处抵接并焊接端部。

    Subsea wellhead structure
    2.
    发明授权
    Subsea wellhead structure 失效
    海底井口结构

    公开(公告)号:US4691780A

    公开(公告)日:1987-09-08

    申请号:US740523

    申请日:1985-06-03

    CPC分类号: E21B33/043 E21B2033/005

    摘要: A subsea wellhead structure including a casing hanger having an exterior downwardly facing shoulder for landing within a well bore, a central bore, means for connecting a casing thereto, an upper exterior surface tapering downwardly and outwardly, and an external surface below said shoulder tapering downwardly and inwardly for centering said hanger on landing, a seal assembly with a metal seal sleeve having downwardly extending fingers, an internal metal annular bulbous sealing surface and an external metal cylindrical sealing surface, means for latching said seal sleeve in sealing position, a protector sleeve and means for releasably securing said protector sleeve to said seal assembly and said latching means, the latching means including retaining means preventing premature setting or movement of the latching means prior to the setting of said sealing means.

    摘要翻译: 一种海底井口结构,其包括具有外部朝下的肩部以用于在井眼内着陆的壳体悬挂器,中心孔,用于将壳体连接到其上的装置,向下和向外逐渐变细的上部外部表面以及在所述肩部下方逐渐向下逐渐变细的外部表面 并且向内用于在着陆时使所述衣架对中,密封组件具有带有向下延伸的指状物的金属密封套,内部金属环形球形密封表面和外部金属圆柱形密封表面,用于将所述密封套锁定在密封位置的装置,保护套 以及用于将所述保护套可释放地固定到所述密封组件和所述闩锁装置的装置,所述闩锁装置包括保持装置,以防止在设置所述密封装置之前过早地固定或移动所述闩锁装置。