Low profile rotating control device
    1.
    发明授权
    Low profile rotating control device 有权
    低调旋转控制装置

    公开(公告)号:US08286734B2

    公开(公告)日:2012-10-16

    申请号:US11975946

    申请日:2007-10-23

    IPC分类号: E21B33/03

    摘要: A system and method are provided for a low profile rotating control device (LP-RCD) and its housing mounted on or integral with an annular blowout preventer seal, casing, or other housing. The outer diameter of the lateral outlet flange may be substantially the same as the height of the LP-RCD housing and bearing assembly after the bearing assembly is positioned with the LP-RCD housing. The sealing element may be aligned with the lateral outlet, and may be replaced from above. Different embodiments of attachment members for attaching the LP-RCD housing with a lower housing allow the LP-RCD housing to be rotated to align the lateral outlet with the drilling rig's existing line to mud pits or other locations. In one embodiment, the LP-RCD bearings are positioned radially inside the LP-RCD housing. In another embodiment, the LP-RCD bearings are positioned radially outside the LP-RCD housing. One embodiment allows rotation of the inserted tubular about multiple planes. In still another embodiment, an annular BOP seal is integral with a RCD housing.

    摘要翻译: 提供了一种用于低轮廓旋转控制装置(LP-RCD)的系统和方法,并且其壳体安装在环形防喷器密封件,套管或其它壳体上或与其形成一体。 在轴承组件与LP-RCD壳体定位之后,侧向出口凸缘的外径可以与LP-RCD壳体和轴承组件的高度基本相同。 密封元件可以与侧向出口对准,并且可以从上方替换。 用于将LP-RCD壳体与下壳体连接的附接构件的不同实施例允许LP-RCD壳体旋转以将侧向出口与钻机现有管线对准到泥浆坑或其它位置。 在一个实施例中,LP-RCD轴承径向位于LP-RCD壳体内。 在另一个实施例中,LP-RCD轴承位于LP-RCD外壳的径向外侧。 一个实施例允许插入的管在多个平面上旋转。 在另一个实施例中,环形BOP密封件与RCD壳体是一体的。