发明授权
- 专利标题: Low profile rotating control device
- 专利标题(中): 低调旋转控制装置
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申请号: US11975946申请日: 2007-10-23
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公开(公告)号: US08286734B2公开(公告)日: 2012-10-16
- 发明人: Don M. Hannegan , Thomas F. Bailey , James W. Chambers , David R. Woodruff , Simon J. Harrall
- 申请人: Don M. Hannegan , Thomas F. Bailey , James W. Chambers , David R. Woodruff , Simon J. Harrall
- 申请人地址: US TX Houston
- 专利权人: Weatherford/Lamb, Inc.
- 当前专利权人: Weatherford/Lamb, Inc.
- 当前专利权人地址: US TX Houston
- 代理机构: Strasburger & Price, LLP
- 主分类号: E21B33/03
- 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.
公开/授权文献
- US20090101411A1 Low profile rotating control device 公开/授权日:2009-04-23
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