发明授权
- 专利标题: Dual purpose blow out preventer
- 专利标题(中): 双用途防喷器
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申请号: US11602511申请日: 2006-11-20
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公开(公告)号: US07410003B2公开(公告)日: 2008-08-12
- 发明人: John Edward Ravensbergen , Doug Brunskill
- 申请人: John Edward Ravensbergen , Doug Brunskill
- 申请人地址: US TX Houston
- 专利权人: BJ Services Company
- 当前专利权人: BJ Services Company
- 当前专利权人地址: US TX Houston
- 代理机构: Howrey LLP
- 主分类号: E21B19/22
- IPC分类号: E21B19/22 ; E21B33/06
摘要:
An improved dual purpose blow out preventer (“BOP”) that provides both deployment and wellhead pressure containment functions. The dual purpose BOP may include four sets of rams including a set of seal/slip rams that provide bi-directional sealing being a first barrier to downhole pressure. The seal/slip rams may also grip a portion of a bottom hole assembly and create the bottom seal of an annular chamber. The BOP may include a set of seal rams that create the top seal of the annular chamber. The annular chamber may be pressurized through a port in the BOP, which may actuate a coiled tubing connector. The BOP may include a set of locate rams used to position a coiled tubing connector within the BOP stack. The BOP may also include a set of blind/shear rams that provide bi-directional sealing being a second barrier to wellhead pressure.
公开/授权文献
- US20070137866A1 Dual purpose blow out preventer 公开/授权日:2007-06-21
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