发明申请
- 专利标题： Downhole Safety Valve Apparatus and Method
- 专利标题（中）： 井下安全阀装置及方法
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申请号： US11664645申请日： 2005-10-07
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公开(公告)号： US20080230231A1公开(公告)日： 2008-09-25
- 发明人: Jeffrey L. Bolding , David R. Smith
- 申请人： Jeffrey L. Bolding , David R. Smith
- 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
- 国际申请： PCT/US2005/036065 WO 20051007
- 主分类号： E21B34/10
- IPC分类号： E21B34/10
摘要：
A safety valve (100) replaces an existing safety valve (102) in order to isolate a production zone from a tubing string when closed. Preferably the safety valve (100) includes a flow interruption device (106) displaced by an operating conduit extending from a surface location to the safety valve (100) through the inside of the production tubing. A by-pass conduit (150) allows communication from a surface location to the production zone through the safety valve (100) without affecting the operation of the safety valve (100).
公开/授权文献
- US07637326B2 Downhole safety valve apparatus and method 公开/授权日：2009-12-29
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