发明授权
- 专利标题： Shear activated safety valve system
- 专利标题（中）： 剪切活塞安全阀系统
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申请号： US11253766申请日： 2005-10-19
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公开(公告)号： US07624792B2公开(公告)日： 2009-12-01
- 发明人: Adam D. Wright , Vincent P. Zeller , Harold W. Nivens , Roger L. Schultz
- 申请人： Adam D. Wright , Vincent P. Zeller , Harold W. Nivens , Roger L. Schultz
- 申请人地址： US TX Houston
- 专利权人： Halliburton Energy Services, Inc.
- 当前专利权人： Halliburton Energy Services, Inc.
- 当前专利权人地址： US TX Houston
- 代理商 Marlin R. Smith
- 主分类号： E21B34/16
- IPC分类号： E21B34/16 ; E21B29/04
摘要：
A safety valve system includes a safety valve having an actuator and a line connected to the actuator. The safety valve is operable by opening the line in the well, with the line being free of any connection to a surface control system. Another safety valve system includes multiple safety valves. An actuator of each safety valve is connected to an actuator of another safety valve via a line. A biasing force in each of the actuators is operative to close the respective one of the safety valves in response to opening of the line. The biasing force is produced at least in part by hydrostatic pressure in a well.
公开/授权文献
- US20070084607A1 Shear activated safety valve system 公开/授权日：2007-04-19
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