Title:
DOWNHOLE SAFETY VALVE APPARATUS AND METHOD
Document Type and Number:
WIPO Patent Application WO2006042060
Kind Code:
A3
Abstract:
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).
More Like This:
| WO/2000/045030 | VALVES FOR USE IN WELLS |
| WO/2019/073200 | DOWNHOLE APPARATUS |
| WO/2011/102732 | VALVE SYSTEM |
Inventors:
BOLDING JEFFREY L (US)
SMITH DAVID R (US)
SMITH DAVID R (US)
Application Number:
PCT/US2005/036065
Publication Date:
August 24, 2006
Filing Date:
October 07, 2005
Export Citation:
Assignee:
GEN OIL TOOLS L P (US)
BOLDING JEFFREY L (US)
SMITH DAVID R (US)
BOLDING JEFFREY L (US)
SMITH DAVID R (US)
International Classes:
E21B34/10
Foreign References:
| US4746423A | 1988-05-24 | |||
| US3412687A | 1968-11-26 | |||
| US5803173A | 1998-09-08 | |||
| US4367794A | 1983-01-11 |
Other References:
See also references of EP 1797279A4
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