Downhole safety valve apparatus and method
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United States of America Patent
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Feb 15, 2011
Grant Date -
Apr 22, 2010
app pub date -
Dec 23, 2009
filing date -
Oct 7, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The application discloses a safety valve to replace an existing safety valve in order to isolate a production zone from a string of tubing when closed. Preferably, the safety valve includes a flow interruption device displaced by an operating conduit extending from a surface location to the safety valve through the inside of the production tubing. The application also discloses a bypass-conduit which allows communication from a surface location to the production zone through the safety valve without affecting the operation of the safety valve.
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