Production tubing hydraulic release mechanism and method of use
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United States of America Patent
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Jul 6, 2010
Grant Date -
Mar 13, 2008
app pub date -
Sep 9, 2006
filing date -
Sep 9, 2006
priority date (Note) -
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Abstract
A release mechanism for removing a subsurface safety control valve from a production string in a well bore is mounted below the safety valve in operational engagement with the safety valve and the production string. The release mechanism has a two-part construction, with the upper part being normally locked to the lower part and released from the lower part when changing of the safety valve is required.
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