Capture method for flow back retrieval of borehole plug with a lower slip assembly
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United States of America Patent
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-
Oct 22, 2019
Grant Date -
Jan 25, 2018
app pub date -
Jun 28, 2017
filing date -
May 31, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A borehole plug or packer for treating is designed to be flowed back to a surface location after use. When the treatment is concluded pressure from above is relieved or lowered, and well fluid is flowed back, so that the plug or plugs disengages at slips designed to resist differential pressure from above. The application of differential pressure from below causes the lower slips to release one or more of such plugs in the hole into specialized sub surface or surface capture equipment so that well pressure is relieved before removal of the plugs from specialized subsurface or surface capture equipment. Packers or plugs are captured above, below or at a wellhead in a receptacle. Production ensues without milling with the captured plugs or packers in place or removed.
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