Expandable casing patch
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United States of America Patent
Stats
-
Oct 20, 2015
Grant Date -
Aug 15, 2013
app pub date -
Oct 18, 2011
filing date -
Oct 22, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system including a housing having an upper end in fluid communication with a source of pressurized fluid and a lower end releasably coupled to an expandable tubular. A piston is disposed within and sealingly engaged with the housing. An expansion cone is coupled to the piston and is operable to radially expand the expandable tubular as it moves longitudinally therethrough. A pressure chamber is disposed within the housing and defined by the piston and the expansion cone. A first pressure relief port is disposed within the housing and is operable to allow fluid communication between the pressure chamber and an annulus external to the housing. A second pressure relief port is disposed within the expansion cone and is operable to allow fluid communication between the pressure chamber and a portion of the expandable tubular below the expansion cone.
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