Downhole seal
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United States of America Patent
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May 20, 2014
Grant Date -
Aug 11, 2011
app pub date -
Feb 5, 2009
filing date -
Feb 7, 2008
priority date (Note) -
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Abstract
An expandable downhole seal includes a sealing portion and a deflecting portion adapted to move axially relative to each other to effect radial displacement of the sealing portion, wherein at least one of the sealing portion and the deflecting portion includes a swelling material. In use, radial expansion of the downhole seal may be achieved by the radial displacement of the sealing portion in combination with swelling of the swellable material. A support member is provided to support the sealing portion and deflecting portion.
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