Device for annular well isolation
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United States of America Patent
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Sep 30, 2003
Grant Date -
N/A
app pub date -
Aug 16, 2001
filing date -
Feb 19, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Device for annular isolation in oil/gas wells comprising a production tube, the production tube comprises coaxially positioned, cylindrical sleeve (5) having in one end an at least partially radially directed opening slot (2), said sleeve including a cylindric sealing crown (1) coupled in one end to a release mechanism (3, 4) adapted to push the sealing crown (1) out through the opening, said sealing crown (1) in its other end being expandable in the tangential direction.
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