Retrievable torque-through packer having high strength and reduced cross-sectional area
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United States of America Patent
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Mar 23, 1999
Grant Date -
N/A
app pub date -
Feb 26, 1996
filing date -
Feb 26, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A packer for use in subterranean wellbores provides efficient utilization of its cross-sectional area with mechanisms therein for anchoring, sealing, and torquing through the packer. In a preferred embodiment, a retrievable packer has a tubular mandrel, rubbers disposed on the mandrel, upper and lower compression members axially straddling the rubbers, a barrel-type casing slip, upper and lower wedges axially straddling the casing slip, a release mechanism, and a series of threaded load-distributing components which help to prevent collapse of the mandrel.
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