Well tool having enhanced packing element assembly
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United States of America Patent
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Apr 19, 2011
Grant Date -
Sep 18, 2008
app pub date -
Mar 12, 2008
filing date -
Mar 12, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A well tool having an enhanced performance packing element assembly. A well tool includes a packing element assembly for sealingly engaging a surface, the assembly including a packing element having at least one circumferential variation. Another well tool includes a packing element assembly including a packing element and a backup ring, the packing element being configured to bias the backup ring into contact with a surface opposite a circumferential portion of the backup ring, while another circumferential portion does not contact the surface. A method of setting a well tool includes providing a packing element assembly with multiple packing elements, and setting the well tool by squeezing fluid from between the packing elements via a gap, and then closing off the gap.
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