Well tool having enhanced packing element assembly

Details Well tool having enhanced packing element assembly Well tool having enhanced packing element assembly

2011-04-19

2011-04-19

Bagnell, David J (Department: 3672)

Wells

Processes

Placing or shifting well part

C166S138000

Reexamination Certificate

active

07926581

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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