Hydraulic set high temperature isolation packer

Details Hydraulic set high temperature isolation packer Hydraulic set high temperature isolation packer

E - Fixed Constructions

21

B

166/63

E21B 43/04 (2006.01) E21B 33/128 (2006.01)

Patent

CA 1195243

ABSTRACT The invention comprises a packer design for use in high temperature well bores. The packer is set by pres- suring the well fluid through a tubing string, which moves a piston and shoe assembly on the packer mandrel, compressing a non-elastomeric high temperature packer element. The piston and shoe assembly combination is maintained in position after pressure is decreased, and the packer element is maintained in a compressed state by belleville springs which compensate for the lack of resiliency of the non-elastomeric packer element.

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