Permanent thermal packer

Details Permanent thermal packer Permanent thermal packer

E - Fixed Constructions

21

B

166/63

E21B 33/12 (2006.01) E21B 33/13 (2006.01) E21B 33/134 (2006.01) E21B 33/16 (2006.01) E21B 36/00 (2006.01)

Patent

CA 1180270

-11- ABSTRACT OF THE DISCLOSURE A permanent thermal packer is disclosed for sealing the annulus between an injection tubing string and a well casing. The packer is thermal cement and is placed from within the injection tubing spring to seal a substan- tial portion of the annulus above the injection zone. The packer provides a means for sealing the annulus above the injection zone thus permitting insulating material to be placed in the annulus above the packer with the expecta- tion that it will not be damaged by well bore fluids.

408260

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