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U.S. Department of Energy
Office of Scientific and Technical Information

Permanent thermal packer method

Patent ·
OSTI ID:6606468

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 string to seal a substantial 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 expectation that it will not be damaged by well bore fluids.

Assignee:
Chevron Research Company
Patent Number(s):
US 4444263
OSTI ID:
6606468
Country of Publication:
United States
Language:
English