High temperature packer for well conduits

Details High temperature packer for well conduits High temperature packer for well conduits

E - Fixed Constructions

21

B

166/63

E21B 33/128 (2006.01) E21B 33/12 (2006.01) E21B 33/129 (2006.01)

Patent

CA 1269320

HIGH TEMPERATURE PACKER FOR WELL CONDUITS ABSTRACT OF THE DISCLOSURE A packer for effecting steam treatment of a production formation of a subterranean well comprises an insulated mandrel which is slidably inserted within the bore of an inner tubular body assembly. An outer operative tubular assembly surrounds the inner assembly and mounts a plurality of drag blocks, upper and lower cone elements, a plurality of radially displaceable slips cooperating with the upper and lower cone elements, and an outer packing element fabricated by an assemblage of high temperature resistant, non-resilient seal elements formed primarily of graphite. An inner packing element is provided in the inner tubular body assembly, utilizing additional high temperature resistant, non-resilient seal elements formed primarily of graphite, which sealingly engages the insulated mandrel.

524531

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