Conduct pipe covered with electrically insulating material

Details Conduct pipe covered with electrically insulating material Conduct pipe covered with electrically insulating material

B - Operations, Transporting

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154/144, 154/53

B32B 1/08 (2006.01) E21B 17/00 (2006.01) E21B 36/04 (2006.01) F16L 9/147 (2006.01) F16L 25/01 (2006.01) H01B 3/42 (2006.01)

Patent

CA 1204992

ABSTRACT OF THE DISCLOSURE A conduct pipe covered with an electrical insulating material, which is obtained by a process comprising winding a polyether ether ketone resin film around the outside of a metal conduct pipe, carrying out impregnation treatment in vacuum under pressure with using an impregnant resin comprising an ether bonding epoxy resin, and thereafter hardening by heating, is disclosed. The conduct pipe is particularly useful in an electrode apparatus for collecting underground hydrocarbon resources by an electrically heating method,

413142

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