E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 49/08 (2006.01) E21B 17/20 (2006.01) E21B 19/08 (2006.01) E21B 19/22 (2006.01) E21B 47/00 (2012.01)
Patent
CA 2485840
A safeguarded method and apparatus for providing fluid communication with coiled tubing, said coiled tubing comprising more particularly coiled-in-coiled tubing, having a inner tube and an outer tube, and including multicentric coiled-in-coiled tubing and its method of assembly, the safeguarded method having particular applicability to drill stem testing.
Misselbrook John G.
Sask David E.
Bj Services Company Canada
Nowsco Well Service Ltd.
Osler Hoskin & Harcourt Llp
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