E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/16 (2006.01) E21B 23/03 (2006.01) E21B 34/06 (2006.01)
Patent
CA 2659692
In some embodiments, apparatus useful for providing fluids or equipment into a subterranean well through a production tubing and associated dead string includes an injection system that is movable into and out of the well without removing the production tubing. The injection system includes a stopper that forms the seal that creates the dead string.
Baker Hughes Incorporated
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Bj Services Company
LandOfFree
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