E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/26 (2006.01) E21B 23/06 (2006.01) E21B 33/124 (2006.01) E21B 34/06 (2006.01)
Patent
CA 2591567
An improved method of fracing a formation includes providing a check valve, thus improving the life of the coiled tubing and the safety of the operation, and reducing the time to perform a given downhole operation.
Gavin William George
Tudor Eric Hughson
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Bj Services Company Canada
LandOfFree
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