E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/16 (2006.01) E21B 21/10 (2006.01)
Patent
CA 2463289
A cementing system for wellbores.
L'invention concerne un système de cimentation pour puits de forage.
Aguilera Carlos H.
Mondelli Juan Carlos
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Bj Services Company
LandOfFree
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