E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 17/00 (2006.01) E21B 7/20 (2006.01) E21B 29/10 (2006.01) E21B 33/03 (2006.01) E21B 33/14 (2006.01) E21B 43/10 (2006.01)
Patent
CA 2300363
A wellbore casing is formed simultaneously with the drilling out of the wellbore.
Brisco David Paul
Cook Robert Lance
Duell Alan B.
Haut Richard Carl
Mack Robert D.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Shell Internationale Research Maatschappij B.v.
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