E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 23/00 (2006.01) E21B 33/068 (2006.01) E21B 43/16 (2006.01)
Patent
CA 2421348
Apparatus for controlling a tool having a mandrel that must be stroked into or out of a well includes an anchor spool and a detachable superstructure. The anchor spool supports the detachable superstructure. The detachable superstructure includes at least two hydraulic cylinders used to stroke the mandrel into or out of the well.
Dallas L. Murray
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
LandOfFree
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