Dual-stage valve straddle packer for selective stimulation...

Details Dual-stage valve straddle packer for selective stimulation... Dual-stage valve straddle packer for selective stimulation...

E - Fixed Constructions

21

B

E21B 33/12 (2006.01) E21B 23/06 (2006.01)

Patent

CA 2616182

A straddle packer which, when in place during a fracing or well stimulation service, isolates the fracing zone from zones in the wellbore above and below the fracing zone, and which when run into the wellbore provides an open passageway from below the packer to the tubing string, relieving built up fluid pressure below the tool and permitting insertion at relatively high speeds.

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