Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 6, 2018
Patent Application Number
14757148
Date Filed
November 25, 2015
Patent Citations Received
Patent Primary Examiner
Patent abstract
Downhole drill pipe cutting is achieved by a free-falling sub carrying a shaped charge cutter and an ablative fluid cutter. Upon seating on a drill string flow bore orifice, fluid pressure is raised to detonate the shaped charge cutter. In the event the shaped charge cutter fails, pressure is further raised to effect a cut by fluid ablation.
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