Perforating type lockout tool

Details Perforating type lockout tool Perforating type lockout tool

E - Fixed Constructions

21

B

E21B 34/10 (2006.01) E21B 29/08 (2006.01) E21B 34/00 (2006.01)

Patent

CA 2087673

A tubing retrievable safety valve, lockout tool and their method of use are disclosed for locking the valve open permanently and provide access to control line pressure by perforating a piston in the valve. The lockout tool comprises a track mandrel having a ramp slidably disposed beneath a punch that is adapted to penetrate the piston wall of the valve at a point adjacent to the control fluid annulus, thereby creating a protrusion adapted to lock the valve open and establishing fluid communication between the control fluid annulus and the valve bore.

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