Vertical Safety Device to Prohibit Accidental Perforating Gun

Vertical Safety Device to Prohibit Accidental Perforating Gun Detonation, TCP (Patent Pending*) International Perforating Symposium Amsterdam 2015 Authored by: Bradley Vass Presented by: Stanley Mc. Combie Owen Oil Tools IPS-15 -11

Abstract Summary Overview of typical CT gun string characteristics Case history of perforating guns detonating in the lubricator or in vertical portion of horizontal wells during Coiled Tubing (CT) operations Development of a device to meet customer safety requirements to prevent vertical detonations during CT operations Overall testing from prototyping to customer use IPS-15 -11

TCP System Characteristics Shear Pins Firing Pin Perforating Gun Percussion Initiator IPS-15 -11

TCP System Characteristics Time Delay Fuse Firing Head Perforating Gun 1 Transfer Sub Perforating Gun 2 IPS-15 -11

Surface Detonations Example of damaged lubricator due to perforating gun detonation Multiple detonations have occurred in the lubricator IPS-15 -11

Surface Detonations Average of 6 – 8 perforating guns inside lubricator per CT operation IPS-15 -11

Surface Detonations VIDEO IPS-15 -11

Vertical Detonations Multiple detonations have occurred in the vertical portion of the well during CT operations in U. S. horizontal shale plays Unwanted perforating damage compromises vertical casing No knowledge of guns detonating while tripping into the well IPS-15 -11

Detonation Interruption System relies on the interrupters ability to disrupt the shockwave Stops the shock transfer from the initiator to the perforating gun Impact Input High Order Output IPS-15 -11

Safety Device with TCP While in vertical orientation the interrupter is in a “no-fire” position (Patent Pending*) IPS-15 -11

Safety Device with TCP Once the system reaches the horizontal portion of the well the interrupter allows for successful initiation transfer (Patent Pending*) IPS-15 -11

Testing Multiple Tests at various orientations and inclinations. Released to the industry after 6 months of successful field testing. Testing Vertical Internal X Inverted Vertical X Horizontal Inclination 30° Inclination 60° X X X IPS-15 -11

Conclusion Demand for a safety device after multiple vertical detonations in the lubricator and in the vertical portion of horizontal well Developed an inline interruption device for coiled tubing perforating operations in horizontal wells Currently being utilized in U. S. Horizontal Shale Wells

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