High Arctic Energy Services L.P

COMPLETION TOOLS
Downhole Shut In Valve (DHSV) WR Retrieval Assembly Advantages of the DHSV WR Retrieval Assembly versus Tubing Plugs: Allows the tubing to be flowed at any time by rotation of the tubing to function the DHSV into the open position Eliminates tubing plugs, wire line and TIW rental cost Time effective compared to setting and pulling tubing plugs The design of the DHSV ensures that there will never be a sudden failure and allow an uncontrolled release of gas up the tubing string Compared to a traditional tubing plug, the DHSV is designed to function in a sand environment The cost comparison on a WR Assembly with a DHSV shows up to a 50% savings in cost compared to tubing plugs. These savings are due to the elimination of the Slickline Unit and additional rig and snubbing cost to pull and set the plug. Also, by using the DHSV, less TIW valves are required saving the customer valve rental and recertification costs.

COMPLETION TOOLS

Downhole Shut In Valve (DHSV) WR Retrieval Assembly

Advantages of the DHSV WR Retrieval Assembly versus Tubing Plugs:

Allows the tubing to be flowed at any time by rotation of the tubing to function the DHSV into the open position
Eliminates tubing plugs, wire line and TIW rental cost
Time effective compared to setting and pulling tubing plugs
The design of the DHSV ensures that there will never be a sudden failure and allow an uncontrolled release of gas up the tubing string
Compared to a traditional tubing plug, the DHSV is designed to function in a sand environment

The cost comparison on a WR Assembly with a DHSV shows up to a 50% savings in cost compared to tubing plugs. These savings are due to the elimination of the Slickline Unit and additional rig and snubbing cost to pull and set the plug. Also, by using the DHSV, less TIW valves are required saving the customer valve rental and recertification costs.