The Hydraulic Initiation Port is positioned above the toe circulating sub and is actuated by creating a differential pressure after the toe circulating sub is closed. When the activation pressure is achieved, a sleeve shifts down opening the ports to establish communication with the formation. In the unlikely event that the sleeve does not shift, then the redundant BurstPoint port feature is used to establish the communication with the target zone.

• Incorporates a redundant BurstPoint port feature which activates the tool in the unlikely event the sleeve does not shift properly
• The activation is based on differential pressure, thus removing the need to account for wellbore dynamics
• It features adjustable activation shear settings
• Large exit ports allow high flow rates for the first stage stimulation operation
• The surface pressure indication is an accurate monitoring response of the tool activation mechanism