System Settign Sub

The system setting sub is run at the bottom of the fracturing sleeve that allows circulation during RIH and could be closed by setting ball to build up the pressure required to set the packers.

The tool has a ball seat and a check valve at the bottom to prevent debris from entering the string. The shear pins are all accurately rated before assembly and adjustable. After the ball shifts the collar, it will act as a dead plug which could not be opened again.