Gate Valve Drilling

Gate Valve Drilling Process A new gate valve is nippled up directly to the seized gate valve along with a riser (housing the cutting bit) to the gate valve drilling connection. The system is then filled with cutting fluid & pressure tested. The cutting bit is advanced with rotation and the gate of the seized valve is breached. Once a pressure change on the pressure gauge is witnessed, then the cutting bit is reversed back into the riser and the new valve is closed. The operating or third-party company can then nipple up to the valve & pressure can be bled off, circulated or bull-headed to gain pressure control.