Gate Valve Drilling
Have a pressure control situation that requires a different point of entry? Gate valve drilling offers an
effective approach by drilling out an inoperable gate or plug while it’s in the closed position. This is
performed while maintaining pressure downstream of the gate or valve.
Doing this allows for accurate monitoring of the pressure, a controlled release of the pressure, or provides
the opportunity to pump in fluids to freeze or kill the well. We have the capabilities to drill a gate or
TIW valve to its full inner diameter.
For longer reach operations, our pressure-compensated gate valve units can access drilling points several
feet away from the unit. Available units deliver up to 15,000-psi pressure ratings in H2S
service.
| Capabilities |
|---|
| Gate valves, ball valves, TIW valves, casing hangers, plug valves, obstructions in the wellhead |
| Engineered mills custom built to mill every valve type and material efficiently |
| 15,000 psi working pressure, including H2S environments |
| Designed for onshore and offshore operations |
| Mill sizes range from 1’’ to 11’’ |
| Full hydraulic units |
| Compact and weighs approximately 750 lbs |
| Pressure balanced system allowing for long stroke capabilities up to 30 ft |
Valve Drilling Technology
Valve drilling is used as a means to safely rectify non-functioning or failed valves. The primary
objective is to penetrate the valve body or drill valve gate to full bore. Bull plugs can also
be accessed utilizing this same technology to safely verify the existence of pressure. Pressure
equalization is achieved through the use of a lubricator in low to high pressures (15,000 psi)
circumstances either vertically or horizontally.
| The valve drilling unit has the design capability to safely drill the following: |
|---|
| Hard banded surfaces |
| Gate valves |
| Ball valves |
| Partially closed / open valves |
| Plugs |