Intensifiers are designed to ensure maximum jarring efficiency in directional or crooked holes where wall drag is a problem, or in shallow holes where pipe stretch is insufficient.
The Intensifier is positioned in the bottom hole assembly several drill collars above the jar. As tension is applied, the Intensifier will extend, storing the energy of the applied tension. This stored energy is released when the jar fires, accelerating the drill collars upward.
Fully sealed and lubricated, the Intensifier will provide dependable operation in continuous drilling service. National Oilwell Varco offers standard intensifiers and double acting intensifiers.
The Griffith® Double-Acting Mechanical Drilling Jar Intensifier operates in both up and down directions.
How to Order
Specify:
- Outer Diameter
- Connections
- Bottom hole temperature
.