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Shock Tool (Belleville Spring Design)
Brand: Challenger Downhole ToolsThe Challenger Downhole Tools Shock Tool effectively reduces impact loading on the bit to extend bit life and reduce bit trips. By isolating axial bit vibrations from the drill string, the shock tool will reduce lateral and torsional drill string vibrations, and related fatigue damage or failure of the rotary connections.
The shock tool allows optimum bit speed to be used under rough drilling conditions, increasing the rate of penetration. The Challenger shock spring rate can be adjusted for additional applications such as, P.D.C. bits and used with vibration tools and MWD.
Features- Reduces drill string vibration and impact from MWD systems
- Adjustable spring rate for P.D.C. applications
- Can be provided in both near bit and string applications
- Does not use temperature-sensitive elastomers for shock absorption, therefore is suitable for use in temperatures to 275°F (135°C), with optional seals available for temperatures up to 450°F (230°C)
- Reliable Belleville disc springs provide optimum load/deflection characteristics to maintain consistent contact between bit and formation, effectively reducing impact loading to extend bit life
- Low friction torsional drive permits free vertical movement
- Reduces wear and tear on rig and equipment, and fatigue failures on drill collars and drill pipe
- Automatically compensates for pump open force
- Isolates bit induced vibrations from the drill string
- Pressure balanced to eliminate the effect of downhole hydrostatic pressure