Hydraulic top drives

Warrior manufactures hydraulic top drives ranging from 110 to 350 tons. The following are some of the proprietary design and/or unique features of the Warrior Top Drive.

• Floating quill; internal axial movement of the quill provides for soft stabbing and protection of the top drive during rough drilling (replaces the need for a cushion shock sub).
• Direct drive motor; Warrior’s hydraulic top-drives use a through-bore direct drive motor (there are no mechanical gears between the top drive motor and quill). This eliminates a transmission within the top drive which adds weight and is generally a higher maintenance item. Also, with a direct drive, the torque of the motor is applied directly to the quill (no power losses as in gear drives). This provides for high torque capabilities in a more compact package.
• 360 degree pipe handling system is available on certain models.
• Advanced hydraulic system for motor protection on the top drive including a fail-safe manifold to prevent motor backspin from downhole torque (controlled de-torque of the drill string) and an accumulator system to protect the motor during rough drilling conditions.
• Independent hydraulic drive system with diesel or AC motor drive. The system is compact and can be a standalone unit or packaged in a building with other equipment.
• PLC controls with interlocks and diagnostic readouts at the driller’s console and hydraulic power unit.
• Hydraulic-actuated lower well control valve.
• Easy to handle, light and quick to rig-up guide rail mounted in the mast.

Top drive specifications: