Surface Drives

The surface drive provides a link between input energy and the PCP. It completes this energy transition by supporting and rotating a sucker rod string, which is connected to the PCP located in the well.

Key Features and Benefits

• Efficient and economical
• Reduced capital, setup time and expense
• Bearing box drive style with a vertical, hollow-shaft design
• Simple installation and maintenance
• Hinged-belt guards
• Standard wellhead connections
• Removable stuffing box
• Accepts gas or electric prime movers
• Variable speeds
• Precise torque and backspin control
• Safety guards for rotating components
• Small footprint

Direct Drives

The direct drive is coupled directly to the prime mover via belts and sheaves.

Key Features and Benefits

• Compact with minimal moving parts
• Internal backspin control

Hydraulic Drives

Hydraulic drives are not connected directly to the energy source. Energy is provided to the drive via fluid power. This action is accomplished by having the prime mover located on a skid, which is coupled to a hydraulic pump. This fluid energy from the pump is supplied to a hydraulic motor located at the drive. Hydraulically driven drives are available in two models: HTD and Inline.

The Hydraulic Top Drive (HTD) has belts and sheaves to connect to the hydraulic motor; whereas the Inline HTD has the hydraulic motor built into its housing; thus, eliminating the belts and sheaves.

HTD and Inline HTD key features and benefits

• Environmental containment skid
• Adaptable to alternate fuel/energy sources
• Integrated variable speed and simple backspin control
• Large selection of speed and torque combinations

Additional inline HTD key features and benefits

• More compact than the conventional hydraulic drive
• Minimal external moving parts
• Quieter operation is ideal for noise-sensitive areas