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Well head mounted hydraulic pumping units

The sucker rod beam type pumping units are surface equipment connected to a steel rod, typically between 25 and 30 feet (7 to 9 meters) in length, used to operate a down hole pump and increase oil production. The maximum stroke length is in the range o of 15ft (5m) for the bigger size of beam type pumping unit.

The old technology of sucker rod (pumpjack) used to transfer the energy from the rotary motion of the prime-mover to the sucker rod string by means of walking beam; a gear reducer is also used to reduce the speed to suitable pumping stroke.

The new technology of pumping units uses instead a vertical hydraulic piston directly connected to the sucker rod string where a max pumping stroke 336" (8.5m) may be directly achieved by regulating also the hydraulic piston speed.

How it works
Main benefits