The surface pumping unit is made up of two primary components: a prime mover (motor) and a walking beam connected to a pivotal post. The walking beam operates like a seesaw on the pivotal post, providing a reciprocating motion to the rod string. On each upward stroke of the rod string, a volume of produced wellbore fluids is lifted upward in the tubing string toward the surface. The capacity of the beam pumping system is set by the size of the downhole pump, the stroke length of the rod string, and the speed at which the rod string is reciprocated. When pump capacity exceeds wellbore fluid entry, the surface pumping unit can be set up to run intermittently by shutting down the pumping unit for a set period of time. | The surface pumping unit is made up of two primary components: a prime mover (motor) and a walking beam connected to a pivotal post. The walking beam operates like a seesaw on the pivotal post, providing a reciprocating motion to the rod string. On each upward stroke of the rod string, a volume of produced wellbore fluids is lifted upward in the tubing string toward the surface. The capacity of the beam pumping system is set by the size of the downhole pump, the stroke length of the rod string, and the speed at which the rod string is reciprocated. When pump capacity exceeds wellbore fluid entry, the surface pumping unit can be set up to run intermittently by shutting down the pumping unit for a set period of time. |