Brief
Beam pump is the overground drive for a reciprocating piston pump installed in a borehole. It is used to mechanically lift liquid out of the well if there is not enough bottom hole pressure for the liquid to flow all the way to the surface. Pumping unit is commonly powered by an electric motor. Electrical energy will be transferred to the kinetic energy by runs a set of pulleys to the transmission which in turn drives a pair of cranks, generally with counter weights on them to assist the motor in lifting the heavy string of rods. Then, create a moving up & down motion. This motion will transfer a power along the sucker rod and activate a plunger pump down hole to create the pumping action like a piston in cylinder. A liquid will flow through the tubing string, a separated gas will flow through the casing, and combine together at the well head. After that all production will flow to the flow line. The size of the pump is also determined by the depth and weight of the oil to be removed, with deeper extraction requiring more power to move the heavier lengths of polish rod.