Simplified modeling of plunger-lift assisted production in gas wells

The model accounts for the pressure-volume (pV) work done by the pressurized gas in the annulus, including the energy needed to lift the liquid and gas on top of the plunger, and friction during the plunger movement. Because the dimensions and trajectory of the wellbore have such profound impact on the operability of plunger lift, operators can use this model by just providing the known input parameters to determine the design variables, target casing pressure, and duration of the plunger cycle.