The One if the two Well Controls with Lift Mechanism is maintaining trying to maintain the manually specified offtake (volume per time unit). value of the flowrate.
Liquid control is most common for producing wells, except the case when bottomhole pressure is being reduced by the downhole pump to its minimal value, specified by the pump location inside the wellbore.
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Despite that many wells are operating under pressure control de facto they can be still simulated as under Liquid control assuming that their liquid rates have been manually pre-set adequately by Production technologist.
See also
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Dynamic Flow Model (DFM)Petroleum Industry / Upstream / Production / Subsurface Production Operations / Well controlControl
[ Pressure Control ]
[ Liquid Control (Reservoir Flow Modelling) ]
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