The One of the two major Well Controls with Lift Mechanism is maintaining maintaining the manually specified bottom-hole pressure (for producers) or THP (for injectors Injectors).
The pressure control Pressure Control is a usual condition for water injectors and gas injectors and specified by the THP maintained by the ground booster pump with discount fo the pressure losses along the pipelines and the wellhead choke.
In this case a reservoir takes as much fluid as it can depending on quality on formation pressure quality of well-reservoir contact and , reservoir capacity and , reservoir transmissibility around a given injector.
Sometimes producing wells produce at nearly constant bottomhole pressure, when it is being reduced by the downhole pump to its minimal value
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In this case the liquid rate is starts declining
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This does not actually qualifies this production the well operation as Pressure Control and the well is still under Liquid Control conditions and once bottomhole pressure raises above minimal the pump returns to producing the target liquid rate
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See Also
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Petroleum Industry / Upstream / Production / Subsurface Production Operations / Well Control
[ Liquid Control ]
[ Pressure Control (Dynamic Modelling) ]
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