Method, system and device for determining liquid extraction parameters of electric submersible pump producing well

The invention provides a method, a system and a device for determining liquid extraction parameters of an electric submersible pump producing well, relates to the technical field of oil production engineering, and aims to solve the technical problems that an existing liquid extraction parameter determination method has limitation and cannot be widely applied to most electric submersible pump producing wells. The method for determining the liquid extraction parameters of the electric submersible pump producing well comprises the steps of obtaining basic data of a target single well; determining a first curve according to the basic data, wherein the first curve is a relative relation curve of the daily fluid production capacity and the flowing bottomhole pressure; according to the first curve, whether the target single well has the liquid extraction potential or not is judged; if yes, determining a second curve and a third curve according to the basic data; determining the liquid extraction time according to th