System Identification Methodology For Oil Production Wells With Electrical Submersible Pumping

This article presents the selection of a model for the system consisting of the reservoir, the well and the electrical submersible pumping, which constitutes the starting point of an identification methodology proposed for this kind of system. The identification procedure follows a series of steps that include an initial parameters setting, operational data preprocessing, unknown parameters estimation and validation of the resulting model. The methodology was described as a standard procedure to use in different identification cases. In particular, it was implemented for a real case obtaining an identified model that was then validated according to the quality of the fit, demonstrating its utility. This practical approach considered facts as the operational data availability and the model utilization in simulation and implementation environments, showing the feasibility to use it to represent the system, especially in applications that require the control of it or the prediction of its behavior.