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Improving the operational conditions for the sucker-rod pumping system

In this work a new perspective of a sucker-rod pumping system control is presented. The strategy consists in associating the bottom hole pressure measurement and dynamometer cards analysis in a cascaded control. In the proposal, the widely applied control strategies based on dynamometer cards are combined with the strategy based on the measurement of the bottom hole pressure, since the development of low cost downhole sensors turned possible the measurement of downhole variables. The simulation results are analyzed in order to evaluate the operational conditions propitiated by the sucker-rod pumping cascaded control, in a hardware in the loop platform.