Abstract
ABSTRACT Predicting the performance of a sucker-rod pumping system is vital for optimizing/designing a system or diagnosing the problems associated with it. An accurate prediction of the system's performance is complicated because of the dynamic behavior of the sucker-rod string and the complex interactions between components of the system. This paper presents an application of a comprehensive mathematical model that predicts the surface and downhole dynamometer cards, production rates, downhole and surface forces, and energy consumption of sucker-rod pumping systems for a variety of operating conditions. The model is defined by a system of linear algebraic equations. The results of modeling are compared with the actual field measurements. The results show a very good match of the field data. Applications of the model are illustrated by example of the optimization of existing system and the design procedure of a new one.
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