Estudio de tendencias históricas de los parámetros de operación de los equipos de bombeo eléctrico sumergible del Bloque 61 – Auca.

Abstract

The real-time monitoring parameters of an Electric Submersible Pump system (ESP) plotted over time, generate trend curves trends whose interpretation in conjunction, allows the identification of the adverse conditions that are affects the performance of the ESP system and propitiate its failure. In this study were analyzed the historical curves of the monitoring parameters of the ESP systems registered in a reliability base, which were pulled from the well and whose cause of failure was identified through the dismantling inspection and failure analysis. Subsequently, we proceeded to identify the trends that each of the curves presented as a response to the condition that generated its failure. In order to do this, it was applied the qualitative methodology and the inductive method that led us to the study specific and relevant cases. As results of this study, we present the behavioral trends of the monitoring curves associated to a certain operation condition which generated equipment failure. Due to the number of factors that can influence the behavior of the ESP monitoring parameters and therefore, the difficulty of identifying the condition that generates a certain trend in the monitoring curves, we proceeded to evaluate modeling methods for the generation of algorithms. It was determined that among the different types of modeling, the modelling based on expert knowledge in conjunction with the fuzzy logic and the trends resulting from this study, would allow to generate an algorithm to determine the degree of true that a certain condition could be affecting the performance of ESP system in order to prevent its failure.