This work arises from the comprehensive study of a park of 50 wells with artificial lift pumping systems. These have intelligent well controllers and telemetry systems with downhole calculation modules deriving from the processing of dynamometry and surface production data.

In both controllers and telemetry software, dynamometer cards are processed using wave equation algorithms applied to vertical wells. These calculation methods do not consider the effects of Columbian frictions in deviated wells.

The aim of the study was to compare the dynamometer cards obtained using controllers and telemetry with other external softwares that do consider Coloumbian frictions and their effects in deviated wells. The goal was to assess whether, despite the limitations of the analysis, the results were acceptable to determine conditions of fluid pound, run algorithms to control pump filling, and to analyze Goodman diagram applied to sucker rods. Thus, it is possible to describe the scope of the technology available in the field to optimize wells in real time and to provide an operational diagnostic.

Within the framework of the above-mentioned study, and as part of the need to understand the high rate of early faults observed in wells, advanced studies of speed and cycle times of pump strokes were conducted. This paper focuses on the specific findings obtained as regards this topic.

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