This paper presents the results of an ongoing extended field trial on multiple ESP systems in a SAGD field in Canada. The main objective of this field trial is to evaluate the impact of the condition monitoring technology introduced in this paper to address a gap in predictive and preventative maintenance programs for ESP applications. Specifically, the results are used to determine the ability to monitor and quantify the impact of (a) power quality, (b) adverse flow regime and (c) undesirable mechanical vibrations on ESP production and reliability using data extracted from electrical lines supplying the power to ESPs. The data collected from several wells on a single production pad were trended over several months to determine warning thresholds and subsequently operational recommendations to improve overall production and reliability performance. The information collected from this field trial is intended to demonstrate the effectiveness and benefits of this condition monitoring approach in the Operators field.

The described condition monitoring technology is based on measurements of high frequency electrical signals, 3-phase current and voltage, from the VFD panel supplying power to the ESP. Previous SPE papers, SPE-201169-MS and SPE-204522-MS, covered the core concept and enabling components of this technology. These papers shows examples on mechanical, electrical and flow regime diagnosis and demonstrated a direct correlation between the periodic mechanical vibration in an ESP and the frequency component in the electrical current signals. This foundational work was largely the basis of the extended field trial discussed in this paper. The results, presented in this paper, demonstrate interesting findings in how this method of condition monitoring can provide meaningful insights into the operation and reliability of the operating ESP systems.

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