Moving Beyond Nodal Analysis for ESP Optimization in the Curito Field

William Guerra, Edeberto Finol, Javier Solorzano, Wilson Benavides – Pacific Stratus Energy; Sandy Williams, Artificial Lift Performance Ltd
This paper was prepared for presentation at the 2015 Society of Petroleum Engineers – Gulf Coast Section Electric Submersible Pump Workshop held in The Woodlands, Texas   April 22-24, 2015.
This paper was selected for presentation by the ESP Workshop Panels (Rotating and Permanent) following review of information contained in an abstract submitted by the author(s). Contents of the paper, as presented, have not been reviewed by the ESP Workshop Panels and are subject to correction by the author(s). The material, as presented, does not necessarily reflect any position of the ESP Workshop or its panel members. The author(s) retain copyright to this paper and have given permission to the ESP Workshop to publish it in proceedings (electronic and hardcopy). Any other electronic reproduction, distribution, or storage of any part of this paper for commercial purposes without the written consent of the author(s) is prohibited.
Optimisation of production, runlife increase and minimisation of downtime results in the lowest $/bbl cost of production, which is the goal for any operator using ESPs. This paper will present the results of a 2 month pilot program to optimise ESPs, using real-time data from a SCADA system and PI historian (called SIGO), pushed real-time to an ESP analysis engine (Pump Checker), which provided automated ESP analysis for every new well test.
The ESP analysis application diagnoses degradation in the ESP due to effects such as wear, deposition, plugging, spinning diffusers or even wrong pump rotation. As well as quantifying the amount of pump degradation, the software determines the amount of lost production (gross and net) and validates well IPR.
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