Abstract

This paper presents advancements in electrical submersible pump (ESP) technology that were specifically designed for use in high-enthalpy geothermal wells. It discusses the unique challenges associated with geothermal operations and highlights the opportunities offered by the new ESP technology to enhance production from these wells. The paper also provides a comprehensive overview of the key components of the ESP system, including the motor, protector, pump, power cable, motor lead extension, and downhole sensors. The new ESP system demonstrates improved reliability, power density, and operational efficiency by using high-efficiency permanent magnet motors, innovative encapsulation technologies, and optimized pump designs. The paper also highlights the successful field trial of the newly developed geothermal ESP in Kizildere Field that showcased its enhanced reliability and increased production in a high-temperature environment. The findings from this trial have paved the way for the design and implementation of the new ESP system in additional high-enthalpy wells, further expanding the application of ESP technology to geothermal energy extraction. Overall, this paper underscores the transformative potential of ESP technology in enhancing the use of geothermal resources for sustainable energy production.