Lex Ultra-High-Speed ESP (UHS ESP™) with an operating speed

Ultra-High-Speed ESP (UHS ESP™)

We’ve developed our innovative PMM-driven Ultra-High-Speed ESP (UHS ESP™) with an operating speed between 1,000 and 12,000 rpm. UHS ESP™ provides effective operation in harsh well conditions, with limited power supply, and below perforation range.

UHS ESPTM advantages vs. standard equipment


Lex Ultra-High-Speed ESP (UHS ESPTM) effectively increases well production, power-saving and provides reliable operation in harsh conditions. Before each installation, we analyze the relevant well-specific data and make calculations to inform a customized selection of equipment for every well.

Since 2016, we have installed more than 500 units at offshore and onshore projects worldwide.

UHS ESPTM is the world’s first ultra-high-speed ESP system with the broadest operating range of 1,000 through 12,000 rpm and is adaptable to any unstable inflow. High operating frequencies result in 8-16 times more head per stage, 2-3 times shorter length than any conventional ESP and higher overall efficiency. The revolutionary modular design and hard alloys with ceramic friction pairs quadruple the resistance to solids to 2,000 ppm (2,000 mg/L) vs. standard equipment.

UHS ESPTM consists of the following components: a modular energy-saving pump, ultra-high-speed submersible Universal Permanent Magnet Motor (Universal PMM) by Lex, high-temperature four-bag seal, rotary gas separator, cooling system, shroud, and Hunter telemetry system.

We design and customize equipment packages using both third-party and proprietary software. Unlike conventional equipment, UHS ESPTM is tested and fully assembled at the manufacturing facility. After testing, it is delivered to the site ready for installation, requiring only unloading and MLE connection through the roller on the motor. This means that installing the UHS ESPTM is 3–4 times faster than installing a standard ESP, and the risk of installation error is significantly reduced.

Ultra-High-Speed ESP


  • Deviated wells having extra production potential; 
  • Wells having extra production potential and the possibility of installing under the perforated interval, including gassy wells;
  • Wells with higher energy consumption and limited power supply;
  • Low-rates wells more than 50 bblpd (8 m3/day);
  • Harsh conditions: highly deviated wells, unstable inflow, low production rate, wells with high free gas content and solids;
  • Remote fields with equipment delivery by helicopters;
  • Unstable or varying inflow after drilling, hydraulic fracture treatment, or bottom-hole treatment of the well.

Application limits

  • Min casing size 5.5” (139.7 mm);
  • Max sand content 2,000 ppm (2,000 mg/l);
  • Max free gas at intake 75%;
  • Max reservoir temperature 302 °F (150 °C).
Ultra-High-Speed ESP


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    Artificial lift methods are used to operate most of the wells around the world. We design, improve, manufacture, supply, and service advanced artificial lift equipment for any downhole environment. The high quality and reliability of Lex technologies and equipment are assured by our compliance with the requirements of API and NACE / ISO industry standards.

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