Lex – Solution to reduce failure risk in wells with high solids content

Solution to reduce failure risk in wells with high solids content

One of the major complicating factors in the artificial lift is the high solids content accelerating wear and reducing equipment performance. Our solution based on the Lex Ultra-High-Speed ESP (UHS ESP™) provides sustained performance of equipment at a solids content of up to 2,000 ppm (2,000 mg/l).

Solution to reduce failure risk in wells with high solids content

During the well operation, mechanical impurities are carried out from the formation into the well with the fluid. These solids are abrasives of reservoir rock, salts, unfixed proppant, solid inclusions from killing fluids, and corrosion products of downhole equipment.

Often, solids emissions have a volley nature, and the content of such solids may reach ultra-high values. The solids, getting into the pump, subject it to abrasive wear, clog the operating devices, block the movement of the shaft and lead to its breakdown.

To prevent the negative impact of solids, expensive wear-resistant equipment, upstream devices, and regular flushing of a submersible pump are usually used, causing the equipment idles. So, oil companies lose production and potential profits.

Our solution is based on modular design Lex Ultra-High-Speed ESPs (UHS ESPTM) using hard alloys and ceramic friction pairs to provide steady operation against the solids content of up to 2,000 mg/l, 4 times more than the limits set forth for any standard equipment. 

Implementation of our solution reduces by 40% the risk of equipment failures, unforced downtime for workover, and potentially production loss.

All solutions

Related products

Ultra-High-Speed ESP (UHS ESP™)

Ultra-High-Speed ESP (UHS ESP™)

Lex Ultra-High-Speed ESP (UHS ESP™), driven by a permanent magnet motor (PMM) and having an operating speed range from 1,000 to 12,000 rpm, is unrivaled worldwide. Due to its high nameplate operating speed of 10,000 rpm, the length of the UHS ESP™ is 2–3 times shorter than any conventional ESP. The efficiency of the Permanent Magnet Motor exceeds 91%, the use of hard-alloy materials gives our modular pump the abrasion resistance up to 2,000 ppm (2,000 mg/l).

Universal Permanent Magnet Motors

Universal Permanent Magnet Motors

We develop and continually improve Lex Universal Permanent Magnet Motor (Universal PMM) technology, an alternative way to provide rotational energy for electrical submersible, screw or sucker rod pumps. Lex features a product range of Lex UPMM from 85 to 12,000 rpm operating speeds, high efficiency up to 95%, operational flexibility, lower motor heating rise, stable operation at any frequencies, and high-temperature environments up to 392 °F (200 °C).

Related case studies

-70% energy saving, -50% total cost of ownership economy at field in Republic of the Congo, Middle Africa
Runlife has been increased by 4 times, -29% total cost of ownership economy at onshore and offshore fields in Democratic Republic of the Congo, Middle Africa
Zero failures out of 300+ UHS ESP™ installations due to wear when 2,000 ppm of the solids content in produced fluid at fields in Western Siberia, Russia