Lex – Solution to cut CAPEX by 30% in slim wells drilling and install the ESP without well-kill operation

Solution to cut CAPEX by 30% in slim wells drilling and install the ESP without well-kill operation

Slim casing 5.5" (146 mm) wells and wells with cable deployed thru-tubing ESPs need special smaller-size equipment with the desired capacity level and high reliability. Our advanced solution is the 12,000 rpm Ultra-High-Speed ESP™ by Lex, whose dimensions provide cable deployment both through the casing of 5.5" (146 mm) or tubing of 3.5" (89 mm).

Solution to cut CAPEX by 30% in slim wells drilling and install the ESP without well-kill operation

Slim well drilling reduces the total drilling costs, including transportation and energy consumption, by up to 50%. So, the oil companies often use this approach to extract the remaining oil in place. 

At the same time, oil companies with slim wells 5.5″ (146 mm) or potential cable deployed thru-tubing ESP wells face ESP supply shortfalls of ESPs that would meet the desired reliability size, productivity, and head.

The wells come either idle waiting for suitable equipment, and the oil company incurs a significant loss, or they use alternative technologies, like small-size sucker rod pumps with a surface drive that do not unlock the potential of the well.

We have developed an innovative solution, a compact high-speed (up to 12,000 rpm) submersible pumping system (ESP) 29.5 ft (9 m) long. It can be cable-deployed thru slim casing or tubing through the wellhead lubricator without the need for well-killing. The minimum casing size is 3.5″ (89 mm).

Our new Ultra-High-Speed ESPTM by Lex, capable of up to 12,000 rpm, is based on aerospace industry achievements. It allows both to slim down the system for safe deployment through slim casings and increase resistance to harsh environments (gas, solids, deviations, etc.)

The implementation of our solution can reduce drilling CAPEX by up to 30% (given the initial slim well planning), decrease OPEX by saving time on pulling-and-running operations and dismantling/assembly of equipment, as well as a reduction in the risk of failure due to complicating factors with following downtime wells.

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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

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