Thru-Tubing ESP (TT ESP™)

Electric Submersible Pump

Thru-Tubing ESP (TT ESP™)

The Lex Thru-Tubing ESP (TT ESP™) is a compact, high-speed artificial lift system developed to rapidly restore production in idle or non-operating oil, gas, and geothermal wells. Through rigless cable deployment via 3.5″ (89 mm) tubing and ultra-high operating speeds up to 12,000 rpm, it enables fast installation without killing the well, reduces downtime, and delivers stable performance, increased drawdown, and lower operating costs, even in harsh, high-gas, and high-temperature environments.

Downtime reduction by 80%

GFV at Intake up to 50 %

Max. Efficiency of Permanent Magnet Motor 90 %

Advantages

We have developed the upgraded Lex Thru-Tubing ESP (TT ESP™) that is cable deployed through the 3.5″ (89 mm) tubing. The system can quickly resume production in idle or non-operating wells caused by planned maintenance or pump failure. Compact TT ESP™ is riglessly cable-deployed into the tubing through the wellhead. The technology successfully replaces an expensive workover and prevents clogging of the bottom-hole area without killing fluid. The high nameplate operating speed (12,000 rpm) of the ESP and PMM ensure a compact design and much easier installation.

No Rig Required

System installation does not require a workover rig.

Wellhead Assembly

Equipment can be assembled directly through an existing wellhead.

No Well Killing Required

Installation does not require killing the well or clogging the bottom-hole area.

Fast Installation

Designed for quick and simple installation with minimal downtime.

Compact Design

Short and slim equipment configuration simplifies deployment in the well.

Harsh Condition Resistance

High tolerance to free gas, solids, high temperature, and corrosive fluids.

Improved Production

Increases drawdown and overall production performance.

Lower Operating Costs

Provides power savings and reduced OPEX.

Overview

Downtime of wells caused by pump failure results in multimillion losses for oil-producing companies. The workover can take from one week to six months in some cases, often due to delays in the arrival of the workover crew, disassembly and replacement of the submersible equipment and commissioning.

We’ve developed an advanced solution that is especially effective for offshore, hard-to-access, or remote fields. A compact TT ESP™ system (up to 12,000 rpm), 29.5 ft (9 meters long), is cable-deployed through the wellhead lubricator. The system can reduce downtime by 80% and resume production in just a few hours. The cable deployed TT ESP™ technology is essentially a system where the components are inverted in comparison with standard ESP: VSD – motor – seal section – gas separator – pump – packer.

Applications

Offshore fields and remote wells

Wells with harsh environments

Small-size wells with 3.5″ (89 mm) tubing

Application Limits

Note: Operating within these limits ensures optimal performance and equipment longevity.

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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.