Tomasz Pacha, Dmytro Nekrasov and Halyna Shcherba,
TRIOL- Poland
As the global oil industry increasingly relies on unconventional and marginal assets, operators face a complex array of production challenges. These include high viscosity fluids, significant solid content, gas interference, and the need for deployment in deviated wellbores. Traditional lift methods, such as beam pumping and conventional rotary electric submersible pumps (ESPs), often reach their mechanical or economic limits under these conditions. This paper introduces a next-generation Linear Electric Submersible Pump (LESP) system that integrates advanced permanent magnet linear motor technology with intelligent control algorithms to address these specific downhole complexities.
The discussion focuses on the system's unique mechanical architecture, including a modular motor design and a plug-in power cable connection that significantly reduces rig time and maintenance complexity. Furthermore, the paper details specific proprietary software algorithms designed to manage "stuck" conditions and gas slugs autonomously. These include "Jogging" and "Swing" modes for freeing wedged pumps and gas plug removal logic that prevents underload faults. By combining robust hardware options—such as magnetic flow cleaners for paraffin control—with smart surface control, this technology offers a comprehensive solution for extending run life and optimizing production in challenging well environments.