Radio Frequency Heating and Solvent Injection Technology

L3Harris is implementing a unique thermal-enhanced oil recovery technology to improve the economics of heavy oil production while reducing environmental impact. This technology combines radio frequency (RF) heating with solvent injection, allowing for cleaner and more economical oil production from heavy oil and oil sands reservoirs at lower operating pressures when compared to current industry methods, such as Steam Assisted Gravity Drainage (SAGD).

Radio Frequency Heating

Similar to the way microwaves heat food, the Enhanced Solvent Extraction Incorporating Electromagnetic Heating (ESEIEH®) process utilizes HeatWave® to heat a reservoir in situ by transmitting radio waves. This eliminates the need for steam, associated water, and related capital expenses. L3Harris’ HeatWave® RF heating systems are based on decades of industry-leading RF development experience. The technology is designed to economically recover hydrocarbon resources while reducing the environmental impact when implemented as a part of the ESEIEH® process.

Enabling Efficient Extraction

The ESEIEH® process applies L3Harris’ patented HeatWave® antenna technology to heat a reservoir in situ with radio waves. A solvent is then injected to further mobilize the heavy oil by reducing viscosity. By significantly decreasing the energy required and largely eliminating the need for water, the ESEIEH® process will reduce environmental impact, while providing greater efficiency and versatility in oil recovery operations.

Why HeatWave®

The HeatWave® design benefits from decades of L3Harris radio technology expertise and extensive laboratory and field testing. With a modular design, easy integration, and essentially no need for water, HeatWave® is the key to improving the economics of heavy oil recovery.


  • Reduces greenhouse gas emissions by using less energy to produce oil
  • Minimizes capital outlay and enables incremental expansion
  • Minimizes facility footprint by largely eliminating the need for water and reducing produced water
  • Integrates into standard oilfield drilling services and completions
  • Accesses resource-rich pay zones previously inaccessible through mining or steam-based processes

Contact us to begin a field trial of HeatWave® in your heavy oil or oil sands reservoir.

Available HeatWave® and ESEIEH® services include: RF reservoir modeling and analysis; core sample analysis with RF dielectric characterization; technical consulting throughout project life, including production phase; and in situ RF heating systems design, installation, repair, and maintenance, including well monitoring and data resource management.