Bryan Higgins

Journal Article Energy Conversion and Management · January 15, 2026 Former oil/gas wells can be converted into geothermal wells by retrofitting them with a coaxial borehole heat exchanger (CBHE). While previous research has largely focused on direct heating applications for retrofitted vertical oil/gas wells, most onshore ... Full text Cite

Techno-economic assessment of repurposing oil & gas wells for Enhanced Geothermal Systems: A New Mexico, USA feasibility study

Journal Article Energy Conversion and Management X · October 1, 2024 Enhanced Geothermal Systems (EGS) produce renewable power that can complement variable renewable sources such as wind and solar, but EGS is expensive to deploy due to high cost of drilling geothermal wells. Repurposing abandoned or declining oil and gas we ... Full text Cite