Technologies Available for License

2026-020: Engineered Non-Clinkered Cementitious Materials for Geothermal Wells

Invention: 2026-020

Patent Status: Provisional filed on June 17, 2026

For technical and licensing related questions, email tcp@bnl.gov.

Summary

High-temperature geothermal wells, including Enhanced Geothermal Systems (EGS) and Superhot Rock (SHR) wells, require cementitious materials capable of maintaining long-term mechanical integrity under hydrothermal conditions exceeding 250–350^oC. Conventional geothermal well construction relies primarily on Ordinary Portland Cement (OPC)-based systems and, in more aggressive environments, calcium aluminate cement (CAC)-based systems. However, these materials exhibit significant limitations under extreme geothermal conditions. Brookhaven researchers have developed various cementitious materials for using in high-temperature geothermal wells.

Description

Journal Publication & Intellectual Property

• Non-clinkered Calcium Carbonate Based Cementitious Composites for Enhanced Geothermal Systems (EGS) (.pdf)