The project is a key milestone for scalable closed-loop geothermal energy and shows that ongoing innovation and learnings will transform the economics of closed-loop geothermal globally.
The paper presents a comprehensive review of drilling performance across multi-lateral sections, validating the commercial viability and scalability of the Eavor-Loop™ technology for global markets.
Key performance highlights:
- 50% reduction in drilling time per lateral and 3x improvement in bit run lengths, thanks to iterative designs and operational improvements.
- Deployment of enabling technologies like Insulated Drill Pipe (IDP), Active Magnetic Ranging (AMR), and Rock-Pipe™ sealant, which together reduce cost, improve precision, and extend reach in high-temperature environments.
- Lessons learned from sidetracking and intra-lateral hydraulic communication challenges that are now informing next-generation drilling strategies.
- A path to 35% more energy output per loop, with implications for geothermal scalability across Europe and beyond.
Technology and Innovation highlights:
- Insulated Drill Pipe (IDP): IDP is a critical tool for adapting existing oil and gas directional tools to perform in hotter and harsher geothermal environments. Since wellbore intersections require precise directional control, IDP is a core enabling technology for Eavor-Loop™ development.
- Eavor-Link™ Active Magnetic Ranging (AMR): Implementing the proprietary ranging system reduced the time dedicated to wellbore intersection and ranging activities by more than 80% compared to conventional wireline methods.
- Rock-Pipe™ Sealant: Eavor’s proprietary sealing methodology was used to seal the open-hole laterals, reducing well construction costs by over 40% compared to cemented casing.
“The advancements and lessons learned at Geretsried are translating into a competitive Levelized Cost of Heat (LCOH) along with a significant increase in energy output potential for future projects,” said Jeanine Vany, co-founder and Executive Vice President of Corporate Affairs at Eavor.
“Coming down that initial learning curve and proving the technology at Geretsried, provides additional confidence for Eavor-Loop™ to scale globally as a source of reliable, flexible, carbon-free energy. These advancements bring Eavor closer to fulfilling our mission of enabling local clean energy autonomy, everywhere.”
