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About this Training Course
The Geothermal Resource Decision Workshop: Exploration of Fault-Hosted Deep Circulation Geothermal Systems is a 3-day intensive, hands-on program focused on the real-world decision-making process behind geothermal exploration and development. Using a progressive synthetic case study (“Frankenflow Prospect”), participants simulate the full lifecycle of a geothermal project—from early-stage exploration and conceptual modelling to drilling strategy, probabilistic resource estimation, economic evaluation, and power plant commitment decisions. The workshop mirrors the multidisciplinary collaboration required in actual geothermal developments.
Participants explore how geological, geochemical, geophysical, thermodynamic, and well data are integrated into evolving conceptual models. Through iterative exercises, they assess subsurface uncertainty, design exploration campaigns, target temperature gradient holes (TGH), slim holes, and production wells, and update probabilistic power capacity estimates. Financial modelling tools are incorporated to demonstrate how technical interpretations directly influence project economics and investment risk.
This workshop is particularly focused on fault-hosted deep circulation geothermal systems, which differ significantly from magmatic or volcanic-dominated systems. By combining geoscience interpretation with economic risk assessment, the course equips participants with a structured decision-making framework that balances technical uncertainty with financial constraints—ultimately preparing professionals to make informed, high-value geothermal investment decisions.
1. What is a fault-hosted deep circulation geothermal system?
This system forms when water moves deep through fault zones, heats up, and then rises again. Unlike magmatic systems, it does not depend mainly on shallow magma. Instead, it depends on fault flow paths and heat from deep rock. This process is central to any fault-hosted geothermal resource study.
2. How do teams estimate geothermal resource capacity?
Teams usually use volume or power density methods. First, they estimate how much heat the reservoir holds. Then, they turn that heat into possible power output. In addition, they use P10, P50, and P90 ranges to show uncertainty.
3. Why does conceptual modelling matter?
Conceptual modelling brings geology, geophysics, geochemistry, and well data into one clear picture. As a result, it helps teams map heat sources, fluid flow, and reservoir limits. It also helps them plan surveys and choose drill targets.
4. Which geophysical methods help in geothermal exploration?
Geothermal teams often use magnetotellurics, gravity surveys, and sometimes seismic surveys. For example, MT helps map resistivity and find clay caps or reservoir zones. However, each method works best when it fits the geology and the concept model.
5. What are temperature gradient holes?
Temperature gradient holes are shallow wells that measure underground temperature changes. They give early heat data and test heat flow ideas. Because they cost less than deep wells, they help lower early drilling risk.
6. What challenges do geothermal projects face?
Geothermal projects face subsurface uncertainty, high drilling costs, and hard-to-predict permeability. In addition, they may face scaling, fluid chemistry issues, and money risk. So, long-term reservoir care remains important.
7. How does geothermal exploration differ from oil and gas exploration?
Both sectors use drilling and subsurface models. However, geothermal projects target heat, not oil or gas. As a result, temperature, permeability, and fluid recharge matter more in geothermal work.