Enhanced geothermal systems and revitalization of deep wells as energy resources
Course objectives: Students will learn about principles of design and use of enhanced geothermal systems, abandoned well revitalization and deep borehole heat exchangers.
- Introduction to the course, course overview, student’s responsibilities and monitoring student work;
- Deep well revitalization, deep borehole heat exchanger system, hydrocarbon and geothermal fluid coproduction, workover needed in revitalization process, case studies of revitalized deep wells;
- Analytical modelling of heat transfer in the case of revitalized deep wells;
- Numerical modelling of heat transfer in the case of revitalized deep wells;
- Determining available thermal energy of the deep borehole heat exchanger;
- Technoeconimical analysis of using deep borehole heat exchanger systems and environmental influence;
- Types of enhanced geothermal systems - HDR (hot dry rock), EHS (enhanced hydrothermal systems), HSA (hot sedimentary aquifer), hydraulic fracturing in the case of enhanced;
- Geothermal systems, fluid flow through fractures, heat transfer;
- Modelling of enhanced geothermal systems;
- Case studies of enhanced geothermal systems - Soultz-sous-Forêts & Groß Schönebeck;
- Technoeconimical analysis of enhanced geothermal systems and environmental influence;
- Overview of regulations and directions of managing enhanced geothermal systems & revitalized wells.
Learning outcomes at the level of the course:
- Elaborate types of enhanced geothermal systems;
- Elaborate the revitalization process via deep borehole heat exchangers;
- Solve heat transfer equations;
- Evaluate available thermal energy when using deep borehole heat exchanger;
- Elaborate fluid flow through fractures and heat transfer in enhanced geothermal systems;
- Analyse environmental effects of using enhanced geothermal systems and deep borehole heat exchangers.