Description du projet
Fracturer en douceur les roches chaudes pour exploiter la chaleur des réservoirs géothermiques
Le noyau de la Terre est un brasier incroyablement chaud. Une partie de sa chaleur atteint la croûte terrestre, ce qui permet à l’homme d’y accéder. Les systèmes géothermiques améliorés sont conçus pour exploiter cette chaleur en tant que forme d’énergie durable à diverses fins, y compris la production d’électricité. Ils injectent un fluide dans le sol, ce qui provoque la réouverture des fractures préexistantes et permet au fluide de circuler et d’absorber la chaleur. S’appuyant sur des projets antérieurs et sur les progrès scientifiques réalisés dans d’autres domaines (principalement le secteur du pétrole et du gaz), le projet DESTRESS, financé par l’UE, adaptera les méthodes de «stimulation» récemment mises au point aux applications géothermiques. L’équipe se concentrera sur la «stimulation douce», tout en répondant aux préoccupations du public liées à la fracturation.
Objectif
DESTRESS is aimed at creating EGS (Enhanced geothermal systems) reservoirs with sufficient permeability, fracture orientation and spacing for economic use of underground heat. The concepts are based on experience in previous projects, on scientific progress and developments in other fields, mainly the oil & gas sector. Recently developed stimulation methods will be adapted to geothermal needs, applied to new geothermal sites and prepared for the market uptake. Understanding of risks in each area (whether technological, in business processes, for particular business cases, or otherwise), risk ownership, and possible risk mitigation will be the scope of specific work packages.
The DESTRESS concept takes into account the common and specific issues of different sites, representative for large parts of Europe, and will provide a generally applicable workflow for productivity enhancement measures. The main focus will be on stimulation treatments with minimized environmental hazard (“soft stimulation”), to enhance the reservoir in several geological settings covering granites, sandstones, and other rock types. The business cases will be shown with cost and benefit estimations based on the proven changes of the system performance, and the environmental footprint of treatments and operation of the site will be controlled. In particular, the public debate related to “fracking” will be addressed by applying specific concepts for the mitigation of damaging seismic effects while constructing a productive reservoir and operating a long-term sustainable system.
Industrial participation is particularly pronounced in DESTRESS, including large energy suppliers as well as SMEs in the process of developing their sites. The composition of the consortium involving major knowledge institutes as well as key industry will guarantee the increase in technology performance of EGS as well as an accelerated time to market.
Champ scientifique
Not validated
Not validated
- social scienceseconomics and businesseconomicsproduction economicsproductivity
- engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsensors
- natural sciencesearth and related environmental sciencesenvironmental sciencespollution
- social sciencessociologygovernancecrisis managementseismic risk management
- engineering and technologyenvironmental engineeringenergy and fuelsrenewable energygeothermal energy
Programme(s)
- H2020-EU.3.3. - SOCIETAL CHALLENGES - Secure, clean and efficient energy Main Programme
- H2020-EU.3.3.2.4. - Develop geothermal, hydro, marine and other renewable energy options
- H2020-EU.3.3.2.2. - Develop efficient, reliable and cost-competitive solar energy systems
- H2020-EU.3.3.2.1. - Develop the full potential of wind energy
Régime de financement
IA - Innovation actionCoordinateur
14473 POTSDAM
Allemagne