Laufzeit

• 2016-2020

Zuwendungsgeber

• European Union H2020-LCE-2015-2 (total €25M, EU contribution €10M)

Projektverantwortliche

• Günter Zimmermann, GFZ Sektion 6.2, GFZ Potsdam, Deutschland
• Arno Zang, GFZ Sektion 2.6, GFZ Potsdam, Deutschland

ProjektmitarbeiterInnen

• Marton Pal Farkas (PhD student), GFZ Sektion 6.2, GFZ Potsdam, Deutschland
• Hannes Hofmann (PostDoc), GFZ Sektion 6.2, GFZ Potsdam, Deutschland
• Jeoung Seok Yoon (PostDoc), GFZ Sektion 2.6, GFZ Potsdam, Deutschland

Projektwebseite 

• www.destress-h2020.eu/home/

Kooperationen

• 16 European and East Asian research institutions, universities and industry representatives (large energy suppliers and SMEs)

Koordinator: Prof. Ernst Huenges, Manager: Dr. Justyna Ellis: Key personal,

DESTRESS demonstrates methods of enhanced geothermal systems (EGS). The aim is to expand knowledge and to provide solutions for a more economical, sustainable and environmentally responsible exploitation of underground heat. DESTRESS will improve the understanding of technological, business and societal opportunities and risks related to geothermal energy. Existing and new project sites have been chosen to demonstrate the DESTRESS concept. The demonstration sites are using soft stimulation treatments to minimize environmental hazards.

WP5: Demonstration cyclic hydraulic and multi stage treatments in granites and tight sandstones

The demonstration of cyclic hydraulic treatments and of multi-stage stimulation in granites, granodiorites and/or in tight sandstones is a crucial part of DESTRESS. It should be shown a treatment method applied with reduced seismic and environmental risks and plannable results. Part of the work is the development of specific components for the multistage stimulation such as packer and fiber optic connection device. The experience gained through the demonstration will provide good practices or standards for future applications. These practices are expected to evolve with time as experiments from test sites and conclusions from data analysis will become available. The evaluation of the results includes the economics.

wichtige Publikationen:

• Zang A, Bruhn D, Majer E (eds) (2014) Special Issue Induced Seismicity in Geothermal Operations” Part I, Geothermics 52, 1-131.

• Zang A, Bruhn D, Majer E (eds) (2014) Special Issue “Induced Seismicity in Geothermal Operations” Part II, Geothermics 52, 132-220.

• Farkas MP, Dankó G, Yoon JS, Zang A, Zimmermann G, Stephansson O (2017), Interpreting Multistage Minifrac Tests Using Discrete Element Modeling of Foliated Rock with Various Drilling Mud Properties. Procedia Engineering 191: 233-241, doi.org/10.1016/j.proeng.2017.05.176

• Kwiatek G, Plenkers K, Martinez Garzon P, Leonhardt M, Zang A, Dresen G (2017), New Insights into Fracture Process through In-Situ Acoustic Emission Monitoring during Fatigue Hydraulic Fracture Experiment in Äspö Hard Rock Laboratory. Procedia Engineering 191: 618-622, doi.org/10.1016/j.proeng.2017.05.225

• Lopez Comino J, Heimann S, Cesca S, Milkereit C, Dahm T, Zang A (2017), Automated Full Waveform Detection and Location Algorithm of Acoustic Emissions from Hydraulic Fracturing Experiment. Procedia Engineering 191: 697-702, doi.org/10.1016/j.proeng.2017.05.234

• Yoon JS, Zang A, Stephansson O, Hofmann H, Zimmermann G (2017), Discrete Element Modelling of Hydraulic Fracture Propagation and Dynamic Interaction with Natural Fractures in Hard Rock. Procedia Engineering 191: 1023-1031, doi.org/10.1016/j.proeng.2017.05.275

• Zang A, Stephansson O, Zimmermann G (2017), Keynote: Fatigue Hydraulic Fracturing. Procedia Engineering 191: 1126-1134, doi.org/10.1016/j.proeng.2017.05.287