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Criteria and geological setting for the generic geothermal underground research laboratory, GEOLAB

Schill, E. ORCID iD icon 1; Meixner, J. 2; Meller, C. 2; Grimm, M. 2; Grimmer, J. C. ORCID iD icon 2; Stober, I. 2; Kohl, T. 2
1 Institut für Nukleare Entsorgung (INE), Karlsruher Institut für Technologie (KIT)
2 Institut für Angewandte Geowissenschaften (AGW), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

High flow rate injection and related hydromechanical interaction are the most important factors in reservoir development of Enhanced Geothermal Systems (EGS). GeoLaB, a new generic geothermal underground research laboratory (URL), is proposed for controlled high flow rate experiments (CHFE) to address limited comprehension of coupled processes connected to EGS reservoir flow conditions. As analogue for typical EGS development, CHFE require specific hydromechanical conditions including a connected fracture network in crystalline basement rock, sufficient hydraulic fracture transmissivities, a strike-slip to normal faulting tectonic regime, controllable hydraulic boundary conditions, and hydrothermal alteration fracture fillings that improve conditions for hydromechanical interaction. With the aim to identify most appropriate areas for future site selection, four criteria have been established based on the EGS reference site of Soultz. Two URLs in crystalline basement worldwide approximate the requirements of a new generic GeoLaB and may be used for accompanying experimentation. Besides favourable geological, hydraulic, and stress conditions, the vicinity to long-term EGS production favours the southern Black Forest as potential region for GeoLaB. ... mehr

Volltext §
DOI: 10.5445/IR/1000057715
DOI: 10.1186/s40517-016-0049-5
Zitationen: 14
Zitationen: 15
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Geowissenschaften (AGW)
Institut für Nukleare Entsorgung (INE)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2016
Sprache Englisch
Identifikator ISSN: 2195-9706
KITopen-ID: 1000057715
HGF-Programm 35.14.01 (POF III, LK 01) Effiziente Nutzung geothermisch. Energie
Erschienen in Geothermal Energy
Verlag SpringerOpen
Band 4
Heft 1
Seiten 4:7
Schlagwörter Geothermal underground research laboratory, Fractured crystalline basement, Black forest, GeoLaB
Nachgewiesen in Scopus
Globale Ziele für nachhaltige Entwicklung Ziel 7 – Bezahlbare und saubere Energie
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