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

Schill, E.; Meixner, J.; Meller, C.; Grimm, M.; Grimmer, J.C.; Stober, I.; Kohl, T.

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

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Volltext §
DOI: 10.5445/IR/1000057715
Originalveröffentlichung
DOI: 10.1186/s40517-016-0049-5
Scopus
Zitationen: 4
Coverbild
Zugehörige Institution(en) am KIT Institut für Angewandte Geowissenschaften (AGW)
Institut für Nukleare Entsorgung (INE)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator ISSN: 2195-9706
urn:nbn:de:swb:90-577150
KITopen-ID: 1000057715
HGF-Programm 35.14.01 (POF III, LK 01)
Erschienen in Geothermal Energy
Band 4
Heft 1
Seiten 4:7
Schlagworte Geothermal underground research laboratory, Fractured crystalline basement, Black forest, GeoLaB
Nachgewiesen in Scopus
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