Underlined names are links to current or past GEG members
REFEREED PUBLICATIONS IN JOURNALS
Brehme, M, Geothermal sweetspots identified in a volcanic lake integrating bathymetry and fluid chemistry, Scientific Reports Nature Research, pp. 1-10, 2019. [Download PDF] [View Abstract]We investigate fluid pathways beneath volcanic lakes using bathymetry and geochemical measurements to locate best-possible drilling sites. Highly permeable structures, such as faults, provide fluid channels that are the most suitable access points to the geothermal resource. Accurate mapping of these structures therefore guides the successful targeting of wells. Lakes, rivers or ocean, can hide surface footprints of these permeable structures, such as in our case beneath Lake Linau. High-resolution bathymetry identifies linear and conical discontinuities, which are linked to offshore tectonic structures as confirmed by surrounding outcrops and hot springs. Geochemical measurements document inflow of hot saline acidic water into the lake verifying bathymetry-located highly permeable structures. Integrating onshore well data, our bathymetry and chemical results locates an ideal drilling site into the geothermal reservoir beneath the western shore line of Lake Linau.
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Marko, A, M Toth, M Brehme, and J Madl-Szonyi, Assessing reinjection potential of abandoned hydrocarbon wells in the Zala region (SW Hungary) through hydraulic evaluation, European Geothermal Congress 2022, (in press).
Huenges, E, J Ellis, S Welter, R Westaway, K Min, A Genter, M Brehme, H Hofmann, P Meier, B Wassing, and M Marti, Demonstration of soft stimulation treatments in geothermal reservoirs, Proceedings World Geothermal Congress 2021, 2021.
Marko, A, A Galsa, B Czauner-Zentai, M Brehme, and J Madl-Szonyi, Geothermal Reinjection Problems from a Basin-scale Hydrogeological Perspective, Proceedings World Geothermal Congress 2021, 2021.
Brehme, M, K Nowak, A Marko, S Istvan, C Willems, and E Huenges, Injection triggered occlusion of flow pathways in a sedimentary aquifer in Hungary, Proceedings World Geothermal Congress 2021, 2021.
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Brehme, M, The role of fault zones on structure, operation and prospects of geothermal reservoirs-A case study in Lahendong, Indonesia, Dissertation, 2015.