Challenges and opportunities for lithium extraction from geothermal systems in Germany—part 3: the return of the extraction brine

V Goldberg, A Dashti, R Egert, B Benny, T Kohl… - Energies, 2023 - mdpi.com
Lithium (Li) is considered a crucial element for energy transition due to its current
irreplaceability in Li-ion batteries, particularly in electric vehicles. Market analysis indicates …

Numerical simulation of multifracture HDR geothermal reservoirs

MD Aliyu, RA Archer - Renewable Energy, 2021 - Elsevier
This paper presents a three-dimensional (3D) numerical model of multifracture hot dry rock
(HDR) systems using coupled thermo-hydro-mechanical (THM) modelling processes …

Implications on large-scale flow of the fractured EGS reservoir Soultz inferred from hydraulic data and tracer experiments

R Egert, MG Korzani, S Held, T Kohl - Geothermics, 2020 - Elsevier
Abstract The Enhanced Geothermal System in Soultz-sous-Forêts, located in the geothermal
favorable Upper Rhine Graben, is a fracture-controlled reservoir that was highly investigated …

Heat extraction study of a novel hydrothermal open-loop geothermal system in a multi-lateral horizontal well

G Wang, X Song, C Yu, Y Shi, G Song, F Xu, J Ji… - Energy, 2022 - Elsevier
The efficient development of hydrothermal resource is an important focus in the global
geothermal industry. A novel hydrothermal open-loop geothermal system in a multi-lateral …

Stochastic 3D Navier‐Stokes flow in self‐affine fracture geometries controlled by anisotropy and channeling

R Egert, F Nitschke… - Geophysical Research …, 2021 - Wiley Online Library
This study presents a probabilistic analysis of 3D Navier‐Stokes (NS) fluid flow through 30
randomly generated sheared fractures with equal roughness properties (Hurst exponent …

The potential of depleted oil reservoirs for high-temperature storage systems

K Stricker, JC Grimmer, R Egert, J Bremer, MG Korzani… - Energies, 2020 - mdpi.com
HT-ATES (high-temperature aquifer thermal energy storage) systems are a future option to
shift large amounts of high-temperature excess heat from summer to winter using the deep …

Impact of structural uncertainty on tracer test design in faulted geothermal reservoirs

A Dashti, MG Korzani, C Geuzaine, R Egert, T Kohl - Geothermics, 2023 - Elsevier
Abstract Evaluation of underground processes requires numerical modeling based on
sophisticated and reliable meshing. Our new GeoMeshPy library focuses on the …

Risk of surface movements and reservoir deformation for high-temperature aquifer thermal energy storage (HT-ATES)

K Stricker, R Egert, E Schill, T Kohl - Geothermal Energy, 2024 - Springer
High-temperature aquifer thermal energy storage (HT-ATES) systems are designed for
seasonal storage of large amounts of thermal energy to meet the demand of industrial …

[HTML][HTML] Impact of thermosiphoning on long-term behavior of closed-loop deep geothermal systems for sustainable energy exploitation

M Esmaeilpour, MG Korzani, T Kohl - Renewable Energy, 2022 - Elsevier
Circulation of working fluid in closed geothermal loops is an alternative environmentally
friendly approach to harvest subsurface energy compared to open hole geothermal doublet …

Optimizing scenarios of a deep geothermal aquifer storage in the southern Upper Rhine Graben

I Stober, M Jägle, T Kohl - Geothermal Energy, 2023 - Springer
Based on a newly developed geological 3D reservoir model for the demonstration site of the
'Freiburger Bucht'in the Upper Rhine Graben (SW Germany), geothermal development and …