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Adaptive Hierarchical Fracture Model for Enhanced Geothermal Systems
Multiscale Modeling and Simulation, 2016Summary: In enhanced geothermal systems, cold working fluid (usually water) is injected into a fractured reservoir to enhance the efficiency of the power plant by increasing the conductivity of existing fractures and by creating new ones. For the modeling of single phase flow and transport in such dynamically changing fractured reservoirs, a new ...
Dimitris Karvounis, Patrick Jenny
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Stochastic Fracture Propagation Modelling for Enhanced Geothermal Systems
Mathematical Geosciences, 2014zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xu, C., Dowd, P.
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Fracture reactivation for permeability enhancement in geothermal systems
2020<p>While the deep granitic basement in the Upper Rhine Graben is currently being exploited as a geothermal reservoir at numerous geothermal sites, the Permo-Triassic sandstones that lie directly above the granite are critical to continued regional hydrothermal convection.
Alexandra Kushnir +3 more
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Characterisation of the Basel 1 enhanced geothermal system
Geothermics, 2008Abstract This paper describes the steps that have been undertaken to create an enhanced geothermal system (EGS) at the Deep Heat Mining Project in Basel, Switzerland. Preliminary results from drilling, logging, hydraulic testing and stimulating the Basel 1 well are summarized.
Markus O. Häring +3 more
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An investigation of stimulation mechanisms in Enhanced Geothermal Systems
International Journal of Rock Mechanics and Minings Sciences, 2014 AbstractWe review ten historical Enhanced Geothermal Systems (EGS) projects and find that typically, during injection: (1) flow from the wellbore is from preexisting fractures, (2) bottomhole pressure exceeds the minimum principal stress, and (3) pressure-limiting behavior occurs.
Mark W Mcclure, Roland Horne
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Magnetotelluric monitoring of permeability enhancement at enhanced geothermal system project
Geothermics, 2017Abstract Magnetotelluric (MT) data were collected across the Habanero Enhanced Geothermal System (EGS) project in the Cooper Basin, South Australia. A baseline regional MT survey consisting of two profiles were collected to delineate subsurface resistivity structure.
Didana, Y.L. +3 more
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Beyond Hydrocarbon Extraction: Enhanced Geothermal Systems
2016There are many forms of energy that exist subsurface. Mining typically extracts minerals that are energy rich and processes them to produce electricity. The oil and gas industry extracts hydrocarbons with high energy content that are suitable for energy production.
Masami Nakagawa +2 more
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Stress magnitudes in the Basel enhanced geothermal system
International Journal of Rock Mechanics and Mining Sciences, 2019Abstract This paper presents the results of an evaluation of stress magnitudes in the granitic EGS reservoir in Basel, Switzerland. The profile of minimum principal horizontal stress, Shmin, is constrained by hydraulic tests, but the magnitude of the maximum horizontal principal stress, SHmax is uncertain.
Benoît Valley, Keith F. Evans
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Overview of Closed–Loop Enhanced Geothermal Systems
2023In recent years, the focus of energy industries shifted toward geothermal energy utilization due to environmental concerns. Numerous studies were conducted on Closed-loop and Open-loop Enhanced Geothermal Systems to analyze their feasibility, efficiency, and durability.
ALAGOZ, Ekrem +4 more
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