Results 1 to 10 of about 804 (168)

Design and optimization of a downhole coaxial heat exchanger for an enhanced geothermal system (EGS) [PDF]

open access: yesRenewable Energy, 2013
The present study considers the design, performance analysis and optimization of a downhole coaxial heat exchanger for an enhanced geothermal system (EGS).
Bello-Ochende, Tunde   +2 more
core   +4 more sources

Heat Production Performance from an Enhanced Geothermal System (EGS) Using CO2 as the Working Fluid

open access: yesEnergies, 2023
CO2-based enhanced geothermal systems (CO2-EGS) are greatly attractive in geothermal energy production due to their high flow rates and the additional benefit of CO2 geological storage.
Yulong Yin   +9 more
core   +2 more sources

Utilization of Discrete Fracture Network (DFN) in Modelling and Simulation of a Horizontal Well-Doublet Enhanced Geothermal System (EGS) with Sensitivity Analysis of Key Production Parameters

open access: yesEnergies, 2022
Projects that feature unconventional geothermal systems are complex and come at great investment risk and high project cost. The purpose of this work is to present a method for modelling an enhanced geothermal system (EGS) that utilizes a horizontal well-
Damian Janiga   +2 more
core   +2 more sources

Modeling heat transport processes in enhanced geothermal systems: A validation study from EGS Collab Experiment 1 [PDF]

open access: yes, 2021
Heat recovery from an enhanced geothermal system (EGS) is a complex process involving heat transport in both fracture networks and rock formations. A comprehensive understanding of and the ability to model the underlying heat transport mechanisms is ...
Schwering, Paul C   +15 more
core   +1 more source

Techno-Economic feasibility of enhanced geothermal systems (EGS) with partially bridging Multi-Stage fractures for district heating applications

open access: yes, 2022
Here, we investigate the techno-economic feasibility of an enhanced geothermal system (EGS) for direct heating, using a new horizontal-well with partially-bridging fractures design. To do this, we developed numerical models to evaluate reservoir dynamics
Archer, R, Yu, P, Dempsey, D
core   +1 more source

Hydraulic stimulation of tight geothermal reservoirs

open access: yes, 2023
To extend geothermal-energy power generation from hydrothermal systems to places without anomalies in the geothermal gradient, fractures of low-permeability rock- typically at 4-6 km depth to find
Tangirala, Sri Kalyan   +2 more
core   +1 more source

Phase-Field Modeling of Coupled Thermo-Hydromechanical Processes for Hydraulic Fracturing Analysis in Enhanced Geothermal Systems

open access: yes, 2023
Abundant geothermal energy can be harvested from deep, low-permeability rocks using an enhanced geothermal system (EGS) that relies on an artificially created permeable fracture network through cold water injection.
Kenji Furui, Vaya Putra
core   +1 more source

Development of a Plan to Implement Enhanced Geothermal Systems (EGS) in the Animas Valley, New Mexico - Final Report - 07/26/2000 - 02/01/2001 [PDF]

open access: yes, 2001
The concept of producing energy from hot dry rock (HDR), originally proposed in 1971 at the Los Alamos National Laboratory, contemplated the generation of electric power by injecting water into artificially created fractures in subsurface rock formations
Cunniff, Roy A., Schochet, Daniel N.
core   +1 more source

A three-dimensional investigation of the thermoelastic effect in an enhanced geothermal system reservoir

open access: yes, 2023
During heat extraction in enhanced geothermal system (EGS) reservoirs, thermal contraction is induced by cold fluid injection, resulting in thermoelastic deformation.
Finkbeiner, Thomas   +6 more
core   +1 more source

Influence Factors on EGS Geothermal Reservoir Extraction Performance

open access: yes, 2022
The heat extraction performance of the enhanced geothermal system is simulated by using COMSOL software. The effects of six factors, such as the thermal conductivity of heat reservoir, matrix permeability, fracture width, injection temperature, injection
Haitao Wang, Zude Cheng, Lijuan Wang
core   +1 more source

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