Results 11 to 20 of about 393 (179)

Hydraulic stimulation strategies in enhanced geothermal systems (EGS): a review

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources, 2022
AbstractIn enhanced geothermal systems (EGS), the natural permeability of deep rocks is normally not high enough and needs to be increased. Permeability increase can be achieved through various stimulation methods, such as hydraulic, chemical, and thermal stimulation.
Jia, Yunzhong   +3 more
openaire   +2 more sources

Study on Libr/H2O absorption cooling system based on enhanced geothermal system for data center

open access: yesEnergy Reports, 2020
For solving the problems such as high energy consumption of cooling system of big DC and utilization of abandoned wells, this paper proposed Libr/H2O absorption cooling system based on enhanced geothermal system (EGS) using abandoned wells for DC, which ...
Bingbing Han   +4 more
doaj   +1 more source

The Effect of Silicate Ions on the Separation of Lithium From Geothermal Fluid

open access: yesFrontiers in Chemical Engineering, 2022
In an enhanced geothermal system (EGS), geothermal energy in rocks with insufficient permeability or fluid saturation can be used by creating artificial geothermal reservoirs.
Junbeum Lee   +3 more
doaj   +1 more source

Comparative Analysis of Power Plant Options for Enhanced Geothermal Systems (EGS) [PDF]

open access: yesEnergies, 2014
Enhanced geothermal systems (EGS) extract heat from underground hot dry rock (HDR) by first fracturing the HDR and then circulating a geofluid (typically water) into it and bringing the heated geofluid to a power plant to generate electricity. This study focuses on analysis, examination, and comparison of leading geothermal power plant configurations ...
Mengying Li, Noam Lior
openaire   +3 more sources

Fault slip potential induced by fluid injection in the Matouying enhanced geothermal system (EGS) field, Tangshan seismic region, North China [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2022
The Tangshan region is one of the most seismically active areas in the North China, and the 1976 M 7.8 earthquake occurred on 28 July near the Tangshan fault zone.
C. Feng   +10 more
doaj   +1 more source

Numerical Simulation on Heat Recovery Efficiency of Different Working Fluids in High-Temperature Rock Mass

open access: yesGeofluids, 2021
It is of great significance for the sustainable development of global energy to develop hot dry rock (HDR) geothermal resources by using enhanced geothermal system (EGS) technology.
Xu Dong   +5 more
doaj   +1 more source

Fracture Transmissivity in Prospective Host Rocks for Enhanced Geothermal Systems (EGS) [PDF]

open access: yesGeosciences, 2022
We experimentally determined the hydraulic properties of fractures within various rock types, focusing on a variety of Variscan rocks. Flow-through experiments were performed on slate, graywacke, quartzite, granite, natural fault gouge, and claystone samples containing an artificial fracture with a given roughness.
Johannes Herrmann   +4 more
openaire   +4 more sources

Earthquakes and very deep groundwater perturbation mutually induced

open access: yesScientific Reports, 2021
We report unique observations from drilling and hydraulic stimulation at a depth of approximately 4.3 km in two Enhanced Geothermal System (EGS) wells at the Pohang EGS site, South Korea.
Dugin Kaown   +10 more
doaj   +1 more source

A concept of a supercritical CO2 Brayton and organic Rankine combined cycle for solar energy utilization with typical geothermal as auxiliary heat source: Thermodynamic analysis and optimization

open access: yesEnergy Reports, 2022
This paper presents an investigation of a supercritical CO2 Brayton and organic Rankine (sCO 2-ORC) combined cycle for solar energy utilization. This combined cycle uses typical geothermal as auxiliary heat source to enhance its thermodynamic performance.
Yue Cao   +4 more
doaj   +1 more source

Investigation on the effect of symmetrical multi-well layout on geothermal energy extraction from a fractured granitic reservoir: A case study in the Gonghe Basin, Northwestern China

open access: yesEnergy Reports, 2021
Reasonably designing a multi-well layout has required attention to improve the enhanced geothermal system (EGS) productivity in a fractured reservoir.
Zhihong Lei, Yanjun Zhang
doaj   +1 more source

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