Results 11 to 20 of about 804 (168)

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

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources, 2022
In 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 ...
Niemi, Auli   +6 more
core   +3 more sources

Characterization of a Fracture-Controlled Enhanced Geothermal System (EGS) in the Trans-Mexican-Volcanic-Belt (TMVB): Predictive Mechanical Model for Fracture Stimulation in an Enhanced Geothermal System Context (EGS)

open access: yes, 2020
In 2020, as the world Energy demand keeps on rising (International Energy Agency (IEA), 2019), and with the global climate warming a reality (The Organisation for Economic Co-operation and Development (OECD), 2020), reducing our societal impact on Earth ...
Lepillier, B.P. (author)
core   +4 more sources

Development of Enhanced Geothermal Systems (EGS) in Northern Alberta

open access: yes, 2015
In the province of Alberta a huge amount of energy is needed for diverse applications. Specifically, the demand for heat is limited to a few locations such as the oil sands operation regions and metropolitan areas.
Hofmann, Hannes
core   +3 more sources

Nitrous oxide as working fluid in enhanced geothermal systems (EGS)

open access: yes, 2019
La energía geotérmica es una fuente de energía renovable que se puede encontrar en abundancia en nuestro planeta. Solo una pequeña fracción de esta se convierte actualmente en energía eléctrica, aunque en los últimos años la capacidad geotérmica ...
Olasolo Alonso, Pablo [0009-0003-3389-7870]   +1 more
core   +4 more sources

Deep Learning Assisted Optimization Workflow for Enhanced Geothermal Systems (EGS)

open access: yes, 2023
The energy retrieval process in an Enhanced Geothermal System (EGS) depends on fracture networks to facilitate fluid movement, thereby enabling the extraction of heat from adjacent rocks matrix.
xu, zhen
core   +3 more sources

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

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

Geothermal Permeability Enhancement - Final Report [PDF]

open access: yes, 2009
The overall objective is to apply known permeability enhancement techniques to reduce the number of wells needed and demonstrate the applicability of the techniques to other undeveloped or under-developed fields.
Joe Beall   +3 more
core   +1 more source

Enhanced Geothermal Systems (EGS) Well Construction Technology Evaluation Report [PDF]

open access: yes, 2008
A synopsis of a report evaluating well construction technology for Enhanced Geothermal Systems (EGS) is presented. The assessment of well construction technology had two primary objectives: 1. Determining the ability of existing technologies to develop EGS wells. 2. Identifying critical well construction research lines and development technologies that
Yarom Polsky   +7 more
openaire   +3 more sources

The EGS Collab Project: An intermediate-scale field test to address enhanced geothermal system challenges

open access: yes, 2020
Three components are typically needed to extract geothermal energy from the subsurface: 1. hot rock, 2. a heat transfer fluid, and 3. flow pathways contacting the fluid and the rock.
Kneafsey Timothy
core   +1 more source

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