Results 21 to 30 of about 393 (179)

Heat transfer optimization of SCO2 porous flow based on Brinkman model

MATEC Web of Conferences, 2016
The purpose of this study is to obtain the optimal operating condition in order to find the maximum supercritical CO2 heat extraction in the enhanced geothermal system (EGS).
Lin David T.W., Hsieh Jui Ching, Shih Bo Yen   +2 more
doaj   +1 more source

Study of Characteristics of Fault Slip and Induced Seismicity during Hydraulic Fracturing in HDR Geothermal Exploitation in the Yishu Fault Zone in China

Geofluids, 2021
Hot dry rock (HDR) geothermal energy has become promising resources for relieving the energy crisis and global warming. The exploitation of HDR geothermal energy usually needs an enhanced geothermal system (EGS) with artificial fracture networks by ...
Zhiyong Niu, Shiquan Wang, Hongrui Ma, Hengjie Luan, Zhouyuyan Ding   +4 more
doaj   +1 more source

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

, 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, Steve Knudsen, David Raymond, Michael Huh, A.J. (Chip) Mansure, John Finger, Robert Swanson, Louis Capuano Jr.   +7 more
openaire   +3 more sources

Enhanced Geothermal Systems (EGS) R&D Program, Status Report: Foreign Research on Enhanced Geothermal Systems [PDF]

, 2000
This report reviews enhanced geothermal systems (EGS) research outside the United States. The term ''enhanced geothermal systems'' refers to the use of advanced technology to extract heat energy from underground in areas with higher than average heat flow but where the natural permeability or fluid content is limited.
McLarty, Lynn, Entingh, Daniel
openaire   +2 more sources

Carbon sequestration potential of the Habanero reservoir when carbon dioxide is used as the heat exchange fluid

Journal of Rock Mechanics and Geotechnical Engineering, 2016
The use of sequestered carbon dioxide (CO2) as the heat exchange fluid in enhanced geothermal system (EGS) has significant potential to increase their productivity, contribute further to reducing carbon emissions and increase the economic viability of ...
Chaoshui Xu, Peter Dowd, Qi Li
doaj   +1 more source

Modeling proppant transport and settling in a 3D propagating fracture

Deep Underground Science and Engineering, EarlyView.
A versatile multiphysics tool is presented for simulating the complex processes involved in hydraulic fracturing treatments. The model couples fracture opening and propagation, variable‐density slurry flow, and proppant particle transport within the multiphysics object‐oriented simulation environment framework, based on two‐phase mixture equations and ...
Robert Egert, Aimé Fournier, Wencheng Jin   +2 more
wiley   +1 more source

Enhanced Geothermal Systems (EGS) R&D Program: Monitoring EGS-Related Research [PDF]

, 2000
This report reviews technologies that could be applicable to Enhanced Geothermal Systems development. EGS covers the spectrum of geothermal resources from hydrothermal to hot dry rock. We monitored recent and ongoing research, as reported in the technical literature, that would be useful in expanding current and future geothermal fields. The literature
McLarty, Lynn, Entingh, Daniel, Carwile, Clifton   +2 more
openaire   +2 more sources

Enhanced Geothermal Systems – Promises and Challenges

International Journal of Renewable Energy Development, 2022
Geothermal energy plays a very important role in the energy basket of the world. However, understanding the geothermal hotspots and exploiting the same from deep reservoirs, by using advanced drilling technologies, is a key challenge.
Anirbid Sircar, Krishna Solanki, Namrata Bist, Kriti Yadav   +3 more
doaj   +1 more source

Modeling and monitoring injectivity evolution during cold CO2 injection with field evidence from aquistore carbon capture and storage operations

Deep Underground Science and Engineering, EarlyView.
This work integrates 5 years of field data from the Aquistore CCS project with a non‐isothermal THM modeling framework to explain how cold CO2 injection alters injectivity over time. The study shows that sustained cooling near the wellbore reduces effective stresses, promotes tensile micro‑cracking, and leads to semi‑reversible permeability enhancement
Alireza Rangriz Shokri, Stephen Talman, Erik Nickel, Rick Chalaturnyk   +3 more
wiley   +1 more source

Reusing depleted oil and gas wells for geothermal energy: Feasibility, challenges, and a decision‐making framework for sustainable conversion

Deep Underground Science and Engineering, EarlyView.
The graphical abstract presents a structured decision‐support framework for assessing the feasibility of converting depleted oil and gas wells into geothermal energy systems. The left panel illustrates a comprehensive, multi‐stage decision‐making framework progressing from prefeasibility screening and technical–economic analysis to policy alignment ...
Karolina Bieryt, Yu Pan, Heinz Konietzky, Fei Wang   +3 more
wiley   +1 more source