Results 71 to 80 of about 343 (176)

Research Progress on CO₂ as Geothermal Working Fluid: A Review

Energies
With the continuous increase in global greenhouse gas emissions, the impacts of climate change are becoming increasingly severe. In this context, geothermal energy has gained significant attention due to its numerous advantages. Alongside advancements in
Lianghan Cong, Shuaiyi Lu, Pan Jiang, Tianqi Zheng, Ziwang Yu, Xiaoshu Lü   +5 more
doaj   +1 more source

Investigation of Thermal Stress of Cement Sheath for Geothermal Wells during Fracturing

Energies, 2018
Geothermal energy development has increasingly been studied in recently decades because of its renewable and sustainable features. It can be divided into two categories: traditional geothermal (hydrothermal) systems and enhanced geothermal systems (EGS ...
Honglin Xu, Nian Peng, Tianshou Ma, Bin Yang   +3 more
doaj   +1 more source

Impacts of natural fracture geometries on heat production in enhanced geothermal systems: from 3D discrete fracture models to uncertainty analysis

Energy Conversion and Management: X
Fracture geometry is critical for Enhanced Geothermal Systems (EGS) performance. This study uses 3D ensemble simulations to investigate how natural fracture characteristics affect long-term heat production.
Tao Chen, Yu Zhang, Darius Mottaghy
doaj   +1 more source

Numerical simulation of multi-field coupling in geothermal reservoir heat extraction of enhanced geothermal systems

Journal of Petroleum Exploration and Production Technology
The coupled analysis of multi-field heat and mass transfer in geothermal reservoirs is a pivotal concern within the realm of geothermal rock exploitation. It holds significant implications for the assessment of thermal energy capacity and the formulation
Zhi Zeng, Weijun Shen, Mingcang Wang, Zhiyu Li, Xiangyang Wang, Jianghui Ding   +5 more
doaj   +1 more source

Data-Driven Visualization of the Dynamics of Geothermal Energy and Hot Dry Rock Research

Energies
Geothermal energy and hot dry rock (HDR), as an important clean energy technology, have garnered widespread attention globally in recent years. Enhanced Geothermal Systems (EGS), a technology for extracting energy from low-permeability Hot Dry Rock (HDR)
Xiangcheng Que, Shu Zhu, Bei Han
doaj   +1 more source

Experimental studies on reactive transport processes in Enhanced Geothermal Systems (EGS)

Reactive transport processes are crucial in various geological settings, driving rock alteration, ore deposit formation, CO2 sequestration and Enhanced Geothermal Systems (EGS). In EGS, these processes, triggered by chemical stimulation, result in dynamic changes in mineral composition and petrophysical properties.
Gina Rüdiger, Juliane Kummerow, Laurenz Schröer, Chandra Widyananda Winardhi, Veerle Cnudde, Timm John   +5 more
openaire   +3 more sources

Experimental Technique for Modeling Multi-Field Coupled Transport in Multi-Fracture Geothermal Reservoirs

Energies
In the operation of enhanced geothermal systems (EGSs), complex physical and chemical coupling processes, which are crucial for the efficient exploitation of geothermal energy, are involved.
Peng Xiao, Xiaonan Li, Yu Li, Bin Chen, Yudong Tang, Xiufeng Ge, Yan Qin, Hong Tian, Jun Zheng   +8 more
doaj   +1 more source

Numerical investigation of flow distribution and energy extraction in multi-fractured doublet Enhanced Geothermal Systems (EGS)

International Journal of Thermofluids
Enhanced Geothermal Systems (EGS) offer significant potential for sustainable, high-temperature energy extraction, yet their efficiency depends strongly on how fluid flow and heat transfer evolve within complex fracture networks.
M.J. Uddin, M.M. Rahman, Salah A. Faroughi   +2 more
doaj   +1 more source

To Bleed‐Off or Not to Bleed‐Off?

Geophysical Research Letters
Bleed‐off and shut‐in of injection have been implemented in different Enhanced Geothermal Systems (EGS) in an attempt to mitigate the induced seismicity at and after the injection stop.
Auregan Boyet, Silvia DeSimone, Víctor Vilarrasa   +2 more
doaj   +1 more source

Comparative investigation of the heat extraction performance of an enhanced geothermal system using H2, CO2, and H2O as working fluids

Energy Geoscience
The optimization of working fluids in single-well coaxial geothermal systems presents a critical pathway for advancing the use of enhanced geothermal systems (EGS) in renewable energy applications. This study evaluates the thermo-hydraulic performance of
Dandan Wang, Xiong Wu, Pu Zhao, Huiming Fang, Zhiwei Dang, Zhewei Shi, Chao Huo   +6 more
doaj   +1 more source