Results 31 to 40 of about 393 (179)

Research progress of fluid-granite interaction in CO2 based enhanced geothermal system

地质科技通报, 2021
Compared with water, CO2 has larger expansibility, lower viscosity and lower reaction degree with rock.As an enhanced geothermal system (EGS) seepage heat transfer fluid, CO2 has higher heat transfer efficiency than water.This paper summarizes the ...
Hui Xue, Biao Shu, Keping Chen, Wei Lu, Sen Zhang, Yongpeng Hu   +5 more
doaj   +1 more source

Study on Fluid Pressure in Tubing, Dynamic Stress in Reservoir, and Fracture Propagation Morphology During Variable‐Rate Hydraulic Fracturing

Energy Science &Engineering, EarlyView.
Variable‐rate hydraulic fracturing can induce unsteady flow in the tubing, thereby generating fluctuating fluid pressure near the bottom‐hole reservoir. Dynamic stress is generated in the reservoir under the action of fluctuating fluid pressure and propagates as stress waves.
Zhu Ge, Wang Chaojing, Li Weicheng
wiley   +1 more source

Coupling geothermal energy with geological carbon storage: A holistic review of enhanced geothermal systems using CO₂ as a working fluid

Next Energy
CO2-based enhanced geothermal system (CO2-EGS), also known as CO2 plume geothermal, has emerged as a promising avenue to address the growing global energy demand and mitigate global climate concerns by exploiting renewable energy from geothermal ...
Jemal Worku Fentaw, Elvin Hajiyev, Abdul Rehman Baig, Hossein Emadi   +3 more
doaj   +1 more source

Development status and suggestions of hot dry rock hydraulic fracturing for building geothermal reservoirs

地质科技通报, 2022
Energy is a powerful guarantee for the long-term stable development of the economy and society. At the same time, China has also entered a critical period of ecological civilization construction.
Jingyu Xie, Dan Wang, Ning Li, Zhenyu Wang, Guoqiang Fu, Xianpeng Jing, Yuanyuan Ming   +6 more
doaj   +1 more source

Fault‐Controlled Permeability: A Key Parameter in Geothermal Electricity Production Assessment

Terra Nova, EarlyView.
ABSTRACT Geothermal energy is central to the global green energy transition, but its development has long focused on regions with positive thermal anomalies. Through a semi‐quantitative global‐scale review and spatial analysis of 361 geothermal sites, we show that 56.2% of global geothermal electricity production occurs in regions with thermal ...
Vincent Roche, Gaétan Milesi
wiley   +1 more source

Repurposing of hydrocarbon wells for Enhanced Geothermal System (EGS) development [PDF]

Geothermics
The Groß Schönebeck research platform represents a case study for the reuse of the abandoned hydrocarbon well E GrSk 3/90. A detailed description of well selection criteria, subsurface conditions, and well modification procedures is presented as a workflow for the repurposing of hydrocarbon well as an injection well for an EGS development.
Lingkan Finna Christi, Ingo Sass, Ben Norden, Guido Blöcher, Günter Zimmermann, Hannes Hofmann   +5 more
openaire   +2 more sources

Magnitudes and Rates of Strength‐Drawdown Modulate Injection‐Induced Seismicity

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Accurately forecasting injection‐induced seismicity remains a major challenge that is critically important for energy production and storage as controlling mechanisms are complex and remain opaque. We clarify key processes by following time‐histories of bespoke parameters anticipated to control strength reduction (drawdown) through ...
Pengliang Yu, Matthew Roseboom, Ankur Mali, Jacques Rivière, Parisa Shokouhi, Chris Marone, Derek Elsworth   +6 more
wiley   +1 more source

Performance of Hybrid Single Well Enhanced Geothermal System and Solar Energy for Buildings Heating

Energies, 2020
The energy reserves in hot dry rock and hydrothermal systems are abundant in China, however, the developed resources are far below the potential estimates due to immature technology of enhanced geothermal system (EGS) and scattered resources of ...
Yujiang He, Xianbiao Bu
doaj   +1 more source

Volatile Conduits Beneath Vulcano Island (Italy) Revealed by High‐Resolution Nodal Local Earthquake Tomography During Volcanic Unrest

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Understanding shallow magmatic and hydrothermal systems at active volcanoes is essential for interpreting unrest and forecasting eruptions. We present the first high‐resolution three‐dimensional Vp $Vp$, Vs $Vs$, and Vp/Vs $Vp/Vs$ models of Vulcano Island, Aeolian Islands, Italy, derived from a dense nodal seismic network.
Iván Cabrera‐Pérez, Douglas Sami Stumpp, Sofía Castro, Michaïl Henry, Tullio Ricci, Alessandra Sciarra, Matteo Lupi   +6 more
wiley   +1 more source

Hydraulische Stimulationskonzepte zur Entwicklung von Enhanced Geothermal Systems (EGS) [PDF]

, 2014
System Erde ...
Zimmermann, G., Blöcher, G., Reinicke, A., Deon, F., Regenspurg, S., Yoon, J., Zang, A., Heidbach, O., Moeck, I., Huenges, E.   +9 more
openaire   +2 more sources