Results 91 to 100 of about 13,910,161 (281)

A Fractal Gas-Water Relative Permeability Model in Geothermal Reservoirs

open access: yes, 2019
Reliable gas-water relative permeability models are of significance for accurate numerical simulation for both petroleum and geothermal reservoirs. In this study, a modified Hagen-Poiseuille equation for gas/water flow was proposed based on the shell ...
Archer, Rosalind, Yu, Pengliang
core  

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu   +8 more
wiley   +1 more source

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

open access: yesDeep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Geothermal chemical characteristics and genetic model of the Qingshankou Formation in the Daqingzijing area, southern Songliao Basin

open access: yes地质科技通报
Objective With high reservoir temperature, good lithology and high water content, the Qingshankou Formation is the best geothermal reservoir of Daqingzijing area, the saddle of the Changling Depression.
Xianli DU   +8 more
doaj   +1 more source

Thermal‐induced fracture evolution and acoustic signature of Beishan granite: Insights into tensile strength of barrier system for high‐level radioactive waste disposal

open access: yesDeep Underground Science and Engineering, EarlyView.
The tensile strength of granite, a proposed host for nuclear waste, degrades severely above 400°C. We link this to specific microcracking patterns captured by acoustic emission, establishing a scientific basis for assessing repository safety under thermal load.
Wei Zeng   +7 more
wiley   +1 more source

Discussion on Lithium Resources of High Temperature Geothermal Water in Southern Xizang and its Technical and Economic Efficiency of Extraction and Utilization

open access: yesKuangchan zonghe liyong
This is an article in the field of earth sciences. According to insufficient research on the distribution characteristics, genetic mechanism, lithium extraction technology, and economic benefits of high-temperature geothermal water lithium resources in ...
Zongying ZHOU, Lu LUO, Di JIN
doaj   +1 more source

Advances in vital‐sign prediction and early‐warning models for underground coal mine workers integrating environmental factors

open access: yesDeep Underground Science and Engineering, EarlyView.
This review synthesizes advances in predicting miners' vital signs by integrating environmental monitoring (dust, temperature, and gas) with physiological data. It highlights multi‐source data fusion techniques and early‐warning models for enhanced occupational safety in underground coal mines.
Junji Zhu   +4 more
wiley   +1 more source

Temperature Estimation of Geothermal Systems and Subsurface Model Based on Geochemical of Lake Ranau

open access: yesScience and Technology Indonesia
The geothermal potential of the Lake Ranau area comes from the remnants of magmatic activity from Mount Seminung. Geothermal manifestations in this area are in the form of hot springs that are thought to emerge through geological structures.
Mochammad Malik Ibrahim   +2 more
doaj   +1 more source

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