Results 31 to 40 of about 435,541 (193)

Chemical interactions of a geothermal battery in the Malm reservoir of Munich

Geothermal Energy
The Malm reservoir in the South German Molasse Basin, characterized by its highly heterogeneous karstified carbonate structure, offers significant potential for geothermal energy production and seasonal heat storage.
Thorsten Hörbrand, Fabian Nitschke, Kai Zosseder, Thomas Kohl   +3 more
doaj   +1 more source

Hydrogeochemical characteristics of Ordovician karst water in North China coalfield and its indicative significance for geothermal energy

Meitan xuebao, 2023
Ordovician karst water in the North China coalfield is a green energy source that integrates water and heat. Therefore, it is of great significance for the exploration and development of geothermal resources to clarify the formation and evolution ...
Jie ZHANG, Luwang CHEN, Xiaowei HOU, Miao ZHANG, Yongsheng HU   +4 more
doaj   +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

Deep 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

Risk of surface movements and reservoir deformation for high-temperature aquifer thermal energy storage (HT-ATES)

Geothermal Energy
High-temperature aquifer thermal energy storage (HT-ATES) systems are designed for seasonal storage of large amounts of thermal energy to meet the demand of industrial processes or district heating systems at high temperatures (> 100 °C).
Kai Stricker, Robert Egert, Eva Schill, Thomas Kohl   +3 more
doaj   +1 more source

Impact of reservoir characteristics on the well spacing of sandstone geothermal reservoir: A case study of Jiyang Depression

Shuiwen dizhi gongcheng dizhi
The reinjection exploitation of hydrothermal resources is a recognized method of sustainable exploitation. The well space between the production and reinjection well is an essential issue because the thermal breakthrough in production well is the main ...
Yifan FAN, Zhongfeng DUAN, Yonghong YANG, Likun YIN, Liming YANG, Ziwei WANG, Hongmei YIN   +6 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

Deep 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, Shijie Li, Xiaozhao Li, Zhen Huang, Shangtong Yang, Wentao Xu, Biao Wang, Yun Wu   +7 more
wiley   +1 more source

Hawaiian program for the confirmation and stimulation of geothermal resources development [PDF]

, 1988
The Hawaii Natural Energy Institute of the University of Hawaii at Manoa has planned and is currently implementing a program designed to confirm and stimulate geothermal resources development in Hawaii.
Olson, Harry J.
core   +2 more sources

Temperature stability and enhanced transport properties by surface modifications of silica nanoparticle tracers for geo-reservoir exploration

Scientific Reports
Tracer tests are an important tool for characterizing and monitoring subsurface reservoir properties. However, they are limited both because of the tracer molecules constraining factors such as irreversible adsorption, retention, and degradations, i.e ...
Laura Spitzmüller, Jonathan Berson, Thomas Schimmel, Thomas Kohl, Fabian Nitschke   +4 more
doaj   +1 more source

3D geological modeling of mine karst geothermal reservoir and geothermal resources evaluation

Meitan xuebao
The traditional geothermal reservoir volume method is suitable for the evaluation of geothermal resources in large-scale regions, but there is a significant error when it is used for the evaluation of mine geothermal resources.
Yuan ZHANG, Zhijun WAN, Songbo HU, Zhuting WANG, Bo ZHANG, Dong ZHAO   +5 more
doaj   +1 more source

Fluid‐induced slip on a rate‐and‐state fault during co‐ and post‐injection: The interplay of fluid pressure diffusion and poroelastic stress

Deep Underground Science and Engineering, EarlyView.
Fault slip can occur ahead of the injection pressure front due to poroelastic stress. Our model captures the interaction of pressure, stress, and friction, providing new insights into injection‐induced seismicity and post‐injection fault slip. Shut‐in operations can either mitigate or accelerate seismic events depending on fault conditions and ...
Qifeng Xie, Lei Wang, Qi Li
wiley   +1 more source