FAN , Jinyang

Since the salt cavern storage of natural gas and compressed air plays a critical role in ensuring the energy supply and adjusting the seasonal imbalance of power, China government has been constructing numerous new storages in recent years. Because of the seasonal of the seasonal variations of the gas/air pressure, the storages undergo cyclic...

International audience

Underground salt rock caverns are ideal for national strategic energy storage, compressed air energy storage, and CO2 storage. Operation periods of salt cavern storage can be affected by periodic injection of gases during production/charging and discharging activities, thus causing fatigue damage to surrounding rock. It is therefore necessary...

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The majority of experimental rock fatigue tests have been conducted with the continuous cyclic loading path. In this paper we report the results from the fatigue tests of salt with discontinues cyclic loading path containing zero loading stress intervals (ZLIs) of different duration. We show that the application of such intervals strongly...

China's current energy consumption is primarily fueled by coal, increasing coal mining with growing energy demand. Coal and gas outburst accidents are common problems in coal mining, and prediction methods are fundamental for preventing such accidents. The gas emission characteristics of boreholes are a combination of comprehensive coal...

Salt rock is a sedimentary rock that is widely distributed in the crust. Since salt rock has a low permeability, rheological behavior, and self-healing characteristics, it has been extensively exploited for subsurface energy storage and waste disposal. The construction of compressed air energy storage (CAES) facilities using salt caverns for...

The use of salt caverns to construct the compressed air energy storage (CAES) plants is an important development for the reuse of abandoned mines in response to the Chinese national green mining strategy and is a significant means to accomplish global carbon neutrality. The study of the mechanical behavior of rock salts is the base for ensuring...

Fracture process is investigated using finite-difference simulations with a new constitutive model. It is shown that both geometry and fracture mechanism itself depend on the preexisting heterogeneities that are stress concentrators. In the brittle regime (low pressure, P), Mode-I fractures propagate normal to the least stress σ3 from the...

Abstract The importance of secondary endosymbionts on the resistance to parasitoids is increasingly recognized. Compared with Hamiltonella defensa, our understanding of the role of Regiella insecticola in protecting hosts against parasitic wasps is not well documented. In this study, we conducted experiments to determine whether R. insecticola...

International audience

During the operation of an underground salt cavern gas storage, Fatigue failure occurs in the surrounding rock of gas storage reservoirs under non-continuous gas injection and extraction loading. Due to the special layered salt rock structure in China, the mudstone interlayer is the weak part of the gas storage. It is necessary to study the...

In this paper, the numerical calculation model of salt cavern hydrogen storage was established based on the proposed salt cavern hydrogen storage in a bedded salt mine in Jiangsu Province of China. The effects of the minimum internal pressure, maximum internal pressure, average internal pressure and injection-production rate on the stability...