Underground gas storage (UGS) is an important part of the natural industry. Its peaking characteristics and capacity are critical to national energy supply security. Compared with mature market in Europe, construction UGSs China faces many challenges. This study expected provide references for UGS through a detailed analysis calculations European underground storage. First, current status devel...

The use of hydrogen as an energy source is advantageous because its combustion processes only produce water vapor, but not carbon dioxide. This excess can be stored in underground gas storage facilities, where it delivered mixed with natural gas. In gas- and oil industry the formation hydrate crystals cause significant damages. A huge amount crystal formed, plugs pipeline. Like gas, occurs case...

Underground hydrogen storage (UHS) in geological formations is a promising technology for large-scale energy storage. In this study we focus on UHS saline aquifers. Although lessons were learned from similar studies, including carbon sequestration and underground gas storage, the unique thermodynamic physical properties of distinguish other subsurface projects. We developed two-phase, three-com...

In order to improve the availability of solar energy, this paper introduces a new solar energy storage device and its parameters automatic measuring system. The device puts the heat which was gathered by synchronous tracking solar collector into underground concrete storage pile. Meanwhile, the system could simultaneously measure the temperature, pressure and flow of the device, etc. Some deriv...

in this research, gasoline vapours including benzene, toluene, xylene (btx) and total volatile organic compounds (tvocs) emitted from vent pipes of underground storage tanks (usts) were measured at six gas stations in tehran. thereafter, gas station no. 29 was selected as a pilot station and equipped with a vapour control system. the vapours were measured during the summer of 2013 and winter of...

The false legend of carbon dioxide traps resulting from the weight of carbon dioxide gas is disproved. In spite of water-vapor lightness in comparison with air, no water-vapor trap exists on cave ceilings. In fact, underground atmospheres with specific compositions are not related to gravity, but to the absence of any air movement around the gas sources. The process of double diffusion of oxyge...

The KLOTZ Club is a multi-national group of explosives safety specialists concerned with the safe storage of military ammunition and munitions. One topic of present interest to the KLOTZ Club is the effects of the hazardous environment that would result from an accidental explosion in an underground military munitions storage facility. The necessary placement and/or design of nearby above-groun...

Accurately predicting the critical differential pressure (CDP) of sand production contributes to improving peak-shaving capacity and ensuring safe operation underground gas storage (UGS). The CDP sanding in target wells UGS was predicted coupling laboratory tests, inversed analysis with well logging data numerical simulations. in-situ mechanical properties rock were estimated by test results we...