Construction and Building Materials, Год журнала: 2025, Номер 474, С. 141086 - 141086
Опубликована: Апрель 7, 2025
Язык: Английский
Mining, Год журнала: 2025, Номер 5(1), С. 9 - 9
Опубликована: Янв. 22, 2025
With the issue of energy shortages becoming increasingly serious, need to shift sustainable and clean sources has become urgent. However, due intermittent nature most renewable sources, developing underground hydrogen storage (UHS) systems as backup solutions offers a promising solution. The thick regionally extensive salt deposits in Unit B Southern Ontario, Canada, have demonstrated significant potential for supporting such systems. Based on stratigraphy statistics unit B, this study investigates feasibility stability caverns, focusing effects cavern shape, geometric parameters, operating pressures. Three shapes—cylindrical, cone-shaped, ellipsoid-shaped—were analyzed using numerical simulations. Results indicate that cylindrical caverns with diameter-to-height ratio 1.5 provide best balance between capacity structural stability, while ellipsoid-shaped offer reduced stress concentration but less space, posing practical challenges during leaching. results also optimal pressure range maintaining minimizing leakage lies 0.4 0.7 times vertical situ stress. Higher pressures increase lead greater stress, displacements, risks, lower leads internal extrusion tendency walls. Additionally, rate drops maximum working pressure, yet total mass keeps growing trend.
Язык: Английский
Процитировано
1
Journal of Energy Storage, Год журнала: 2025, Номер 116, С. 116028 - 116028
Опубликована: Март 3, 2025
Язык: Английский
Процитировано
1
Journal of Energy Storage, Год журнала: 2024, Номер 102, С. 114100 - 114100
Опубликована: Окт. 11, 2024
Язык: Английский
Процитировано
6
Water, Год журнала: 2024, Номер 16(12), С. 1723 - 1723
Опубликована: Июнь 17, 2024
Water-soluble mining was invariably associated with surface subsidence, which in some cases escalated to the movement, deformation, and even collapse of overlying rock layers, triggering grave subsidence calamities. The caprock salt-bearing strata Longgui salt area closely adjacent third aquifer, mainly consisted fractured, porous, high-permeability materials such as mudstone conglomerates, rendering geological conditions highly complex. Years water-soluble had led significant area, a trend toward accelerated subsidence. In this study, were analyzed, through simulated experiments pillar dissolution mining, mechanisms examined. Over time, gradually perforated pillars caprock, ceasing support ultimately transforming small cavities into large single cavity. Utilizing data, research employed numerical simulation inverse predict patterns from 2019 2025, revealing that maximum reached 1367.6 mm I 1879.5 II, rates 12.05 mm/y 44.78 mm/y, respectively. Moreover, impact ground on construction subways assessed by establishing monitoring points evaluating along subway cross-sections longitudinal directions. findings provided valuable insights for guiding prevention control calamities mine similar areas Guangzhou, China.
Язык: Английский
Процитировано
5
Mining, Год журнала: 2024, Номер 4(3), С. 530 - 545
Опубликована: Июль 26, 2024
Underground hydrogen storage (UHS) is considered to solve the intermittency problem of renewable energy. A geological assessment indicated that B unit Salina Group in Southern Ontario, Canada, most promising for UHS because it thickest and regionally extensive salt rock deposit. However, comprehensive knowledge potential sites overall volume remains undiscovered. This paper collected 1112 wells’ logging data assess geologic Lambton County. The characteristic analysis was conducted using high-frequency stratigraphic sequences interpretation. internal lithologies thicknesses were interpreted from 426 available wells. capacity caverns calculated simplified cylinder models. results indicate can be subdivided into three sequences, denoted as SQ1, SQ2, SQ3 subunits. SQ1 corresponds salt–limestone, SQ2 bedded rocks, massive rocks. Well sections thickness maps study area divided two sub-areas along Wilikesport, Oil Spring, Watford line. To northwest, thicker deeper terms paleo-water depth, southeast, less deposited on paleo-highs. main range 20 30 m, 25 35 40 respectively. In conclusion, best subunit SQ3, with a secondary target being SQ2. factor impacting cavern high mud content, while meters-thick anhydrite developed towards base unit. underground 9.10 × 106 m3. At standard state, working gas 557.80 favorable western part surrounded by Wallaceburg, Watford. distribution combined result paleo-topography, sea-level changes, tectonic movement Lambton. exhibits significant potential.
Язык: Английский
Процитировано
3
Processes, Год журнала: 2024, Номер 12(8), С. 1709 - 1709
Опубликована: Авг. 14, 2024
Salt cavern storage, characterized by its safety, stability, large scale, economic viability, and efficiency, stands out as a cost-effective relatively secure method for large-scale petroleum reserves. This paper provides an overview of the current development status salt storage technologies both domestically internationally, analyzes advantageous conditions numerous challenges faced Strategic Petroleum Reserve (SPR) in China, forecasts trends this technology. The conclusions indicate that China possesses all necessary storage. Moreover, utilizing Analytical Hierarchy Process (AHP), macro suitability hierarchical evaluation system is constructed site selection construction facilities. quantifies various indicators, integrating expert opinions findings from relevant theoretical research to establish grading standards indices construction. Applied at Jintan Mine Jiangsu, results high construction, making it ideal location establishing such are consistent with opinions, demonstrating rationality method.
Язык: Английский
Процитировано
3
International Journal of Hydrogen Energy, Год журнала: 2024, Номер 94, С. 1389 - 1405
Опубликована: Ноя. 18, 2024
Язык: Английский
Процитировано
3
Energies, Год журнала: 2025, Номер 18(1), С. 215 - 215
Опубликована: Янв. 6, 2025
In the current global energy sector where storage technology is highly regarded, development of crucial. Utilizing specific underground space for oil and gas other sources direction future development, formed by deep-salt-mine water dissolution extraction has gradually become preferred choice. However, in actual operation, multi-layer salt cavities are prone to collapse interlayer bending pipes, seriously affecting progress, quality, safety entire construction. Therefore, based on relevant principles, a targeted experimental platform was established, taking photos measurements falling process objects, simulating situation objects spaces their impact related components. In-depth research conducted probability hitting inner pipe horizontal force under different conditions, results were verified rigorous numerical simulation analysis. The show that impacts can cause components bend, with maximum reaching 5.1% 24.6 N. addition, hydraulic fluctuations caused suction drainage cavity column have relatively small object trajectory. findings provide practical effective guidance safe construction facilities, ensuring be carried out safely efficiently, contribute steady industry as whole.
Язык: Английский
Процитировано
0
Journal of Rock Mechanics and Geotechnical Engineering, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Processes, Год журнала: 2025, Номер 13(2), С. 301 - 301
Опубликована: Янв. 22, 2025
Salt formations are commonly encountered during oil and gas drilling. Due to the rheological properties of salt rocks, casing collapse accidents happen frequently. Under action nonuniform geostress, failure has become an important influencing factor that restricts exploration development benefits deep ultra-deep wells. Casing stress in a period after well cementation formation Brazilian deepwater fields was analyzed. Results show geostress is instantaneously applied on cement sheath when completed then transferred casing. Stress inner wall grows with increase angle direction maximum horizontal principal it reaches minimum stress. As creep continues, casings gradually enlarges circumferential rings tends be uniform, which means weakens nonuniformity deformation. The pressure outer at first decrease as enlarges. reduces increasing thickness selected, strength improved increases. research results provide certain theoretical guidance for check engineering formations.
Язык: Английский
Процитировано
0