Clay minerals and hydrogen: Insights into reactivity, pore structure, and chemical stability

Fuel, Год журнала: 2025, Номер 389, С. 134615 - 134615

Опубликована: Фев. 9, 2025

Язык: Английский

---

Applicability of the Vertical Equilibrium model to underground hydrogen injection and withdrawal

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 106, С. 790 - 805

Опубликована: Фев. 6, 2025

Язык: Английский

---

Petrophysical Impacts of CO₂ as Cushion Gas in Subsurface Hydrogen Storage

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Март 28, 2025

Язык: Английский

---

Repurposing depleted unconventional reservoirs for hydrogen storage: Challenges and opportunities

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 99, С. 53 - 68

Опубликована: Дек. 14, 2024

Язык: Английский

---

Influence of Carbonated Water on CO₂ Residual Trapping in Berea Sandstones

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Янв. 21, 2025

The storage of captured CO2 in deep geological formations has been the most commonly used practice industry for disposal anthropogenic gas from atmosphere. formation into which is stored a wetting phase, can be either water saline aquifers or oil case depleted reservoirs. Previous studies have explored alteration wettability that occurs as result interaction with sandstone rock surfaces over short duration exposure time. This study, however, aims to understand effect prolonged Berea rocks on and reservoirs during sequestration. In this work, carbonated brine consisting 3 wt % NaCl was formulated exposed samples quartz content >97% different wettabilities (water-wet oil-wet samples). were made by treating geologically similar solution 2 oleic acid ethanol. water-wet 30 days at 75 °C 1800 psi. Capillary pressure curves generated using porous plate method investigate evolution both prior after brine. results aging study revealed make surface hydrophilic due acidic removing organic materials surface. also showed became more (by up 66%) compared (59%). increase behavior thus leads higher residual trapping. concluded trapping influenced continuous scCO2

Язык: Английский

---

Viscous-Dominated Flow Experiments for Hydrogen Storage in Saline Aquifers

SPE Western Regional Meeting, Год журнала: 2025, Номер unknown

Опубликована: Апрель 25, 2025

Abstract A multi-phase flow experimental setup is introduced to examine the behavior of H2 transport in a brine-saturated core under different rates and regimes context underground hydrogen storage (UHS). Analog fluids decane viscosified brine were used lieu obtain viscosity ratio similar H2-brine at reservoir conditions. normalized finger width was allow for comparison widths between this analog system system. X-ray computed tomography (CT) image during injection compute average saturation across sample, as well measure fingers that formed experiments. The 1D profile fast-flowing experiment showed initially stable displacement before onset viscous fingering, slow-flowing presence distinct from injection, limits imaging. resulting images tests confirm fingering present both tests, but limitations equipment capability suggest there exists minimum can be observed with current setup. This necessitates additional determine evolution fingers, observable.

Язык: Английский

---

Geomechanical integrity and geochemical reactions of shale caprocks for hydrogen storage: A comprehensive review

Fuel, Год журнала: 2025, Номер 400, С. 135728 - 135728

Опубликована: Май 21, 2025

Язык: Английский

---

Wettability of hydrogen-rock-brine systems: Parametric analysis and knowledge gaps

Fuel, Год журнала: 2025, Номер 401, С. 135821 - 135821

Опубликована: Июнь 2, 2025

Язык: Английский

---

Multiscale Mechanisms of Foam Injection for Enhanced Underground Hydrogen Storage: Experimental and Simulation Insights from Pore to Reservoir Scale

Energy, Год журнала: 2025, Номер unknown, С. 136935 - 136935

Опубликована: Июнь 1, 2025

Язык: Английский

---

Evaluating CO₂ Residuals in Water Aquifers and Depleted Oil Reservoirs via X-ray Core-Flooding Experiments

Energy & Fuels, Год журнала: 2024, Номер 38(18), С. 17761 - 17769

Опубликована: Авг. 27, 2024

The success of carbon dioxide storage depends on the security stored gas from leakage to surface. This is ensured when there an interaction between CO2 with formation water and surrounding rock trap it in other forms. into which has a wetting phase, can either be water-wet for saline aquifer or oil-wet case depleted oil reservoir. Therefore, this study aims enhance understanding flow behavior Berea sandstone rocks determine role that fluids solid plays wettability during storage. In work, series core-flooding experiments were performed core samples quartz content >90%. nature sample was altered by treating 2 wt % oleic acid mimic X-ray scanning technique applied detect saturation residual after experiments. results revealed higher trapping (43.2%) due high adsorption organic concluded not only dependent snap-off effect but also greatly advantaged surface chemistry interacting CO2.

Язык: Английский

---