A5066483912- CO2 Sequestration and Geologic Interactions
- Hydraulic Fracturing and Reservoir Analysis
- Enhanced Oil Recovery Techniques
- Methane Hydrates and Related Phenomena
- Hydrocarbon exploration and reservoir analysis
- Optical Systems and Laser Technology
- Groundwater flow and contamination studies
- Carbon Dioxide Capture Technologies
- Reservoir Engineering and Simulation Methods
- Petroleum Processing and Analysis
- earthquake and tectonic studies
- Advanced Multi-Objective Optimization Algorithms
- Recycling and Waste Management Techniques
Korea Institute of Geoscience and Mineral Resources
2022-2025
Yonsei University Health System
2019-2022
Yonsei University
2022
Geological CO2 sequestration in basalt formations represents a promising approach to mitigate climate change through secure carbon dioxide storage via mineral carbonation. This study investigates dissolution, precipitation, and their influence on pore structure during batch experiments under controlled conditions (P: 8 MPa, T: 100 °C). The were conducted an autoclave system containing brine, where sample (2 cm width 9 height) was partially submerged mimic CO2-brine boundary...
Ex-situ mineral carbonation, utilizing industrial by-products or natural calcium- and magnesium-bearing rocks, presents a promising avenue for CO2 removal. Both calcium magnesium can form carbonates independently in conjunction. While is significant mineralization source, its presence negatively influence carbonate precipitation crystal stability when co-precipitated with CaCO3. This study investigates the effects of varying Mg2+/Ca2+ molar ratios on carbonation process under controlled...
Understanding the dynamics of immiscible fluid in a porous media is critical many chemical and environmental engineering processes. However, geological heterogeneity effect on multiphase flow behavior remains unclear. Here, displacement entrapment were experimentally demonstrated at pore-level using time-lapse synchrotron X-ray microtomography. A drainage-imbibition experiment was designed an unconsolidated layered sand pack that comprised coarse fine zones. There significant differences...
Abstract In geologic media, fluids exist in gas, liquid, and supercritical phases, generating multiphase multicomponent systems. As migrating through fractures reach the speed of sound, choked flow can be developed microfractures. To elucidate such flow, thermodynamic analysis numerical simulations were conducted with CO 2 , H O, ‐H O mixtures at various phases ranging from to gaseous liquid O. Compressible a relatively low sound (~225 m/s 31.1 °C 7.38 MPa), demonstrated significant changes...
Abstract CO 2 ‐driven cold‐water geysers periodically ejecting cold water are rare. Although coalescence and expansion of ascending bubbles can explain the eruption process, triggering conditions cycle remain unclear. To clarify conditions, hydrostatic pressure in well was decreased by pumping to induce eruptions. All four tests successfully induced eruptions decreasing ∼10 4 Pa. In absence artificial perturbations, similar reductions were observed during intervals between two consecutive...