Assessing the Geochemical and Petrophysical Properties of Onshore Basalts in Malaysia: Potential Study for CO2 Sequestration

Summary CCUS is an effective and enhanced approach for mitigating greenhouse gas emissions produced from CO2. Carbon storage in geological formations holds great potential through various storage options such as Deep saline aquifers, Depleted Reservoir Fields, Deep Coal Seams, and unconventional shale formations. Recent studies from the pilot projects of Carbfix, Iceland, and Wallula Project, USA have demonstrated the viability of CO2 sequestration in the Mafic and Ultramafic Rock formations such as Basalts by the CO2 Mineralization process. CO2 sequestration in the Mafic and Ultramafic rock formations can be employed through chemical trapping methods such as Solubility and Mineral Trapping in the subsurface rock formations with minimal leakage risks, unlike other geological formations available for Carbon storage. This study approach holds greater scope for CO2 Sequestration due to the wide exposure of these rock formations around the world. The present study focuses on the impact and role of Mineralization and reaction kinetics through rapid geochemical and geo-mechanical experiments. Further, Upscaling this CO2 Sequestration study from pore-scale laboratory experiments to large-scale Pilot Projects in the future can enhance the viable scope and potential option for CO2 sequestration in the Igneous Mafic and Ultramafic rock formations as a long-term Stability.