Geological Investigation of CO2 Storage and Innovative Research for CO2 Monitoring Technology
GEOLOGICAL INVESTIGATION OF CO2 STORAGE AND INNOVATIVE RESEARCH FOR CO2 MONITORING TECHNOLOGY
KIGAM
Research activities have focused on 1) the development of in-situ CO2 monitoring technology with laboratory experiments as well as a small-scale test bed, 2) estimations of potential CO2 storage capacities for saline formations in the continental shelf area, 3) CO2 -water-rock interaction experiments and two-phase (CO2 and brine) flow visualization under various reservoir conditions, and 4) distributed acoustic sensing (DAS) development using fiber-optic cable for measurements of CO2 behaviors in subsurface environments. Recent results are summarized below.
- Estimation of the CO2 storage capacities of deep saline formations in the West Sea (Fig. 1) and of sub-basalt formations in the South Sea (Fig. 2)
- Development of a DOFS (distributed optical fiber sensing) seismic data acquisition system and directional vibration sensing technology (Fig. 3)
- Evaluation of the CO2 capillary trapping capacity for a highly heterogeneous storage formation (Fig. 4)
- Modelling and analysis of CO2 -water-rock interactions in basaltic tuff
