11:00 AM - 1:00 PM
[HSC06-P06] Construction of Workflow from Subsurface Evaluation to Monitoring related to CCS Operation, and Technical Issues on Each Geoscientific Analysis in the Workflow
Keywords:CCS/CCUS, HR3D Seismic, 3D Geological Model, CO2 Simulation, Monitoring
Regarding the storage site survey, the technical viewpoints of understanding the subsurface information such as the storage capacity of the target area and the social economic viewpoints such as the distance from the CO2 emission source are the important factors to be examined. The government and research institutes have been conducting continuous surveys of suitable storage sites in Japan and the surrounding sea areas. In addition, a wide range of underlying technologies related to CCS development programs has also been implemented by research institutes and private companies for recent years.
In this presentation, geological/geophysical underlying technologies consisting of seismic data acquisition/processing/analysis, depth structural analysis, property evaluation of reservoir/seal, geological modeling, storage capacity and CO2 flow simulation are well organized using the publications and the knowledge from existing overseas CCS projects. We will also introduce a one-stop workflow package for the overall analysis and evaluation related to CCS project, and will exhibit the importance of each underlying technology, the current technical level, and the technical issues to be solved in the near future.
At the same time, we will give an overview of the monitoring required after the start of CO2 injection and storage, and review the technologies related to time-lapse 3D seismic data acquisition used for the prediction of CO2 plume expansion, pressure monitoring in observation wells and ground surface monitoring such as CO2 leakage and surface displacement as an environmental assessment.
Finally, toward the realization of the precise quantification of CO2 emissions and reductions in CO2 emission source units, we will summarize the current technologies for the direct measurement of greenhouse gas concentrations in the air (bottom-up measurement) and gas detection and monitoring using satellite data (top-down measurement).