3:00 PM - 3:15 PM
[HRE28-16] On the Passive Geophysical Monitoring Research for CO2 Geological Storage at AIST
Keywords:CO2 Geological Storage, monitoring, gravity, self-potential, passive seismic
However, relatively high cost of time-lapse seismic requires some another monitoring choice, especially for sub-seabed storage typical in Japan. AIST have studied passive geophysical monitoring method to reduce the repetition of the seismic sounding, especially in post-injection period.
In order to investigate the feasibility of passive geophysical monitoring methods for CO2 geoloical storage, we carried out reservoir simulations of CO2 geological storage, and calculated the temporal changes in geophysical observables caused by subsurface changes due to CO2 injection. We also carried out high-resolution gravity, self-potential and AE(passive seismic) monitoring in Farnsworth test site in USA, where large-scale field testing injecting of CO2 is carried out by the Southwest Partnership on Carbon Sequestration (SWP). From 2014, we started baseline monitoring of gravity and SP in Tomakomai, where the first demonstration test will be planed from FY2016.
This research is funded and supported by Ministry of Economy, Trade and Industry (METI). Funding for the Farnsworth project is provided by the U.S. Department of Energy's (DOE) National Energy Technology Laboratory (NETL) through the Southwest Partnership on Carbon Sequestration (SWP) under Award No. DE-FC26-05NT42591. He authors also thanks to Chaparral Energy, University of Utah, New Mexico Institute of Mining and Technology, Japan CCS, Tomakomai city for their support for our monitoring.