Japan Geoscience Union Meeting 2015

Presentation information


Symbol H (Human Geosciences) » H-RE Resource and Engineering Geology

[H-RE28] CCUS (Carbon Dioxide Capture, Utilization, and Storage) for Climate Mitigation

Mon. May 25, 2015 2:15 PM - 4:00 PM 105 (1F)

Convener:*Tomochika Tokunaga(Department of Environment Systems, University of Tokyo), Ziqiu Xue(Research Institute of Innovative Tech for the Earth), Masao Sorai(Institute for Geo-Resources and Environment, National Institute of Advanced Industrial Science and Technology), Chair:Ziqiu Xue(Research Institute of Innovative Tech for the Earth)

3:00 PM - 3:15 PM

[HRE28-16] On the Passive Geophysical Monitoring Research for CO2 Geological Storage at AIST

*Yuji NISHI1, Mituhiko SUGIHARA1, Tsuneo ISHIDO1, Nobukazu SOMA1 (1.AIST)

Keywords:CO2 Geological Storage, monitoring, gravity, self-potential, passive seismic

An appropriate monitoring program is indispensable for an individual geological carbon sequestration project to detecting subsurface changes within the reservoir, to provide for potential risk such as CO2 leakage through the caprock, and to improve the predictive capability of reservoir simulation. Time-lapse seismic method is mainly used to monitor subsurface CO2 plume and have demonstrated its capability to detect temporal and spacial changes of CO2 plume in many geological storage site as Sleipner.
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.