2010 Kyushu University P&P Project
Project on Ito Natural Analogue for CO2 Storage, Project INAS
Principal Investigator@Kyuro Sasaki (Department of Earth Resources Eng., Faculty of Engineering)
@Safety and environmental assessments during and after CO2 injection are important for geological CO2 storage. It is required to set up safety guideline and to evaluate long-term environmental changes. Study on environmental changes between past and present geological phenomena is also essential for geological storage. However, direct measurements during long-term changes are difficult, because the diffusion and dispersion rates of CO2 are expected to be small rate and the evaluation period is sometimes needed more than 1,000 years. One of possible answers for this problem is an approache by a natural-analogue study that carries measurements at relatively shallow sediments.
A natural-analogue study on the CO2 dispersion and diffusion characteristics in the shallow sediments can be measured by gas concentration measuremeents on the surface. The measurements data are very usuful to build up a numerical model for CO2 effective diffusion from deep sediments to the surface.
Left: Schematic Figure, Right: Drilling @ Test Field,ITO Campus, Kyushu University
Location and Well Design
Surveys of the CO2 diffusion and dispersion
Surveys of the CO2 content in soil gas and CO2 flux emissions from the surface are carried out with carbon isotope ratio measurements to understand fluctures in the strata, and to build a numerical model for environmental assessments and safety control.
Field at Present
Department of Earth Resources Engineering, Kyushu University
Address: 744 Motooka, Nishi-ku,Fukuoka 819-0395 Japan
Tel. & Fax.: 092-802-3326(Domestic)
Department of Earth Resources EngineeringLink to Web
Faculty of Engineering, Kyushu University Link to Web