Tomakomai demonstration injects 300k tonnes of CO2

Nov 25 2019

Japan CCS Company has achieved its target of 300,000 tonnes of CO2 injection at the Tomakomai CCS Demonstration Project.

JCCS was selected as the contractor to operate the public tender "Demonstration of CO2 Reduction Technologies (FY2012)" held by the Ministry of Economy, Trade and Industry of Japan (METI), and under the national policy aiming towards the practical use of CCS technology by around 2020 commenced a demonstration project in Tomakomai.

JCCS has conducted the project to capture high purity CO2 from CO2 containing gas emitted by a hydrogen production unit of a refinery - the CO2 source, and the facilities to inject CO2 underground were designed and constructed. Also, the conversion of an existing survey well into an observation well, and the drilling of 2 observation wells and 2 injection wells was completed.

At the same time, in order to verify that CO2 injection into the reservoir will not affect the surrounding environment, a monitoring system to record formation and earthquake data was established, and baseline data prior to injection was obtained. Also, as the reservoir for CO2 storage was to be in the sub-seabed, a baseline survey of seawater and marine organisms was conducted in accordance with the Act for the Prevention of Marine Pollution and Maritime Disasters.

From April 2016, targeting annual injection of 100,000 tonnes, CO2 has been injected into a formation 1,000m sub-seabed in the harbor area of Tomakomai Port, as well as experimental injection into a formation 2,400m under the seabed. On November 22, 2019, cumulative CO2 injection reached the target of 300,000 tonnes.

Accordingly, injection has been suspended, whereas monitoring operations will be continued. Monitoring will be conducted in order to determine the behavior (movement, distribution) of the injected CO2, and micro-seismicity and natural earthquakes will be observed on a 24-hour basis, and marine environmental surveys will be carried out to verify that there is no CO2 leakage.


Japan CCS Company

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