Preprint Article Version 1 This version is not peer-reviewed

The scCO2 Storage and Sealing Capacity of the Janggi Basin in Korea: Based on Laboratory Scale Experiments

Version 1 : Received: 5 June 2019 / Approved: 6 June 2019 / Online: 6 June 2019 (09:51:40 CEST)

How to cite: Park, J.; Yang, M.; Kim, S.; Lee, M.; Wang, S. The scCO2 Storage and Sealing Capacity of the Janggi Basin in Korea: Based on Laboratory Scale Experiments. Preprints 2019, 2019060047 (doi: 10.20944/preprints201906.0047.v1). Park, J.; Yang, M.; Kim, S.; Lee, M.; Wang, S. The scCO2 Storage and Sealing Capacity of the Janggi Basin in Korea: Based on Laboratory Scale Experiments. Preprints 2019, 2019060047 (doi: 10.20944/preprints201906.0047.v1).

Abstract

Laboratory experiments were performed to measure the supercritical CO2 (scCO2) storage ratio (%) of the conglomerate and sandstone in Janggi Basin, which are classified as rock in Korea available for CO2 storage. The scCO2 storage capacity was evaluated by direct measurement of the scCO2 amount replacing pore water in a reservoir rock core. The scCO2 sealing capacity of the cap rock (i.e., tuff and mudstone), was also compared by measuring the initial scCO2 seepage pressure (Δp) into the rock core. The measured average scCO2 storage ratio of the conglomerate and the sandstone in Janggi Basin was 30.7 % and 13.1 %, respectively, suggesting that the scCO2 storage capacity is greater than 360,000 metric tons in the Janggi Basin. The initial scCO2 seepage pressure of the tuff in the Janggi Basin was 15 bar and continuous scCO2 injection into the tuff core occurred at Δp higher than 20 bar. For the mudstone, the initial scCO2 seepage pressure was higher than 150 bar (10 times higher than that of the tuff), demonstrating that the mudstone is more suitable than the tuff to shield scCO2 leakage from the reservoir rock in the Janggi Basin.

Subject Areas

CO2 reservoir rock; CO2 sealing capacity; CO2 sequestration; CO2 storage capacity; CO2 storage ratio; supercritical CO2

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.