TY - JOUR
T1 - Analysis of changes in stress state and fault stability related to planned CO2 injection at the Tomakomai offshore site
AU - Kano, Yuki
AU - Funatsu, Takahiro
AU - Nakao, Shinsuke
AU - Kusunose, Kinichiro
AU - Ishido, Tsuneo
AU - Lei, Xinglin
AU - Tosha, Toshiyuki
N1 - Funding Information:
This research was partly funded and supported by the Ministry of Economy, Trade and Industry. We would like to acknowledge Japan CCS Co., Ltd., for providing their survey and research data on the Tomakomai site.
Publisher Copyright:
© 2014 The Authors Published by Elsevier Ltd.
PY - 2014
Y1 - 2014
N2 - This paper presents results of analysis of changes in stress state and fault stability related to a planned geological CO2 injection at the Tomakomai offshore site, Hokkaido, Japan. Predicted slip tendency in shallow Moebetsu formations is much lower than that in deep overpressured Takinoue formations, and estimated effects of the planned injection are relatively limited in both formations. Another point is that poro-elastic stress development leads to changes in fault stability compared to that calculated based on pressure buildup alone and the initial stress state. These poro-elastic effects on fault stability are comparable to those due to pressure buildup itself.
AB - This paper presents results of analysis of changes in stress state and fault stability related to a planned geological CO2 injection at the Tomakomai offshore site, Hokkaido, Japan. Predicted slip tendency in shallow Moebetsu formations is much lower than that in deep overpressured Takinoue formations, and estimated effects of the planned injection are relatively limited in both formations. Another point is that poro-elastic stress development leads to changes in fault stability compared to that calculated based on pressure buildup alone and the initial stress state. These poro-elastic effects on fault stability are comparable to those due to pressure buildup itself.
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U2 - 10.1016/j.egypro.2014.11.310
DO - 10.1016/j.egypro.2014.11.310
M3 - Conference article
AN - SCOPUS:84922880434
VL - 63
SP - 2870
EP - 2878
JO - Energy Procedia
JF - Energy Procedia
SN - 1876-6102
T2 - 12th International Conference on Greenhouse Gas Control Technologies, GHGT 2014
Y2 - 5 October 2014 through 9 October 2014
ER -