Economical considerations on CCS system for geological uncertainty and injection failure

Haruhiro Suzuki, Amin Yousefisahzbi, Yuichi Sugai, Hossein Yousefi, Kyuro Sasaki

研究成果: Contribution to journalArticle査読

抄録

In this study, an operation research on the performances of Tomakomai CCS project has been carried out for investigating the permeability uncertainty and the failures on CO2 operation and transportation. Firstly, economical effects of estimation error in aquifer permeability were investigated by using a reservoir block modeling based on numerical simulation results on CO2 injection rate. Secondary, economic loss resulted from failure of CO2 injection was evaluated by assuming periodical injection halts. It is clear that CO2 buffers, such as sphere gas tanks, should be installed to store CO2 on the CCS process which can temporarily store CO2 after it is captured when a trouble on transportation or injection processes occurs. Without a buffer, releasing the captured CO2 to the atmosphere due to system failure or trouble in injection will add to capture costs, or will result in carbon tax or opportunity loss on CCS. The larger size of CO2 buffer volume can potentially withstand against long-term trouble, however the larger buffer volume needs larger cost for initial construction and maintenance. The study also present the optimum CO2 buffer volume based on economical evaluations for a commercial CCS model based on several simulations performed with and without CO2 buffer in the system.

本文言語英語
ページ(範囲)772-784
ページ数13
ジャーナルInternational Journal of Energy Economics and Policy
4
4
出版ステータス出版済み - 1 1 2014

All Science Journal Classification (ASJC) codes

  • Global and Planetary Change
  • Economics, Econometrics and Finance(all)

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