Study on role of simulation of possible leakage from geological CO2 storage in sub-seabed for environmental impact assessment
| Autor: | Kenshi Itaoka, Ryosuke Aoyagi, Satoshi Suzuki, Shuzo Igawa, Osamu Kitamura |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
Engineering
geography geography.geographical_feature_category Computer simulation business.industry CO2 geological storage Environmental impact assessment Soil science Aquifer Numerical simulation Co2 storage TOUGH2 Permeability (earth sciences) Energy(all) Co2 leakage Geotechnical engineering Leakage (economics) business Leakage Seabed |
| Zdroj: | Energy Procedia. :3881-3888 |
| ISSN: | 1876-6102 |
| DOI: | 10.1016/j.egypro.2011.02.325 |
| Popis: | This paper summarizes the selection of short-term leakage scenarios and the results of numerical simulations based on the scenarios in order to assess the impact of CO2 on the ocean environment. Two leakage scenarios are considered: either CO2 migrates from an aquifer to the seafloor through two discontinuous faults, or it migrates through an abandoned well. The distribution and leakage amount of CO2 are estimated for each scenario by using the multi-phase flow simulator TOUGH2. Then, sensitivity analyses for parameters corresponding to the permeability of the leakage path are conducted. The results suggest that differences of permeability significantly affect the total amount and time at which CO2 leakage starts. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|