Qi Li
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Qi Li has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Futao Mo
Institute of Marine Structures and Naval Architectures, Zhejiang University, Hangzhou 310058, China
1 shared publication - Jiayi Shen
Institute of Port, Coastal and Offshore Engineering, Zhejiang University, Hangzhou, China
1 shared publication - Tao Xuan
CNOOC Energy Development Co., Ltd. Engineering Technology Branch, Tianjing 300450, China
1 shared publication - Yi Hong
Key Laboratory of Offshore Geotechnics and Material of Zhejiang Province, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, China
1 shared publication
Latest Publications
- Open Access
- 21 August 2025
- Published by MDPI AG in Technologies
- Vol. 13 (8) , 375
Comparative Analysis of Multi-Layer and Single-Layer Injection Methods for Offshore CCS in Saline Aquifer Storage
The aim of this study is to compare the performance of the multi-layer and the single-layer CO2 injection methods used in offshore carbon capture and storage (CCS) through TOUGH-FLAC numerical simulations. Four key indicators, namely CO2 saturation, pore pressure, vertical displacement, and Coulomb Failure Stress (CFS), are employed as indices to assess the storage capacity of reservoirs and the mechanical stability of caprocks. Numerical simulation results show that the multi-layer injection method increases the CO2 migration distance and reduces CFS values compared with the single-layer injection method. After 1 year of injection, the combined CO2 migration distance across two aquifers in Case 3 is 610 m, which is greater than that obtained using single-layer injection in Cases 1 and 2 (350 m and 380 m, respectively). Additionally, deep saline aquifers demonstrate superior CO2 storage capacity due to higher overburden pressure, which also reduces the risk of caprock failures. After 30 years of injection, in Cases 1 and 2, the maximum CFS values are 0.591 and 0.567, respectively, and the CO2 migration distances are 2400 m and 2650 m, respectively. Overall, the findings of this study indicate that the multi-layer injection method, particularly in deep saline aquifers, provides a safer and more efficient CO2 injection approach for offshore CCS projects.
- 21 August 2025
- Published by MDPI AG in Technologies
- Vol. 13 (8) , 375
Open AccessComparative Analysis of Multi-Layer and Single-Layer Injection Methods for Offshore CCS in Saline Aquifer Storage
The aim of this study is to compare the performance of the multi-layer and the single-layer CO2 injection methods used in offshore carbon capture and storage (CCS) through TOUGH-FLAC numerical simulations. Four key indicators, namely CO2 saturation, pore pressure, vertical displacement, and Coulomb Failure Stress (CFS), are employed as indices to assess the storage capacity of reservoirs and the mechanical stability of caprocks. Numerical simulation results show that the multi-layer injection method increases the CO2 migration distance and reduces CFS values compared with the single-layer injection method. After 1 year of injection, the combined CO2 migration distance across two aquifers in Case 3 is 610 m, which is greater than that obtained using single-layer injection in Cases 1 and 2 (350 m and 380 m, respectively). Additionally, deep saline aquifers demonstrate superior CO2 storage capacity due to higher overburden pressure, which also reduces the risk of caprock failures. After 30 years of injection, in Cases 1 and 2, the maximum CFS values are 0.591 and 0.567, respectively, and the CO2 migration distances are 2400 m and 2650 m, respectively. Overall, the findings of this study indicate that the multi-layer injection method, particularly in deep saline aquifers, provides a safer and more efficient CO2 injection approach for offshore CCS projects.