| Abstract |
In this paper we investigate the feasibility and limitations of a novel CO2 monitoring technique that relies on pore pressure monitoring in above injection zone/caprock permeable layers combined with accurate two-way coupled reservoir simulations. We investigated the effect of the presence of faults on this monitoring technique and we found that when accurately implemented, it has the potential of identifying the existence of leaky faults in a very small-time frame (five to 10 days for high to moderately leaky faults and up to two hundred days for low transmissibility faults). When compared to direct monitoring techniques that rely on measuring CO2 saturation in the monitoring layer, we found that Above Injection Zone pressure monitoring has the advantage of early detection of CO2 leakage through medium to high conductivity pathways but would be limited when the hydraulic conductivity of the leakage pathway is low and would perform better when combined with a direct monitoring technique. |
| Authors |
A. K. Chellal Hichem , Malki Mohamed Lamine  , Sven Egenhoff 
|
| Journal Info |
OnePetro | 50th U.S. Rock Mechanics/Geomechanics Symposium
|
| Publication Date |
6/23/2024 |
| ISSN |
|
Type |
article |
| Open Access |
closed
|
| DOI |
https://doi.org/10.56952/arma-2024-1026 |
| Keywords |
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