The project is intended to better understand and describe the interactions between injected impure CO2 and reservoir rock mainly at the injection interface.
This research will investigate the long-term effects of impure CO2 injection on the formation integrity through core flood or batch reaction tests.
Ex-situ analysis of core samples (tomography, microscopy, etc.) will be used before and after the tests to inspect the change in core samples after long-time fluid-rock interaction.
The geochemical effects caused by impure CO2, especially SOx, NOx, and amine carry-over, will be detected by analyzing the effluent.
Bespoke reactive-transport modelling will be used to interpret the core flood or batch reaction results, and reservoir simulation coupled with geochemical reactions will be used to provide scaled-up analysis for the near-wellbore region.
The expected results include core flood tests for long-time impure CO2 injection, detailed analysis of the effects of SOx, NOx, amine carry-over on reservoir core in terms of geochemical reactions and surface effects, and finally, reactive-transport modelling of the interactions between impure CO2 and reservoir rock under multiphase flow at the core plug scale and the near wellbore scale.
Main supervisor: Wei Yan
Co- supervisor: Nicolas Bovet