Project title
Developing Vertical Equilibrium Models for CO2 Storage in Depleted Gas Reservoirs
Project abstract
This PhD project focuses on developing faster simulation methods for CO₂ storage in depleted gas reservoirs. These reservoirs are attractive storage candidates because they have proven geological trapping structures and usually have subsurface data from previous gas production. However, they also present specific challenges, including residual gas, and pressure conditions altered by depletion.
The project develops simplified reservoir models based on Vertical Equilibrium theory, where the main vertical fluid behaviour is represented without resolving every detail of the full three-dimensional reservoir. This allows large-scale CO₂ migration and trapping to be simulated at lower computational cost.
The aim is to provide efficient modelling tools that can support storage site screening, injection planning, uncertainty assessment, and evaluation of long-term storage performance in depleted gas fields.