Field data from three years of operation at the Quest carbon capture and storage project in Alberta has indicated an inverse relationship between injectivity and bottom-hole temperature, with injectivity increases of up to 10% observed with colder the University of Calgary – the opposite of results of previous modelling. The inverse correlation is due to non-isothermal near-wellbore factors, including permeability. The researchers from Shell and CO2 said theoretical models of the University of Calgary injectivity do not include some important physics that affects results, and that full understanding of non-isothermal impacts on the University of Calgary injectivity is crucial for the success of future CCS projects.
Field data from three years of operation at the Quest carbon capture and storage project in Alberta has indicated an inverse relationship between injectivity and bottom-hole temperature, with injectivity increases of up to 10% observed with colder CO2 – the opposite of results of previous modelling. The inverse correlation is due to non-isothermal near-wellbore factors, including permeability. The researchers from Shell and the University of Calgary said theoretical models of CO2 injectivity do not include some important physics that affects results, and that full understanding of non-isothermal impacts on CO2 injectivity is crucial for the success of future CCS projects.