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In this course we will explore how a plume of CO2 spreads from an injection well, and sweeps through a saline aquifer, assessing the fraction of the pore space accessed by the CO2 and the rate of dissolution of the CO2 into the formation brine.
Additionally, we will explore the controls on the migration of a plume of CO2 in the post-injection phase, in order to assess how far the CO2 will spread until it either becomes (i) capillary trapped in the pore spaces, (ii) trapped in a structural high of the formation, or (iii) dissolved in the formation brine
We will also develop simplified models to assess these different controls on the CO2 plume, in terms of the buoyancy-controlled flow of the plume and the rate of transition between different trapping processes. This information is invaluable for helping to assure regulators about the long-term security of storage, through helping to demonstrate the controls and processes that impact this long-term fate of the CO2 in the storage system.
This course is aimed at subsurface oil and gas professionals who are familiar with the basic concepts of CCS.
Available H2 2023
Participants will learn to:
Controls on the flow, sweep and dissolution of a CO2 plume in a saline aquifer
Post-injection migration of a CO2 plume and controls on capillary trapping