Course description
You are tasked with designing brand new CO2 injector wells, together with a smattering of monitoring boreholes. Gas producers and water injectors are a piece of cake, but carbon dioxide? And now the capture side warns you that there will be substantial H2S and SOx thrown in, and a smattering of NOx. After going through a mound of literature and calling suppliers, you’re now convinced of the need to use specialized (and expensive) cement, together with high-end (and even more expensive) corrosion resistant alloys. Confused?
This 3-day workshop focuses on material selection for new or existing wells that are used to inject and monitor CO2 as part of Carbon Capture Utilization – for enhanced oil recovery – and Storage (CCUS) projects.
Wells are widely considered the most critical containment element in these projects. The main reason for this perceived risk is the high corrosion rate of carbon steel when exposed to wet CO2 and acid drop-out, and the tendency of Portland cement to react with the gas.
The first day will focus on steel: what drives corrosion and how can we find the optimum compromise between material selection and purity of the injected stream. During the second day we will touch on CO2-rock reactions and analyze in detail the interactions between the injected stream and Portland cement: not all reactions bring about degradation, and we will see how some may actually be beneficial. The third day will allow us to bring all concepts and methods together, applying them to a series of case studies during an interactive workshop.
Bringing together experts from each type of well materials ensures highly advanced content and engaging delivery on one of the most important (and potentially costly) decisions facing CCUS well engineers.
