Carbon Capture and Storage

Politicians around the world are realising that CCS is a critical component in achieving Net Zero. They know in principle what needs to be done but lack insight into which of their many assets is a natural choice for CCS and how to convince stakeholders to commit to financial investment. If it was a horse race, they need to choose the best runners and know how to jump the hurdles to get to the finishing line.

Therefore, for the second AAPG CCS workshop, we have decided to look deeper into two subjects:

1. Storage and Sequestration - "Runners"
2. Reducing the cost of CCS by making the C0₂ work – "Getting to the Finish Line"

Storage and Sequestration will provide principles that you can start to apply to your own candidates to high grade options. Making the C0₂ work will help you think laterally about how to add value outside of fiscal incentives to get a project, which includes CCS, accepted for Final Investment Decision (FID).

• Storage - We invite talks in this session that focus on how we physically displace indigenous subsurface pore fluid with C0₂. Depending on temperature and pressure, C0₂ can be a gas, supercritical fluid, liquid or solid. It can be relatively viscous, soluble, miscible. All these properties impact how we optimise injectivity and how we want C0₂ to interact with the in-place pore fluid.

We are looking for talks that succinctly explain these behaviours and case studies where these behaviours are demonstrated both in successful and failed injection operations.

• Sequestration - Sequestration is the chemical twin of physical “Storage”. In this section we will explore the use of chemistry to lock C0₂ underground for example by rapid mineralisation with ultra mafics or adsorption by coal. Critical review and case study talks are welcome.

• C0₂ in a Leading Role - By film analogy, this session will explore ways in which C0₂ is the main actor or working fluid in the process. Example topics include C0₂ Plume Geothermal Energy (CPG), Enhanced Oil and Gas Recovery where not only is the C0₂ injected into the subsurface but it is made to “work” to add value to the process.

• C0₂ in a Supporting Role - C0₂ also has a supporting role to play in various processes. The most obvious one being Blue Hydrogen and the creation of other energy vectors like ammonia. Review talks on the viability of these processes and the implication for Carbon Capture and Storage/Sequestration will be considered.