The UAE’s state-owned company ADNOC has begun constructing the sequestered carbon dioxide injection well in a carbonate saline aquifer.

The company confirmed the development and said the project “would be the world’s first” well in such an aquifer. 

The injection well will store carbon underground, similar to other carbon capture and storage (CCS) technologies. Various reports have said that CCS technologies will be needed to help achieve net-zero by 2050. ADNOC recently launched a new division, Low Carbon Solutions & International Growth, aiming to achieve net-zero scope 1 and 2 emissions by 2050.

According to a statement released on 18 January, the project will begin injecting CO₂ in the second quarter of 2023. The project, if operational, would first fully sequester a minimum of 18,000 tonnes per year (tpy) of CO₂. Nitrogen fertiliser export company Fertiglobe’s UAE operations will capture the CO₂ for injection into Abu Dhabi’s onshore carbonate aquifers.

ADNOC already operates a carbon capture facility in Al Reyadah, which can absorb up to 800,000 tpy of CO₂. According to the company, the well location for CO₂ injection and targeted geological formations were identified using ADNOC’s 3D seismic survey findings and the business’s subsurface modelling capabilities.

The project will also contribute to manufacturing lower-carbon ammonia as a stable hydrogen carrier.