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. 

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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.