Assessment of CO2 Geological Storage near Riyadh, Saudi Arabia

Assessment of CO2 Geological Storage near Riyadh, Saudi Arabia/nThe Kingdom of Saudi Arabia (KSA) signed the Paris Agreement on climate change and committed to reducing its greenhouse gas emissions. KSA has also launched the Circular Carbon Economy (CCE), a comprehensive framework to address the dual challenge of energy and the environment. Current CO2 emissions from KSA are 600 mty (million tons per year), from which 415mty are from stationary industrial sources. CO2 capture and storage (CCS) offers a safe and effective means to reduce CO2 emissions, at scale, without compromising the role of hydrocarbons in fueling the local and global economies. To determine the storage potential near to the Riyadh area we built a geological model focused on the Unayzah formation using published data. Also, we performed compositional simulations to evaluate the capacity of the reservoir, the fluid flow in the highly-heterogenous reservoir, the contribution of the trapping mechanicians, and the leakage potential of the Khuff formation. Preliminary results showed the potential to store 300 mt of CO2 at a rate of 6 mty. The total storage capacity is, however, much larger and its assessment is ongoing.

Conference/Event Name
KAUST Workshop on Porous Media & 1st InterPore Saudi Chapter Annual Meeting 2021

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