CO2 storage capacity estimates for the major hydrocarbon reservoirs in Libya

[eAfrica lacks estimate for CCS storage capacity, which is vital for cutting emissions. Hydrocarbon-dependent countries in Africa could potentially lead the way in CCS transitions. This study aims to assess the static CO2 storage capacity for hydrocarbon reservoirs in Libya, including those in the Sirt, Murzuq, Ghadamis, and Sabratah basins. Given the sparsity of subsurface data in the public domain for these basins, we use a volumetric approach to convert oil and gas reserves into theoretical and effective static CO2 storage estimates. The Sirt and Sabratah basins have the highest static storage capacities, with theoretical capacities of 4.6 and 2.1 GtCO2, and effective capacities of 2.8 and 1.8 GtCO2, respectively. We apply sensitivity analysis to screen for the impact of limited available subsurface data and find that the main sources of uncertainty for oil reservoirs are Efficiency Factor and Recovery Factor, followed by Oil Formation Volume Factor, while gas reservoirs are largely impacted by Gas Formation Volume Factor. Our work reveals that four hydrocarbon producing basins in Libya have static storage capacity to accommodate up to 200 years of the country’s current CO2 emissions.nter Abstract Body]