This research evaluates the CO2 storage capacity of the Pariñas Formation belonging to the Talara basin in Peru through analytical modeling based on mass balance equations and numerical modeling using IMEX CMG. Pariñas Formation has several depleted hydrocarbon reservoirs that presents favorable conditions for CO₂ geological storage. It has an average porosity of 17.6% and a permeability of 640 mD in the horizontal direction consisting of sandstones with interspersed lutites layers. The study evaluates the depleted Bellavista oil deposits involving CO2 storage capacity estimation with CO2 and reservoir fluid (oil and water) interaction. It involves numerical modeling based on the reservoirs properties and CO2 injection simulation not exceeding the fracture pressure of the reservoir rock. This approach is the first one carried out in Peru and provides the chance to evaluate the CO2 storage capacity in a hydrocarbon reservoir in this part of the world, as a strategy to mitigate future global change impacts. The results indicate a storage capacity of 35.37 million tons of CO₂, approximately. Besides, the sandstone reservoir of the Pariñas geological formation has adequate characteristics to serve as a CO₂ storage reservoir. C₃₀₊ pseudo component shows greater sensitivity in its properties (temperature and critical pressure) adjusting the fluid properties with the experimental data (saturation pressure, viscosity and minimum miscibility pressure).

本研究通过基于质量平衡方程的分析建模和使用 IMEX CMG 的数值建模，评估了属于秘鲁 Talara 盆地的 Pariñas 地层的 CO2 储存能力。Pariñas 组有几个枯竭的油气藏，为 CO ₂提供了有利条件地质储藏。它的平均孔隙度为 17.6%，水平方向的渗透率为 640 mD，由散布着黄岩层的砂岩组成。该研究评估了枯竭的 Bellavista 油藏，涉及 CO2 存储容量估计以及 CO2 和油藏流体（油和水）相互作用。它涉及基于储层特性的数值建模和不超过储层岩石破裂压力的 CO2 注入模拟。这种方法是在秘鲁实施的第一个方法，提供了评估世界这一地区碳氢化合物储层的二氧化碳储存能力的机会，作为减轻未来全球变化影响的策略。结果表明，CO ₂封存能力为 3537 万吨， 大约。此外，Pariñas 地质构造的砂岩储层具有足够的特性，可作为 CO ₂存储储层。C ₃₀₊伪组分在其特性（温度和临界压力）方面表现出更高的敏感性，通过实验数据（饱和压力、粘度和最小混溶压力）调整流体特性。