In this study, we carry out reservoir simulations to investigate the effect of CO₂ hydrate formation on CO₂ storage capacity in shallow gas fields. Results show that CO₂ hydrate formation moderates the reservoir pressure due to volume shrinkage thus allowing more CO₂ (122–212% pore volume) to be stored. The CO₂ storage capacity in a gas field with CO₂ hydrate formation is up to 3.2 times that without CO₂ hydrate formation. Due to CO₂ hydrate formation, the CO₂ storage capacity in a gas field first increases when initial water saturation increases from 0.1 to 0.3 but then decreases when the initial water saturation increases from 0.3 to 0.5. However, the CO₂ storage capacity decreases with an increase in initial water saturation if there is no CO₂ hydrate forms. Results of screening show that out of 68,327 gas fields in Alberta, 517 gas fields can be used to store CO₂ as CO₂ hydrate, giving a total CO₂ storage capacity of 536 Mt. Of this, depleted gas fields in Alberta have the highest CO₂ storage capacity including the Chard and Saleski gas fields with storage capacity of 138 Mt and 94 Mt, respectively.

在本研究中，我们进行了储层模拟，以研究 CO ₂水合物形成对浅层气田CO _{2储存能力的影响。}结果表明，由于体积收缩，CO _{2水合物的形成缓和了储层压力，从而允许储存更多的 CO 2}（122-212％孔隙体积）。_{形成CO 2}水合物的气田的CO _{2储存能力是不形成CO 2}水合物的气田的3.2倍。由于 CO ₂水合物的形成，CO ₂当初始含水饱和度从 0.1 增加到 0.3 时，气田的储量首先增加，然后在初始含水饱和度从 0.3 增加到 0.5 时减小。然而，如果没有CO ₂水合物形式，CO _{2储存容量会随着初始含水饱和度的增加而降低。}筛选结果表明，在阿尔伯塔省的 68,327 个气田中，有 517 个气田可作为 CO _{2水合物储存 CO 2}，​​总 CO ₂储存容量为 536 Mt。其中，阿尔伯塔省的枯竭气田最高CO ₂封存能力包括 Chard 和 Saleski 气田，封存能力分别为 138 Mt 和 94 Mt。