Depleted oil and gas reservoirs are underground formations that have been significantly drained of their hydrocarbons through extraction processes. Over time, as oil and gas are removed, the pressure within these reservoirs decreases, making it more challenging to extract remaining resources. These reservoirs can still hold some hydrocarbons, but the economic viability of further extraction often diminishes. Technologies such as enhanced oil recovery (EOR) may be employed to access leftover resources, but the efficiency and cost-effectiveness of these methods can vary widely depending on the specific characteristics of the reservoir.