CO2 flooding is recognized as an efficient method for enhancing shale oil recovery, while CO2-oil MMP (minimum miscibility pressure) in the micro-nanoscale a crucial parameter. This paper presents calculating MMPs of pure hydrocarbons (C4H10, C6H14, C8H18, and C10H22) systems nanopores (3 nm to 10 nm) with temperature ranging from 290.15 K 373.15 K. Firstly, we modify Peng-Robinson equation sta...

This study provides insights into the experience gained from investigating thermodynamic behavior of well and reservoir fluids during acid gas injection (AGI) in a hydrocarbon field to enhance oil recovery (EOR) reduce greenhouse emissions. Unlike conventional water natural injection, AGI involves complicated phase changes physical property variations at various pressure-temperature (P-T) condi...

Gas injection into carbonate formations is one of the most important activities to protect oil reserves that can guarantee a steady production. On-time injection of enough gas can result in the recovery of billions barrels of oil. In addition, it can preserve a huge amount of gas for the next generations. If the reservoir depth is shallow, or the reservoir fluid has a little amount of intermedi...