Enhanced Oil Recovery helps maximize the oil reserves recovered, extend the field life, and
increase the recovery factor. It is an essential tool for firms, helping to maintain production and
increasing the returns on older investments. Several techniques are currently used for enhanced
oil recovery, each with varying cost, efficiency, and safety implications. Of all the methods,
Surfactant EOR has received more attention in recent years, primarily due to its increasing cost-
effectiveness against rising oil prices.
Chemical-enhanced oil recovery is a significant EOR method that reduces residual oil saturation
by lowering water-oil interfacial tension (surfactant/alkaline) and increasing the volumetric
sweep efficiency by decreasing the water-oil mobility ratio (polymer).
This experiment is based on two EOR methods, one of which is the Chemical EOR method.
Two fluids based on chemical EOR are prepared and used for injection as EOR fluids. After
injecting these fluids, they are compared based on their sweeping capabilities.
Gas injection is one of the oldest oil production methods and is an essential method in the EOR
industry. As a technique that yields the highest oil recovery rate, steam injection also has a
special place in the oil recovery industry. Yet, it comes second after the most crucial technique of
oil recovery, i.e., gas injection. EOR using carbon dioxide reduces the production cost of oil and
its price fluctuations, and it is the only technique that has developed steadily in recent years.
After steam injection, hydrocarbon injection has rendered the highest rate of oil recovery. Since
there have been many efforts to reduce gas combustion, gas injection is considered one of the
most essential techniques in the oil recovery industry, both now and in the future.
Keywords: Enhanced Oil Recovery, improve oil Recovery, Production, Sweep Efficiency, LPG,
Saline, Benzene.