Literature Review of Nanotechnology in the Enhanced Oil Recovery
In recent studies, there has been an increasing focus on Nanoparticles Enhanced Oil Recovery
(EOR). Nanoparticles EOR is a method that was initially developed to improve microscopic and macroscopic displacement efficiency. In some recent applications nanoparticles have been assisted the conventional EOR methods such as a polymer, surfactant, and Co2 flooding, with the purpose of increasing oil production. Oil recovery by nanoparticles EOR has been recognized to changing properties inside the reservoir. Where, the Nanoparticles have the potential to change oil wetting phase formation, decrease the displaced viscosity, increase the displacing viscosity, etc. In this literature, the abilities to use nanoparticles in EOR are investigated. The function of different types of nanoparticles, different types of Dispersing agents, availability of nanomaterials in the lab, the effect of nanoparticles to change the reservoir, oil and water properties, and future challenges and concerns about the nanoparticles, are reviewed. However, the stability of suspensions of nanoparticles is still the most barrier to use nanoparticles in EOR. Upcoming studies are necessary to focus on the outcome of the appropriate techniques of nanoparticles to improve their stability under the worst conditions of reservoirs and investigate new types of nanoparticles.