Application of Nanotechnology in Increasing Oil Recovery Coefficient of the Reservoir

Abstract

When the formation is injected with a nanosystem, the demulsification process takes place in the formation water; as a result, a nanoscreen against formation water and a nano-layer between the phases are formed. In this case, the surface tension on the oil and rock surface decreases and separation of oil from the reservoir occurs. As a result of the demulsation process, the conductivity of the reservoir collectors increases, thus, the filtration of oil from the reservoir to the bottomhole accelerates. One of the most promising technologies in this area is the treatment of the bottomhole zone with specially prepared solutions - nanocompositions consisting of a complex of surfactants and nanoparticles. Nanocompositions significantly increase the compaction, lubrication and solubility properties of oil under mining conditions.