APPLICATION OF SURFACTANT SOLUTIONS TO INCREASE THE OIL CONTENT OF THE FORMATION

Abstract

The oilyieldcoefficientis the ratio of the volume of oil produced to the volume of oil calculated at the original field.Chemical methods for increasing the oil content of the formation are wetting with the use of active additives (surfactants, polymers, alkalis, sulfuric acid, micellar solutions).

This article shows the method of using surfactants to increase the oil permeability of the reservoir. One of the processes of increasing oil permeability is considered to be the wetting of the layer with surfactant solution. Surfactants (surfactants) are substances that adsorb at the boundary of phases, reducing the surface tension of this boundary. Surfactant solution can be used at the initial and final stages of field development. This method is used in order to break down the residual oil, break down the oil film and increase oil permeability. The surface activity that many organic compounds can exhibit under certain conditions depends on the chemical composition of its molecules and external conditions. Examples of them are the following: the nature of the environment and contact phases, the concentration and temperature of the surfactant