METHOD FOR STUDYING THE PROCESS OF WASHING OFF OIL FILMS WITH AQUEOUS SOLUTIONS OF REAGENTS Russian patent published in 2022 - IPC G01N13/00 

FIELD: oil industry.

SUBSTANCE: invention relates to the field of the oil industry. A method for studying the process of washing oil films with aqueous solutions of reagents is disclosed, which is characterized by the fact that the kinetics of changes in the degree of film washing by changing the light transmission of a working chamber, consisting of an optical cuvette with an aqueous solution of a reagent and a plate of transparent material introduced into it with oil film deposited on its surface, and it is possible to simultaneously study two mechanisms of washing action in aqueous solutions, for this, a block of photoresistors that register a change in the light transmission of a plate with a film is placed evenly opposite its entire surface, while using a multi-channel ADC based on Arduino, they simultaneously fix changes in the parameters of photoresistors located opposite different sections of the film, examining the parameters of photoresistors located opposite the edges of the film, the "classical" mechanism of the washing action, according to which the washing of the oil The measurement starts at its edges with a gradual contraction of the film in its central part, and using the parameters of photoresistors located opposite the central part of the film, they study the ability of solutions to wash films by breaking through them, then evaluate the efficiency of washing films by these mechanisms using dimensionless kinetic parameters equal to the ratio of times , through which 70%–90% of the degree of washing of the oil film with water and a reagent solution on this water is achieved in the corresponding sections of the film, and only such reagents are suitable for use in oil fields, for which these parameters are not less than 1.

EFFECT: invention allows simultaneously fixing the degree of washing off of various sections of the oil film and simultaneously studying two mechanisms of the washing action of aqueous solutions of reagents.

1 cl, 3 dwg