A new approach to assessing the emulsion complexity of the oil preparation system using the Gremikhinsky field as an example

UDK: 622.276.43.05

DOI: 10.24887/0028-2448-2025-11-53-58

Key words: oil treatment, emulsion map, water-in-oil emulsion, chloride salt content, oil desalination, de-emulsification

Authors: N.V. Novikova (Udmurtneft named after V.I. Kudinov PJSC, RF, Izhevsk); N.S. Buldakova (Udmurtneft named after V.I. Kudinov PJSC, RF, Izhevsk); S.A. Shalimov (Udmurtneft named after V.I. Kudinov PJSC, RF, Izhevsk); E.A. Maurina (Udmurtneft named after V.I. Kudinov PJSC, RF, Izhevsk); A.N. Kolevatov (Izhevsk Petroleum Research Center CJSC, RF, Izhevsk); A.S. Kamenskykh (Izhevsk Petroleum Research Center CJSC, RF, Izhevsk); A.E. Folomeev (Izhevsk Petroleum Research Center CJSC, RF, Izhevsk); E.Y. Nevyadovsky (Rosneft Oil Company, RF, Moscow)

The problems of oil treatment can be called a paradox, because the causes of their occurrence are known, nevertheless they are not finally solved and continue to cause difficulties at almost every oil treatment facility. It is well known about the acid emulsions formed upon contact with acid compositions, the effect of polymers and mechanical impurities of various origins on the stabilization of the emulsion, however, no typical technological solutions have been developed to reduce the influence of these factors. There is also no unified approach to assessing the degree of emulsion complexity in the oil gathering and treatment systems. As a part of monitoring the current state of the oil gathering and treatment system of the oil fields, numerous studies of fluids are performed. A large array of indicators of oil and water quality which were collected over a long period of time can be constructively used with proper systematization, as well as visualization. A new tool was proposed to organize the effective processing of the results of the analysis of fluids - the emulsion map. The degree of emulsion complexity in the oil treatment system was assessed, problematic areas were identified, and ways to optimize them were proposed using the example of the Gremikha oil field of Udmurtneft named after V.I. Kudinov PJSC. The diagnostic tool, the emulsion map has a high potential for use in the field facilities of oil production companies and can be adapted to the specific conditions of oil fields.

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