The usage of foam systems in oil and gas production processes is widespread today. The use of foams in one or another operation at the well determines its main parameters, such as foam-forming ability, foam expansion factor, its stability and other properties. The article analyzes the existing methods of studying the properties of foam systems. In the experimental part of the work the results of research of properties of foam containing foaming agent RGU NG MGS mark RL are given. A comparative assessment of the values of the main parameters of the foam system obtained in accordance with the method of V.A. Amiyan, as well as with the help of a dynamic foam analyzer. All experiments were carried out at a temperature of 25°C and atmospheric pressure. The influence of preparation conditions on the height of the foam column formed was studied. The results of determination of half-life, specific number of bubbles, and foam structure at different gas feed rates were compared. When using the dynamic foam analyzer, an increase in the time of separation of 50 % of liquid from the foam was found when the stirring speed was increased, but an increase in the gas feed rate gave the opposite effect. In the case of V.A. Amiyan's method, the result of the determination depended largely on the amount of air involved in the system during the foam preparation process. Based on the results of studies on the Kruss DFA 100 dynamic foam analyzer, the advantages of an automated approach to the study of foam systems have been experimentally proven. The device allows to determine more accurately the stability index of the foam system, and also simultaneously records the dispersion and half-life of the foam during one experiment. The device is able to analyze the change of foam system properties in time, which is difficult when using non-automated methods.
References
1. Schramm L.L., Surfactants: Fundamentals and applications in the petroleum industry, N.Y.: Cambridge University Press, 2010, DOI: http:// doi.org/10.2307/3515635
2. Konyukhov V.Yu. et al., Fizicheskaya i kolloidnaya khimiya (Physical and colloidal chemistry), Part 2: Kolloidnaya khimiya (Colloid chemistry): edited by Konyukhov V.Yu., Popov K.I., Yurayt Publ., 2023, 309 p.
3. Samoylova S.S., Tarasov V.E., Complex application of a new technique for determining the volume weight of foam (In Russ.), Mezhdunarodnyy nauchno-issledovatel'skiy zhurnal, 2022, no. 7(121), pp. 32–39, DOI: https://doi.org/10.23670/IRJ.2022.121.7.005
4. Amiyan V.A. et al., Primenenie pennykh sistem v neftegazodobyche (Application of foam systems in oil and gas production), Moscow: Nedra Publ., 1987, 229 p.
5. Lunkenheimer K., Malysa K., Winsel K. et al., Novel method and parameters for testing and characterization of foam stability, Langmuir, 2009, V. 26(6), pp. 3883–3888, DOI: https://doi.org/10.1021/la9035002
6. Patent RU 2191367 C1. Procedure determining degree of dispersion of foam, Inventors: Prosekova A.Yu., Romanov A.S., Prosekova O.E., Kandabaev V.V.
7. Erasov V.S., Pletnev M.Yu., Pokid'ko B.V., Stability and rheology of foams containing microbial polysaccharide and particles of silica and bentonite clay (In Russ.), Kolloidnyy zhurnal = Colloid Journal, 2015, no. 77(5), pp. 625–633, DOI: https://doi.org/10.7868/S0023291215050079
8. Mogensen K., Recovery of oil using surfactant-based foams, In: Surfactants in Upstream E&P, Springer, 2021, pp. 291-314, DOI: https://doi.org/10.1007/978-3-030-70026-3_10
9. Samedov T.A., Novruzova S.G., Aliev S.A., New composition for prevention complications in oil wells (In Russ.), Bulatovskie chteniya, 2019, V. 2, pp. 194–197.
10. Tarasenko V.N., Teoreticheskie osnovy razrabotki sostavov effektivnykh penobetonov (Theoretical basis for the development of effective foam concrete compositions), Belgorod: Publ. of BSTU, 2017, 91 p.
11. Lake L.W., Johns R.T., Rossen W.R., Pope G.A., Fundamentals of enhanced oil recovery, Society of Petroleum Engineers, 2014, 489 p.,
