Structural And Mechanical Properties Of Oils From The Muradkhanly And Sangachal-Deniz Fields Of Azerbaijan

Year 2024, Volume: 37 Issue: 3, 1094 - 1105, 01.09.2024

Yusif Rzayev , Sevinj Osmanova , Etibar Ismailov

https://doi.org/10.35378/gujs.1349867

Abstract

In the range of 278-293 K, the structural-mechanical properties of high-viscosity asphaltene-resinous and highly solidifying paraffinic oils of the Muradkhanly and Sangachal-deniz fields of Azerbaijan, which exhibit abnormal viscosity at various shear rates and are characterized by non-Newtonian, viscoplastic and thixotropic properties, have been studied. According to the Eyring-Frenkel equation, the activation energies of the viscous flow Ea and the change in the entropy ΔS of these oils are calculated for the indicated temperature range. Various algorithms for estimating the thermodynamic parameters of the flow ΔH and ΔS published in the literature are analyzed, and the scatter of the values of the estimates of parallel calculations is shown. It is shown that with a decrease in temperature, phase transitions in oils are activated, in particular, for the highly solidifying paraffin oil Sangachal-deniz, it originates from 297 K. For the oils under consideration for the selected shear rate of 64 s-1, the values of the temperature of the beginning of structure formation, static and limiting dynamic shear stresses were determined: for Muradkhanly oil T = 282.83 K, Sangachal-deniz - T = 297.23 K. The results obtained can be used to predict the behavior of oils.

Keywords

Oil, High-viscosity, Asphaltene-resinous, Viscous flow, Structural-mechanical properties

References

• [1] Devlikamov V.V., Khabibullin Z.A., Kabirov M.M., “Anomalous oil”, Nedra, Moscow, (1975).
• [2] Ibragimov N.G., Tronov V.P., Guskova I.A., “Theory and practice of methods of combating organic deposits at a late stage of oil field development”, Oil industry, (2008).
• [3] Samedova F.I., “Azerbaijani Oils”, Baku, Elm, (2014).
• [4] Uriev, N.B., “Technology of Dispersed Systems and Materials: Physicochemical Dynamics of Structure Formation and Rheology”, Germany: Wiley-VCH, (2016). https://www.wiley.com/en-cn/9783527806188
• [5] Mustafayeva G.R., “Rheological models of non–newtonian oils flows”, Journal Transport and storage of oil products and hydrocarbons, 4: 40-42, (2018). DOI: https://doi.org/10.24411/0131-4270-2018-10406
• [6] Matveenko, V.N., Kirsanov, E.A., “Structural rationale of a non-Newtonian flow”, Moscow University Chemistry Bulletin, 72: 69-91, (2017). DOI: https://doi.org/10.3103/S0027131417020031
• [7] Lawson, Ch., Hanson, R., “Solving Least Squares Problems”, Journal of the American Statistical Association, 72: 930-931, (1977). DOI: https://doi.org/10.2307/2286501
• [8] Mirzajanzade, A.Kh., Khasanov, M.M., Bakhtizin, R.N., “Studies on modeling complex oil production systems. Non-linearity, non-equilibrium, heterogeneity”, Ufa: Gilem, (1999).
• [9] Kirsanov, E.A., Matveenko, V.N., “Non-Newtonian behavior of structured systems”, Technosfera, Moscow, (2016). https://www.technosphera.ru/files/book_pdf/0/book_481_489.pdf
• [10] Glasstone, S., Laidler, K., Eyring, H., “The Theory of Rate Processes”, Journal of Chemical Education, 19: 249, (1942). DOI: https://doi.org/10.1021/ed019p249.1
• [11] Frenkel Ya, I., “Kinetic theory of liquids”. Publishing house "Science", Leningrad., (1975).
• [12] Tager, A.A., Botvinnik, G.O., Dreval, V.E., “Energy and entropy of activation of the viscous flow of concentration of polymer solutions”., Chemistry, Moscow, (1970).
• [13] Froishteter, G.B., Danilevich, S.Yu., Radionova, N.V., “Flow and heat exchange of non-Newtonian liquids in pipes”, Naukova Dumka, Kyiv, (1990).
• [14] Aleksandrov A.N., Rogachev M.K., Raupov I.R., “Research of Rheological Properties of High-Wax Oil”, J. Neftegas, 6: 52-62, (2018).
• [15] Rogachev, M.K., Kondrasheva, N.K., “The rheology of oil and oil products”, Ufa State Oil Technical University, Publ. House Ugnuta: Ufa, Russia, (2000).
• [16] Semikhina, L.P., Shtykov, S.V., Karelin, E.A., Kovaleva, I.V., Tarasova, E.V., “Kinetic and Thermodynamic Parameters of Interaction Between Aqueous Solutions of Surfactants and Oil Films”, Bulletin of the South Ural State University. Chemistry series, 11: 5-17, (2019). DOI: 10.14529/chem190101.
• [17] Semikhina, L.P., Pashnin, A.M., Kovaleva, I.V., Semikhin, D.V., “Temperature and Shear Stress Effect on Reological Properties of Oil-Disperse Systems”, Tyumen State University Herald. Physical and Mathematical Modeling, Oil, Gas, Energy, 4: 36-52, (2018). DOI: 10.21684/2411-7978-2018-4-3-36-52
• [18] Kondrasheva, N.K., Baitalov, F.D., Boitsova, A.A., “Comparative assessment of structural-mechanical properties of heavy oils of timano-pechorskaya province”, Journal of Mining Institute, 225: 320-329, (2017). DOI: 10.18454/PMI.2017.3.320.
• [19] Tager, A.A., “Physical chemistry of polymers”, Mir Publishers, (1972).
• [20] Schramm, G., “Fundamentals of practical rheology and rheometry”, Kolos, Moscow, (2003).