Development of Oil Blend Compositions to Improve the Rheological Parameters of Waxy Oils
Boranbayeva L. Boiko G. Didukh A. Kenzhaliyev B. Lubchenko N. Sarmurzina R. Kozhamzharova A. Mombekov S.
1 March 2025Multidisciplinary Digital Publishing Institute (MDPI)
Processes
2025#13Issue 3
The possibility of improving the rheological characteristics of waxy oils by using low-viscosity oil as a diluent to optimize oil transportation has been studied. We have previously demonstrated the processes of paraffin deposition in the highly paraffinic oil of the Kumkol oilfields group. In this study, we examine the physicochemical properties and rheological parameters of highly paraffinic West Kazakhstan oil and light Aktobe oil (with different compositions of Aktobe oil—1 to 50%). Our data show that the Aktobe oils are characterized by a low paraffin content (5.6%), a low temperature of yield loss (−30◦C), and low density (820.2 kg/m3) compared with the West Kazakhstan oil mixture (17.3%; +15◦C; 880.2 kg/m3). The effective viscosity of the Aktobe oils at −5◦C was 0.021 Pa·s, while for the West Kazakhstan oil, it was 5.459 Pa·s at +5◦C. The addition of the low-viscosity Aktobe oil as a diluent led to a decrease in the temperature of loss of fluidity (+9◦C) of the highly solidified non-Newtonian West Kazakhstan oil, as well as a decrease in the viscosity (0.367 Pa·s). Accordingly, with the addition of Aktobe oils to the composite oil, the content of naphtheno-aromatic hydrocarbons increased, which led to an improvement in the aggregative stability of the oil dispersion and enhanced the viscosity properties of the oil.
asphalt–resin–paraffin deposits (ARPDs) , dispersed system , low-viscosity oil , oil mixtures , rheological characteristics
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Geology and Oil-Gas Business Institute Named After K. Turyssov, Kazakh National Technical University Named After K.I. Satpayev, 22 Satpaev Str, Almaty, 050013, Kazakhstan
Research and Development Centre of “KazTransOil” JSC, Almaty, 010000, Kazakhstan
Institute of Metallurgy and Ore Beneficiation JSC, Almaty, 050010, Kazakhstan
Kazenergy Association, Astana, 010000, Kazakhstan
School of Pharmacy, JSC “S.D. Asfendiyarov Kazakh National Medical University”, Almaty, 050000, Kazakhstan
JSC Scientific Center for Anti-Infectious Drugs, Almaty, 050060, Kazakhstan
Geology and Oil-Gas Business Institute Named After K. Turyssov
Research and Development Centre of “KazTransOil” JSC
Institute of Metallurgy and Ore Beneficiation JSC
Kazenergy Association
School of Pharmacy
JSC Scientific Center for Anti-Infectious Drugs
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