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<p>This study investigates the physicochemical properties of crude oil from the Novosamarskoye field in the presence of a polymer additive and molybdenum disulfide (MoS<sub>2</sub>). The selected crude oil sample is prone to wax deposition. Rheological measurements, differential scanning calorimetry, and complementary techniques were employed to characterize the key parameters of the systems under study. Two independent methods provided consistent values for the wax appearance temperature (WAT) of the crude oil, which was found to be slightly above 25°C. The effects of the polymer (EVA 11) and MoS<sub>2</sub> additives on viscosity were examined at shear rates of 1 and 100 s<sup>–1</sup>. The role of these additives in the quantity of deposits formed and the temperature of their formation is discussed.</p>

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Some Aspects of the Influence of Additives on the Precipitation of Wax in Oil

  • 期刊论文

  • 发表日期：

    2026年3月1日

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  • A. A. Akhmadiyarov,
  • A. A. Petrov,
  • D. A. Emelianov,
  • I. T. Rakipov

摘要

This study investigates the physicochemical properties of crude oil from the Novosamarskoye field in the presence of a polymer additive and molybdenum disulfide (MoS2). The selected crude oil sample is prone to wax deposition. Rheological measurements, differential scanning calorimetry, and complementary techniques were employed to characterize the key parameters of the systems under study. Two independent methods provided consistent values for the wax appearance temperature (WAT) of the crude oil, which was found to be slightly above 25°C. The effects of the polymer (EVA 11) and MoS2 additives on viscosity were examined at shear rates of 1 and 100 s–1. The role of these additives in the quantity of deposits formed and the temperature of their formation is discussed.