Анализируются результаты комплексных исследований физико-химических и оптических свойств нефти Винокуровской залежи, расположенной на северном борте Южно-Татарского свода. Методика исследований включала отбор и подготовку устьевых проб нефти, производились обезвоживание, измерения плотности, кинематической вязкости, поверхностного натяжения и оптических свойств. Выявлены типовые особенности и корреляционные зависимости коэффициента светопоглощения от физических свойств. Разработан комплекс качественных и количественных оптических характеристик добываемой нефти и проведен их факторный анализ. Изучено влияние емкостно-фильтрационных свойств коллекторов, такие как глинистость, проницаемость, гидропроводность работающей толщины пласта на физико-химические свойства добываемой нефти.

The article analyzes the results of comprehensive studies of physical, chemical and optical properties of oil of Vinokurovskaya deposit, located on the northern side of the South Tatar dome-shaped fold. Terrigenous sediments of the Bobrikovsky horizon of the Vinokurovskaya deposit were selected as the object of study. The studies included taking and dewatering of oil samples, measuring their density, kinematic viscosity, surface tension and optical properties. Standard features, correlation dependences of light absorption coefficient on physical properties, complex physical, chemical and optical characteristics of produced oil were established. Regularities of light absorption coefficient changes in oil and water-oil zones have been studied. A set of quantitative and qualitative optical characteristics was developed and their factor analysis was carried out. The influence of capacitance-fluid-absorbing properties of the reservoir, such as sphericity, permeability, water permeability and effective thickness of the reservoir, on the physical and chemical properties of the produced oil, including the optical properties of complex oil, has been studied.