Abstract
The article presents the results of a study of oil gas saturation influence on its viscosity. Studies of the dissolved gas effect on the oil viscosity in a wide range of gas and water content changes in reservoir products are presented. According to some studies, the dissolved gas presence in oil can significantly reduce its viscosity. Based on a comparative analysis of the oil viscosity under standard conditions, a statistical relationship between the viscosity of gas-saturated oil and its standard value, depending on the gas saturation, was obtained. A method for gas-saturated water-oil emulsion viscosity calculating is proposed on the example of reservoir oils of the Arlan oil field based on preliminary measurement of the viscosity of degassed liquid and gas-saturated oil at 20° C, the residual amount of dissolved gas in oil determination by the degassing curve of this oil. Keywords: dissolved gas; degassed oil viscosity; water content; oil-water emulsion.
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