Asian Journal of Biomedical and Pharmaceutical Sciences

Asian Journal of Biomedical and Pharmaceutical Sciences 44 7897 074717

Oil Viscosity Reduction

Viscosity is fluid’s resistance to flow. Oil viscosity is reduced by dissolving CO2 in oil or may also occur when non-lubricants like solvents and diesel fuel accidentally get into the lubricant. The overall viscosity reduction depends on the initial viscosity where there is greater reduction for higher viscous crudes. Reducing oil viscosity reduces residual oil saturation and increases relative permeability of oil but has no effect on relative permeability ratio. Thin oils have lower viscosity and are poured more easily at low temperatures compared to thick oils. Thick oils are better at maintaining film strength and oil pressure at high temperatures and loads.

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