Experimental Studies on Reduction of Reverse Phase Point in Heavy Crude Oil by Ultrasonic Irradiation

Hua Qiang


In order to decrease transportation cost, experimental studies on viscosity reduction of heavy oil-water system and on viscosity changing rules by ultrasonic wave have been carried out. The results show that ultrasonic wave process can reduce reverse phase point of oil-water system, the water-cut decreases from 50%-60% to 20%-30% by ultrasonic wave, oil-water system changes into emulsion oil-in-water or oil floating in water dispersed system, it can reduce the water amount of transportation. And ultrasonic wave has definite impact on component of heavy oil, peak value of heavy oil decreases gradually when power increases, cavitation tends to saturate at a certain power, and component keeps stable essentially.


experimental studies; heavy oil produced liquid; reverse phase point; ultrasonic wave; viscosity reduction mechanism

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Doust A.M., Rahimi M., and Feyzi M., 2015. Effects of solvent addition and ultrasound waves on viscosity reduction of residue fuel oil. Chemical Engineering and Processing: Process Intensification 95: 353-61.

Hamidi H., Mohammadian E., Junin R., Rafati R., Azdarpour A., and Junid M., 2014. The effect of ultrasonic waves on oil viscosity. Petroleum Science and Technology 32(19): 2387-95.

Hamida T. and T. Babadagli. 2008. Effects of ultrasonic waves on the interfacial forces between oil and water. Ultrasonics Sonochemistry 15(4): 274-8.

Hamidi H., Mohammadian E., Junin R., Rafati R., Manan M., and Azdarpour A., 2014. A technique for evaluating the oil/heavy-oil viscosity changes under ultrasound in a simulated porous medium. Ultrasonics 54(2): 655-62.

Mousavi S.M., Ramazani A., Najafi I., and Davachi SM., 2012. Effect of ultrasonic irradiation on rheological properties of asphaltenic crude oils. Petroleum Science 9(1): 82-8.

Mullakaev M.S., Volkova G.I., and Gradov O.M., 2015. Effect of ultrasound on the viscosity-temperature properties of crude oils of various compositions. Theoretical Foundations of Chemical Engineering 49(3): 287-96.

Hu G., Li J., Huang S., and Li Y., 2016. Oil recovery from petroleum sludge through ultrasonic assisted solvent extraction. Journal of Environmental Science and Health Part A, Toxic/Hazardous Substances and Environmental Engineering 51(11): 921-9.

Okparanma R.N., Coulon F., and Mouazen A.M., 2014. Analysis of petroleum-contaminated soils by diffuse reflectance spectroscopy and sequential ultrasonic solvent extraction-gas chromatography. Environmental Pollution 184: 298-305.

Li J., Song X., Hu G., and Thring R.W., 2013. Ultrasonic desorption of petroleum hydrocarbons from crude oil contaminated soils. Journal of Environmental Science and Health Part A, Toxic/Hazardous Substances and Environmental Engineering 48(11): 1378-89.

Hua Q., Tan D., and Chen L., 2017. Ultrasonic irradiation reduces Shengli heavy oil viscosity. Oil and Gas Journal 115(10): 46-49.