127 10 th International Symposium „Topical Problems in the Field of Electrical and Power Engineering“ and “Doctoral School of Energy and Geotechnology II” Pärnu, Estonia, January 10-15, 2011 Abnormal oil rheological properties changing by ultrosound using different power Eugene Krapivsky, Sergei Sabanov, Maxim Kozachok St. Petersburg State Mining Institute, Tallinn University of Technology Sergei.sabanov@ttu.ee, Kozachokm@rambler.ru, krapivsky@rambler.ru Abstract Contents of abnormal oil in the Russian oil balance is constantly increasing. Transportation of abnormal oil is very difficult process. This paper describes the possibility to change the rheological properties of the abnormal oil. This is a impact on oil by ultrasound with different power. Oil treated by ultrasound with changes in temperature and with the various dilutions addition. There are water, light hydrocarbons and chemical demulsifier. The research results are analyzed. Keywords Rheological properties, ultrasound, dilutions, viscosity, transportation, processing Introduction One of the main oil-pumping complex tasks is to improve the technology of the anomalous transport of oil. A content of abnormal oil in the Russian balance of oil is constantly increasing. Russian and foreign researchers proposed various methods and technologies to improve the rheological properties of abnormal oil-gas saturation, heat treatment, a mixture of abnormal oil from oil with improved rheological characteristics, the use of depressant additives, mechanical destruction of paraffinic structures, etc. However, the problem of energy consumption for transportation of oil is most acute. This is due to imperfection of the technical means and technological processes, transport and storage of oil and is a prerequisite for the development of new methods and technologies for improving the rheological properties of abnormal oil [1 - 3]. In this study, carried out studies on treatment of abnormal oil ultrasonic power of 1,5 W/cm 2 and 15 W/cm 2 . We Abnormal oil Kharyaga deposit is used. The experimental equipment to study the effect of ultrasonic treatment on oil rheological properties are in Figure1. 1. Ultrasound of low power Work emitters based on the piezoelectric effect to convert mechanical and acoustic vibrations into electrical and back. When sonicated clearly observed cavitation effects: formed tiny bubbles filled with gas and steam, which, after a phase of low pressure, almost immediately collapses due to the transition into a phase of compression. It is known that one of the factors complicating the anomalous transport of oil is high pour point. For oil Kharyaga field, it is an average of 24 C. The paraffin 23.5% resins and asphaltenes 3.5 and 0.7 accordingly. Measurements using the rotational viscometer "Reotest 4.1" were made. Samples thermostatically controlled by a cooling/heating circulating bath. Figure 1 shows the viscosity of the processed oil temperature. The studies in a range from 24 to 50 °C in the range of 24 to 40 °C with a shorter temperature step were conducted. Fig. 1. Experimental equipment 1 (1) - ultrasonic generator produced by "Ultrasonic technique - INLAB", (2) - bath 20L. filled with water, (3) - 6 piezoelectric emitters with a total capacity of 1 kW, (4) - heater, (5) - a container of processed oil Sonication in 20 minutes was carried out, The pressure was 100 kPa. In this case, a significant temperature change did not occur due to the presence of large amounts of water in the bath. Based on the data presented in the chart that the ultrasound power of 1.5 W/cm 2 with prolonged exposure produces the opposite effect is increases oil the viscosity of in average on 120%. Presumably, this effect is due to prolonged treatment and decontamination of oil, thus increases the oil density of. It should also be noted that this effect requires further study [13]. Figure 2 shows the viscosity of the processed oil temperature with the addition of various dilutions. As additives a distilled water, a gasoline A-92, and a Surface Active Substance (SAS) O-BISM Clean Technology were used. These studies were conducted to identify the effectiveness of diluents together with low power ultrasound Sonication for 20 min was also carried out. The pressure was 100 kPa. 1 2 3 4 5