SOLVENT SELECTION BASED ON THE STUDY OF THE RHEOLOGICAL PROPERTIES OF OIL

• Main Authors: ROSCHIN P.V., ZINOVIEV A.M., STRUCHKOV I.A., KALININ E.S., DZIWORNU C.K.
• Format: Text
• Language: unknown
• Published: Индивидуальный предприниматель Соколова Марина Владимировна 2015
• Subjects: ТЯЖЕЛАЯ НЕФТЬ,РЕАГЕНТ-РАСТВОРИТЕЛЬ,АСФАЛЬТОСМОЛОПАРАФИНОВЫЕ ВЕЩЕСТВА,HEAVY OIL,THE REAGENT-SOLVENT,ASPHALTENE-RESIN-PARAFFIN SUBSTANCES; Arkhangelsk
• Online Access: http://cyberleninka.ru/article/n/solvent-selection-based-on-the-study-of-the-rheological-properties-of-oil; http://cyberleninka.ru/article_covers/15839181.png

The purpose of this paper is definition of influence of various reagents on rheological properties of heavy oil, and also development of effective reagent-solvent on the basis of the conducted experimental studies. In recent years, there is a tendency of the active bringing into production of heavy oil fields. According to various sources, there are 8 billion tons of hydrocarbon reserves with a viscosity of more than 30 mPa·s in the Russian Federation. More than 95% of the remaining reserves are concentrated in Arkhangelsk, Samara, Tyumen and Perm regions, and in the Republic of Bashkortostan, Komi, Republic of Tatarstan and Udmurtia. In all, about 350 million tons of the total recoverable oil in the Russian Federation is found in the Samara Region, of which about a quarter (approximately 85 million. tons) accounts for deposits of oil with a viscosity of more than 30 mPa·s. As a result, there is a particular interest in the study of intensification methods for the production of these oils. Investigations were conducted on the rotational viscometer the Rheotest RN 4.1 for the range of temperatures of 90-15 °C, thus oil viscosity, shear stress and shear rate preand postadding of the produced reagent to oil were measured. Results of this research showed that considered heavy oil of the Samara region show thixotropic properties even at high temperatures (70 °C). The produced reagent-solvent, acting as a dispersion agent of asphaltene particles, can be used for increase of oil well operational efficiency, based on reduction of oil viscosity both in tubing and gathering system.