Upgrading of Ashal’cha heavy oil in the presence of solvents under steam treatment

На русском Исследование облагораживания сверхвязкой нефти Ашальчинского месторождения с применением растворителей при паротепловом воздействии
2 (75) май 2020
2 (75) may 2020
Indad Sh.S. Salih mc-gross@mail.ru Institute of Geology and Petroleum technologies, Kazan (Volga region) Federal University Kazan
Azat K. Ishimbaev Institute of Geology and Petroleum technologies, Kazan (Volga region) Federal University Kazan
Irek I. Mukhamatdinov Institute of Geology and Petroleum technologies, Kazan (Volga region) Federal University Kazan
Alexey V. Vakhin Institute of Geology and Petroleum technologies, Kazan (Volga region) Federal University Kazan
DOI: 10.24411/2076-6785-2020-10075

Abstract
The article presents the influence of various solvents on the upgrading of Ashal’cha heavy oil under steam treatment. A comparison study was carried out. Changes in the composition of oil after the combined influence of steam and solvent were observed, which indicates a content reduction of high-molecular heteroatom compounds. Temperature dependence of oil viscosity characteristics with the use of individual solvents were revealed. Moreover, the changes in the elemental composition of oil after steam treatment in the presence of solvents are shown.

Materials and methods
Ashal’cha heavy oil of the Republic of Tatarstan, solvents, SARA analysis, viscometry, elemental analyses.

Keywords
heavy oil, aquatermolysis, solvents, rheology, elemental composition
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