Abstract
This paper discusses the influence of magnetite on conversion of Ashal’cha heavy oil under the temperature of 200°C. The role of catalyst in in-situ upgrading of heavy oil is directed on the content reduction of high-molecular components such as resins and asphaltenes, as well as their molecular masses. The significant increase (10%) in the content of aromatic fraction and decrease in high-molecular hydrocarbons (8%) is observed. The results of measurements indicate the positive influence of catalyst on the rheology. Magnetite participates in destruction of associated complexes in resins and thereby decreases the viscosity of crude oil. The destruction products increase the content of light hydrocarbons, particularly saturates and aromatics. Investigation of temperature-dependent rheology characteristics revealed significant viscosity reduction in the products of catalytic aquathermolysis.
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