The direction of catalytic aquathermolysis processes involving high-molecular-weight components of heavy oil has been revealed in model experiments, depending on the metal nature and the conditions...

Study was conducted of rocks composition and its extracted moving hydrocarbons from Domanic deposits of Tatarstan, differing in location and occurrence depth from 1379 to 1891 m. The rocks are represented from carbonate-siliceous to pure carbonates with calcite content from 24 to 99%. With increase in calcite content in rocks, the yield of extracts from them decreases. Within Romashkinskoye field, an increase in yield of bitumoids with increase the occurrence depth of the host rocks - from 0.63 to 2.40% was established. Saturated hydrocarbons content of changes from 18 to 39%, of asphaltenes - from 9 to 26%.

This work is devoted to studying the possibility of producing bitumen for road construction by using vacuum residue >420°C of heavy oil of the Ashal'chinskoe field in and natural asphaltite Spiridonovskoe field from Permian deposits in Tatarstan. The effect of natural asphaltite as a solid disperse phase element on the structural and group composition of the residual heavy oil product and its malacometrical qualities (penetration, extensibility, softening point, resistance to aging and adhesion) are revealed. Samples, compounded bitumen production, were carried out by introducing the required amount of the shredded asphaltite to deasphaltizat vacuum residue of heavy oil and heating their mixture to 220°С with vigorous stirring. Changes in the composition and physical and chemical properties of deasphalting the residual heavy oil product, associated with the amount of injected asphaltite, showed the possibility of production of modified bitumen with better adhesion properties that correspond to road bitumen.