Nowadays, fundamental and applied work on physical-chemical methods for increasing oil recovery and intensification of heavy oil production is being made, both in conjunction with thermal methods and under natural conditions, without thermal treatment. In the Institute of Petroleum Chemistry SB RAS, ‘intelligent’ compositions based on thermotropic inorganic and polymeric sol-forming and gel-forming compositions with adjustable viscosity and density generated in-situ and oil-displacing compositions based on surfactants with controlled viscosity and alkalinity for injection into oil reservoirs in order to increase oil recovery, reduce water cut in production wells and intensify oil production in hard operating conditions.
At the Permian-Carboniferous deposit of high-viscosity oil of the Usinskoye oilfield of LUKOIL-Komi LLC together with the IPC SB RAS and OSK LLC, have been carrying out field tests of complex technologies of steam and physicochemical effects to increase oil recovery and carry out industrial tests of developed technologies, as well as "cold" technologies, without thermal treatment.
In this paper, are presented the results of the pilot industrial tests and industrial application of thermotropic compositions developed for the improvement of oil recovery in the IPC SB RAS. A significant increase in production rate and a decrease in water cut in production have been achieved.
The large-scale industrial application of new complex technologies for increasing oil recovery will allow prolonging the cost-effective exploitation of the fields that are at a late stage of development and involve in the development of a field with hard-to-recover hydrocarbon reserves, including deposits of high-viscosity oils.
References
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