Development and implementation of technology to enhance the performance of high-viscosity oil treatment in PJSC Tatneft

Il’as I. Urazov ”TatNIPIneft” , PJSC “Tatneft” Bugulma, Russian Federation urazov@tatnipi.ru
Faat R. Gubaidulin ”TatNIPIneft” , PJSC “Tatneft” Bugulma, Russian Federation gfr@tatnipi.ru
Sergey N. Sudykin ”TatNIPIneft” , PJSC “Tatneft” Bugulma, Russian Federation sudykinsn@tatnipi.ru
Radik R. Mukhametgaleev PJSC “Tatneft “ Almetyevsk, Russian Federation muhametgaleev@tatneft.ru
Emulsions of highly viscous oil produced in Tatneft Company exhibit high resistant to breakdown. This is attributable to high oil viscosity, insignificant density differences between oil and produced water, and substantial content of resins and asphaltenes. For extra-viscous oil this is associated with the presence of multiple finely-dispersed water droplets.Conventional technologies and standard equipment fail to process such emulsions to oil commercial standards. Knowledge of how hydrodynamic effects of turbulent flow can alter emulsion dispersion characteristics and understanding of the efficiency of such processes at the surface of contact elements enabled development of the technology to enhance oil-water separation performance.
Materials and methods
Studies of oil dehydration process resulted in the development of the device to enhance separation performance for high-viscosity oil emulsions. Pilot testing.
Results
To improve the efficiency of dehydration and desalting of high-viscosity emulsions TatNIPIneft Institute has developed, tested and implemented oil treatment enhancing devices.
Сonclusions
Technologies designed for enhancement of extra-viscous oil dehydration and carboniferous oil desalting enabled reduction of oil treatment CAPEX and OPEX, improved reliability of operations and ensured recovery of marketable oil corresponding to the 1st Group of Quality.
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high-viscosity oil oil dehydration and desalting coalescence oil treatment enhancing devicesReferences