The Analytical Solutions of Well Treatment Efficiency by the Heat-Produced Binary Aqueous Mixture

About the authors:

Artem I. Varavva, Chief Specialist, Gazprom Neft (Tyumen); artevar@yandex.ru

Alexey V. Tatosov, Dr. Sci. (Phys.-Math.), Professor, Department of Fundamental Mathematics and Mechanics, University of Tyumen; atatosov@utmn.ru

Abstract:

The development simulation method for high viscosity oil production is an actual problem of the contemporary oil industry. Steam well treatments are widely used for heavy hydrocarbons production. However, they require an essential CAPEX for a steam injection; in addition, there is an essential heat loss in a downhole and surface equipment. Using heat-producing binary mixtures as a heat agent solves these problems. The heat loss is negligible due to direct bottomhole heating by binary mixture. The treatments can be conducted by mobile equipment wherefore building of steam-generators and steam-pipes does not require.

Disadvantage of binary mixture method is high cost of used reagents. Therefore, efficiency calculations are required before well treatment. The analytical model of binary mixture well stimulation was developed. The analytical model supports treatment radius, reservoir temperature after stimulation, incremental oil production due to reservoir heating calculation. The developed model can be used to approximate estimation of binary mixture treatment effect and screening suitable wells for treatments.

References:

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