Efficiency of a new ventilation method for a tilted block in an oil mine

The article discusses the mathematical modeling results on the structure of ventilation flows in a tilted block in an oil mine to design and justify a new ventilation method. This method consists in separate ventilation of a work zone (hot zone), heated incessantly by hightemperature rock mass (oil reservoir), and the rest, colder portion of the underground opening. The separation is achieved by means of setting an airtight and insulating partition lengthwise the whole drilling gallery. The heated air is let out not to the common ventilation network of the oil mine but via a vertical ventilation well and to ground surface. The mathematical model describes the 3D stationary turbulence and heat transfer by differential equations with partial derivatives of a semi-empirical model of the type of SST k-. The problem is solved in ANSYS Fluent using the method of double-sided wall (meant for modeling detached air flows on both sides of the partition). The numerical modeling results have fully proved the efficiency and the prospects of the proposed ventilation method: the drilling gallery provides admissible operating environment (microclimate), and heated air which can worsen the microclimate is removed via the ventilation well to ground surface. The generated natural draught contributes to fast removal of heated air, which improves ventilation of the tilted block and the whole oil mine.

Nikolaev А. V., Maksimov P. V., Fajnburg G. Z., Konotop D. А. Efficiency of a new ventilation method for a tilted block in an oil mine. MIAB. Mining Inf. Anal. Bull. 2023;(5):83-98. [In Russ]. DOI: 10.25018/0236_1493_2023_5_0_83.

The study was supported by the Ministry of Science and Higher Education of the Russian Federation within the Perm Global-Level Science and Education Center’s Efficient Subsoil Management Program.

А.V. Nikolaev¹, Dr. Sci. (Eng.), Assistant Professor, e-mail: nikolaev0811@mail.ru, ORCID ID: 0000-0002-4601-5780,
P.V. Maksimov¹, Cand. Sci. (Eng.), Assistant Professor, e-mail: pvmperm@mail.ru, ORCID ID: 0000-0002-3617-5617,
G.Z. Fajnburg¹, Dr. Sci. (Eng.), Professor, e-mail: faynburg@mail.ru, ORCID ID: 0000-0001-8004-1969,
D.А. Konotop¹, Graduate Student, e-mail: konotopda@gmail.com, ORCID ID: 0000-0001-8004-1969,
¹ Perm National Research Polytechnic University, Perm, 614990, Russia.

А.V. Nikolaev, e-mail: nikolaev0811@mail.ru.

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