Науковий вісник НГУ

Assessment of the contamination degree of gas pipeline branches during mined-out space degasification

• 
• 

User Rating:  / 0

PoorBest 

Details

Category: Content №4 2024

Last Updated on 28 August 2024

Published on 30 November -0001

Hits: 2053

Authors:

S.P.Minieiev, orcid.org/0000-0002-4594-0915, Institute of Geotechnical Mechanics named by N.Poliakov of National Academy of Sciences of Ukraine, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

L.A.Novikov*, orcid.org/0000-0002-1855-5536, Institute of Geotechnical Mechanics named by N.Poliakov of National Academy of Sciences of Ukraine, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

O.S.Yanzhula, orcid.org/0009-0000-8906-0656, “Metinvest Holding” LLC, Pokrovsk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

O.Y.Belousov, orcid.org/0009-0002-8201-8783, “Pershotravenske Mine Department” of “DTEK Pav-lohradvuhillia” PJSC, Pershotravensk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

R.V.Makarenko, orcid.org/0009-0003-5639-570X, “Mine Management named after the “Heroiv Kosmosu” of “DTEK Pavlohradvuhillia” PJSC, Pavlohrad, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2024, (4): 035 - 040

https://doi.org/10.33271/nvngu/2024-4/035

Abstract:

Purpose. To determine the patterns of changes in the gas mixture parameters in the final gas-drainage pipeline section during draining-out of gases from the mined-out space through the gas pipeline branches with impaired throughput capacity.

Methodology. Theoretical studies of gas mixture flows in mine gas-drainage pipelines, as well as the laws of gas dynamics and hydromechanics are used to solve the task set.

Findings. It has been revealed that the methane concentration remains constant in the section of the gas-drainage pipeline, which is located in an uncontrolled ventilation working area. In this case, methane concentration decreases in the gas-drainage pipeline behind the insulating jumper in the zone influenced by the outlet ventilation jet. It has been found that the reduced hydraulic diameter of the gas pipeline contaminated branch leads to an increase in the absolute gas mixture pressure, a decrease in its flow rate and methane yield in the final gas-drainage pipeline section. By solving quadratic regression equations, the ratios linking the hydraulic diameter of the gas pipeline contaminated branch with the gas mixture parameters in the final gas-drainage pipeline section have been obtained.

Originality. A relationship between the hydraulic diameter of the gas pipeline contaminated branch, draining-out the gas mixture from the mined-out space, and the gas mixture parameters in the final gas-drainage pipeline section has been revealed.

Practical value. The obtained ratios for the hydraulic diameter of the gas pipeline contaminated branch make it possible to estimate its throughput capacity and, by the time new branches are set, if necessary, increase the discharge in the gas-drainage pipeline to maintain the necessary degasification efficiency.

Keywords: coal mine, gas-drainage pipeline, gas mixture, gas pipeline branches, contamination

References.

1. Korovyaka, Ye., Astakhov, V., & Manukyan, E. (2014). Perspectives of mine methane extraction in conditions of Donets’k gas-coal basin. Progressive Technologies of Coal, Coalbed Methane, and Ores Mining, 311-316. https://doi.org/10.1201/b17547-54.

2. Koroviaka, Ye., Pinka, J., Tymchenko, S., Rastsvietaiev, V., Astakhov, V., & Dmytruk, O. (2020). Elaborating a scheme for mine methane capturing while developing coal gas seams. Mining of Mineral Deposits, 14(3), 21-27. https://doi.org/10.33271/mining14.03.021.

3. Denysenko, V., & Abakumova, O. (2013). Solutions quality management methane mixture while extracting the degassing mining system. Heoloh Ukrainy, (3), 124-130. https://doi.org/10.53087/ ug.2013.3(43).245587.

4. Мinieiev, S. P., Novikov, L. A., Liutyi, M. O., & Makarenko, R. V. (2022). Impact of degasification pipeline tightness on air inflows and methane concentration. Naukovyi Visnyk Donetskoho Natsionalnoho Tekhnichnoho Universytetu, 1(8)-2(9), 86-93.

5. Kostenko, V. K., Bokij, A. B., Brigida, V. S., & Zinchenko, N. N. (2010). Analysis of the actual state of degasification systems of coal mines in Ukraine. Problemy ekolohii, (1/2), 7-14.

6. Sahith, S., Pedapati, S. R., & Lal, B. (2020). Investigation on Gas Hydrates Formation and Dissociation in Multiphase Gas Dominant Transmission Pipelines. Applied Sciences, 10(15), 5052. https://doi.org/10.3390/app10155052.

7. Bulat, A. F., Мinieiev, S. P., Smolanov, S. N., & Belikov, I. B. (2021). Fires in mine workings. Isolation of emergency sections: monograph. Kharkiv. ISBN 978-617-7305-74-2.

8. Kocherga, V. N., Sytnik, I. V., & Levchinskij, G. S. (2014). Efficiency of integrated degassing of mining areas at Krasnolimanskaya mine. Coal of Ukraine, (11), 26-30.

9. Besschasnyy, O. V., Mukha, O. A., & Puhach, І. І. (2015). The method of transition from computed value of diameter of gas pipeline to standard value. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (4), 85-90.

10. Prytula, D. A., Dudlya, Ye. Ye., & Bokіy, B. V. (2016). Methodology for calculating parameters of the ground degassing gas-transport system for conditions of the a.f. zasyadko mine. Geotechnical Mechanics, 130, 78-91.

11. Shirin, L. N., & Yegorchenko, R. R. (2022). Simulation of the conditions of interaction of the elements of the transport and technological system “mine as pipeline – mining production”. Oil and Gas Power Engineering, (1), 88-96. https://doi.org/10.31471/1993-9868-2022-1(37)-88-96.

12. Shirin, L. N., Bartashevsky, S. E., Denyshchenko, O. V., & Yegor­chen­ko, R. R. (2021). Improving the capacity of mine degassing pipelines. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (6), 72-76. https://doi.org/10.33271/nvngu/2021-6/072.

13. Adeleke, N., Ityokumbul, M. T., & Adewumi, M. (2012). Blockage Detection and Characterization in Natural Gas Pipelines by Transient Pressure-Wave Reflection Analysis. SPE Journal, 18(02), 355-365. https://doi.org/10.2118/160926-PA.

14. Li, H., Zhang, Y., Jia, W., Hu, X., Song, S., & Yang, F. (2024). Reduced capacity of gas pipelines in case of blockages. Gas Science and Engineering, 122, 205187. https://doi.org/10.1016/ j.jgsce.2023.205187.

15. Scola, I. R., Besanҫon, G., & Georges, D. (2018). Blockage location in pipelines using an implicit nonlinear finite-difference model optimization. IFAC-PapersOnLine, 51(24), 935-940. https://doi.org/10.1016/j.ifacol.2018.09.687.

16. Bazaluk, O., Kuchyn, O., Saik, P., Soltabayeva, S., Brui, H., Lozynskyi, V., & Cherniaiev, O. (2023). Impact of ground surface subsidence caused by underground coal mining on natural gas pipeline. Scientific Reports, 13, 19327. https://doi.org/10.1038/s41598-023-46814-5.

17. Shyrin, L., Yehorchenko, R., & Sergienko, М. (2021). Specifics of diagnostics of technical condition of transport and technological system “mining gas pipeline – mine working”. Geoengineering, 6, 28-37. https://doi.org/10.20535/2707-2096.6.2021.241823.

18. Kalisz, P. (2019). Impact of Mining Subsidence on Natural Gas Pipeline Failures. IOP Conference Series: Materials Science and Engineering, 471(4), 1-10. https://doi.org/10.1088/1757-899X/471/4/042024.

19. Mysiuk, R., Mysiuk, I., Yuzevych, V., & Pawlowski, G. (2022). Determining the Place of Depressurization of Underground Pipelines (Gas Pipelines): New Solutions in Industry based on Thermal Image Analysis Using Computer Vision. Path of Science: International Electronic Scientific Journal, 8(10), 1001-1010. https://doi.org/10.22178/pos.86-9.

20. Sopilnyk, L., Skrynkovskyy, R., Lozovan, V., Yuzevych, V., & Pawlowski, G. (2019). Determination of Economic Losses of Gas Transportation Companies from Accidents on Gas Transmission Pipelines. Path of Science, 5(1), 1008-1017. https://doi.org/10.22178/ pos.42-4.

21. Kliszczewicz, B. (2021). Analysis of the Pipelines Functional Safety on the Mining Areas. Periodica Polytechnica Civil Engineering, 65(4), 1126-1133. https://doi.org/10.3311/PPci.18639.

22. Li, M., & Feng, X. (2022). Multisensor data fusion-based structural health monitoring for buried metallic pipelines under complicated stress states. Journal of Civil Structural Health Monitoring, 12, 1509-1521. https://doi.org/10.1007/s13349-022-00609-w.

23. Yan, S., Li, Y., Zhang, S., Song, G., & Zhao, P. (2018). Pipeline Damage Detection Using Piezoceramic Transducers: Numerical Analyses with Experimental Validation. Sensors, 18(7), 2106. https://doi.org/10.3390/s18072106.

24. Bratakh, M. I., Dobrunov, D. Ie., & Shkeir, A. (2017). Influence of the hydraulic condition of the industrial gas pipeline system on the regime of operation of gas production complex facilities. Rozvidka ta rozrobka naftovykh i hazovykh rodovyshch, 4(65), 59-64.

25. On approval of the normative document “Design of coal mine degasification and operation of degasification systems. Rules” No. 304 (2022). Ministry of Energy of Ukraine. Retrieved from https://mev.gov.ua/sites/default/files/field/file/Наказ%20304_0.pdf.

26. Markin, V. A., Jurchenko, B. P., Timofeeva, N. L., & Kocherga, V. N. (2014). Calculation methodology of vacuum pumps operation mode in the presence of resistance at suction and discharge. Sposoby i sredstva sozdanija bezopasnyh i zdorovyh uslovij truda v ugolnyh shahtah, 1(33), 29-37.

27. Ksenych, A. I., Serediuk, M. D., & Vysochanskyi, I. I. (2015). Methodology of hydraulic calculation of low-pressure ring gas networks with concentrated gas withdrawal. Rozvidka ta rozrobka naftovykh i hazovykh rodovyshch, (1), 97-104.

28. Bulat, A. F., Bun’ko, T. V., Jashhenko, I. A., Shishov, M. V., Miroshnichenko, V. V., Alab’ev, V. R., …, & Kokoulin, I. E. (2018). Improving the functioning of coal mines: ventilation, conditioning, degassing, ecology: monograph. Dnipro: Zhurfond. ISBN 978-966-934-163-1.

• < Prev
• Next >