Науковий вісник НГУ

Prediction of transient processes in oil pipelines with the purpose of emergency incident prevention

• 
• 

User Rating:  / 0

PoorBest 

Details

Category: Content №1 2020

Last Updated on 09 April 2020

Published on 10 March 2020

Hits: 3292

Authors:

V.T.Bolonnyi, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0003-3012-1121, Drohobych College of Oil and Gas, Drohobych, Lviv region, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

V.Ya.Grudz, Dr. Sc. (Tech.), Prof., orcid.org/0000-0003-1182-2512, Ivano-Frankivsk National Technical University of Oil and Gas, Ivano-Frankivsk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Ya.V.Grudz, Dr. Sc. (Tech.), Prof., orcid.org/0000-0003-3287-3036, Ivano-Frankivsk National Technical University of Oil and Gas, Ivano-Frankivsk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

V.B.Zapukhliak, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0002-2502-3896, Ivano-Frankivsk National Technical University of Oil and Gas, Ivano-Frankivsk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

T.Ya.Dodyk, orcid.org/0000-0002-8035-7821, JSC Ukrtransnafta, Brody, Lviv region, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2020, (1):118-122
https://doi.org/10.33271/nvngu/2020-1/118

 повний текст / full article

Abstract:

Purpose. Preventing accidents during the operation of complex oil transportation systems under incomplete loading is considered on the basis of the prediction of the nature of transient pressure pulsations caused by a leap-like change in productivity.

Methodology. The main factors affecting the trouble-free operation of the main oil pipelines are analyzed. The classification of pipe wall defects of the main oil pipelines is given. For each of these types of defects the probable indicators of their occurrence are given based on the experience of operation of domestic main oil pipelines.

Findings. In order to carry out analytical studies and to establish the laws of fluctuation of pressure in the main oil pipeline with road withdrawal, a mathematical model based on the equations of motion and mass conservation of the fluid is built, the withdrawal process is described using the Dirac source function. The implementation of the model was carried out using the principles of operational calculus, which allowed us to obtain an analytical form of the nature description of the time-varying pressure oscillations in the characteristic points of the trace, which makes it possible to establish the amplitude-frequency characteristics of the transient process.

Originality. For the first time, it is proposed to use a piecewise linear approximation of the boundary conditions at the point of origin of leakage for their implementation in the analytical solution of the transient process model in a hypothetical main oil pipeline.

Practical value. According to the obtained method, the distribution of relative values of pressure and mass flowrate at characteristic points of the modelled oil pipeline system is constructed. The influence of time-varying errors in determining the pressure in the point of road withdrawal upon the accuracy of the calculations is evaluated. The results obtained are recommended for use in oil pipelines and complex petroleum-based systems operating under incomplete loading (to prevent emergencies)

References.

1. Hryhorskyi, S. Y. (2014). Methods of reducing the negative impact of transient processes caused by pumping unit stops upon the pipeline operating modes. Naukovyi Visnyk Ivano-Frankivskoho Natsionalnoho Tekhnichnoho Universytetu Nafty i Hazu, (2), 128-139.

2. Tarr, B. A., Ladendorf, D. W., Sanchez, D., & Milner, G. M. (2016). Next-Generation Kick Detection During Connections: Influx Detection at Pumps Stop (IDAPS) Software. Society of Petroleum Engineers. SPE Drilling & Completion, 31(04), 1-15. https://doi.org/10.2118/178821-PA.

3. Skuridin, N. N., Tyusenkov, A. S., & Bugay, D. E. (2018). Increasing the safety of main oil pipelines based on optimization of electrochemical protection parameters. Neftianoe khoziaistvo, (08), 92-95. https://doi.org/10.24887/0028-2448-2018-8-92-95.

4. Hrabovskyi, R. S., Lepak, O. M., Mazur, M. P., Fedorovych, I. Y., & Barna, R. A. (2015). Estimation of ruining conditions of long-term operation pipelines. Naukovyi Visnyk Ivano-Frankivskoho Natsionalnoho Tekhnichnoho Universytetu Nafty i Hazu, (1), 46-53.

5. Lisafin, V. P. (2017). Peculiarities of intra-stationary oil pumping at pumping stations of main oil pipeline. International Scientific Journal “Internauka”, 8(30), 49-53.

6. Sobolev, S. A. (2018). Consecutive operation of booster pumping stations in conditions of periodic communication sessions. Oil Industry Journal, (3), 54-57.

7. Grudz, V. Y., Zhdek, A., & Bolonnyi, V. T. (2016). Estimation of flow rate of oil loss as a result of damage of linear part of oil main. Metallurgical and Mining Industry, (6), 75-78.

8. Khalaf, A. M., Al Omari, A. M., Al-Sherif, A. H., Toubar, A., Barsoum, I., & Karrech, A. (2017). Main Oil Line Pump Seal Failure Prevention; Advanced Simulation and Case Study. Society of Petroleum Engineers, November 13, 1-8. https://doi.org/10.2118/188626-MS.

9. Elchalakani, M., Almaskari, F., Alardhi, M., Alkhrdaji, T., & Hill, C. (2015). CFRP Strengthening and Rehabilitation of Corroded Steel Pipelines Under Direct Indentation and Bending. Society of Petroleum Engineers, November 9, 1-15. https://doi.org/10.2118/177876-MS.

10. Levold, E., Restelli, A., Marchionni, L., Vitali, L., Molinari, C., & Ozkan, I. F. (2015). Strength and Deformation Capacity of Corroded Pipe: Laboratory Tests and FEM Analyses. The International Society of Offshore and Polar Engineers, 25(3), 212-220.

11. Vozniak, L. V., Kryvenko, H. M., & Vozniak, M. P. (2017). Analysis of emergency oil losses due to defective holes in industrial pipelines. In International scientific and technical conference “Oil and gas energy – 2017”, (pp. 377-379). Ivano-Frankivsk. 15–19 May 2017. Retrieved from http://elar.nung.edu.ua/bitstream/123456789/6014/1/6614p.pdf.

12. Zapukhliak, V., Poberezhny, L., Maruschak, P., Grudz Jr., V., Stasiuk, R., Brezinová, J., & Guzanová, A. (2019). Mathematical modeling of unsteady gas transmission system operating conditions under insufficient loading. Energies, 12(7), 1-14. EISSN 1996-1073.

13. Salehi, A., Voskov, D. V., & Tchelepi, H. A. (2017). K-Va­lues Based Non-Equilibrium Formulation for Upscaling of Compositional Simulation. In Society of Petroleum Engineers. SPE Reservoir Simulation Conference, 20–22 February, 2017, (pp. 1-20). Montgomery, Texas, USA. https://doi.org/10.2118/182725-MS.

14. Sumskoi, S. I., Sverchkov, A. M., Lisanov, M. V., & Ego­rov, A. F. (2016). Modelling of non-equilibrium flow in the branched pipeline systems. Journal of Physics: Conference, Series 751, 1-8. https://doi.org/10.1088/1742-6596/751/1/012022.

15. Grudz, V. Ya., Grudz Jr., V. Ya., Zapukhlyak, V. B., & Kyzymyshyn, Ya. V. (2018). Non-stationary processes in the gas transmission systems at compressor stations shut-down. Journal of hydrocarbon power engineering, 1(5), 22-28.

• < Prev
• Next >