«Automation and Informatization of the fuel and energy complex»

Mathematical models for calculating the material balance of gas

UDC: 681.518.2
DOI: 10.33285/2782-604X-2023-9(602)-15-19

Authors:

¹ National University of Oil and Gas "Gubkin University", Moscow, Russia

Keywords: natural gas, main pipeline, material balance of gas, commercial gas metering, unaccounted gas, imbalance of gas

Annotation:

The methods which are applied for solving the problem of gas material balance calculation have been analyzed. In general, the balance means the equality of gas supply and consumption. The balance equation should consider the unavoidable imbalance caused by sensors and measurements errors, component composition instability and other reasons. Based on the analysis of the methods used in the world, it was concluded that the principles of calculating unaccounted gas are basically the same, but each uses its own calculation formula. Consequently, the standards of each individual enterprise regulate the methods for calculating the material balance of gas. An analysis of the probable causes of imbalances possible occurrence in the system is presented, a method for gas balance calculation is proposed. It is shown that one of the main causes of the non-accounted gas occurrence is the inevitable mistake when calculating the material balance.

Bibliography:

1. Unaccounted for gas in natural gas transmission networks: Prediction model and analysis of the solutions / F. Arpino, M. Dell’Isola, G. Ficco, P. Vigo // J. of Natural Gas Science and Engineering. – 2014. – Vol. 17. – P. 58–70. – DOI: 10.1016/j.jngse.2014.01.003
2. Research Progress on Calculation and Control of Unaccounted for Gas of Natural Gas Pipeline Network / Huiyu Chen, Shanshan Li, Lili Zuo, Wanjun Li // J. of Physics: Conf. Series. – 2021. – Vol. 2076. 7th Int. Conf. on Energy Technology and Materials Science (ICETMS 2021), Sept. 27–29, 2021, Zhoushan, China. – DOI: 10.1088/1742-6596/2076/1/012020
3. Organizatsiya, planirovanie i upravlenie na predpriyatiyakh transporta i khraneniya nefti i gaza / A.D. Brents, V.E. Tishchenko, A.V. Vlasov [i dr.]. – M.: Nedra, 1980. – 360 s.
4. Imitatsionnaya model' identifikatsii prichin i istochnikov debalansa prirodnogo gaza v truboprovodnoy gazotransportnoy sisteme / A.V. Kostandyan, S.S. Gorbunov, A.F. Egorov, V.V. Sidorov // Avtomatizatsiya i informatizatsiya TEK. – 2022. – № 3(584). – S. 37–48. – DOI: 10.33285/2782-604X-2022-3(584)-37-48
5. Tukhbatullin F.G., Semeychenkov D.S., Tukhbatullin T.F. Prognozirovanie velichiny razbalansa prirodnogo gaza // Tr. RGU nefti i gaza im. I.M. Gubkina. – 2017. – № 3(288). – S. 63–69.
6. Tukhbatullin F.G., Semeychenkov D.S. Statisticheskie metody analiza prichin razbalansa prirodnogo gaza i prognozirovaniya ego velichiny v sisteme gazoraspredeleniya // Truboprovod. transp.: teoriya i praktika. – 2017. – № 2(60). – S. 8–13.