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Территория «НЕФТЕГАЗ». 2017; : 54-58

Теоретическая оценка влияния электрического контакта трубопровода с защитными заземлениями электроустановок на распределение тока катодной защиты в подземном трубопроводе

Гуськов С. С., Агиней Р. В., Исупова Е. В.

Аннотация

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Список литературы

1. Glotov I.V., Aginei R.V., Yushmanov V.N. Experimental Determination of Mathematical Models for Optimization of Underground Oil and Gas Pipelines Protection by Several Cathodic Stations. Zashchita okruzhayushchey sredy v neftegazovom komplekse = Environmental Protection in Oil and Gas Complex, 2009, No. 8, P. 18–22. (In Russian)

2. Korotyaev A.G. Influence of Grounding Loops on the Protection Level and the Resource of the Electrochemical Protection System of the Area Objects. Korroziya “Territorii “NEFTEGAS” = Corrosion of the Oil and Gas Territory, 2016, No. 3 (35), P. 60–62. (In Russian)

3. Prokhorov A.A, Radchenko V.V., Zhukov R.A. Experience in Designing Corrosion Protection of Underground Pipelines at ORS Sites. Nauka i tekhnologii truboprovodnogo transporta nefti i nefteproduktov = Science and Technologies of Pipeline Transport of Oil and Oil Products, 2017, Vol. 7, No. 2, P. 82–86. (In Russian)

4. Selina L.A., Teleten I.G. Designing of Electrochemical Protection Means at the Bovanenkovo-Ukhta Main Pipelines System. Results of Construction and Commissioning Work. Korroziya “Territorii “NEFTEGAS” = Corrosion of the Oil and Gas Territory, 2016, No. 3 (25), P. 76–79. (In Russian)

5. Teleten I.G., Patryshev N.Y. Features of Construction of the Electrochemical Protection System in the Presence of Earthed Structures. Korroziya “Territorii “NEFTEGAS” = Corrosion of the Oil and Gas Territory, 2014, No. 1 (27), P. 76–77. (In Russian)

6. Aginei R.V, Isupova E.V Research of the Influence of Groundings of Electrical Installations on the Efficiency of Electrochemical Protection of Underground Pipelines at the Territory of Industrial Sites. Truboprovodnyy transport: teoriya i praktika = Pipeline Transport: Theory and Practice, 2017, No. 3 (61), P. 16–20. (In Russian)

7. Zubkov A.A., Gus'kov S.S., Aginey R.V. Mathematical Model of the Geomagnetic-Induced Current Formation in an Extended Isolated Pipeline. Truboprovodnyy transport: teoriya i praktika = Pipeline Transport: Theory and Practice, 2015, No. 3, P. 16–19. (In Russian)

8. State Standard GOST R 51164-98 Steel Main Pipelines. General Requirements for Corrosion Protection. Moscow, Gosstandart of Russia, 1998, 46 p. (In Russian)

9. Tkachenko V.N. Electrochemical Protection of Pipeline Networks. Moscow, Stroyizdat, 2004, 320 p. (In Russian)

Territorija “NEFTEGAS” [Oil and Gas Territory]. 2017; : 54-58

Theoretical Assessment of the Electrical Contact Effect of the Pipeline with the Groundings of Electrical Equipment on the Cathodic Current Distribution in the Underground Pipeline

Gus'kov S. S., Aginey R. V., Isupova E. V.

Abstract

Sometimes, the electrical contact between underground pipelines and grounding system of electrical equipment occurs on the territory of industrial sites (compressor stations, gas distribution stations, etc.). The shielding effect of the cathodic protection current by groundings is arising. It leads to a decrease in the protective efficiency of underground pipelines against corrosion, accelerated destruction of the anodes, an increase in the current consumption of the cathodic protection, and creates additional obstacles for its equal distribution. It is necessary to investigate the effects of groundings on the current distribution in the underground pipeline as well as on the potential difference between the pipeline and the ground to develop recommendations for minimizing the negative effect of shielding the current of cathodic protection by groundings. This article presents the results of software development that allows calculating the current distribution in the pipeline and the potential difference between the pipeline and the ground considering the fact of galvanic connection groundings to the pipeline. The examples of calculating the current distribution in the underground pipeline and the potential difference between the pipeline and the ground in the presence of a cathodic protection station and electrical contact of the pipeline with a grounding were analyzed. The effect of the mutual influence of the cathodic protection station and grounding on the distribution along the pipeline of the cathodic protection current and the potential difference between the pipeline and the ground was studied. The influence of the characteristics of the cathodic protection station, groundings and ground on the features of the shielding effect of the cathodic protection current by groundings was analysed.
References

1. Glotov I.V., Aginei R.V., Yushmanov V.N. Experimental Determination of Mathematical Models for Optimization of Underground Oil and Gas Pipelines Protection by Several Cathodic Stations. Zashchita okruzhayushchey sredy v neftegazovom komplekse = Environmental Protection in Oil and Gas Complex, 2009, No. 8, P. 18–22. (In Russian)

2. Korotyaev A.G. Influence of Grounding Loops on the Protection Level and the Resource of the Electrochemical Protection System of the Area Objects. Korroziya “Territorii “NEFTEGAS” = Corrosion of the Oil and Gas Territory, 2016, No. 3 (35), P. 60–62. (In Russian)

3. Prokhorov A.A, Radchenko V.V., Zhukov R.A. Experience in Designing Corrosion Protection of Underground Pipelines at ORS Sites. Nauka i tekhnologii truboprovodnogo transporta nefti i nefteproduktov = Science and Technologies of Pipeline Transport of Oil and Oil Products, 2017, Vol. 7, No. 2, P. 82–86. (In Russian)

4. Selina L.A., Teleten I.G. Designing of Electrochemical Protection Means at the Bovanenkovo-Ukhta Main Pipelines System. Results of Construction and Commissioning Work. Korroziya “Territorii “NEFTEGAS” = Corrosion of the Oil and Gas Territory, 2016, No. 3 (25), P. 76–79. (In Russian)

5. Teleten I.G., Patryshev N.Y. Features of Construction of the Electrochemical Protection System in the Presence of Earthed Structures. Korroziya “Territorii “NEFTEGAS” = Corrosion of the Oil and Gas Territory, 2014, No. 1 (27), P. 76–77. (In Russian)

6. Aginei R.V, Isupova E.V Research of the Influence of Groundings of Electrical Installations on the Efficiency of Electrochemical Protection of Underground Pipelines at the Territory of Industrial Sites. Truboprovodnyy transport: teoriya i praktika = Pipeline Transport: Theory and Practice, 2017, No. 3 (61), P. 16–20. (In Russian)

7. Zubkov A.A., Gus'kov S.S., Aginey R.V. Mathematical Model of the Geomagnetic-Induced Current Formation in an Extended Isolated Pipeline. Truboprovodnyy transport: teoriya i praktika = Pipeline Transport: Theory and Practice, 2015, No. 3, P. 16–19. (In Russian)

8. State Standard GOST R 51164-98 Steel Main Pipelines. General Requirements for Corrosion Protection. Moscow, Gosstandart of Russia, 1998, 46 p. (In Russian)

9. Tkachenko V.N. Electrochemical Protection of Pipeline Networks. Moscow, Stroyizdat, 2004, 320 p. (In Russian)