Technology for removing salt and paraffin sediments in open pipelines of complex configuration

UDK: 622.692.4.004.55
DOI: 10.24887/0028-2448-2022-4-83-85
Key words: pulsed arc electrohydraulic discharge (PAED), shock wave, oil pipeline cleaning, pipeline cleaning, solid salt deposits, asphaltene-resin-paraffin deposits
Authors: V.V. Lykov (Grozny State Oil Technical University named after acad. M.D. Millionshchikov, RF, Grozny)

Among the physical methods for removing and preventing the formation of solid salt (SSD) and asphalten-resin-paraffin (ARPD) deposits, a special place occupy technologies based on an electro-hydraulic blow, which occurs during electrical discharge in the liquid and initiates powerful acoustic shock waves - the electro-hydraulic effect. Despite the obvious energy benefits, this method has not found wide use due to a number of limitations. The article discusses the technology of the destruction of SSD and ARPD in an open pipeline of any configuration and length with the help of electro-hydraulic discharge, free of such limitations. When this technology is applied, the destruction of salt and paraffin sediments inside the pipe occurs as a result of the impact of the shock wave on its outer wall. The shock wave is created by the electro-hydraulic discharge outside the pipe in a special tube with water, which is placed on any section of the pipeline and promoted as it is purified. The technology can be used to eliminate any deposits (SSD, ARPD, hydrates, ice, cement stone, and soft sediments). It is shown that the technology allows you to remove the SSD, ARPD in any open pipelines with a diameter of 40-600 mm with an unlimited number of turns, vertical or horizontal position, the presence of couplings, valves, valves and other fittings of the pipeline; ensure the safety of the inner and outer surfaces of the pipes, including special coatings; remove SSD in polymer pipes without damaging them; clean pipes with any (even 100%) degree of overlapping by postponement of the pipeline cross-section, etc. Examples of technology application  for cleaning various types of pipes are given.

References

1. Persiyantsev M.N., Dobycha nefti v oslozhnennykh usloviyakh (Oil production in complicated conditions), Moscow: Nedra-Biznestsentr Publ., 2000, 653 p.

2. Puchina G.R., Ragulin V.V., Telin A.G. et al., Modern practice of salt deposition preventing and removing (In Russ.), Neftegazovoe delo, 2020, V. 18, no. 2, pp. 72–80, DOI: 10.17122/ngdelo-2020-2-72-80

3. Baranov A.N., Kutovenko M.V., Yanyushkin S.A., Korenyugin K.V., Electromechanical cleaning of solution pipelines at the Bratsk aluminum smelter (In Russ.), Sovremennye tekhnologii i avtomatizatsii v mashinostroenii, 2017, no. 16, pp. 61–63.

4. Ishchenko Zh.N., Zavoda V.P., Todyshev V.Ya., Degtev Yu.N., Destruction of hard deposits in the process of cleaning pipes with electric discharges (In Russ.), Elektronnaya obrabotka materialov, 2005, no. 2, pp. 81–89.

5. Yutkin L.A., Elektrogidravlicheskiy effekt i ego primenenie v promyshlennosti (Electro-hydraulic effect and its application in industry), Leningrad: Mashinostroenie Publ., 1986, 254 p.

6. URL: http://www.zevs-irp.ru.

7. Sokolov V.Yu. Saitbattalov R.R., Avtomatizirovannyy energeticheskiy kompleks po ochistke truboprovoda s ispol'zovaniem elektrogidravlicheskogo effekt (Automated energy complex for pipeline cleaning using electro-hydraulic effect), Collected papers “Universitetskiy kompleks kak regional'nyy tsentr obrazovaniya, nauki i kul'tury” (University complex as a regional center of education, science and culture), Proceedings of All-Russian Scientific and Methodological Conference, Orenburg, 01-03 February 2017, Orenburg: Publ. of OSU, 2017, pp. 528-531.

8. Application for invention no. 2021127727; filing date 09/21/2021.

9. URL: https://gstou.ru/structure/research-centers-and-laboratories/nilit.php, https://youtu.be/tvPe4hdVArs

Among the physical methods for removing and preventing the formation of solid salt (SSD) and asphalten-resin-paraffin (ARPD) deposits, a special place occupy technologies based on an electro-hydraulic blow, which occurs during electrical discharge in the liquid and initiates powerful acoustic shock waves - the electro-hydraulic effect. Despite the obvious energy benefits, this method has not found wide use due to a number of limitations. The article discusses the technology of the destruction of SSD and ARPD in an open pipeline of any configuration and length with the help of electro-hydraulic discharge, free of such limitations. When this technology is applied, the destruction of salt and paraffin sediments inside the pipe occurs as a result of the impact of the shock wave on its outer wall. The shock wave is created by the electro-hydraulic discharge outside the pipe in a special tube with water, which is placed on any section of the pipeline and promoted as it is purified. The technology can be used to eliminate any deposits (SSD, ARPD, hydrates, ice, cement stone, and soft sediments). It is shown that the technology allows you to remove the SSD, ARPD in any open pipelines with a diameter of 40-600 mm with an unlimited number of turns, vertical or horizontal position, the presence of couplings, valves, valves and other fittings of the pipeline; ensure the safety of the inner and outer surfaces of the pipes, including special coatings; remove SSD in polymer pipes without damaging them; clean pipes with any (even 100%) degree of overlapping by postponement of the pipeline cross-section, etc. Examples of technology application  for cleaning various types of pipes are given.

References

1. Persiyantsev M.N., Dobycha nefti v oslozhnennykh usloviyakh (Oil production in complicated conditions), Moscow: Nedra-Biznestsentr Publ., 2000, 653 p.

2. Puchina G.R., Ragulin V.V., Telin A.G. et al., Modern practice of salt deposition preventing and removing (In Russ.), Neftegazovoe delo, 2020, V. 18, no. 2, pp. 72–80, DOI: 10.17122/ngdelo-2020-2-72-80

3. Baranov A.N., Kutovenko M.V., Yanyushkin S.A., Korenyugin K.V., Electromechanical cleaning of solution pipelines at the Bratsk aluminum smelter (In Russ.), Sovremennye tekhnologii i avtomatizatsii v mashinostroenii, 2017, no. 16, pp. 61–63.

4. Ishchenko Zh.N., Zavoda V.P., Todyshev V.Ya., Degtev Yu.N., Destruction of hard deposits in the process of cleaning pipes with electric discharges (In Russ.), Elektronnaya obrabotka materialov, 2005, no. 2, pp. 81–89.

5. Yutkin L.A., Elektrogidravlicheskiy effekt i ego primenenie v promyshlennosti (Electro-hydraulic effect and its application in industry), Leningrad: Mashinostroenie Publ., 1986, 254 p.

6. URL: http://www.zevs-irp.ru.

7. Sokolov V.Yu. Saitbattalov R.R., Avtomatizirovannyy energeticheskiy kompleks po ochistke truboprovoda s ispol'zovaniem elektrogidravlicheskogo effekt (Automated energy complex for pipeline cleaning using electro-hydraulic effect), Collected papers “Universitetskiy kompleks kak regional'nyy tsentr obrazovaniya, nauki i kul'tury” (University complex as a regional center of education, science and culture), Proceedings of All-Russian Scientific and Methodological Conference, Orenburg, 01-03 February 2017, Orenburg: Publ. of OSU, 2017, pp. 528-531.

8. Application for invention no. 2021127727; filing date 09/21/2021.

9. URL: https://gstou.ru/structure/research-centers-and-laboratories/nilit.php, https://youtu.be/tvPe4hdVArs



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