Simulation of flooded and unflued jets for improving technology of high-pressure purification of oil and gas field equipment

UDK: 622.276.5.05-5
DOI: 10.24887/0028-2448-2020-12-124-127
Key words: radiobarites, scaling, erosion, nozzles, cavitator, cavitation generator, hydrodynamic cleaning
Authors: M.V. Оmelyanyuk (Kuban State Technological University, RF, Armavir), I.A. Pakhlyan (Kuban State Technological University, RF, Armavir)

The need to develop and apply effective cleaning technologies and modern energy-saving equipment that implements them is an urgent task for many oil and gas producing and service organizations. Today, there is an increase in the role of modern techniques and software designed for the design and selection of equipment, with the ability to simulate work processes. The use of mathematical models makes it possible to develop the most optimal design without making prototypes. Numerical methods have revealed the main regularities of submerged and non-submerged jet outflows for the destruction of deposits with high adhesion from the surface of oil and gas field equipment. Numerical simulation of the flow of multiphase flows was carried out in a software package for solving problems of computational fluid dynamics by the finite element method.

The paper describes the applied hydrodynamic calculation models, the features of mesh construction, the choice of the solver parameters. A number of mathematical experiments were carried out: flow modeling, as well as comparison of flows for three types of nozzles: conical converging with a cylindrical outlet; cylindrical and conical divergent. The obtained results were verified by practical testing in field conditions. An improved high-pressure cleaning technology has been introduced at oil and gas and service enterprises of the Russian Federation and Ukraine. The results were realized in the design of various installations for hydrodynamic cavitation cleaning of the working bodies of the ESP and tubing from salt deposits with increased radioactivity; Tubing from asphalt-resins-paraffin deposits with high adhesion and strength; hydrodynamic purification units, gas treatment facilities of gas producing enterprises and underground gas storage facilities.

References

1. Kulagina T.A., Kulagin V.A., Moskvichev V.V., Popkov V.A., The use of cavitation technology in the treatment of spent nuclear fuel processes (In Russ.), Ekologiya i promyshlennost' Rossii = Ecology and Industry of Russia, 2016, V. 20 (10), pp. 4–10.

2. Omel'yanyuk M.V., Decontamination of oilfield equipment from natural radionuclides (In Russ.), Ekologiya i promyshlennost' Rossii, 2013, no. 2, pp. 1–9.

3. Omel'yanyuk M.V., Pakhlyan I.A., Developing and implementing the technology for cavitation-wave cleaning of radiation contaminated oilfield equipment (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2019, no. 10, pp. 117–121.

4. Brennen C.E., Fundamentals of multiphase flows, California: California Institute of Technology, 2005.

5. Davis M.R., Fungtamasan B., Two-phase flow through pipe branch junctions, International Journal of Multiphase Flow, 1990, V. 15, no. 5, pp. 799–817.

6. Gao F., Wang H., Wang H., Comparison of different turbulence models in simulating unsteady flow, Procedia Engineering, 2017, V. 205, pp. 3970-3977, URL: https://doi.org/10.1016/j.proeng.2017.09.856

7. Launder B.E., Spalding D.B., Lectures in mathematical models of turbulence, London: Academic Press, 1972.

8. Stenmark E., On multiphase flow models in ANSYS CFD software: Master’s thesis in applied mechanics, Chalmers University of Technology, 2013.

9. Tijsseling A.S, Lavooij C.S.W., Fluid-structure interaction in liquid filled piping systems, Journal of Fluids and Structures, 1991, pp. 573–595.

10. Kothe D.B., Rider W.J., Mosso J., Brock J.S., Volume tracking of interfaces having surface tension in two and three dimensions, AIAA J., 1996, pp. 96–0859.

11. Egorychev V.S., Shabliy L.S., Kudinov I.V., Chislennoe modelirovanie dvukhfaznykh potokov v forsunke kamery ZhRD (Numerical modeling of two-phase flows in a liquid-propellant engine chamber nozzle), Moscow: Publ. of Ministry of Education and Science of the Russian Federation, 2013.

12.  Rodionov V.P., Modelirovanie kavitatsionno-erozionnykh protsessov, vozbuzhdaemykh gidrodinamicheskimi struynymi izluchatelyami (Modelirovanie kavitatsionno-erozionnykh protsessov, vozbuzhdaemykh gidrodinamicheskimi struynymi izluchatelyami): thesis of doctor of technical science, St. Petersburg, 2001.

13. Omel'yanyuk M.V., Razrabotka tekhnologii gidrodinamicheskoy kavitatsionnoy ochistki trub ot otlozheniy pri remonte skvazhin (Development of technology for hydrodynamic cavitation pipe cleaning from deposits during well repair): thesis of candidate of technical science, Krasnodar, 2004.

14. Ukolov A.I., Rodionov V.P., Verification of numerical simulation results and experimental data of the cavitation influence on hydrodynamic characteristics of a jet flow (In Russ.), Vestnik MGTU im. N.E. Baumana. Ser. Estestvennye nauki, 2018, no. 4, pp. 102–114, https://doi.org/10.18698/1812-3368-2018-4-102-114.

The need to develop and apply effective cleaning technologies and modern energy-saving equipment that implements them is an urgent task for many oil and gas producing and service organizations. Today, there is an increase in the role of modern techniques and software designed for the design and selection of equipment, with the ability to simulate work processes. The use of mathematical models makes it possible to develop the most optimal design without making prototypes. Numerical methods have revealed the main regularities of submerged and non-submerged jet outflows for the destruction of deposits with high adhesion from the surface of oil and gas field equipment. Numerical simulation of the flow of multiphase flows was carried out in a software package for solving problems of computational fluid dynamics by the finite element method.

The paper describes the applied hydrodynamic calculation models, the features of mesh construction, the choice of the solver parameters. A number of mathematical experiments were carried out: flow modeling, as well as comparison of flows for three types of nozzles: conical converging with a cylindrical outlet; cylindrical and conical divergent. The obtained results were verified by practical testing in field conditions. An improved high-pressure cleaning technology has been introduced at oil and gas and service enterprises of the Russian Federation and Ukraine. The results were realized in the design of various installations for hydrodynamic cavitation cleaning of the working bodies of the ESP and tubing from salt deposits with increased radioactivity; Tubing from asphalt-resins-paraffin deposits with high adhesion and strength; hydrodynamic purification units, gas treatment facilities of gas producing enterprises and underground gas storage facilities.

References

1. Kulagina T.A., Kulagin V.A., Moskvichev V.V., Popkov V.A., The use of cavitation technology in the treatment of spent nuclear fuel processes (In Russ.), Ekologiya i promyshlennost' Rossii = Ecology and Industry of Russia, 2016, V. 20 (10), pp. 4–10.

2. Omel'yanyuk M.V., Decontamination of oilfield equipment from natural radionuclides (In Russ.), Ekologiya i promyshlennost' Rossii, 2013, no. 2, pp. 1–9.

3. Omel'yanyuk M.V., Pakhlyan I.A., Developing and implementing the technology for cavitation-wave cleaning of radiation contaminated oilfield equipment (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2019, no. 10, pp. 117–121.

4. Brennen C.E., Fundamentals of multiphase flows, California: California Institute of Technology, 2005.

5. Davis M.R., Fungtamasan B., Two-phase flow through pipe branch junctions, International Journal of Multiphase Flow, 1990, V. 15, no. 5, pp. 799–817.

6. Gao F., Wang H., Wang H., Comparison of different turbulence models in simulating unsteady flow, Procedia Engineering, 2017, V. 205, pp. 3970-3977, URL: https://doi.org/10.1016/j.proeng.2017.09.856

7. Launder B.E., Spalding D.B., Lectures in mathematical models of turbulence, London: Academic Press, 1972.

8. Stenmark E., On multiphase flow models in ANSYS CFD software: Master’s thesis in applied mechanics, Chalmers University of Technology, 2013.

9. Tijsseling A.S, Lavooij C.S.W., Fluid-structure interaction in liquid filled piping systems, Journal of Fluids and Structures, 1991, pp. 573–595.

10. Kothe D.B., Rider W.J., Mosso J., Brock J.S., Volume tracking of interfaces having surface tension in two and three dimensions, AIAA J., 1996, pp. 96–0859.

11. Egorychev V.S., Shabliy L.S., Kudinov I.V., Chislennoe modelirovanie dvukhfaznykh potokov v forsunke kamery ZhRD (Numerical modeling of two-phase flows in a liquid-propellant engine chamber nozzle), Moscow: Publ. of Ministry of Education and Science of the Russian Federation, 2013.

12.  Rodionov V.P., Modelirovanie kavitatsionno-erozionnykh protsessov, vozbuzhdaemykh gidrodinamicheskimi struynymi izluchatelyami (Modelirovanie kavitatsionno-erozionnykh protsessov, vozbuzhdaemykh gidrodinamicheskimi struynymi izluchatelyami): thesis of doctor of technical science, St. Petersburg, 2001.

13. Omel'yanyuk M.V., Razrabotka tekhnologii gidrodinamicheskoy kavitatsionnoy ochistki trub ot otlozheniy pri remonte skvazhin (Development of technology for hydrodynamic cavitation pipe cleaning from deposits during well repair): thesis of candidate of technical science, Krasnodar, 2004.

14. Ukolov A.I., Rodionov V.P., Verification of numerical simulation results and experimental data of the cavitation influence on hydrodynamic characteristics of a jet flow (In Russ.), Vestnik MGTU im. N.E. Baumana. Ser. Estestvennye nauki, 2018, no. 4, pp. 102–114, https://doi.org/10.18698/1812-3368-2018-4-102-114.



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