Improvement of the flow part of diagonal stages using multiphase coefficients

Refined coefficients and ratios of geometric dimensions are proposed that make it possible to develop axial, diagonal and axial-diagonal multiphase high efficiency stages with high pressure when operating on water and a gas-liquid mixture. It is shown that the formulas for the local static head coefficient, local multiphase coefficient of rotation speed used in calculating the flow part of multiphase stages include parameters obtained when operating on liquid without gas. Based on these coefficients, a method has been developed for calculating the geometry of the flow part of multiphase stages and evaluating the efficiency of pumps in a multiphase mixture, taking into account physico-chemical properties. The head characteristics of the new diagonal stages are given in comparison with characteristics of typical axial-diagonal and axial multiphase stages when operating on water and gas-liquid mixtures. A table with parameters defining the operation of multiphase stages on a gas-liquid mixture is proposed, which can be used in the development of new and evaluation of the effectiveness of existing pumps. It is shown that in terms of head and efficiency, the developed diagonal pumps are superior to the axial-diagonal and axial pumps when operating on water and a gas-liquid mixture. Examples of the application of a local static head coefficient and a local multiphase coefficient of rotation speed for evaluating the operation of multiphase stages on a gas-liquid mixture are given.
EDN: PGYCRC, https://elibrary/pgycrc

References

[1] Drozdov A.N. Tekhnologiya i tekhnika dobychi nefti pogruzhnymi nasosami v oslozhnennykh usloviyakh [Technology and technique of oil production by submergible pumps in the complicated conditions]. Moscow, MAKS Press Publ., 2008. 309 p. (In Russ.).

[2] Dengaev A.V. Povyshenie effektivnosti ekspluatatsii skvazhin pogruzhnymi tsentrobezhnymi nasosami pri otkachke gazozhidkostnykh smesey [Increase of well operation efficiency by submersible centrifugal pumps during pumping of gas-liquid mixtures]. Moscow, RGU nefti i gaza im. I.M. Gubkina Publ., 2005. 212 p. (In Russ.).

[3] Ageev Sh.R., Grigoryan E.E., Makienko G.P. Rossiyskie ustanovki lopastnykh nasosov dlya dobychi nefti i ikh primenenie [Russian installations of vane pumps for oil production and their application]. Perm, Press-Master Publ., 2007. 645 p. (In Russ.).

[4] Vakhitova R.I., Saracheva D.A., Urazakov D.R. et al. Povyshenie effektivnosti raboty pogruzhnykh elektrotsentrobezhnykh ustanovok pri dobyche nefti s vysokim gazosoderzhaniem [Improving the efficiency of submersible electric centrifugal units in oil production with high gas content.]. Almetyevsk, AGNI Publ., 2019. 104 p. (In Russ.).

[5] Mishchenko I.T. Skvazhinnaya dobycha nefti [Borehole oil production]. Moscow, Neft i gaz Publ., 2003. 816 p. (In Russ.).

[6] Trulev A.V., Loginov V.F., Gorbunov S.I. et al. Razrabotka i opytno-promyshlennoe vnedrenie pogruzhnykh UETsN kontseptualno novoy konstruktsii dlya ekspluatatsii malodebitnykh skvazhin s vysokim soderzhaniem svobodnogo gaza i mekhanicheskikh primesey [Development and test output introduction of ESP of conceptually new construction for exploitation of low-debit well with high content free gas and mechanical impurities]. V: Sbornik rabot laureatov Mezhdunarodnogo konkursa nauchno-tekhnicheskikh i innovatsionnykh razrabotok, napravlennykh na razvitie toplivno-energeticheskoy i dobyvayushchey otrasli [In: Collection of works by laureates of the international contest of scientific, technical and innovative developments aimed at the development of fuel and energy and extractive industry]. Moscow, Format Publ., 2019, pp. 307–310. (In Russ.).

[7] Trulev A.V., Timushev S.F., Shmidt E.M. Features of ESP gas separator bench tests for oil production purposes. Neft. Gaz. Novatsii, 2020, no. 7, pp. 62–69. (In Russ.).

[8] Trulev A.V., Timushev S.F., Lomakin V.O. Conceptual features of the method of bench testing of gas separators for submersible electric centrifugal pumps for oil production. Nasosy. Turbiny. Sistemy [Pumps. Turbines. Systems], 2020, no. 2, pp. 11–27. (In Russ.).

[9] Trulev A.V., Timushev S.F., Lomakin V.O. et al. Problems and ways to solve the development of heavy oil fields with complex geological conditions. Neft. Gaz. Novatsii, 2020, no. 2, pp. 55–60. (In Russ.).

[10] Trulev A.V., Timushev S.F., Lomakin V.O. et al. Improving the multiphase stages flow path using the multiphase coefficient of the discrete particles relative speed. Izvestiya vysshikh uchebnykh zavedeniy. Mashinostroenie [BMSTU Journal of Mechanical Engineering], 2023, no. 9, pp. 72–87, doi: http://dx.doi.org/10.18698/0536-1044-2023-9-72-87 (in Russ.).

[11] Musinskiy A.N. Razrabotka i issledovanie vikhrevykh gazoseparatorov dlya vysokodebitnykh skvazhin. Diss. kand. tech. nauk [Development and research of vortex gas separators for high-yield wells. Kand. tech. sci. diss.]. Perm, PNIPU Publ., 2021. 172 p. (In Russ.).

[12] Lomakin V.O., Petrov A.I., Kuleshova M.S. Investigation of two-phase flow in axial-centrifugal impeller by hydrodynamic modeling methods. Nauka i obrazovanie: nauchnoe izdanie [Science and Education of the Bauman MSTU], 2014, no. 9. EDN: TDPOJT (In Russ.).

[13] Trulev A., Verbitsky V., Timushev S. et al. Electrical submersible centrifugal pump units of the new generation for the operation of marginal and inactive wells with a high content of free gas and mechanical impurities. IOP Conf. Ser.: Mater. Sci. Eng., 2019, vol. 492, art. 012041, doi: https://doi.org/10.1088/1757-899X/492/1/012041

[14] Trulev A., Timushev S., Lomakin V. Conceptual features of improving the flow-through parts of gas separators of submersible electric pumps systems for the production of formation fluid in order to improve the separating properties, energy efficiency and reliability. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012036, doi: https://doi.org/10.1088/1757-899X/779/1/012036

[15] Trulev A., Kayuda M., Timushev S. et al. Conceptual features for improving the flow part of the multiphase stages of ESP submersible plants for small and medium feeds for extracting stratal liquid with a high free gas content. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012042, doi: https://doi.org/10.1088/1757-899X/779/1/012042

[16] Cheremushkin V., Lomakin V., Kalin N. et al. Development and research of a borehole centrifugal pump stage. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012055, doi: https://doi.org/10.1088/1757-899X/779/1/012055

[17] Lyapkov P.D. Movement of a spherical particle relative to the liquid in the inter-blade channel of a centrifugal pump impeller. Trudy MINKh i GP, 1977, no. 129, pp. 3–36. (In Russ.).

[18] Soo S. Fluid dynamics of multiphase systems. Blaisdell, 1967. 524 p. (Russ. ed.: Gidrodinamika mnogofaznykh sistem. Moscow, Mir Publ., 1971. 536 p.)

[19] Kutateladze S.S., Styrikovich M.A. Gidravlika gazozhidkostnykh system [Hydraulics of gas-liquid systems]. Moscow-Leningrad, Gosenergoizdat Publ., 1958. 232 p. (In Russ.).

[20] Podvidz L.G., ed. Metodicheskoe posobie po raschetu shneko-tsentrobezhnoy stupeni nasosa [Methodical guide for calculation of screw-centrifugal pump stage]. Moscow, Bauman MSTU Publ., 1975. 64 p. (In Russ.).

[21] Lomakin V.O., Kuleshova M.S., Bozh’eva S.M. Numerical modeling of liquid flow in a pump station. Power Technol. Eng., 2016, vol. 49, no. 5, pp. 324–327, doi: https://doi.org/10.1007/s10749-016-0623-9

[22] Lomakin V.O., Kuleshova M.S., Kraeva E.A. Fluid flow in the throttle channel in the presence of cavitation. Procedia Eng., 2015, vol. 106, pp. 27–35, doi: https://doi.org/10.1016/j.proeng.2015.06.005

[23] Gouskov A.M., Lomakin V.O., Banin E.P. et al. Minimization of hemolysis and improvement of the hydrodynamic efficiency of a circulatory support pump by optimizing the pump flowpath. Biomed. Eng., 2017, vol. 51, pp. 229–233, doi: https://doi.org/10.1007/s10527-017-9720-9

[24] Zharkovskii A., Svoboda D., Borshchev I. et al. Axial-flow pump with enhanced cavitation erosion resistance. Energies, 2023, vol. 16, no. 3, art. 1344, doi: https://doi.org/10.3390/en16031344

[25] Pfleiderer C. Die Kreiselpumpen für Flüssigkeiten und Gase. Springer, 1961. 622 p. (Russ. ed.: Lopatochnye mashiny dlya zhidkostey i gazov. Moscow, Mashgiz Publ., 1960. 683 p.)

[26] Ovsyannikov B.V., Cheboevskiy V.F. Vysokooborotnye lopatochnye nasosy [High-speed vane pumps]. Moscow, Mashinostroenie Publ., 1975. 336 p. (In Russ.).