In case of intensive water with sand production fr om the well during oil and gas extraction, creation of special pumping equipment for harsh operating conditions is still an important objective. The main objective of scientific studies is to develop new principles of multiphase pumping in case of high concentration of solids in a stream. Known technical solutions in the area of pumping equipment: labyrinth pumps for oil and gas production; centrifugal pumps for simultaneous operation with jet pumps; pumping equipment able to operate as a reverse pump, are analyzed in the study. The current study is based on the concept wh ere complex screw type surfaces of the circulating part of the pump can be substituted with the set of flat and cylindrical surfaces that are more technological. Moreover, there is a greater variety of construction materials available, including the hardest types. Nowadays, it has become possible to reconsider some approaches for the creation of pumping equipment and labyrinth pumps in particular due to emerged ability of practical usage of additive technologies. In the new labyrinth pump development study we focused on two additive technologies: «Material Extrusion» and «Sheet Lamination». In accordance with first laboratory tests it is concluded that labyrinth pump characteristics are stable, but instead of constructing more complex screw-type surface it is possible to use simpler technology of rotor and stator consisting of a set of flat discs creation. The choice of the most perspective directions for further research and construction studies in order to provide effective pumping of liquids with high concentration of solids in a stream is made in the study. Further studies are aimed at creation of new pumping equipment suitable for oil and gas production if harsh operating conditions.
References
1. Golubev A.I., Labirintno-vintovye nasosy i uplotneniya dlya agressivnykh sred (Labyrinth-screw pumps and seals for aggressive media), Moscow: Mashinostroenie Publ., 1981, 112 p.
2, Sazonov Yu.A., Osnovy rascheta i konstruirovaniya nasosno-ezhektornykh ustanovok (Basics of calculation and design of pump-ejector systems), Moscow: Neft’ i gaz, 2012, 305 p.
3. Utility patent no. 66789 RF. MPK F04S 02/00, Nasos-dispergator (Pump-dispersant), Inventors: Sazonov Yu.A., Baldenko F.D., Zakharov M.Yu., Zayakin V.I., Mokhov M.A.
4. Patent no. 2232301 RF, Submersible pumping unit, Inventors: Drozdov A.N, Ageev Sh.R., Den'gaev A.V. et al.
5. Zlenko M.A., Nagaytsev M.V., Dovbysh V.M., Additivnye tekhnologii v mashinostroenii (Additive technologies in mechanical engineering), Moscow: Publ. of NAMI, 2015, 220 p.
6. Utility patent no. 158649 RF, Nasos-dispergator (Pump-dispersant), Inventors: Sazonov Yu.A., Mokhov M.A., Aseev V.I.
7. Drozdov A.N., Egorov Yu.A., Telkov V.P. et al., Technology and technique of water and gas impact on oil reservoirs (In Russ.), Territoriya NEFTEGAZ, 2006, no. 2, pp. 54–59.
8. Drozdov A.N., Drozdov N.A., Laboratory researches of the heavy oil displacement from the Russkoye field’s core models at the SWAG injection and development of technological schemes of pump-ejecting systems for the water-gas mixtures delivering, SPE 157819, 2012.
9. Drozdov A.N., Stand investigations of ESP's and gas separator's characteristics on gas-liquid mixtures with different values of free-gas volume, intake pressure, foaminess and viscosity of liquid, SPE 134198, 2010.
10. Drozdov A.N., Terikov B.A., Application of submerged jet pumps systems with dual-string lift for the sticky holes operation (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2009, no. 6, pp. 68–72.
11. Sazonov Yu.A., Mokhov M.A., Mishchenko I.T. et al., Ejector system development for hard-to-recover and unconventional hydrocarbon reserves (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2017, no. 10, pp. 110–112, DOI: 10.24887/0028–2448–2017–10–110–112.
12. Sazonov Yu.A., Mokhov M.A., Mishchenko I.T. et al., Prospects of application of two-chamber pump-compressor units for pumping of multiphase medium (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2017, no. 11, pp. 137–139, DOI: 10.24887/0028–2448–2017–11–137–139.
13. Utility patent no. 125272 RF, Nasosnaya sistema (Pumping system), Inventors: Sazonov Yu.A., Mokhov M.A., Zayakin V.I., Dimaev T.N.
14. Utility patent no. 131818 RF, Nasosnaya sistema (Pumping system), Inventors: Sazonov Yu.A., Kekk N.I., Babakin I.Yu., Dimaev T.N.
15. Utility patent no. 131820 RF, Nasosnaya sistema (Pumping system), Inventors: Sazonov Yu.A., Kekk N.I., Babakin I.Yu., Dimaev T.N.
