Technologies for the preparation of process fluids, drilling and grouting solutions and cleaning of the bottom-hole zone should be adapted to the specific conditions of well repair in the Krasnodar region and similar ones, whose oil and gas fields are at the final stage of development. Bottom-hole flushing systems are ineffective, and process agents injected into wells often do not meet the stated requirements, and there is no specialized equipment. One of the possible ways to improve the quality of liquid preparation is to improve such technologies, as sealing powdered and liquid components in jet devices, dispersing them with jet devices and cleaning the bottomhole zone with high-pressure jets. All these processes are united by the same phenomenon of the pressure outflow of liquid through the nozzle. A characteristic feature of such processes is the uncertainty of designing the geometry of the flow part of technological devices. In particular, the requirements for the geometric part of the nozzle for the formation of the most effective jet in jet mixers of drilling and grouting solutions are not defined, there are no systematic ideas about methods of using cavitation when jets flow in dispersants. The general scientific and technical problem of improving and introducing into production new jet technologies for the preparation and processing of drilling flushing and grouting solutions can be specified as a problem of optimizing jet processes in order to increase the efficiency of the preparation of technological liquids.
References
1. Sokolov E. Ya., Zinger N.M., Struynye apparaty (Inkjet devices), Moscow: Energoatomizdat Publ., 1989, 352 p.
2. Drozdov A.N., Malyavko E.A., Alekseev Y.L., Shashel O.V., Stand research and analysis of liquid-gas jet-pump’s operation characteristics for oil and gas production, SPE 146638-MS, 2011, DOI: https://doi.org/10.2118/146638-MS
3. Drozdov A.N., Gorelkina E.I., Development of a pump-ejector system for SWAG injection into reservoir using associated petroleum gas from the annulus space of production wells (In Russ.), Zapiski Gornogo instituta = Journal of Mining Institute, 2022, V. 254, pp. 191–201, DOI: http://doi.org/10.31897/PMI.2022.34
4. Drozdov A.N., Gorelkina E.I., Investigation of the ejector`s characteristics for the system of injection of water-gas mixtures into the reservoir (In Russ.), SOCAR Proceedings, 2022, Special Issue no. 2, pp. 25–32, DOI: https://doi.org/10.5510/ogp2022si200736
5. Pakhlyan I.A., Experimental assessing conformity of the theoretical equation of characteristics of jet mixer for the preparation of drilling flushing and grouting solutions (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2022, no. 11, pp. 94–97, DOI: https://doi.org/10.24887/0028-2448-2022-11-94-97
6. Kamenev P.N., Gidroelevatory v stroitel’stve (Hydraulic elevators in construction), Moscow: Stroyizdat Publ., 1970, 416 p.
7. Pakhlyan I.A., Ukolov A.I, Omel’yanyuk M.V., Vliyaniya kinematicheskikh parametrov na protsess kavitatsionnoy obrabotki promyvochnykh zhidkostey i tamponazhnykh rastvorov (In Russ.), Tekhnologiya nefti i gaza, 2024, no. 1, pp. 46–51, DOI: https://doi.org/10.32935/1815-2600-2024-150-1-46-51
8. Pakhlyan I.A. Omel’yanyuk M.V., On the issue of import substitution in systems for the preparation of emulsion drilling fluids (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2023, no. 8, pp. 36-40, DOI: https://doi.org/10.24887/0028-2448-2023-8-36-40
