| Article |
|---|
| Article name |
Influence of the material and granulometric composition of hydrogenic ores on the intensity of deposition of colmatants during underground borehole leaching |
| Authors |
Mikhailov A.. , OOvseychuk V.A. doctor of engineering sciences, professor, mks3115637@yandex.ru |
| Bibliographic description |
|
| Category |
Earth science |
| DOI |
622.775 |
| DOI |
10.21209/2227-9245-2022-28-5-28-36 |
| Article type |
|
| Annotation |
During the development of hydrogenous uranium deposits using the in-situ well leaching method, there is a gradual loss of productivity of technological wells. This phenomenon is caused by coltmation processes in the productive formation. The most negative impact on the loss of well productivity has mechanical and chemical types of colmatation. Mechanical kolmatation is related to the accumulation of thin clay particles in the near-filter zone of injection wells, which plug up the near-filter space. Chemical kolmatation is the deposition of chemical compounds formed during destruction of rock-forming minerals of the productive formation in the near-wellbore zone by sulfuric acid. Earlier studies of these phenomena showed a direct relationship between the intensity of colmatants’ formation and the material composition of rock-forming minerals composing the host rocks of hydrogenous deposits and their granulometric composition. Each deposit is characterized by a specific set of mining-geological and granulometric parameters, so the colmatation processes for each deposit are individual. This article is devoted to establishing the correlation between the intensity of colmatation processes in the deposits of the Khiagda ore field and their characteristics.
The object of the study - technological installations for in-situ borehole leaching. The research objectives are to establish the intensity of colmatation phenomena in the near-filter zone of technological wells and to develop regimes of repair and restoration work with reference to mining and geological and hydrogeological conditions of deposits of Khiagda ore field.
The research methodology are presented by collection of information, its chemical and statistical processing and establishment of connection between the material and granulometric composition of ores in order to predict colmatation phenomena. The following research methods: chemical and granulometric analysis of processes occurring during underground borehole leaching of hydrogenous uranium ores, mathematical and statistical analysis of the results, simulation of processes of sedimentation and liquidation of colmatants from the filter zone of technological wells have been used.
|
| Key words |
Keywords: downhole in-situ leaching, , process well, productive solution, injection well, pumping well, well flow rate, filtration coefficient, well injectivity, mechanical colmatation, chemical colmatation, rock-forming minerals, colmatants, near-field zone, sulfuric acid, extravioimpulse, hydrochloric acid, ammonium bischofite |
| Article information |
Mikhailov A., Ovseychuk V. Influence of the material and granulometric composition of hydrogenic ores on the intensity of deposition of colmatants during underground borehole leaching // Transbaikal State University Journal, 2022, vol. 28, no. 5, pp. 28–36. DOI: 10.21209/2227-9245-2022-28-5-28-36 |
| References |
1. Babkin, A. S. Mikhaylov A. N., Gurulev Ye. A., Alekseyev N. A., Ivanov D. A., Glotova O. Yu., Zabaykin Yu. V. Moskovskiy ekonomicheskiy zhurnal (Moscow Economic Journal), 2019, no. 2, рр. 18–22.
2.Bitimbayev M. Zh. Vestnik Natsionalnoy inzhenernoy akademii RK (Bulletin of the National Engineering Academy of the Republic of Kazakhstan), 2009, no. 2, p. 122–125.
3. Gorbatenko O. A., Gorbatenko O. A., Chistilin P. Ye., Panova Ye. N. Remontno-vosstanovitelnye raboty na geotekhnologicheskih skvazhinah predpriyatiy PSV urana (Repair and restoration works at geotechnological wells of uranium ISR enterprises). Almaty: Kaz NITU, 2017. 194 p.
4. Dzhakupov D. A. Innovatsionnoye razvitiye gornodobyvayuschey otrasli: materialy mezhdunar. nauch.-tehn. konf. (Innovative development of the mining industry: materials of the international. sci.-tech. conf.). Krivoy Rog: [b. i.], 2016, рр. 130.
5. Omelyanyuk M. V. Tehnika i tehnologiya fiziko-himicheskogo vosstanovleniya debitov skvazhin (Technique and technology of physical and chemical restoration of well flow rates). Krasnodar: Kuban. State Technol. Un-ty, 2017. doi:10.23968/2305-3488. - 2017.- Pp.90–105.
6. Rakishev B. R., Matayev M. M., Kenzhetayev Zh. S. Gorny informatsionno-analiticheskiy byulleten (Mining information and analytical bulletin), 2019, no. 7, рр. 123–131.
7. Tehnologicheskiy reglament erliftnoy prokachki skvazhin (Technological regulations for airlift pumping of wells). Chita: Khiagda, 2019, 59 p.
8. Tsymbalov A. A. Issledovaniye protsessov dekolmatatsii vodozabornyh skvazhin. 2014–2018 (Study of the processes of decolmatation of water wells. 2014–2018). Available at: http://www.doktorsc.ru/index.php/issledovanie-protsessov (date of access: 04/21/2022). Text: electronic.
9. Kaiguang H., Qingliang W., Ganqiang T., Aihe W., Dexin D. Procedia Earth and Planetary Science (Procedia Earth and Planetary Science), 2011, vol. 2, рр. 150–155.
10. Ma Q., Feng Z. G., Liu P., Lin X. K., Li Z. G., Chen M. S. Journal of Radioanalitycal and Nuclear Chemistry (Journal of Radioanalitycal and Nuclear Chemistry), 2017, vol. 311, рр. 2129–2134.
11. Prǎvǎlie, R., Bandoc G. Journal of Environmental Management (Journal of Environmental Management), 2018, vol. 209, рр. 81–92.
|
| Full article | Influence of the material and granulometric composition of hydrogenic ores on the intensity of deposition of colmatants during underground borehole leaching |
