Stimulation of uranium recovery by treatment of seepage zones of wells

Verkhoturov, Alexey A.; Sabigatulin, A.A.

doi:10.25018/0236-1493-2019-07-0-13-20

Cited by 3 publications

(2 citation statements)

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“…In the course of mining the block, the valuable component is extracted unevenly, mainly from the most permeable zones. Low-permeability zones are less involved in leaching and may contain unmined reserves, stagnant zones [19]. The size of these zones and their position in the inter-well space is usually unknown.…”

Section: Introductionmentioning

confidence: 99%

Application of radio-wave geointoscopy method to study the nature of spreading the solutions in the process of uranium underground leaching

Tsoy¹,

Myrzakhmetov²,

Yazikov³

et al. 2021

Min. miner. depos.

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Purpose. Assessment of the effectiveness of using the method of radio-wave geointoscopy of the inter-well space for three-dimensional mapping of the zone of the leaching solution actual propagation in the process of uranium mining by the method of underground leaching. Methods. Experimental-industrial studies of the leaching process are conducted at technological block 68 of the Semizbay deposit (Kazakhstan). In experimental studies, special equipment is used for conducting radio-wave geointoscopy. Inter-well measurements are performed using the RVGI-06 equipment. The observations are conducted in a fan pattern within the filter section. The step between adjacent points along the wellbore is 1 m. At different stages of mining the technological block, maps of geoelectric resistivity have been compiled, with the help of which a comparative analysis is performed. Findings. A tendency to an increase in the area of acidic solutions propagation over time has been revealed by comparing the fragments of RVGI geoelectric map at different stages of mining the block. The influence of a heterogeneous geological structure on the uniformity of the leaching solutions propagation has been proved. It has been determined that the resolving power of the radio-wave geointoscopy method is sufficient to detect changes in geoelectric conditions at small monitoring cycles in time. The spatial-temporal change in the front of the leaching solutions propagation makes it possible to determine the prevailing directions of solutions propagation and to assess the filtration characteristics of rocks. Originality. The patterns have been determined of the leaching solutions propagation over time from the beginning of block acidification to active leaching. The first attempts have been made to use the geophysical well logging method in the practice of uranium mining by In-Situ Leaching (ISL) method. Practical implications. Monitoring studies by radio-wave geointoscopy method at the stage of passive acidification can be re-commended for further experimental and scientific testing at technological blocks of the Semizbay deposit for a quantitative assessment of the filtration characteristics of rocks and the dynamics of the acidification process development, as well as for the development of well-grounded recommendations on the optimal scheme for mining the blocks in specific geotechnical conditions.

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Section: Introductionmentioning

confidence: 99%

Application of radio-wave geointoscopy method to study the nature of spreading the solutions in the process of uranium underground leaching

Tsoy¹,

Myrzakhmetov²,

Yazikov³

et al. 2021

Min. miner. depos.

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“…Создание проблемно-ориентированной системы управления показателями технологических процессов геотехнологического полигона и цеха переработки продуктивных растворов определяется прежде всего технико-экономической целесообразностью и обеспечивает следующее: повышение оперативности и надежности контроля и управления основными показателями технологических циклов; поддержание важных технологических параметров процесса на заданном уровне в реальном режиме времени; повышение технико-экономических показателей работы предприятия за счет расширения, полноты состава и ка-531 ческих процессов служит для выполнения следующих функций: сбор, обработка и хранение информации о переменных, характеризующих состояние технологических блоков; формирование и представление информации о процессе добычи и переработки растворов технологическому и административному персоналу; реализация функций локальных систем регулирования, стабилизации и мониторинга заданных параметров технологических процессов; дистанционное управление технологическим оборудованием узлов перерабатывающего комплекса; графическое, цифровое, мнемоническое отображение оперативных данных о функционировании управляемых объектов технологического полигона; сигнализация предаварийных и аварийных ситуаций; формирование и печать отчетных документов [6][7][8].…”

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Разработка Проблемно-Ориентированной Системы Управления Показателями Технологических Процессов Рудника Подземного Скважинного Выщелачивания Урана

Подрезов¹,

D.R.²

2020

ППС

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Modeling the performance indicators of geotechnological blocks and the movement of the discovered reserves of an underground borehole leaching of uranium

Podrezov

2020

Vestn. Dagest. gos. teh. univ., Teh. nauki

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Aim. This work conducts a comprehensive analysis of system relationships between the main technical and technological indicators of technological blocks functioning at underground uranium leaching mines. Methods. An information model describing the operation of technological wells was created. This model was used to determine the relationship between the main volume and quality indicators of reserves development, such as the volume of mining mass, the volume of discovered reserves, metal recovery, the average concentration of uranium, and the value of the ore interval. Results. For an adequate assessment of the reserve of technological blocks, the initial set of factors determining the volume of discovered reserves and production volumes at the field was formed: the interval of the effective capacity of the acidified productive horizon; the grouping of technological wells in the block; the area of the technological block. The analysis of geological and technological information carried out using the developed information model, along with an assessment of the resources during field mining, showed that 76% of operating technological blocks demonstrated overrecovery according to the actual results or the results predicted by forecasts.Conclusion. The results of reserve re-calculation showed that the real reserves of uranium in the subsurface did not correspond to the actual development. In addition, it was found that systematic underestimation of discovered reserves was also associated with the calculation of uranium content in ore intervals, i.e., taking into account the value of the radioactive equilibrium coefficient.

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Stimulation of uranium recovery by treatment of seepage zones of wells

Cited by 3 publications

References 0 publications

Application of radio-wave geointoscopy method to study the nature of spreading the solutions in the process of uranium underground leaching

Application of radio-wave geointoscopy method to study the nature of spreading the solutions in the process of uranium underground leaching

Разработка Проблемно-Ориентированной Системы Управления Показателями Технологических Процессов Рудника Подземного Скважинного Выщелачивания Урана

Modeling the performance indicators of geotechnological blocks and the movement of the discovered reserves of an underground borehole leaching of uranium

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