Перегляд по темі "borehole"

Зараз показуються 1-8 з 8

    • Analyzing changes in a leach solution oxygenation in the process of uranium ore borehole mining 

      Aben, Erbolat; Toktaruly, Bakytzhan; Khairullayev, Nursultan; Yeluzakh, Mukhtar (Dnipro University of Technology, 2021-09-30)
      Purpose is to increase uranium content in a PR solution while developing a technique varying oxidation-reduction potential of a leach solution with its oxygenation and identify changes in the oxygenation depending upon ...

    • Examination of density and detonation velocity of emulsion explosives 

      Kononenko, M.; Khomenko, O.; Kovalenko, I.; Myronova, I. (2022)
      Purpose. To develop a method for calculating the change in the density of emulsion explosives (EE) along the length of the charge column under the action of hydrostatic pressure at different angles of inclination of the ...

    • Experimental study of the thermal reaming of the borehole by axial plasmatron 

      Voloshyn, O; Potapchuk, I; Zhevzhyk, O; Yemelianenko, V; Zhovtonoha, M; Sekar, M; Dhunnoo, N (National Mining University, 2019-03-30)
      Purpose. To study rock spallation dynamics in the process of the borehole thermal reaming and analyze energy consumption of the borehole thermal reaming process by plasma jets of the axial plasmatron. Methods. Field ...

    • Neural simulation-based analysis of the well wall stability while productive seam penetrating 

      Katanov, Yuriy; Vaganov, Yuriy; Cheymetov, Matvey (Dnipro University of Technology, 2021-12-30)
      Purpose is the development of mathematical models to evaluate deformation of parameters of the rock mass-well geological and engineering system within the anisotropic media. Methods. Both mathematical and neural modeling ...

    • Study of the plasma flow interaction with the borehole surface in the process of its thermal reaming 

      Voloshyn, O; Potapchuk, I; Zhevzhyk, O; Yemelianenko, V; Horiachkin, V; Zhovtonoha, M; Semenenko, Ye; Таtarko, L (National Mining University, 2018-09-30)
      Purpose. Study of the plasma flow interaction with the borehole surface in the process of its thermal reaming for determination of transient temperature distribution along the borehole surface and the average coefficient ...

    • Technological planning basics of drilling wells for water 

      Askerov, Islam Kushbalovych; Ihnatov, Andrii Оleksandrovych (2023)
      It is known that the main way to extract drinking or industrial water is to build wells. Moreover, there is a general trend of constant increase in hydrogeological drilling. Borehole is a vertical boring to reach aquifer. ...

    • Use of the energy of parametric oscillations to improve drilling indices 

      Svitlytskyi, V; Ohorodnikov, P; Kovalchuk, Yu (National Mining University, 2018-09-30)
      Purpose. Increase of the efficiency of using energy of parametric oscillations within the assembly of drilling string bottom by means of solving nonlinear-parametric equations of a “bit – drive motor – drilled-out rock” ...

    • Using the methods to calculate parameters of drilling and blasting operations for emulsion explosives 

      Kononenko, M.; Khomenko, O.; Cabana, E.; Mirek, A.; Dyczko, A.; Prostański, D.; Dychkovskyi, R. (2023)
      Mathematical modelling of rock mass breaking using blasting has been applied to obtain formulas for the calculation of crush zone radii, intensive fragmentation, and crack formation around the charging cavity in the ...