Navoi State University of Mining and Technologies, Navoi, Uzbekistan
R. U. Dzhuraev, Head of Depart ment, Doctor of Engineering Sciences, Professor, r.u.djuraev@yandex.ru
D. N. Khatamova, Doctor of Eng ineering Sciences, Professor

Well-timed advancing of geological survey and mining operations requires the integrated power and heat supply management. The analysis of energy and resources consumed in drilling shows that energy consumption has a substantial influence on operating cost of drilling equipment. Over the recent years, after an upsurge in prices of fuel and energy, the costs of drilling jumped. The increase of the drilling cost is particularly appreciable in cold seasons, for instance, heat energy required for drilling in the autumn and winter periods scales up the total energy cost. The key objective of the research implemented by the authors is enhancing performance of exploration drilling equipment through the increased efficiency owing to utilization of secondary and renewable energy sources, and due to decreased energy cost. A fuel- and energy-saving technological facility is developed on the basis of beneficial utilization of heat generated by drive of a diesel power plant of drilling rigs. The assembly of beneficial utilization of secondary energy, with an ejection nozzle, allows decreasing consumption of fuel by the drilling equipment compressor by 10–12 % owing to a decreased resistance created by a heat exchanger to exhaust gas flow. In addition, the efficiency of a drilling rig grows by 10 % thanks to recuperation of secondary energy resources.

1. Hossain M. E., Islam M. R. Drilling Engineering Problems and Solutions. A Field Guide for Engineers and Students. Hoboken : Wiley, 2018. 642 p.
2. Sklyanov V. I., Figurak A. A., Emelina N. B., Eremenko A. A. Improvement of well flushing technology during drilling in permafrost. Eurasian Mining. 2020. No. 2. pp. 45–42.
3. Mendebaev Т. N., Smashov N. Zh., Kambarbek Zh. К. Development of a bottom hole assembly for hydromechanical drilling. Eurasian Mining. 2024. No. 2. pp. 53–56.
4. Lomaev S. S., Merkulov M. V., Golovin S. V. Basic methods to determine rated loads of drilling rigs during geological exploration. New Ideas in the Earth Sciences : XV International Conference Proceedings. Moscow : Rossiyskiy gosudarstvennyi geologorazvedochnyi universitet im. S. Ordzhonikidze, 2021. Vol. 4. pp. 91–94.
5. Kosyanov V. A., Cherezov G. V., Golovin S. V. Optimization of complex power supply of geological and prospecting works on the basis of technical and economic modelling. Razvedka i okhrana nedr. 2016. No. 3. pp. 47–53.

6. Rakhmatullin I. Z., Merkulov M. V. Enhancement of energy supply efficiency of exploration drilling using secondary energy resources. New Ideas in the Earth Sciences : XIV International Conference Proceedings. Moscow : Rossiyskiy gosudarstvennyi geologorazvedochnyi universitet im. S. Ordzhonikidze, 2019. Vol. 4. pp. 160–163.
7. Juraev R., Xatamova D., Normayev Q. Improving the operational efficiency of drilling rock-breaking tools. International Scientific Siberian Transport Forum–TransSiberia. 2023. E3S Web of Conferences. 2023. Vol. 402. ID 10018.
8. Merkulov M. V., Kosyanov V. A., Golovin S. V. Thermotechnics, Engineering Thermodynamics and Heat Supply in Geological Exploration : Textbook. Moscow : Yurayt, 2025. 330 p.
9. Neskoromnykh V. V., Popova M. S., Petenev P. G., Neverov A. L., Golovchenko A. E. Advanced Technologies of Solid Mineral Exploration Drilling : Textbook. Krasnoyarsk : Sibirskiy federalnyi universitet, 2020. 340 p.
10. Kvaginidze V. S., Kozovoy G. I., Chakvetadze F. A., Antonov Yu. A., Koretskiy V. B. Drilling Rigs at Open Pit Mines. Configurations, Operation, Design. 4^th ed. Moscow : Gornaya kniga, 2021. 296 p.
11. Merkulov M. V., Juraev R. U., Leontyeva O. B., Makarova G. Yu., Tarasova Ya. B. Simulation of thermal power on bottomhole on the basis of experimental studies of drilling tool operation. International Journal of Emerging Trends in Engineering Research. 2020. Vol. 8, No. 8. pp. 4383–4389.
12. Crumpton H. Well Control for Completions and Interventions. Cambridge : Gulf Professional Publishing, 2018. 814 p.
13. Ramsey M. S. Practical Wellbore Hydraulics and Hole Cleaning: Unlock Faster, More Efficient, and Trouble-Free Drilling Operations. Cambridge : Gulf Professional Publishing, 2019. 319 p.
14. Aadnøy B. S., Looyeh R. Petroleum Rock Mechanics: Drilling Operations and Well Design. 2^nd ed. Cambridge : Gulf Professional Publishing, 2019. 460 p.
15. Chin W. C. Measurement While Drilling (MWD): Signal Analysis, Optimization and Design. 2^nd ed. Hoboken : Wiley, 2018. 522 p.