Bibliography: 1. Epshteyn E. F., Matseychik V. I. Raschet buril'nykh trub v geologorazvedochnom burenii [Design of exploratory drilling stems], Moscow, Nedra, 1979, рр. 99—116.
2. Simonyants S. L., Mnatsikinov I. V. Efficient modification trend in turbo-drilling. Nefteservis. 2013, no 2, pp. 48—50. [In Russ].
3. Dvoynikov M. V., Muraev Yu. D. Engineering solutions and process designs to ensure stable operation of screw downhole motor. Journal of Mining Institute. 2016. vol. 218, pp. 198—201. [In Russ].
4. Iudin M. M. Effect of geological conditions on core recovery ratio of drilling. International Research Journal. 2017, no 5-2 (59), pp. 176—178. [In Russ]. DOI: 10.23670/IRJ.2017.59.092.
5. Lu Yiyu, Tang Jiren, Ge Z., Xia Binwei, Liu Y. Hard rock drilling technique with abrasive water jet assistance. International Journal of Rock Mechanics and Mining Sciences. 2013. Vol. 60. Pp. 47—56. DOI: 10.1016/J.IJRMMS.2012.12.021.
6. Zhabin A. B., Pushkarev A. E., Malikov A. A., Polyakov A. V. Destruction of rocks by super-high pressure water jets. Izvestiya Tul’skogo gosudarstvennogo universiteta, Nauki o zemle. 2014, no 2, pp. 74—78. [In Russ].
7. Gorelikov V. G., Lykov Yu. V., Vlasov L. A. Selecting drilling method for troublesome sedimentary rocks. Ecology and development of society. 2019, no 1 (28), рр. 28—30. [In Russ].
8. Gorelikov V. G. Design features of diamond drill bits for jointed rock drilling. Journal of Mining Institute. 2012. Vol. 197, pp. 29—33. [In Russ].
9. Pushmin P., Romanov G. Efficiency increase of hard rock destruction with the use of eccentric pulses. IOP Conference Series Earth and Environmental Science. 2015. Vol. 27. No 1. Article 012052. DOI: 10.1088/1755-1315/27/1/012052.
10. Rodriguez R., Laguna A., Gaselles M. G., Trapuzzano R., Gomez J. M., Oyatomari C. G., Ulloa P., Chamorro D. Durable yet aggressive conical diamond element bit increases ROP by 34% drilling difficult lower chert/conglomerate aection, Ecuador. SPE Latin American and Caribbean Petroleum Engineering Conference, Quito, Ecuador. 2015. November 18—20.
11. Hempton R., Copeland C., Cox G., Faught J., Blackman W., Prewitt E., McDonough C., White A. Innovative conical diamond element bits drill back-to-back tight curves in one run, improving economics while reducing risk in Avalon shale play, New Mexic. SPE Liguids-Rich Basins Conference-North America, Midland, Texas. 2015. September 2—3.
12. Radhakrishan V., Chuttani A., Anggrani F., Nan H., Poy S. O., Conical diamond element technology delivers step change in directional drilling performanse. IADS/SPE Asia Pacific Drilling Technology Conference, Singapore. 2016. August 22—24.
13. Mendebaev T., Smashov N., Ismailov H., Izakov B., Development of a resours — saving, small — sized downhole hydraulic macnine for well drilling. Eastern-European Journal of Enterprise Technologies. 2019. Vol. 6. No 1(102). Pр. 70—76. DOI: 10.15587/17294061.2019.184939.
14. Mendebaev T. N., Smashov N. Zh. Twin-chamber downhole hydraulic drilling unit. MIAB. Mining Inf. Anal. Bull. 2016, no 6, рр. 66—74. [In Russ].
15. Mendebaev T. N., Smashov N. Zh., Kuatova M. Zh. Water jet destruction of rocks in wee drilling by diamond tools with in dependent flushing ports. Eurasian Mining, 2019. No 2. Pр. 41—43. DOI: 10.17580/em.2019.02.09.
16. Orlov P. I. Osnovy konstruirovaniya. Spravochno-metodicheskoe posobie. T. 2 [Design principles. Reference manual. Vol. 2], Moscow, Mashinostroenie, 1988, pp. 355—361.