Literature cited
F. N. Fomenko, Electrodrills for Oil and Gas Wells [in Russian], Gostoptekhizdat, Moscow (1961).
R. A. Gandzhumyan, S. L. Zalkin, and N. G. Sereda, in: Machines and Oil Rigs [in Russian], VNIIOENG, No. 11 (1969).
Additional information
Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 6, pp. 29–30, June, 1972.
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Griskin, E.N. Analysis of the performance of the hydraulic protection system of electrodrills and ways of improving its reliability. Chem Petrol Eng 8, 553–555 (1972). https://doi.org/10.1007/BF01139105
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DOI: https://doi.org/10.1007/BF01139105