E3S Web of Conferences

Specific features of drilling mode with extendable working elements

Boranbay Ratov, Boris Fedorov, Andrii Sudakov, Indira Taibergenova and Saltanat Kozbakarova

E3S Web of Conf., 230 (2021) 01013

Published online: 18 January 2021

DOI: 10.1051/e3sconf/202123001013

Boranbay Ratov

Boris Fedorov

Andrii Sudakov

Indira Taibergenova

Saltanat Kozbakarova

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