PROSPECTS FOR DEVELOPMENT OF TECHNOLOGY AND FACILITIES OF PILOT BORES HORIZONTAL DIRECTIONAL DRILLING FOR TRENCHLESS LAYING OF PIPELINES

by Lev A. Saruev, Anastasiya V. Shadrina, Alexey L. Saruev, Sergey S. Vasenin, Aleksandr V. Pakharev
Published 2019-04-01

RESEARCH OF POWER IMPULSES TRANSFER THROUGH THREADED CONNECTIONS OF THE DRILL-STRING DURING ROTARY-PERCUSSION DRILLING OF PILOT HOLES FOR TRENCHLESS PIPELINE LAYING

by Lev A. Saruev, Kirill V. Melnov, Anastasiya V. Shadrina, Nikolay V. Goncharov, Aleksey L. Saruev
Published 2020-12-01