Ukhta State Technical University

Совершенствование конструкции наддолотного калибрующе-эжекционного устройства для повышения эффективности разрушения горных пород в процессе строительства скважин

This research investigates the operational performance of ejection systems integrated into drilling rock-breaking assemblies. The object of the study is a near-bit reaming-ejection device (RED), which is installed in the bottom hole assembly (BHA) and is intended to improve botto...

SPECIALLY PROTECTED NATURAL AREAS IN THE ZONAL‑LANDSCAPE STRUCTURE OF THE BOLSHAYA ZEMLYA TUNDRA

The system of specially protected natural areas (SPNAs) of the Bolshezemelskaya tundra, which is entirely located within the Arctic zone of the Russian Federation, has been examined. The zonal landscape structure of the Bolshezemelskaya tundra and groups of local natural territor...