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Application filed by Анатолій Леонідович Гапоненко, Анатолий Леонидович Гапоненко, Костянтин Анатолійович Гапоненко, Константин Анатольевич ГапоненкоfiledCriticalАнатолій Леонідович Гапоненко
Priority to UA95125321ApriorityCriticalpatent/UA8291A/en
Publication of UA8291ApublicationCriticalpatent/UA8291A/en
The invention relates to mining and can be used for well drilling. Drilling equipment includes drill beam with drill instrument as roller-cutter bit with rock-destruction roller-cutters installed on lads with pins, it has channel for supply of working agent to well bottom zone and blow-through channels for supply of working liquid to support bearings of roller-clutters.