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Information × Registration Number 0206U005686, 0103U001729 , R & D reports Title Development technology and tools of exploration drilling on the shelf deposits of the gas and coal fields popup.stage_title Head Kalinichenko Oleg Ivanovich, Registration Date 19-04-2006 Organization Donetsk National Technical University popup.description2 Mathematical description of work cycles of water-driven hammer tool for drilling boreholes on shelf and borehole drilling technology with near bottom pulse flushing were proposed and experimentally proved. Practical constructions of drilling tools and units and pulse flushing devices were developed and tested. Product Description popup.authors popup.nrat_date 2020-04-02 Close