BORING PASSIVE AND ACTIVE ELEMENTS FOR BORING FROM BOTTOM TO TOP WITH INSERTED CUTTERS AND METHODS ASSOCIATED THEREWITH

FIELD: process engineering.SUBSTANCE: set of invention relates to rill tools with active and passive elements and to their production. Drill tool comprises body with end surface at its distal end and gaging regions. The latter comprises several blades extending longitudinally upward. Besides it incl...

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Bibliographische Detailangaben

Hauptverfasser:	DZHEJMS L. OVERSTRIT, DZHON KH. STIVENS, ROBERT DZH. BASK, KENNET EH. DZHILMOR
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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