WELL EXPANSION METHOD

FIELD: mining.SUBSTANCE: invention relates to the field of mining and blasting, in particular, to drilling, more precisely, to methods of expansion of small-diameter wells and can be used in performance of works in complex mining conditions. Method of well expansion includes drilling of pilot centra...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Vozgrin Roman Aleksandrovich, Budkov Aleksandr Mikhajlovich, Nasonov Yurij Alekseevich, Orekhov Roman Vladimirovich, Segen Artem Andreevich, Brigadin Ivan Vladimirovich, Krasnov Sergej Anatolevich
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING MINING OR QUARRYING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SHAFTS TUNNELS
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