TURBO-CORING DEVICE EQUIPPED WITH A FOLLOWING PIPE

TURBO-CORING DEVICE EQUIPPED WITH A FOLLOWING PIPE This turbo-coring device comprises a tubular body provided with a coring bit and surrounded by a following pipe provided by a reaming bit. The tubular body is connected to the turbine through a fluid distributor having a side opening for discharging...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	THIERY, JEAN, CHATARD, MICHEL, SONNET, ALAIN
Format:	Patent
Sprache:	eng ; fre
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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