Anti-deviation mechanism for hydrological hole forming

The utility model relates to the technical field of geological monitoring, and discloses a hydrological hole forming deviation prevention mechanism which comprises a positioning pipe, a guide pipe coaxially arranged on the outer side of the positioning pipe and a limiting piece for fixing the positi...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SUN YU, YU BIN, HUANG WEIXIANG, CHI HENGTIAN, TAO XIAOSHENG, HU YIBIN, LU JIAQI
Format:	Patent
Sprache:	chi ; eng
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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