Drilling guider hangs down

The utility model discloses a drilling guider hangs down, including the stable body of direction, drilling rod and joint, the direction stabilize the internal through -hole that is provided with, the length of drilling rod be greater than the length of the stable body of direction, just the drilling...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DENG SHEGEN, XIE KEJIA, LI YU, ZHANG MINGCHENG, SONG YIQIN
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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