Segment connecting structure of rotary drilling rig drilling rod

The utility model relates to a segment connecting structure of a rotary drilling rig drilling rod. The segment connecting structure of the rotary drilling rig drilling rod comprises drilling rods, core rods and a driving pipe, wherein an inner key along the length direction is arranged inside each d...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHAO XINYU, HU LIANQI
Format:	Patent
Sprache:	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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