Rotary drilling rig

The invention discloses a rotary drilling rig. The drilling rig comprises a chassis, an operating room arranged on the chassis, and a mast arranged on the operating room; a lifting platform is arranged on the mast, a rotary excavating power head is arranged on the lifting platform, a hollow drill ro...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	LIU SIMOU
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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