Large-diameter self-guiding horizontal drilling machine

The invention discloses a large-diameter self-guiding horizontal drilling machine, and relates to large-diameter horizontal drilling equipment similar to soft rock ore beds for coal mine gas extraction, coal seam water injection and the like. The technical problem to be solved is to provide a self-g...

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Bibliographische Detailangaben
Hauptverfasser:	GAO HONGBO, SANG ZONGQI, XU ZHONGHE, LIU XINGJIANG, ZHU YANGDONG, LI TAO
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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