Self-adaptive grooving method and system for coal mine underground gas extraction drill hole sealing section

The invention belongs to the technical field of gas extraction. According to the self-adaptive grooving method and system for the underground coal mine gas extraction drill hole sealing section, a self-adaptive grooving device is used for conducting grooving and seam forming in a deformed extraction...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SHEN KAI, XIONG WEI, LIU WEN, LIAO YIN, YI ENBING, BA QUANBIN, GAO ZHENYONG, LI RIFU, HE JUN, FAN ZHENGXING, GONG GUOMIN, HAO GUANGSHENG, SHI, ROBERT, YONGTAO, WANG SHIWEI, ZHAO XUSHENG, LIU YANBAO, MA DAIHUI, ZHOU HOUQUAN, MA QIANQIAN, YANG LIPING
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 SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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