Device for washing mud cake on inner wall of drill rod

The invention provides a device for washing a mud cake on the inner wall of a drill rod, and relates to the technical field of geological drilling rope coring drill rod inner wall mud cake removing equipment. The device solves the technical problem that a cleaning device is easy to fail in sealing a...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHEN GUOQIANG, SUN YUCHEN, ZHANG JIANSONG, YANG GANSHENG, LIU YONGSHENG, DOU ZIJUN
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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