Advanced drilling and coring method for complex heterogeneous stratum

The invention discloses an advanced drilling and coring method for a complex heterogeneous stratum, and relates to the technical field of drilling and coring, and the coring method comprises the following steps: step 1, before drilling, an adjusting mechanism drives a drilling cutter to move in a di...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG NIANCHAO, HONG QING, WU GAN, CAI WUHE, KIMOTO MASASHI, YAO SHANGWEI, ZHANG GUIFA
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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