Flow distribution control method, device and system in lifting process of drill bar of rotary drilling rig

The invention discloses a flow distribution control method, device and system in the lifting process of a drill bar of a rotary drilling rig. The method comprises the following steps that the actual rotating speed of a power head system is obtained; the actual rotating speed of the power head system...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LI JUNFEI, AI CHAO, XU HONGYU, KONG XIANGDONG, JIANG SHUHUI, ZHANG LIANDONG, JIA CUNDE, ZHAO QI'AO
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!