Borehole path controller

The utility model relates to a borehole path controller for a directional well and a vertical shaft in the well drilling process of oil field, which is composed of a main body (1), an outer sleeve (2), a rolling bearing (3), a sliding cutter (5) with double edges, a center pipe (9), a water plug (10...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHUNYONG WEI, JUNLIANG ZHUO, CHUNTIAN HUANG
Format:	Patent
Sprache:	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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