Outer-diameter-adjustable forging and milling tool

The invention relates to a downhole tool for oil and gas field well repair, in particular to an outer-diameter-adjustable forging and milling tool capable of being used for grinding and milling sleeves with different outer diameters. The outer-diameter-adjustable forging and milling tool comprises a...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LIU YANXIN, ZHANG YANWEN, SUO CHANGRUI, WANG HANXIANG, CHE JIAQI, MA SHAOHUA, SHANG FANQING
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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