Portable well patrol tool

A portable well patrol tool is applied in repairing oilfield oil production wells. One end of a tool bar is welded with a hexangular sleeve C. The other end of the tool bar is welded with a hexangular sleeve A and a hexangular sleeve B, the central lines of the hexangular sleeve A and the hexangular...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YU GEJIANG, WANG ZHIMING, FANG YONG, YANG JUN, LIAO QIANG
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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