DAMPING ELEMENT OF CUSHION SUB

A damping element of a cushion sub includes outer bushing, the outer surface of that one is made cylindrical, the inner surface is made cone-like, and inner bushing the outer surface of which is made conical, and the inner surface is made cylindrical. The outer and the inner bushings are placed conc...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Zaiets Olena Yaroslavivna, Mytsak Oleksandr Vitaliiovych, Scherbak Polina Volodymyrivna, Stefurak Roman Ivanovych
Format:	Patent
Sprache:	eng ; rus ; ukr
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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