OSCILLATOR FOR DRILLING STRING

FIELD: mining.SUBSTANCE: invention relates to hydraulic rotary drilling drives located in wells, in particular to oscillators for a drill string, designed to create hydromechanical impulses acting on a drill string. Oscillator contains a gerotor screw hydraulic motor and a valve, as well as a plunge...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Timofeev Vladimir Ivanovich, Afonin Dmitrij Aleksandrovich, Dudin Roman Vyacheslavovich, Ryzhov Aleksandr Borisovich, Permyakov Viktor Sergeevich
Format:	Patent
Sprache:	eng ; rus
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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