CIRCULATING VALVE

FIELD: oil and gas industry. ^ SUBSTANCE: invention is referred to a petroleum industry, in particular to the down hole equipment and can be used at an oil recovery, flushing, and development of holes, abandonment of hydratoparaffinic formations. It provides creation of the device with the monolithi...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	DEMJANENKO NIKOLAJ ALEKSANDROVICH, GALAJ MIKHAIL IVANOVICH, LOBOV ALEKSANDR IVANOVICH
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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