DEVICE FOR STOPPING FLUID FLOW IN THE WELL

FIELD: oil and gas extractive industry. ^ SUBSTANCE: device has packer, lower cutting valve, pressure transfer assembly with sphere valve, cutting valve control mechanism and a plunger. Cutting valve control mechanism has cylindrical body coaxially mounted with plunger with serially repeating on its...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	FOFANOV O.O, PRASS L.V, GERASIMENKO V.N
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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