DEVICE FOR SEALING OF WELL MOUTH

FIELD: oil and gas production industry. SUBSTANCE: this can be used in construction and overhaul of oil and gas wells. Device incorporates body with central axial stepped passage and radial passages. Located in body are ball-shaped locking members with seats, turning units in the form of shaped slee...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GNOEVYKH A.N, BARANTSEVICH S.V, ABUBAKIROV V.F, KEJBAL A.V, TUGUSHEV R.SH
Format:	Patent
Sprache:	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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