Device with assembly and installation in casing column coupled to a mandrel for disobstructing a drilling well

To clear the probing shaft. Comprised of an assembled spin set from a vented axle (6) with seals, coupled to an upper head (34) with an eyelet (41) and fluid input (40). From the threaded lower end (7) of the axle (6) to the fluid input (40), an inner fluid passage is formed in the device. After fix...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Pereira Dos Santos, Mario Cesar, Cavalheiro, Antonio Sergio, Scalon Cotello, Jose Roberto, Soares Eisele, Ronaldo, Rocha, Leandro Diniz Brandao, Suss Junior, Hamilton
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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