TOP DRIVE OPERATED CASING RUNNING TOOL

Spring loaded dogs are attached to the housing to engage the casing internally or externally to facilitate extension or retraction of the slips that selectively grab the topmost of a string of casing. When the tool is suspended from the top drive, its components are rotationally locked to facilitate...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HICKL, MATTHEW J, MULLINS, ALBERT AUGUSTUS
Format:	Patent
Sprache:	eng ; fre
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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