Apparatus for gripping a tubular on a drilling rig

An apparatus for gripping a tubular for use with a top drive includes a connector at one end for rotationally fixing the apparatus relative to the top drive; one or more gripping members at a second end for gripping the tubular; an actuator configured to move and hold the gripping members in contact...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Odell, II, Albert C, Heidecke, Karsten, Lorenz, Joerg, Giroux, Richard Lee, Thompson, Gary, Le, Tuong Thanh, Hayes, Michael, Boutwell, Jr., Doyle Fredric
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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