METHOD AND APPARATUS FOR FORMING TUBULAR CONNECTIONS

The apparatus of the present invention is directed to a replacement cage assembly (106) to modify a conventional power tong (100) to enable the power tong to grip and rotate smaller diameter tubular segments (90). The method of the invention is directed to modifying a power tong (100) to grip and ro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BOURGEOIS, JOSHUA, KYLE, BOULIGNY, VERNON, J
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MEASURING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	The apparatus of the present invention is directed to a replacement cage assembly (106) to modify a conventional power tong (100) to enable the power tong to grip and rotate smaller diameter tubular segments (90). The method of the invention is directed to modifying a power tong (100) to grip and rotate a tubular segment of a diameter smaller than could be gripped by the unmodified power tong (100). The invention provides a rotary gear insert (240), having an interior second cam surface, rotatably captured intermediate an upper cage plate (230) and a lower cage plate (210) and slidably receivable within the conventional rotary gear of the power tong (100) and to cam and rotate a plurality of replacement gripping jaws (220, 221) pivotally captured adjacent the second cam surface (240) and intermediate the upper cage plate (230) and the lower cage plate (210).