APPARATUS AND METHOD FOR INJECTING TUBING INTO A WELL BORE

An apparatus and method for moving a tubing along a path, according to which the tubing is engaged by an outer chain which is driven to advance the tubing. The chain is adapted to be deflected radially in response to an increase in the diameter of the tubing, and a plate is compressed in response to...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DOMANN, ROBERT E, ROSINE, RANDY S
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CAPSTANS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HAULING HOISTING HOISTS LIFTING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS TACKLES, e.g. PULLEY BLOCKS TRANSPORTING WINCHES
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Beschreibung
Zusammenfassung:	An apparatus and method for moving a tubing along a path, according to which the tubing is engaged by an outer chain which is driven to advance the tubing. The chain is adapted to be deflected radially in response to an increase in the diameter of the tubing, and a plate is compressed in response to the deflection of the chain to accommodate the variation in diameter. Un appareil et une méthode permettant de déplacer un tube le long d'un trajet, selon lequel le tube est engrené par une chaîne extérieure qui est entraînée pour faire avancer le tube. La chaîne est adaptée pour être déviée radialement en réponse à une augmentation du diamètre du tube, et une plaque est comprimée en réponse à la déviation de la chaîne pour prendre en compte la variation de diamètre.