Apparatus and method for aligning tubulars

E - Fixed Constructions – 21 – B

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E21B 19/16 (2006.01)

Patent

CA 2279256

An apparatus for aligning tubulars comprises a guide (217) and a socket centralizer (230) which are mounted on opposite sides of a power tong (202). In use, the power tong (202) is lowered so that the socket centralizer (230) lies circumjacent the socket (215) of a lower length of casing (220) and an upper length of casing (228) is lowered so that its pin (229) is brought into alignment with the socket (225) by the guide (217). The power tong (202) is then raised and the jaw assemblies applied to grip the upper length of casing (228) which is then rotated to screw the pin (229) into the socket (225) and make up the joint to the required torque.

La présente invention a trait à un appareil destiné à aligner du matériel tubulaire, comprenant un guide (217) et une douille centralisatrice (230) montés de part et d'autre d'une clé de vissage (202). Pendant le fonctionnement de l'appareil, la clé de vissage (202) est abaissée pour que la douille centralisatrice (230) soit placée en juxtaposition par rapport à la douille (215) du segment inférieur d'un tubage (220). Le segment supérieur du tubage (228) est abaissé jusqu'à ce que sa broche (229) s'aligne sur la douille (225) en traversant le guide (217). La clé de vissage (202) est ensuite élevée et les ensembles mâchoires sont positionnés pour saisir le segment supérieur du tubage (228), lequel est ensuite mis en rotation pour visser la broche (229) dans la douille (225) et réaliser l'assemblage avec le couple de serrage requis.

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