Well tubing drain tool adapted for use with power tongs and...

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 17/02 (2006.01) E21B 17/042 (2006.01) E21B 19/16 (2006.01)

Patent

CA 2743294

A well tool adapted to be connected with and disconnected from a well tubing using a power tong device of the type having a pair of tongs, a gripping span between the pair of tongs, and a maximum clearance diameter for an object passing through the tongs. The well tool includes a tubular mandrel. The tubular mandrel has a maximum mandrel diameter which is no greater than the maximum clearance diameter. The tubular mandrel includes a first mandrel connector which is adapted for connecting the tubular mandrel with a first well tubing in order to provide a first connection. The tubular mandrel is configured so that when the power tong device grips a tong gripping surface on the tubular mandrel and the first well tubing in order to connect the tubular mandrel and the first well tubing, the first connection is located within the gripping span.

L'invention porte sur un outil de puits adapté à être raccordé à une colonne de production de puits et désolidarisé de celle-ci à l'aide d'un dispositif de clés de vissage automatique du type comportant une paire de clés à tiges, ayant une portée de saisie entre les clés à tiges de la paire, et ayant un diamètre d'espacement maximal pour un objet passant à travers les clés à tiges. L'outil de puits comprend un mandrin tubulaire. Le mandrin tubulaire a un diamètre de mandrin maximal qui n'est pas supérieur au diamètre d'espacement maximal. Le mandrin tubulaire comprend un premier raccord de mandrin qui est adapté pour connecter le mandrin tubulaire à une première colonne de production de puits afin d'établir un premier raccord. Le mandrin tubulaire est configuré de telle sorte que, lorsque le dispositif de clés de vissage automatique saisit une surface de saisie de clé à tiges sur le mandrin tubulaire et la première colonne de production de puits afin de raccorder le mandrin tubulaire et la première colonne de production de puits, le premier raccord est situé à l'intérieur de la portée de saisie.

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