Improved tubular running tool

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 19/06 (2006.01) B66C 1/54 (2006.01) E21B 19/07 (2006.01) E21B 19/16 (2006.01) E21B 31/20 (2006.01)

Patent

CA 2399786

An improved tubular running tool (14) is disclosed for use on a rotary or top drive drilling rig of the type for inserting and selectively, internally gripping a tubular which may be utilized to lift, lower, rotate, and torque tubulars, and which may be used to fill and/or circulate fluid in and through tubulars within a wellbore. The internal tubular running tool may be used as or in conjuction with fill-up and circulating tools and with cementing head wiper plug assemblies among other tools. The tubular running tool includes an improved moving mechanism (100) having a cylindrical pneumatic chamber (106) annularly positioned with respect to a barrel element (54) that forms an axial fluid pathway therethrough. A cylindrical piston (104) is moveable within the cylindrical chamber to thereby move a cylindrical piston rod (102) connected to gripping slips (62) such that the slips selectively engage an interior portion of the tubular member.

Cette invention concerne un outil de pose tubulaire (14) amélioré qui s'utilise sur un appareil de forage rotatif ou à entraînement par le haut pour insérer ou saisir par l'intérieur une colonne de tubage et qui peut servir à soulever, abaisser, faire tourner et serrer des éléments tubulaires, ou bien à injecter et/ou à faire circuler un fluide dans des éléments tubulaires à l'intérieur d'un puits de forage. L'outil de pose tubulaire interne peut s'employer tel quel ou conjointement avec divers outils de remplissage et de circulation de fluide ou des dispositifs de pose de bouchons de cimentation. Cet outil de pose tubulaire comporte un mécanisme mobile (100) amélioré doté d'une chambre pneumatique de forme cylindrique (106) disposée autour d'un élément cylindrique (54) formant un passage axial pour liquides. Un piston cylindrique (104) peut se déplacer à l'intérieur de la chambre cylindrique et agir sur une tige de piston cylindrique (102) reliée à des brides de fixation (62) qui viennent prendre sur une zone interne de l'élément tubulaire.

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