Sliding sleeve sub and method and apparatus for wellbore...

E - Fixed Constructions – 21 – B

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Details

E21B 33/124 (2006.01) E21B 34/14 (2006.01)

Patent

CA 2760107

A tubing string assembly is disclosed for fluid treatment of a wellbore The tubing string can be used for staged wellbore fluid treatment where a selected segment of the wellbore is treated, while other segments are sealed off The tubing string can also be used where a ported tubing string is required to be run-m in a pressure tight condition and later is needed to be in an open-port condition A sliding sleeve in a tubular has a driver selected to be acted upon by an inner bore conveyed actuating device, the driver drives the generation of a ball stop on the sleeve.

L'invention concerne un ensemble colonne de production pour le traitement d'un fluide de puits. La colonne de production peut être utilisée pour traiter le fluide de puits par étapes, un segment sélectionné du puits étant traité, alors que les autres segments sont confinés. La colonne de production peut également être utilisée lorsqu'une colonne de production à orifices est requise pour fonctionner dans une condition étanche à la pression et ensuite est requise pour être utilisée dans une condition d'orifice ouvert. Un manchon coulissant dans élément tubulaire comporte un dispositif de commande sélectionné sur lequel doit agir un dispositif d'actionnement acheminé via un trou interne, le dispositif de commande entraînant la génération d'une butée à billes sur le manchon.

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