Running tool for expandable liner hanger and associated methods

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 43/10 (2006.01) E21B 43/08 (2006.01)

Patent

CA 2684547

A running tool includes subassemblies which release the running tool from the liner hanger in response to application of alternating tensile and compressive forces after application of left-hand torque. A running tool includes subassemblies which set the liner hanger in response to left-hand torque followed by increased pressure, and in response to increased pressure without prior left- hand torque being applied. A running tool includes threaded connections, without torque transmitted through the running tool being transmitted by the threaded connections. A method of setting a liner hanger includes applying a compressive force to the running tool; then applying left- hand torque to the running tool; and then applying a tensile force to the running tool. A method of releasing a liner hanger includes applying left-hand torque to the running tool; and then releasing the running tool from the liner hanger by applying a tensile force to the running tool.

L'invention concerne un outil de pose qui inclut des sous-ensembles qui libèrent l'outil de pose du dispositif de suspension de revêtement en réponse à l'application de forces alternant traction et compression après l'application d'un couple vers la gauche. Un outil de pose inclut des sous-ensembles qui règlent le dispositif de suspension de revêtement en réponse au couple vers la gauche qui est suivi d'une pression en augmentation, et en réponse à une pression en augmentation avant qu'un couple vers le gauche soit appliqué. Un outil de pose inclut des connexions filetées, sans que le couple transmis par l'intermédiaire de l'outil de pose soit transmis par les connexions filetées. Un procédé de réglage d'un dispositif de suspension de revêtement inclut l'application d'une force de compression sur l'outil de pose puis l'application d'un couple vers la gauche sur l'outil de pose, enfin l'application d'une force de traction sur l'outil de pose. Un procédé de libération d'un dispositif de suspension de revêtement inclut l'application d'un couple vers la gauche sur l'outil de pose puis la libération de l'outil de pose du dispositif de suspension de revêtement en appliquant une force de traction à l'outil de pose.

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