E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 34/10 (2006.01)
Patent
CA 2650977
A method to release a control line for a safety valve removably disposed in a nipple (9) of a wellbore production tubing, comprises the steps of : - removing the safety valve from the nipple; - setting into the nipple a sealing tool (41) which sealingly connects the control line (10) and a mini tubing (42) running down into the production tubing; - increasing the pressure of a fluid into the mini tubing to cause fluid to flow into the control line through the sealing tool.
L'invention concerne un procédé permettant de libérer une conduite de commande pour une soupape de sûreté disposée de manière amovible dans un raccord (9) d'un tube de production de puits de forage, ledit procédé comportant les étapes qui consiste à : enlever la soupape de sûreté du raccord; placer dans le raccord un outil d'obturation (41) qui raccorde de manière étanche la conduite de commande (10) et un mini tube (42) descendant dans le tube de production; augmenter la pression d'un fluide dans le mini tube pour amener le fluide à s'écouler dans la conduite de commande, en passant par l'outil d'obturation.
Marks & Clerk
Weatherford France Sas
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