Externally activated seal system for wellhead

Details Externally activated seal system for wellhead Externally activated seal system for wellhead

E - Fixed Constructions

21

B

E21B 33/02 (2006.01) E21B 23/00 (2006.01)

Patent

CA 2700574

A method and apparatus for installing casing hangers in a wellbore utilizing an externally activated gripping system to temporarily bind wearbushings secured to casing and tubing hangers in order to lock-down such hangers during various wellbore drilling activities, thereby minimizing the size of landing shoulders and eliminating additional lock down equipment and simplifying running procedures.

L'invention porte sur un procédé et sur un appareil pour installer des suspensions de tubage dans un puits de forage à l'aide d'un système de préhension à activation externe pour relier temporairement des douilles de protection fixées aux suspensions de tubage dans le but de verrouiller de telles suspensions pendant diverses activités de forage de puits de forage, réduisant ainsi au minimum la dimension des épaulements de support, éliminant un équipement de verrouillage supplémentaire et simplifiant des procédures de fonctionnement.

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