Dual tubing string hanging apparatus

Details Dual tubing string hanging apparatus Dual tubing string hanging apparatus

E - Fixed Constructions

21

B

E21B 33/04 (2006.01) E21B 33/047 (2006.01)

Patent

CA 2175641

An apparatus for hanging a production tubing string and a guide string within a well casing having a wellhead. The apparatus includes a primary hanger shell for supporting the production tubing string and guide string in the well casing, a production mandrel received within the primary hanger shell and connected to theproduction tubing string to hang the production tubing string within the primaryhanger shell, and guide string hanging means connected to and hanging the guide string within the primary hanger shell. The guide string hanging means also allows the guide string to be removed from the well casing independently from the removal of the primary hanger shell, the production mandrel or the production tubing string.

Appareil de suspension d'une colonne de tubage de production et colonne guide dans un cuvelage de tête de puits. L'appareil comprend une enveloppe de suspension primaire pour supporter la colonne de tubage de production et la colonne guide dans le cuvelage, un mandrin de production entrant dans l'enveloppe de suspension primaire et relié à la colonne de tubage de production de façon à suspendre cette dernière dans l'enveloppe de suspension primaire, et un moyen de suspension de la colonne guide pour suspendre la colonne guide dans l'enveloppe de suspension primaire. Le moyen de suspension de la colonne guide permet également d'enlever la colonne guide du cuvelage sans enlever l'enveloppe de suspension primaire, le mandrin de production ou la colonne de tubage de production.

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