Method for preventing critical annular pressure buildup

Details Method for preventing critical annular pressure buildup Method for preventing critical annular pressure buildup

E - Fixed Constructions

21

B

E21B 17/08 (2006.01) E21B 33/035 (2006.01) E21B 41/00 (2006.01)

Patent

CA 2441757

A modified casing coupling that includes a receptacle, or receptacles, for a modular burst disk assembly. The burst disk assembly is retained by threads or a snap ring and is sealed by the retaining threads, or an integral o-ring seal. The disk fails at pressure specified by the user but before trapped annular pressure threatens the integrity of the outer casing. The design allows for the burst disk assembly to be installed on location or before pipe shipment.

L'invention concerne un accouplement de tubage modifié comprenant un ou plusieurs réceptacles pour un ensemble disque de rupture modulaire. L'ensemble disque de rupture est retenu au moyen de filets ou d'un anneau d'arrêt et fermé hermétiquement au moyen de filets de retenue ou d'un joint annulaire intégré. Le disque cède à une pression spécifiée par l'utilisateur, mais avant que la pression annulaire piégée ne menace l'intégrité du tubage extérieur. Cette conception permet de monter l'ensemble disque de rupture sur site ou avant l'expédition du conduit.

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