Seal cup for a wellbore tool and method

Details Seal cup for a wellbore tool and method Seal cup for a wellbore tool and method

E - Fixed Constructions

21

B

E21B 33/126 (2006.01)

Patent

CA 2508667

A seal cup and method is disclosed that can be used on a wellbore tool. The seal cup includes an external circumferential seal land adjacent the cup lip and an outer surface capable of permitting drainage away from the seal land of fluids, which may seep past the seal land. This acts against pressure invasion in the interfacial contacting region between the seal cup and the structure, for example, a wellbore liner against which it is sealed.

L'invention concerne un godet d'étanchéité et un procédé pouvant être utilisés sur un outil de puits de forage. Le godet d'étanchéité décrit dans cette invention comprend une zone d'étanchéité circonférentielle externe adjacente au couvercle du godet et une surface extérieure conçue pour permettre le drainage de fluides hors de la zone d'étanchéité, lesquels fluides peuvent suinter devant cette zone d'étanchéité. Ce mode de réalisation permet d'éviter l'apparition d'une pression dans la zone de contact d'interface entre le godet d'étanchéité et la structure, par exemple, une crépine, contre laquelle il est scellé.

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