Apparatus and method for severing a wellbore tubular

Details Apparatus and method for severing a wellbore tubular Apparatus and method for severing a wellbore tubular

E - Fixed Constructions

21

B

E21B 33/06 (2006.01)

Patent

CA 2649771

An apparatus (301) for severing a wellbore tubular, which apparatus comprises at least one blade (310) for shearing said wellbore tubular, characterised in that said apparatus further comprises a projection (312) , in use moveable so as to reduce the structural strength of said wellbore tubular in an area where said wellbore tubular is to be severed.

L'invention concerne un appareil (301) permettant de séparer un élément tubulaire de puits ; l'appareil comprend au moins une lame (310) permettant de couper l'élément tubulaire de puits ; l'appareil est caractérisé par le fait qu'il comprend en outre une projection (312), mobile pendant l'utilisation, permettant de réduire la résistance structurale de l'élément tubulaire de puits dans une zone où le élément tubulaire de puits doit être séparé.

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