Mill for use in a wellbore and method of milling

Details Mill for use in a wellbore and method of milling Mill for use in a wellbore and method of milling

E - Fixed Constructions

21

B

E21B 29/06 (2006.01) E21B 10/04 (2006.01)

Patent

CA 2307627

A mill for use in a wellbore said mill comprising a bore for accomodating a core, characterised in that at least a portion of said bore does not extend axially of said mill to, in use, facilitate separation of the core from a tubular being milled.

L'invention concerne une fraise utile dans un puits de forage, ladite fraise comportant un alésage servant à loger une carotte, et étant caractérisée par le fait qu'au moins une partie dudit alésage ne s'étend pas de manière axiale par rapport à ladite fraise afin de faciliter, à l'utilisation, la séparation de la carotte d'un matériel tubulaire en cours de fraisage.

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