A cutting insert for use in a wellbore milling tool

Details A cutting insert for use in a wellbore milling tool A cutting insert for use in a wellbore milling tool

E - Fixed Constructions

21

B

E21B 29/00 (2006.01)

Patent

CA 2230985

A cutting insert (10) for use in a wellbore milling tool comprising a base which can be mounted on a surface of said wellbore milling tool and a plurality of cutting surfaces (25, 26, 27) which are separated from one another 13y linear boundaries (16, 18). This construction helps facilitate the formation of relatively narrow chips.

Cette invention concerne une pièce coupante rapportée (10) destinée à une fraise de meulage de puits de forage. Cette pièce comporte d'une part une base que l'on peut monter à la surface d'une fraise de meulage de puits de forage et d'autre part une pluralité de surfaces coupantes (25, 26, 27) séparées les unes des autres par des démarcations linéaires (16, 18). Cette configuration permet de faciliter la formation d'éclats relativement étroits.

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