Earth boring tools and methods of making earth boring tools...

Details Earth boring tools and methods of making earth boring tools... Earth boring tools and methods of making earth boring tools...

E - Fixed Constructions

21

B

E21B 10/36 (2006.01) E21B 10/46 (2006.01)

Patent

CA 2730496

Earth-boring tools comprise a face and a plurality of cut-ting elements disposed on at least a portion of the face. An impact materi-al is positioned on at least one portion of the body and has a relative ex-posure equal to or greater than at least some of the cutting elements of the plurality of cutting elements. The impact material comprises a material having a lower abrasion resistance than the body. Methods of making and methods of using such earth-boring tools are also disclosed.

Outils de forage du sol, comprenant une face et une pluralité déléments de coupe disposés sur au moins une partie de la face. Un matériau dimpact est positionné sur au moins une partie du corps et présente une exposition relative égale ou supérieure à au moins certains des éléments de coupe de la pluralité des éléments de coupe. Le matériau dimpact comprend un matériau qui présente une résistance à labrasion inférieure à celle du corps. Linvention concerne également des procédés de fabrication et des procédés dutilisation doutils de forage du sol de ce type.

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