Drill bit cutter element having multiple cusps

Details Drill bit cutter element having multiple cusps Drill bit cutter element having multiple cusps

E - Fixed Constructions

21

B

E21B 10/08 (2006.01) E21B 10/16 (2006.01) E21B 10/52 (2006.01) E21B 10/56 (2006.01)

Patent

CA 2457648

Cutter elements for use in rolling cones rock bits are disclosed having a crown that includes multiple, spaced-apart cusps for enhancing formation removal by creating overlapping Hertzian contact zones. The cusps may be partially dome-shaped, bean shaped or otherwise. The cutter elements provide multiple cutting edges for engaging the formation and may have differing radii and extension length as suitable for particular applications.

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