Earth-boring bit with an advantageous insert cutting structure

Details Earth-boring bit with an advantageous insert cutting structure Earth-boring bit with an advantageous insert cutting structure

1992-12-17

1994-06-28

Britts, Ramon S.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

1754201, E21B 1000

Patent

active

053238656

ABSTRACT:
An earth-boring bit is provided with three cutters, at least one of the three cutters are provided with a heel cutting structure defined by a plurality of heel inserts having crests thereon, the heel inserts being disposed in at least one substantially circumferential heel row and the crests of the heel inserts being generally aligned traversely to the rotational axis of the cutter. At least another of the cutters is provided with a substantially circumferential row of axial inserts having crests thereon disposed proximally to the base of the cutter, the crests of the axial inserts being generally aligned with the axis of rotation of the cutter.

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