Boring or penetrating the earth – Bit or bit element – Specific or diverse material
Patent
1994-12-09
1997-01-07
Neuder, William P.
Boring or penetrating the earth
Bit or bit element
Specific or diverse material
E21B 1046
Patent
active
055907296
ABSTRACT:
A cutting element for a rotary drill bit for subterranean drilling, including a substantially planar table of superhard material having a cutting face and a cutting edge. The table may be reinforced against bending with one or more strut portions extending from the rear of the table to the rear of the substrate and at least partially across the cutting element. The strut portions may be integral with the diamond table, or separately fabricated and of another material. The strut portions, in addition to or in lieu of providing stiffness to the superhard table, may also serve to enhance heat transfer away from the cutting face and cutting edge of the superhard table. The structure supporting the cutting element on the drill bit and the body of the drill bit itself may be additionally configured to include structures to facilitate heat transfer away from the superhard table.
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Cooley Craig H.
Hansen Wayne R.
Tibbitts Gordon A.
Baker Hughes Incorporated
Neuder William P.
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