Boring or penetrating the earth – Bit or bit element – Specific or diverse material
Reexamination Certificate
2006-05-23
2006-05-23
Bagnell, David (Department: 3672)
Boring or penetrating the earth
Bit or bit element
Specific or diverse material
C175S426000, C051S295000
Reexamination Certificate
active
07048081
ABSTRACT:
A superabrasive cutting element for use with a drill bit for drilling subterranean formations and having a superabrasive table, or cutting face, in which a conglomerate of superabrasive particles is dispersed and bonded, or sintered, and in which at least one exposed cutting region of the superabrasive table develops a rough, asperital surface for improving the cutting efficiency of the drill bit, particularly in but not limited to relatively hard, relatively nonabrasive formations. The superabrasive table may include superabrasive particles of substantially differing size, or quality or a combination of differing size and quality. A rotary drill bit including cutting elements embodying the present invention is also disclosed.
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Cooley Craig H.
Skeem Marcus R.
Smith Redd H.
Bagnell David
Baker Hughes Incorporated
Stephenson Daniel P
TraskBritt
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