Boring or penetrating the earth – Bit or bit element – Specific or diverse material
Reexamination Certificate
2006-01-11
2008-10-28
Wright, Giovanna C (Department: 3672)
Boring or penetrating the earth
Bit or bit element
Specific or diverse material
C175S426000
Reexamination Certificate
active
07441612
ABSTRACT:
A fixed cutter drill bit and a method for designing a fixed cutter drill bit includes simulating the fixed cutter drill bit drilling in an earth formation. A performance characteristic of the simulated fixed cutter drill bit is determined. A side rake angle distribution of the cutters is adjusted at least along a cone region of a blade of the fixed cutter drill bit to change the performance characteristic of the fixed cutter drill bit.
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Cariveau Peter Thomas
Durairajan Bala
Huang Sujian J.
Osha & Liang LLP
Smith International Inc.
Wright Giovanna C
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