Data processing: structural design – modeling – simulation – and em – Simulating nonelectrical device or system – Mechanical
Reexamination Certificate
2006-10-12
2008-11-25
Rodriguez, Paul L (Department: 2123)
Data processing: structural design, modeling, simulation, and em
Simulating nonelectrical device or system
Mechanical
C175S327000
Reexamination Certificate
active
07457734
ABSTRACT:
Disclosed is a method of comparing the relative lateral stability among drill bits (that is, the tendency for a bit to whirl). This allows improved bit selection in applications where whirl is apparent. Because there will likely be many different acceptable bit designs produced by the above method, the comparison of the regenerative forces among these bits allows a customer to make a more informed choice between stability and other performance features among a range of bit designs.
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Jarvis Brian Peter
Johnson Simon
Daly Jeffrey E.
Jacob Mary C
ReedHycalog (UK) Limited
Rodriguez Paul L
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