Boring or penetrating the earth – Bit or bit element – Specific or diverse material
Reexamination Certificate
2011-06-07
2011-06-07
Bomar, Shane (Department: 3676)
Boring or penetrating the earth
Bit or bit element
Specific or diverse material
Reexamination Certificate
active
07954571
ABSTRACT:
A drill bit includes a bit body having a face on which two different types of cutters are disposed, the first type being cutting elements suitable for drilling at least one subterranean formation and the second type being at least one of an abrasive cutting structure and an abrasive cutting element suitable for drilling through a casing shoe, reamer shoe, casing bit, casing or liner string and cementing equipment or other components, as well as cement. Methods of forming earth-boring tools are also disclosed.
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DeGeorge Jarod
Doster Michael L.
Isbell Matthew R.
Jurica Chad T.
McClain Eric E.
Baker Hughes Incorporated
Bomar Shane
Michener Blake
TraskBritt
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