Modified cutters and a method of drilling with modified cutters
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United States of America Patent
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Feb 14, 2012
Grant Date -
Dec 2, 2010
app pub date -
Jun 8, 2010
filing date -
Apr 30, 2004
priority date (Note) -
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Abstract
A cutter for a fixed cutter drill bit including a substrate and an ultrahard material layer disposed on an end surface of the substrate, the ultra hard material layer having an upper surface opposite the substrate end surface and a peripheral surface such that the upper surface intersects the peripheral surface along a peripheral edge. The peripheral edge continuously increases and decreases in height as measured from a plane perpendicular to a longitudinal axis of the cutter.
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