Fixed cutter drill bit with non-cutting erosion resistant inserts
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United States of America Patent
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Jul 3, 2007
Grant Date -
Apr 26, 2007
app pub date -
Oct 21, 2005
filing date -
Oct 21, 2005
priority date (Note) -
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Abstract
The present invention is directed to a drill bit with non-cutting erosion resistant inserts. In one illustrative embodiment, the apparatus comprises a matrix drill bit body comprising a plurality of blades, a plurality of cutting elements positioned on each of the blades, the cutting elements defining a plurality of web regions, and a plurality of spaced apart, non-cutting erosion resistant inserts positioned along a face of at least one of the blades, at least a portion of each of the non-cutting erosion resistant inserts being positioned in front of one of the web regions.
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