CUTTER ELEMENT WITH NON-RECTILINEAR CREST

摘要

A cutter element for a drill bit. The cutter element has a non-rectilinear crest . The non-rectilinear or curvilinear crest provides an advantageous distribution o f the cutting forces across the body of the cutter elements and thus improves bit life . The curvilinear crest also allows the cutter element to more efficiently lift the po rtion of the formation that is being cut, thereby improving cutting action in certain formati ons. The cutter elements can have either positive or non-positive draft and can be tungst en carbide inserts.