发明名称 COATING ON PDC/TSP CUTTER FOR ACCELERATED LEACHING
摘要 A cutting element that includes a polycrystalline diamond layer having a cutting face and a diamond layer side surface, a substrate attached to the polycrystalline diamond layer, the substrate having a bottom surface and a substrate side surface, an interface between the diamond layer and the substrate, and a mask covering at least the bottom surface and the substrate side surface of the cutting element is disclosed.
申请公布号 WO2012135497(A2) 申请公布日期 2012.10.04
申请号 WO2012US31208 申请日期 2012.03.29
申请人 SMITH INTERNATIONAL INC.;TESSITORE, TED;GRIFFO, ANTHONY;SHEN, YUELIN;ZHANG, YOUHE;KESHAVAN, MADAPUSI K. 发明人 TESSITORE, TED;GRIFFO, ANTHONY;SHEN, YUELIN;ZHANG, YOUHE;KESHAVAN, MADAPUSI K.
分类号 E21B10/46;E21B10/567;E21B10/573 主分类号 E21B10/46
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