发明名称 Hardmetal for use in oil and gas drilling applications
摘要 A down hole drill bit is disclosed that includes a plurality of cutting elements mounted on a cutting structure. At least one of the plurality of cutting elements comprises a wear resistant material, the wear resistant material comprising coarse grains disposed in a binder matrix phase, wherein the binder matrix phase comprises nanoparticles uniformly dispersed therein.
申请公布号 US8561731(B2) 申请公布日期 2013.10.22
申请号 US20090566428 申请日期 2009.09.24
申请人 KESHAVAN MADAPUSI K.;LIANG DAH-BEN;SMITH INTERNATIONAL, INC. 发明人 KESHAVAN MADAPUSI K.;LIANG DAH-BEN
分类号 E21B10/36 主分类号 E21B10/36
代理机构 代理人
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