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.
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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 |
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代理人 |
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主权项 |
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地址 |
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