发明名称 |
DISPERSION OF HARDPHASE PARTICLES IN AN INFILTRANT |
摘要 |
Composite materials for use with a drill bit for drilling a borehole in earthen formations. The composite material comprises a first pre-infiltrated hardphase constituent and a second pre-infiltrated hardphase constituent. The second pre-infiltrated hardphase constituent is a carbide which comprises at least 0.5 weight % of a binder and at least about 1% porosity. The composite material further comprises an infiltrant.
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申请公布号 |
US2013092450(A1) |
申请公布日期 |
2013.04.18 |
申请号 |
US201113271415 |
申请日期 |
2011.10.12 |
申请人 |
SRESHTA HAROLD A.;NATIONAL OILWELL DHT, L.P. |
发明人 |
SRESHTA HAROLD A. |
分类号 |
E21B10/36;B24D3/06;B24D18/00 |
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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