发明名称 |
MATRIX BIT BODIES WITH MULTIPLE MATRIX MATERIALS |
摘要 |
A drill bit that includes a bit body having a plurality of blades extending radially therefrom, the bit body comprising a first matrix region and a second matrix region, wherein the first matrix region is formed from a moldable matrix material; and at least one cutting element for engaging a formation disposed on at least one of the plurality of blades is disclosed.
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申请公布号 |
US2009283333(A1) |
申请公布日期 |
2009.11.19 |
申请号 |
US20080121575 |
申请日期 |
2008.05.15 |
申请人 |
LOCKWOOD GREGORY T;ZHANG YOUHE;SHEN YUELIN |
发明人 |
LOCKWOOD GREGORY T.;ZHANG YOUHE;SHEN YUELIN |
分类号 |
E21B10/60 |
主分类号 |
E21B10/60 |
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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