发明名称 |
Matrix drill 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. |
申请公布号 |
GB2471823(B) |
申请公布日期 |
2013.03.06 |
申请号 |
GB20100019568 |
申请日期 |
2009.05.07 |
申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
GREGORY T LOCKWOOD;YOUHE ZHANG;YUELIN SHEN |
分类号 |
E21B10/42;C22C1/05;C22C29/06;C22C29/08;E21B10/55 |
主分类号 |
E21B10/42 |
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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