发明授权
- 专利标题： Matrix bit bodies with multiple matrix materials
- 专利标题（中）： 具有多个矩阵材料的矩阵位体
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申请号： US12121575申请日： 2008-05-15
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公开(公告)号： US07878275B2公开(公告)日： 2011-02-01
- 发明人: Gregory T. Lockwood , Youhe Zhang , Yuelin Shen
- 申请人： Gregory T. Lockwood , Youhe Zhang , Yuelin Shen
- 申请人地址： US TX Houston
- 专利权人： Smith International, Inc.
- 当前专利权人： Smith International, Inc.
- 当前专利权人地址： US TX Houston
- 代理机构： Osha Liang LLP
- 主分类号： E21B10/42
- IPC分类号： E21B10/42
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.
公开/授权文献
- US20090283333A1 MATRIX BIT BODIES WITH MULTIPLE MATRIX MATERIALS 公开/授权日：2009-11-19