发明申请
- 专利标题： TOUGH CARBIDE BODIES USING ENCAPSULATED CARBIDES
- 专利标题（中）： 使用密封硬质合金的碳化碳体
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申请号： US12539412申请日： 2009-08-11
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公开(公告)号： US20100038147A1公开(公告)日： 2010-02-18
- 发明人: Alan W. Lockstedt , Gregory T. Lockwood
- 申请人： Alan W. Lockstedt , Gregory T. Lockwood
- 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
- 主分类号： E21B10/46
- IPC分类号： E21B10/46 ; E21B10/00 ; B22F1/00 ; B32B5/16
摘要：
A drill bit that includes a bit body having a plurality of blades extending radially therefrom, wherein at least a portion of the bit body comprises a first matrix region comprising a plurality of primary carbide particles having an average mean free path of at least about 10 microns; 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
- US08342268B2 Tough carbide bodies using encapsulated carbides 公开/授权日：2013-01-01
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