发明授权
- 专利标题： Dynamically stable hybrid drill bit
- 专利标题（中）： 动力稳定的混合钻头
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申请号： US12179915申请日： 2008-07-25
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公开(公告)号： US07819208B2公开(公告)日： 2010-10-26
- 发明人: Rudolf Carl Pessier , Don Q. Nguyen , Michael Steven Damschen , Michael L. Doster
- 申请人： Rudolf Carl Pessier , Don Q. Nguyen , Michael Steven Damschen , Michael L. Doster
- 申请人地址： US TX Houston
- 专利权人： Baker Hughes Incorporated
- 当前专利权人： Baker Hughes Incorporated
- 当前专利权人地址： US TX Houston
- 代理机构： Locke Lord Bissell & Liddell LLP
- 主分类号： E21B10/14
- IPC分类号： E21B10/14
摘要：
An earth-boring bit comprising a bit body configured at its upper extent for connection into a drillstring. A selected number of fixed blades extend downward from the bit body and a selected number of rolling cutters are mounted for rotation on the bit body. A plurality of rolling-cutter cutting elements are arranged on each rolling cutter and a plurality of fixed-blade cutting elements are arranged on each fixed blade. The selected number of fixed blades exceeds the selected number of rolling cutters by at least one.
公开/授权文献
- US20100018777A1 DYNAMICALLY STABLE HYBRID DRILL BIT 公开/授权日：2010-01-28
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