发明申请
- 专利标题: HYBRID DRILL BIT
- 专利标题(中): 混合钻头
-
申请号: US12465377申请日: 2009-05-13
-
公开(公告)号: US20100288561A1公开(公告)日: 2010-11-18
- 发明人: Anton F. Zahradnik , Ron D. McCormick , Rudolf C. Pessier , Jack T. Oldham , Michael S. Damschen , Don Q. Nguyen , Matt Meiners , Karlos B. Cepeda , Mark P. Blackman
- 申请人: Anton F. Zahradnik , Ron D. McCormick , Rudolf C. Pessier , Jack T. Oldham , Michael S. Damschen , Don Q. Nguyen , Matt Meiners , Karlos B. Cepeda , Mark P. Blackman
- 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
- 主分类号: E21B10/14
- IPC分类号: E21B10/14 ; E21B10/00
摘要:
A bit body is configured at its upper extent for connection into a drillstring. At least one fixed blade extends downwardly from the bit body, and has a radially outermost gage surface. A plurality of fixed cutting elements is secured to the fixed blade, preferably in a row at its rotationally leading edge. At least one bit leg is secured to the bit body and a rolling cutter is mounted for rotation on the bit leg. At least one stabilizer pad is disposed between the bit leg and the fixed blade, the stabilizer pad extending radially outward to substantially the gage surface. The radially outermost gage surface of each blade can extend axially downward parallel to the bit axis or angled (non-parallel), spirally or helically, relative to the bit axis.
公开/授权文献
- US08459378B2 Hybrid drill bit 公开/授权日:2013-06-11
信息查询