发明名称 |
REAMER WITH IMPROVED HYDRAULICS FOR USE IN A WELLBORE |
摘要 |
A reamer bit for use in earth boring operations comprising a body, mounting elements on the bit body having rolling cutters, and nozzles configured to emit a cleaning spray that is angled with respect to the well bottom. The cleaning spray may be angled up to about 20° with respect to the well bottom. The reamer may further include a pilot bit on a drill pipe extending downward from the reamer body.
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申请公布号 |
WO2009086280(A3) |
申请公布日期 |
2009.09.24 |
申请号 |
WO2008US87972 |
申请日期 |
2008.12.22 |
申请人 |
BAKER HUGHES INCORPORATED;BUSKE, ROBERT, J. |
发明人 |
BUSKE, ROBERT, J. |
分类号 |
E21B4/02;E21B10/30;E21B10/38;E21B10/40 |
主分类号 |
E21B4/02 |
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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