发明名称 |
broca de perfuração com cortadores ajustáveis |
摘要 |
A drill bit is provided that in one embodiment may include a blade profile having a cone section and one or more cutters on the cone section configured to retract from an extended position when an applied load on the drill bit reaches or exceeds a selected threshold. The drill bit is less aggressive when the cutters are in the retracted position compared to when the cutters are in the extended position. |
申请公布号 |
BRPI1008480(A2) |
申请公布日期 |
2016.03.15 |
申请号 |
BR2010PI08480 |
申请日期 |
2010.02.23 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
CHAD J. BEUERSHAUSEN |
分类号 |
E21B10/62;E21B10/54;E21B10/56 |
主分类号 |
E21B10/62 |
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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