发明名称 |
DRILL BIT WITH A FLOW INTERRUPTER |
摘要 |
A drill bit is disclosed, comprising: a drill bit head having a cutting face with one or more fixed cutting elements; a flow passage extending through the drill bit head to the cutting face; a flow interrupter within the drill bit head and positioned to interrupt flow of fluid through the flow passage; and a power section connected to drive the flow interrupter and cause, in operation, variable flow of fluid through the flow passage. A method of drilling is also disclosed comprising: flowing fluid through a flow passage extending through a drill bit head to a cutting face of the drill bit head, the cutting face having one or more fixed cutting elements; and driving a flow interrupter within the drill bit head with a power section to interrupt the flow of fluid through the flow passage and cause variable flow of fluid through the flow passage.
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申请公布号 |
US2011000716(A1) |
申请公布日期 |
2011.01.06 |
申请号 |
US20090638175 |
申请日期 |
2009.12.15 |
申请人 |
COMEAU LAURIER E;HARELAND GEIR;JANZEN JEFF;KAMINSKI JOHN |
发明人 |
COMEAU LAURIER E.;HARELAND GEIR;JANZEN JEFF;KAMINSKI JOHN |
分类号 |
E21B10/60;E21B7/00;E21B10/42 |
主分类号 |
E21B10/60 |
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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