发明名称 |
APPARATUS AND METHOD FOR CONTROLLING FLUID FLOW IN A ROTARY DRILL BIT |
摘要 |
An apparatus for drilling a borehole in an earth formation is disclosed. The apparatus includes: an earth-boring rotary drill bit including a bit body having a plurality of cutters engagable with a subterranean earth formation; a fluid conduit disposed in the bit body, the fluid conduit being in fluid communication with a source of drilling fluid and configured to receive a portion of the drilling fluid; a nozzle extending between the fluid conduit and a surface of the bit body, the nozzle configured to apply a stream of the portion of the drilling fluid to a first location of the surface; and a valve assembly including an actuator and a valve, the actuator configured to move the valve and divert a flow path of the portion of the drilling fluid, thereby diverting at least part of the stream to a second location on the surface. |
申请公布号 |
WO2010053905(A2) |
申请公布日期 |
2010.05.14 |
申请号 |
WO2009US63083 |
申请日期 |
2009.11.03 |
申请人 |
BAKER HUGHES INCORPORATED;TEODORESCU, SORIN, GABRIEL |
发明人 |
TEODORESCU, SORIN, GABRIEL |
分类号 |
E21B10/18;E21B10/60 |
主分类号 |
E21B10/18 |
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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