发明名称 |
Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations |
摘要 |
An improved drill bit is provided with a sensor for monitoring an operating condition during drilling. A fastener system is provided for securing an erodible ball in a fixed position relative to a flow pathway until a predetermined operating condition is detected by the sensor, and for releasing the erodible ball into the flow pathway to obstruct the flow through at least one bit nozzle.
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申请公布号 |
US6540033(B1) |
申请公布日期 |
2003.04.01 |
申请号 |
US20010783265 |
申请日期 |
2001.02.06 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
SULLIVAN ERIC CHARLES;ZALESKI, JR. THEODORE EDWARD;SCHMIDT SCOTT RAY;NGUYEN DON QUY;ZADRAPA GLENN R.;LIN CHIH |
分类号 |
E21B10/08;E21B10/22;E21B12/02;E21B47/01;E21B47/06;E21B47/12;(IPC1-7):E21B7/18 |
主分类号 |
E21B10/08 |
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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