发明名称 |
Drill string telemetry system |
摘要 |
A drill string telemetry system comprises an acoustic reflector mounted to the surface end of the drill string. The reflector is adapted to reflect surface-generated torsional acoustic noise away from the drill string. The reflector attenuates the power of 500 Hz torsional acoustic noise power impinging on the reflector by a factor of at least 2.
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申请公布号 |
US2003179101(A1) |
申请公布日期 |
2003.09.25 |
申请号 |
US20020318756 |
申请日期 |
2002.12.13 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
JENKINS CHARLES RODERICK |
分类号 |
E21B47/16;(IPC1-7):G01V3/00 |
主分类号 |
E21B47/16 |
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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