| 发明名称 |
Internal power source for downhole detection system |
| 摘要 |
A drill string is equipped with a downhole assembly having an instrumented sub and a drill bit. The instrumented sub has a power source that requires no electrical chemical batter. A mass-spring system is used, which during drilling causes a magnet to oscillate past a coil. This induces current which is used to power downhole instruments. |
| 申请公布号 |
US2002148648(A1) |
申请公布日期 |
2002.10.17 |
| 申请号 |
US20010040928 |
申请日期 |
2001.10.26 |
| 申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
SCHULTZ ROGER L.;DE JESUS ORLANDO;OSBORNE ANDREW J. |
| 分类号 |
E21B12/02;E21B28/00;E21B41/00;E21B44/00;E21B47/18;(IPC1-7):E21B4/00 |
主分类号 |
E21B12/02 |
| 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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