发明名称 |
OPTIMIZING ELECTROMAGNETIC TELEMETRY TRANSMISSIONS |
摘要 |
<p>An electromagnetic telemetry system adjusts telemetry parameters which may include carrier frequency, signal amplitude and/or data encoding protocol to achieve reliable data transmission and to conserve power. In some embodiments, sweep signals transmit a range of carrier frequencies and the parameters are determined in part by analyzing the received sweep signals. In some embodiments, different parameters are selected automatically based on a mode of drilling.</p> |
申请公布号 |
WO2015027340(A1) |
申请公布日期 |
2015.03.05 |
申请号 |
WO2014CA50825 |
申请日期 |
2014.08.28 |
申请人 |
EVOLUTION ENGINEERING INC. |
发明人 |
LIU, JILI;XU, MINGDONG;LOGAN, AARON W.;SWITZER, DAVID A.;VARGA, MONICA E. |
分类号 |
E21B47/13;E21B44/00;G08C17/02;H04W52/00;H04W80/00 |
主分类号 |
E21B47/13 |
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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