发明名称 |
Casing Drilling Bottom Hole Assembly Having Wireless Power And Data Connection |
摘要 |
Various embodiments of methods and systems for wireless power and/or data communications transmissions to a sensor subassembly above a mud motor in a bottom hole assembly are disclosed. Power and/or data are supplied by rotary modulator and power generation system positioned above the mud motor. Wires may connect to an annular coil. Power and/or communications are transmitted through the annular coil to an inductively coupled second, mandrel coil that is attached to the rotor. By leveraging resonantly tuned circuits and impedance matching techniques for the coils, power and/or data can be transmitted efficiently from one coil to the other despite relative movement and misalignment of the two coils. |
申请公布号 |
US2014090898(A1) |
申请公布日期 |
2014.04.03 |
申请号 |
US201313797502 |
申请日期 |
2013.03.12 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION;SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
MORIARTY KEITH A.;GADOT RAPHAEL;CLARK BRIAN OLIVER |
分类号 |
E21B7/04 |
主分类号 |
E21B7/04 |
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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