| 发明名称 |
In-well monitoring and flow control system |
| 摘要 |
An in-well monitoring and flow control system with an improved power supply. A separate high voltage (18) and low voltage power supply (23) is provided together with a cable (14) which has at least two separate cores; one core (24) for high voltage power and the other core (26) for low voltage power and control monitoring communications.
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| 申请公布号 |
US6877557(B2) |
申请公布日期 |
2005.04.12 |
| 申请号 |
US20030221054 |
申请日期 |
2003.02.26 |
| 申请人 |
EXPRO NORTH SEA LTD. |
发明人 |
RICHARDS ANDREW;WEBSTER WILLIAM GEORGE NIGEL PARKINSON |
| 分类号 |
E21B17/20;E21B34/16;E21B47/00;E21B47/12;H04B3/44;(IPC1-7):E21B47/00 |
主分类号 |
E21B17/20 |
| 代理机构 |
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