发明名称 |
DOWNHOLE ELECTRONICS PROTECTION APPARATUS |
摘要 |
A downhole electronic protection apparatus is described for protecting electronic circuitry permanently located inside oil and/or gas wells. In one embodiment a suitable protection device into every branch supply line from the common shared resource line connected to a downhole electronic circuit, the protection device having a resistance which changes with the amount of current flowing through the protection device. Other embodiments of the invention are described.
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申请公布号 |
WO0064024(A1) |
申请公布日期 |
2000.10.26 |
申请号 |
WO2000GB01377 |
申请日期 |
2000.04.17 |
申请人 |
EXPRO NORTH SEA LIMITED;MACLEAN, IAIN, MACIVER |
发明人 |
MACLEAN, IAIN, MACIVER |
分类号 |
E21B47/01;H02H9/02;(IPC1-7):H02H9/02 |
主分类号 |
E21B47/01 |
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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