发明名称 |
Signal processing in downhole equipment |
摘要 |
A method of transmitting power and/or data between downhole equipment and a surface through a circuit including an alternating current (AC) powered motor and its associated power cable for powering the downhole equipment is disclosed, where the data is transmitted at frequencies outside the normal operating ranges that are thought acceptable. Associated circuitry and apparatus for performing the method are disclosed.
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申请公布号 |
US8344904(B2) |
申请公布日期 |
2013.01.01 |
申请号 |
US20080527843 |
申请日期 |
2008.02.19 |
申请人 |
ZENITH OILFIELD TECHNOLOGY LIMITED;SKINNER SANDY;MANNING MICHAEL |
发明人 |
SKINNER SANDY;MANNING MICHAEL |
分类号 |
G01V3/00;E21B47/12 |
主分类号 |
G01V3/00 |
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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