发明名称 |
Method and system for calibrating streamer electrodes in a marine electromagnetic survey system |
摘要 |
A marine electromagnetic sensor system includes a sensor cable having at least one electromagnetic sensor thereon. A first calibration electrode is disposed on the cable on one side of the sensor. A second calibration electrode is disposed on the cable on an opposite side of the sensor. A calibration power supply is coupled to the first and second calibration electrodes. A measuring circuit is coupled to the sensor. A method for calibrating marine electromagnetic survey electrodes includes imparting electric current between calibration electrodes disposed at spaced apart locations on a cable deployed in the water. Voltages impressed across a pair of electrodes disposed on the cable between the calibration electrodes are detected in response to the current. A change in sensitivity of the at least one pair of electrodes is determined using the detected voltages. |
申请公布号 |
US8198899(B2) |
申请公布日期 |
2012.06.12 |
申请号 |
US20090381689 |
申请日期 |
2009.03.16 |
申请人 |
LINDQVIST ULF PETER;PGS GEOPHYSICAL AS |
发明人 |
LINDQVIST ULF PETER |
分类号 |
G01V3/08;G01R35/00;G01V3/15 |
主分类号 |
G01V3/08 |
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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