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DOWNHOLE EM SENSING USING SAGNAC INTERFEROMETER FOR WELLBORE MONITORING
DOWNHOLE EM SENSING USING SAGNAC INTERFEROMETER FOR WELLBORE MONITORING
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机译:使用SAGNAC干涉仪进行井下监测的井下EM感测
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摘要
Method and apparatus are disclosed for use of a fiber-optic sensor loop for use within a wellbore; with a plurality of light sources optically coupled to the fiber-optic sensor loop; at least one electromagnetically sensitized region within the fiber-optic sensor loop; and a plurality of detectors optically coupled to the fiber-optic sensor loop; and using the sensing system to detect changes in a magnetic field within the wellbore.
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