Downhole time domain reflectometry with optical components
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United States of America Patent
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Dec 6, 2016
Grant Date -
Apr 24, 2014
app pub date -
Oct 19, 2012
filing date -
Oct 19, 2012
priority date (Note) -
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Abstract
A disclosed system for downhole time domain reflectometry (TDR) includes a surface electro-optical interface, a downhole electro-optical interface, a fiber-optic cable that couples the surface electro-optical interface and the downhole electro-optical interface, and an electrical transmission line that extends from the downhole electro-optical interface into a wellbore environment to enable TDR operations. A described method for downhole TDR includes transmitting an optical signal to a downhole environment, converting the optical signal to an electrical signal in the downhole environment, reflecting the electrical signal using an electrical transmission line in the downhole environment, analyzing data corresponding to the reflected electrical signal, and displaying a result of the analysis.
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