Fixed-wavelength fiber optic telemetry for casing collar locator signals
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机译:用于外壳套环定位信号的固定波长光纤遥测
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摘要
A downhole tool, in some embodiments, comprises a casing collar locator (CCL) to generate a signal that indicates the presence of a casing discontinuity; and a modulator, coupled to the CCL, to modulate fixed-wavelength light in a fiber optic cable based on said signal.
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