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Optical fiber sensor, seismic survey method, measurement method of oil and natural gas reservoir distribution, strain detection method, and method of locating fracture in formation
Optical fiber sensor, seismic survey method, measurement method of oil and natural gas reservoir distribution, strain detection method, and method of locating fracture in formation
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机译:光纤传感器,地震勘探方法,油气储层分布的测量方法,应变检测方法和地层裂缝定位方法
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摘要
An optical fiber sensor includes: a transmitting unit configured to output two lights into an optical fiber, wavelengths of the two lights being different from each other at a specific time, and at least one of the wavelengths of the two lights varying with time; and a measuring unit configured to receive back-scattered light output from the optical fiber and detect a temporal variation of an optical phase at an arbitrary interval in a longitudinal direction of the optical fiber by measuring measure an interference state of the two lights.
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