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DISTRIBUTED NONDESTRUCTIVE INSPECTION SYSTEM AND METHOD FOR IDENTIFYING SLICKLINE CABLE DEFECTS AND MECHANICAL STRENGTH DEGRADATION TREND
DISTRIBUTED NONDESTRUCTIVE INSPECTION SYSTEM AND METHOD FOR IDENTIFYING SLICKLINE CABLE DEFECTS AND MECHANICAL STRENGTH DEGRADATION TREND
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机译:识别滑线缺陷和机械强度退化趋势的分布式无损检测系统及方法
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摘要
Disclosed embodiments include a distributed nondestructive inspection method and system for slickline cable structural defect and mechanical strength degradation inspection. One method may include transmitting a light pulse along an optical fiber embedded in a slickline cable. A reflected light signal is received from the optical fiber in response to the local strain induced refractive index variation. Defects and mechanical strength degradation may be determined by time-dependent time-domain and frequency-domain data analyses of the dynamic strain signals and power spectral density variation as a function of time and cable location.
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