论文信息 - Downhole fiber optic real-time casing monitor

Downhole fiber optic real-time casing monitor

A fiber optic system for providing permanent downhole casing strain and shape monitoring is described. The optical sensing technique, deployment strategy, as well as lab and field test results are presented. The system is based on optical frequency domain reflectometry for reading out densely packed arrays of Bragg grating sensors. The feasibility of the approach is established and quantitative measurements of casing strain and shape are presented.

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