Detecting pipeline leaks using fiber optic sensing - …

Detecting pipeline leaks using fiber optic sensing1 Temperature-based leak detectionFiber optic sensing can detect and localize leaks continuously and accurately all along the length of the pipeline . It does this by Detecting the change of temperature which occurs when a pipe leaks . Leakage from a compressed gas line is identified by the development of a cold spot due to the pressure release (known as the Joule-Thomson effect). Whilst liquids such as crude oil, brine or heating system fluids are at a different temperature (typically higher) than the surrounding soil temperature, so a leak produces a temperature increase around the pipeline . The occurrence of local temperature event (1-2 meter long) encountered by the sensing cable anywhere along the pipeline could be the signature of a leak.

Detecting pipeline leaks using fiber optic sensing 1 Temperature-based leak detection Fiber optic sensing can detect and localize leaks continuously

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