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published: 19.10.2015

BOTDA-based DTS robustness demonstration for subsea structure monitoring applications Paper 9634-122

SPIE 24th International Conference on Optical Fibre Sensors 28 September - 2 October 2015, Curitiba, Brazil

We demonstrate that BOTDA is the equipment of choice for Distributed Temperature Sensing (DTS) when challenging components such as Wet Mate Connectors (WMC) and Fiber Optic Rotary Joints (FORJ) are inserted in the sensing line. The parameter of Temperature Measurement Dead Zone (TMDZ) is introduced to support the discussion and quantify possible impairments. A laboratory qualification test with real FORJ and WMC is conducted confirming the theoretical expectations. The system is then implemented offshore demonstrating that FORJ and WMC do not affect the sensing operation in field environment.

 

DTS, temperature, wet mate connector, fiber optic rotary joint, FORJ, optical slip ring, subsea asset monitoring