Fiber optic pressure and temperature sensor for down-hole applications

Michel Lequime; Catherine Lecot; Philippe Jouve; Jacques Pouleau

doi:10.1117/12.45997

1 August 1991 Fiber optic pressure and temperature sensor for down-hole applications

Michel Lequime, Catherine Lecot, Philippe Jouve, Jacques Pouleau

Proceedings Volume 1511, Fiber Optic Sensors: Engineering and Applications; (1991) https://doi.org/10.1117/12.45997
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands

Abstract

A fiber optic sensor adapted to the permanent monitoring of oil wells is described, providing a simultaneous determination of pressure and temperature in a down-hole environment. This sensor includes two interferometric transducers in a serial configuration (Fabry-Perot type for the pressure, including a deformable membrane, and birefringent type for the temperature) and uses spectral modulation encoding techniques to recover at large distances both information without cross-talk and with a perfect down-lead insensitivity.

Citation Download Citation

Michel Lequime, Catherine Lecot, Philippe Jouve, and Jacques Pouleau "Fiber optic pressure and temperature sensor for down-hole applications", Proc. SPIE 1511, Fiber Optic Sensors: Engineering and Applications, (1 August 1991); https://doi.org/10.1117/12.45997

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