Research of pressure sensor based on the fiber Bragg grating for permanent downwell monitoring application

Lina Liu; Pin Long; Tiegen Liu

doi:10.1117/12.567225

16 November 2004 Research of pressure sensor based on the fiber Bragg grating for permanent downwell monitoring application

Lina Liu, Pin Long, Tiegen Liu

Author Affiliations +

Proceedings Volume 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers; (2004) https://doi.org/10.1117/12.567225
Event: Photonics North, 2004, Ottawa, Ontario, Canada

Abstract

Timely, accurate and reliable pressure information about how the reservoir is performing is an important component to optimizing oil yield and production rates. This paper reviews the use of fiber optical pressure sensor for downhole monitoring in the oil industry. Several types of pressure transducer with different characteristics have been introduced. Due to their multiplexing capabilities and versatility ,the use of Bragg grating sensors appears to be particularly suited for this application. A sensor for accurate and long term fluid pressure monitoring based on optical fiber Bragg gratings(FBGs) is developed. The sensor converts fluid pressure into optical fiber strain by means of a mechanical transducer to enhance its sensitivity to pressure. It can also implement distributed or multiplexed sensing. The sensor operation is studied at pressure up to 100 Mpa(1000bar) and the tested temperature to ~175°. It is possible to be used in the well.

Citation Download Citation

Lina Liu, Pin Long, and Tiegen Liu "Research of pressure sensor based on the fiber Bragg grating for permanent downwell monitoring application", Proc. SPIE 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers, (16 November 2004); https://doi.org/10.1117/12.567225

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