Distributed optical fiber Bragg grating sensor for simultaneous measurement of pressure and temperature in the oil and gas downhole

Xueguang Qiao; Michael A. Fiddy

doi:10.1117/12.475573

11 July 2002 Distributed optical fiber Bragg grating sensor for simultaneous measurement of pressure and temperature in the oil and gas downhole

Xueguang Qiao, Michael A. Fiddy

Author Affiliations +

Proceedings Volume 4870, Active and Passive Optical Components for WDM Communications II; (2002) https://doi.org/10.1117/12.475573
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

Abstract

A new method of distributed fiber Bragg grating sensors with a linear CCD array demultiplexing technique for the simultaneous measurement of pressure and temperature is described. The optical source is a dual-wavelength light-emitting diode (LED). The sensing probe incorporates five pairs of double-wavelength fiber Bragg gratings along a single fiber for measuring axial pressure and temperature simultaneously in oil and gas pipelines. A linear CCD array based spectrometer is used for tracing the wavelength shift of the Bragg grating sensors. The tests were carried out in oil and gas pipelines, pressure resolution is 0. 1 Psi, and temperature resolution is 0. 1 °C .The measurement range of pressure and temperature is 0—1 OOMPa and -20—1 80 C respectively.

Citation Download Citation

Xueguang Qiao and Michael A. Fiddy "Distributed optical fiber Bragg grating sensor for simultaneous measurement of pressure and temperature in the oil and gas downhole", Proc. SPIE 4870, Active and Passive Optical Components for WDM Communications II, (11 July 2002); https://doi.org/10.1117/12.475573

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available