高温高压油气井下光纤光栅传感器的应用研究.pdf

22120111JournalofOptoelectronicsLaserVol.22No.1Jan.2011

高温高压油气井下光纤光栅传感器的应用研究

*

王宏亮,邬华春,冯德全,王向宇,宋娟,樊伟

(,710065)

:(FBG)

FBG,FBGFBG

,FBG,0~20MPa,0~

315;0.01nm/MPa,0.18nm;0.02

nm/,6.60nm40nm,

,,

:;;

:N253:A:2011

ResearchontheFBGsensorusedforhightemperaturepressure

wells

*

WANGHongliang,WUHuachun,FENGDequan,WANGXiangyu,SONGJuan,

FANWei

(KeyLaboratoryofPhotoelectricSensingLoggingofShanxiProvince,Xi!anUniversityofPetlum,Xi!an710065,

China)

Abstract:AfiberBragggratingsensorwhichconsistedoftwoFBGsforhightemperatureandhighpres

surewellswasdesignedandfabricated.Inthesensor,thehighlyelasiticalloywaschosenasthesub

strate,andthesensorwaspackagedonthesubstratewiththehightemperaturecorrodingresistancema

terials.heexperimentalcalibrationsshowthatthesensingrangesofpressureandtemperatureare0-

20MPaand0-315,respectively;thepressuresensitivityis0.01nm/MPaandthemaximumtunable

wavelengthrangeis0.18nm;thetemperaturesensitivityis0.02nm/andthemaximumtunable

wavelengthrangeis6.60nm.Whenthebandwidthoflightsourceis40nm,thesensorcanachievedis

tributedsensingoftemperatureandpressureinthewells.Anonlinedetectionforsomeoilfieldshows

thatthesensorcanmeettheneedofthehightemperaturepressureoilgaswells.

Keywords:fiberoptics;sensor;logging

1

(FBG),FBG

,

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