光栅Bragg地震检波器的传感特性研究(英文)
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摘要
针对目前石油地震勘探的瓶颈--检波器性能差的问题,设计了一种新型光纤Bragg光栅(FBG)地震检波器,阐述了其工作原理,并从理论上给出了检波器的响应函数等参数。由于FBG的传感优势,这种新型地震检波器动态范围可达94dB,灵敏度高,重量轻,造价低,是理想的新一代地震勘探信号采集单元。
Aimed at the poor performance of conventional geophones in exploration for deeper and complex targets,we present the principle and theoretical design of a new geophone based on the opticalfiber Bragg grating(FBG)sensing technology.The important parameters such as response functions are calculated theoretically.Because of the advantages of FBG sensing technology,the new FBG geophone has a high dynamic range of 94dB at (10-200 Hz).This new generation of geophones will have wide use in seismic prospecting due to its higher sensitivity,lighter weight,and lower cost.
Aimed at the poor performance of conventional geophones in exploration for deeper and complex targets,we present the principle and theoretical design of a new geophone based on the opticalfiber Bragg grating(FBG)sensing technology.The important parameters such as response functions are calculated theoretically.Because of the advantages of FBG sensing technology,the new FBG geophone has a high dynamic range of 94dB at (10-200 Hz).This new generation of geophones will have wide use in seismic prospecting due to its higher sensitivity,lighter weight,and lower cost.
引文
Fan,Q.S.,2003,Theoretical Mechanics:High EducationPublisher.
Fang,T.and Xue,P.,1998,Vibration theory and itsapplications:Northwest University Press.
Fu,X.N.,2001,The problems with seismic geophone:Petroleum Instrument(in Chinese),15(2),11–12.
Fu,Q.F.,and Zhou,M.,2000,Development and progressof seismic geophone:Petroleum Instrument(in Chinese),14(2),25–27.
Hill,K.O.,et al.,1978,Photosensitivity in optical fiberwave-guides application to reflection filter fabrication:Appl.Phys.Lett.,32,647–649.
Jia,B.H.,and Sheng,Q.Q.,2000,Research ondemodulation method of fiber optic grating vibrationsensing:Optoelectronics Letters,12(7),758–761.
Lei,L.,and Zhou,X.F.,2003,Research on the new type of fiber Bragg grating geophone:China Cement,6,52–53.
Liang,L.,and Zhou,X.F.,2003,Research on the new typeof fiber Bragg grating geophone:Journal of ChengduPetroleum College(in Chinese),5(1),4–7.
Liu,G.L.,Liu,T.H.,Gao,Z.L.,Li G.,and Yao,G.K.,2003,On the development trends of seismic geophone:Progress for Exploration Geophysics(in Chinese),26(3),178–185.
Liu,Z.F.,2002,Research on all fiber optic accelerationseismic geophone based on compliant cylinders:MS Thesis,Tianjin University.
Meltz,G.,et al.,1988,Formation of Bragg gratings inoptical fiber by a transverse holographic method:Opt.Lett.,14(15),823–825.
Xu,Z.W.,and Sheng,Q.Q.,2001,An experimental studyon?ber optic grating vibration sensing:Acta ScientiarumNaturallum(Universitatis Nakaiensis)(in Chinese),34(2),79–81.
Yu,J.,and Li,S.Q.,2002,Fiber Bragg grating geophonehead:Petroleum Instrument(in Chinese),16(6),1–3.
Zhang,H.L.,2002,An accelerometer geophone MEMSfor geophysical prospecting:Petroleum Instrument(inChinese),16(6),1–3.
Zhang,X.L.,Tao,G.,and Liu,T.Y.,2005,Progress instudies on?ber Bragg grating geophone:Proceeding ofOFCIO’2005,Jinan University Press.
Zhang,X.L.,and Tao,G.,2006,Displacement tuning of?ber Bragg grating with temperature compensation:ActaScientiarum Naturallum(Universitatis Jinlinensis)(inChinese),44(4),634–636.
Zhang,Y.,Yin,Z.F.,Chen,B.Q.,and Cui,H.L.,2005,Anovel fiber Bragg grating based seismic geophone foroil/gas prospecting:Proc.of SPIE,5765,1112–1120.
Fang,T.and Xue,P.,1998,Vibration theory and itsapplications:Northwest University Press.
Fu,X.N.,2001,The problems with seismic geophone:Petroleum Instrument(in Chinese),15(2),11–12.
Fu,Q.F.,and Zhou,M.,2000,Development and progressof seismic geophone:Petroleum Instrument(in Chinese),14(2),25–27.
Hill,K.O.,et al.,1978,Photosensitivity in optical fiberwave-guides application to reflection filter fabrication:Appl.Phys.Lett.,32,647–649.
Jia,B.H.,and Sheng,Q.Q.,2000,Research ondemodulation method of fiber optic grating vibrationsensing:Optoelectronics Letters,12(7),758–761.
Lei,L.,and Zhou,X.F.,2003,Research on the new type of fiber Bragg grating geophone:China Cement,6,52–53.
Liang,L.,and Zhou,X.F.,2003,Research on the new typeof fiber Bragg grating geophone:Journal of ChengduPetroleum College(in Chinese),5(1),4–7.
Liu,G.L.,Liu,T.H.,Gao,Z.L.,Li G.,and Yao,G.K.,2003,On the development trends of seismic geophone:Progress for Exploration Geophysics(in Chinese),26(3),178–185.
Liu,Z.F.,2002,Research on all fiber optic accelerationseismic geophone based on compliant cylinders:MS Thesis,Tianjin University.
Meltz,G.,et al.,1988,Formation of Bragg gratings inoptical fiber by a transverse holographic method:Opt.Lett.,14(15),823–825.
Xu,Z.W.,and Sheng,Q.Q.,2001,An experimental studyon?ber optic grating vibration sensing:Acta ScientiarumNaturallum(Universitatis Nakaiensis)(in Chinese),34(2),79–81.
Yu,J.,and Li,S.Q.,2002,Fiber Bragg grating geophonehead:Petroleum Instrument(in Chinese),16(6),1–3.
Zhang,H.L.,2002,An accelerometer geophone MEMSfor geophysical prospecting:Petroleum Instrument(inChinese),16(6),1–3.
Zhang,X.L.,Tao,G.,and Liu,T.Y.,2005,Progress instudies on?ber Bragg grating geophone:Proceeding ofOFCIO’2005,Jinan University Press.
Zhang,X.L.,and Tao,G.,2006,Displacement tuning of?ber Bragg grating with temperature compensation:ActaScientiarum Naturallum(Universitatis Jinlinensis)(inChinese),44(4),634–636.
Zhang,Y.,Yin,Z.F.,Chen,B.Q.,and Cui,H.L.,2005,Anovel fiber Bragg grating based seismic geophone foroil/gas prospecting:Proc.of SPIE,5765,1112–1120.
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