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公开(公告)号：US20090087136A1
公开(公告)日：2009-04-02
申请号：US12293172
申请日：2007-03-29
申请人： Philip John Nash , David John Hill
发明人： Philip John Nash , David John Hill
CPC分类号： G01H9/004 , G01D5/35383 , G01V1/16 , G01V1/184 , G01V1/186
摘要： A fibre-optic sensor package (10) comprises a serial array of fibre-optic sensing coils (14, 16, 18, 20, 22) each of which is comprised in a respective fibre-optic sensor. Four (14, 16, 18, 22) of the coils are housed in a protective casing (24). One of the coils (22) is comprised in a fibre-optic electromagnetic field sensor. The other coils are comprised in respective fibre-optic geophones and/or hydrophones. A single package of the invention allows detection of both seismic and electromagnetic signals. An array of packages of the invention provides detection of both seismic and electromagnetic signal at a series of positions over a long distance or wide area, thus avoiding the need for two conventional arrays. A packages of the invention, and an array of such packages, require little or no electrical power input.
摘要翻译： 光纤传感器封装（10）包括光纤传感线圈（14,16,18,20,22）的串联阵列，每个光纤传感线圈包括在相应的光纤传感器中。 四个（14,16,18,22）的线圈被容纳在保护壳体（24）中。 其中一个线圈（22）包含在光纤电磁场传感器中。 其他线圈包括在相应的光纤地震检波器和/或水听器中。 本发明的单个包装允许检测地震和电磁信号。 本发明的封装阵列提供在长距离或广泛区域上的一系列位置处的地震和电磁信号的检测，从而避免了对两个常规阵列的需要。 本发明的封装和这种封装的阵列需要很少或没有电力输入。
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公开(公告)号：US09599489B2
公开(公告)日：2017-03-21
申请号：US12282784
申请日：2007-03-08
CPC分类号： G01D5/35383 , G01D5/35303
摘要： A fiber-optic sensor array (100) comprises a line array of fiber-optic sensor packages (AX, BX, CX, DX, AY, BY, CY, DY, AZ, BZ, CZ, DZ) each having a package input/output (i/o) fiber and each being arranged to output a finite output pulse series of optical output pulses via the package i/o fiber in response to input thereto of one or more interrogating optical pulses. The array further comprises a fiber-optic bus (104,106, 108, 110) extending along the length of the line array, each package i/o fiber being optically coupled to the fiber-optic bus at a respective positions along the line array. The array allows interrogation at a higher frequency than is the case for a serial array of the same number of fiber-optic sensing packages.
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公开(公告)号：US07440644B2
公开(公告)日：2008-10-21
申请号：US10506559
申请日：2003-03-03
申请人： Jonathan James Westhall , David John Hill , William Malcolm Babb , Philip John Nash , Steven Robert Thomson
发明人： Jonathan James Westhall , David John Hill , William Malcolm Babb , Philip John Nash , Steven Robert Thomson
摘要： An optical sensor assembly comprising a plurality of optical fibre sensor coils optically coupled by optical fibre; and an elongate support element, on which said plurality of optical fibre sensor coils and optically coupling optical fibre are mounted is disclosed. The support element has an elastic limit such that when said support element is bent from the elongate axis, the optical fibre fracture limit is reached before the elastic limit is reached. An array of these optical sensor assemblies, the mandrel on which the sensing coils are mounted and their method of manufacture are also disclosed.
摘要翻译： 一种光学传感器组件，包括通过光纤光耦合的多个光纤传感器线圈; 并且公开了一种细长的支撑元件，其上安装有所述多个光纤传感器线圈和光学耦合光纤。 支撑元件具有弹性极限，使得当所述支撑元件从细长轴线弯曲时，在达到弹性极限之前达到光纤断裂极限。 还公开了这些光学传感器组件的阵列，其上安装有感测线圈的心轴及其制造方法。
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公开(公告)号：US07282697B2
公开(公告)日：2007-10-16
申请号：US10502371
申请日：2003-01-15
CPC分类号： G01P15/093 , G01H9/004
摘要： A vibration sensing device, an acceleration sensing system and a method of manufacturing a vibration sensing device wherein the vibration sensing device comprises a flexible disk that is mounted symmetrically about a radial plane and has a mass located on the disk substantially symmetrical about this radial plane which exerts a force that is greater towards the edge than it is towards the centre of the disk. The vibration sensing device is sensitive to on-axis signals and insensitive to cross axis signals.
摘要翻译： 振动检测装置，加速度感测系统和制造振动感测装置的方法，其中所述振动感测装置包括围绕径向平面对称安装的柔性盘，并且具有位于所述盘上的质量基本上围绕该径向平面对称 对边缘施加比朝向磁盘中心更大的力。 振动检测装置对轴上信号敏感，对交叉轴信号不敏感。
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公开(公告)号：US08755643B2
公开(公告)日：2014-06-17
申请号：US12293172
申请日：2007-03-29
申请人： Philip John Nash , David John Hill
发明人： Philip John Nash , David John Hill
CPC分类号： G01H9/004 , G01D5/35383 , G01V1/16 , G01V1/184 , G01V1/186
摘要： A fiber-optic sensor package (10) comprises a serial array of fiber-optic sensing coils (14, 16, 18, 20, 22) each of which is comprised in a respective fiber-optic sensor. Four (14, 16, 18, 22) of the coils are housed in a protective casing (24). One of the coils (22) is comprised in a fiber-optic electromagnetic field sensor. The other coils are comprised in respective fiber-optic geophones and/or hydrophones. A single package of the invention allows detection of both seismic and electromagnetic signals. An array of packages of the invention provides detection of both seismic and electromagnetic signal at a series of positions over a long distance or wide area, thus avoiding the need for two conventional arrays. A packages of the invention, and an array of such packages, require little or no electrical power input.
摘要翻译： 光纤传感器封装（10）包括光纤传感线圈（14,16,18,20,22）的串联阵列，每个光纤传感线圈包括在相应的光纤传感器中。 四个（14,16,18,22）的线圈被容纳在保护壳体（24）中。 其中一个线圈（22）包含在光纤电磁场传感器中。 其他线圈包括在相应的光纤地震检波器和/或水听器中。 本发明的单个包装允许检测地震和电磁信号。 本发明的封装阵列提供在长距离或广泛区域上的一系列位置处的地震和电磁信号的检测，从而避免了对两个常规阵列的需要。 本发明的封装和这种封装的阵列需要很少或没有电力输入。
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公开(公告)号：US07345953B2
公开(公告)日：2008-03-18
申请号：US10533761
申请日：2003-11-04
IPC分类号： G01V1/18
摘要： A vibration sensing device, package and system and a method of manufacturing a vibration sensing device are disclosed. The vibration sensing device comprises a body whose geometry is such that it exhibits flextensional properties.
摘要翻译： 公开了一种振动感测装置，封装和系统以及制造振动感测装置的方法。 振动检测装置包括其几何形状使其具有挠曲特性的主体。
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公开(公告)号：US20090080828A1
公开(公告)日：2009-03-26
申请号：US12282784
申请日：2007-03-08
IPC分类号： G02B6/00
CPC分类号： G01D5/35383 , G01D5/35303
摘要： A fibre-optic sensor array (100) comprises a line array of fibre-optic sensor packages (AX, BX, CX, DX, AY, BY, CY, DY, AZ, BZ, CZ, DZ) each having a package input/output (i/o) fibre and each being arranged to output a finite output pulse series of optical output pulses via the package i/o fibre in response to input thereto of one or more interrogating optical pulses. The array further comprises a fibre-optic bus (104,106, 108, 110) extending along the length of the line array, each package i/o fibre being optically coupled to the fibre-optic bus at a respective positions along the line array. The array allows interrogation at a higher frequency than is the case for a serial array of the same number of fibre-optic sensing packages.
摘要翻译： 光纤传感器阵列（100）包括光纤传感器封装（AX，BX，CX，DX，AY，BY，CY，DY，AZ，BZ，CZ，DZ）的线阵列， 输出（i / o）光纤，并且每个光纤布置成响应于一个或多个询问光脉冲的输入，经由封装i / o光纤输出有限的输出脉冲序列的光输出脉冲。 阵列还包括沿着线阵列的长度延伸的光纤总线（104,106,108,110），每个封装i / o光纤在沿着线阵列的相应位置处光耦合到光纤总线。 该阵列允许以比相同数量的光纤传感封装的串行阵列的情况更高的频率进行询问。
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公开(公告)号：US09625348B2
公开(公告)日：2017-04-18
申请号：US13059810
申请日：2009-08-21
摘要： This invention relates to the fiber optic distributed acoustic sensing to detect P and S waves in a solid medium. Distributed acoustic sensing can be achieved using an unmodified fiber optic by launching optical pulses into the fiber and detecting radiation which is Rayleigh backscattered there from. By analyzing the returns in analysis bins, acoustic disturbances can be detected in a plurality of discrete longitudinal sections of the fiber. The present invention extends such fiber distributed acoustic sensing to detection of S and P waves.
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公开(公告)号：US09617848B2
公开(公告)日：2017-04-11
申请号：US13320884
申请日：2010-05-27
CPC分类号： E21B47/16 , E21B43/11857 , E21B43/26 , E21B47/101 , E21B47/123 , G01H9/004 , G01V1/50 , G01V2210/1429 , G01V2210/646
摘要： This application describes methods and apparatus for downhole monitoring in real-time. The method involves interrogating an unmodified optic fiber (102) arranged along the path of a well bore (106) to provide a distributed acoustic sensor and sampling data gathered from a plurality of sensing portions of the fiber. The sampled data is then processed to provide a real-time indication of the acoustic signals detected by the sensing portions of the fiber. The real-time indication provides information to an operator or controller of the downwell process with real-time feedback data regarding what is happening during the downwell process which allows the identification of any problems and adjustment of the process parameters.
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公开(公告)号：US20130319121A1
公开(公告)日：2013-12-05
申请号：US13984426
申请日：2012-02-27
IPC分类号： G01H9/00
CPC分类号： G01H9/004
摘要： This application describes methods and apparatus for distributed acoustic sensing providing enhanced sensitivity for certain acoustic signals. The method uses a fibre optic distributed acoustic sensing (DAS) apparatus (106) to detect acoustic signals wherein the fibre optic distributed acoustic sensor comprises at least one optical fibre (104) deployed in an area of interest (204) such that at least one section of said optical fibre is deployed to monitor the acoustic response of a cavity (206) to incident acoustic signals. The cavity is dimensioned such that the cavity resonates at a desired frequency and thus the relevant sensing portions of the DAS sensor show an enhanced response to acoustic signals which excite resonance in the cavity. The optical fibre (104) may be deployed to run through said cavity.
摘要翻译： 本申请描述了用于分布式声学感测的方法和装置，其为某些声学信号提供增强的灵敏度。 该方法使用光纤分布式声学感测（DAS）设备（106）来检测声信号，其中光纤分布式声学传感器包括部署在感兴趣区域（204）中的至少一个光纤（104），使得至少一个 展开所述光纤的部分以监测腔（206）对入射声信号的声响应。 空腔的尺寸使得空腔以期望的频率谐振，因此DAS传感器的相关感测部分对在空腔中激发谐振的声信号显示增强的响应。 光纤（104）可以被布置成穿过所述空腔。
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