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21.发明授权Sensor array configuration for swept-wavelength interferometric-based sensing systems 有权用于基于扫描波长干涉测量的感测系统的传感器阵列配置公开(公告)号：US08638444B2
公开(公告)日：2014-01-28
申请号：US13004268
申请日：2011-01-11
IPC分类号： G01B9/02
摘要： A method, system and apparatus for obtaining a parameter of interest relating to a wellbore is disclosed. A fiber optic cable having a plurality of sensors is disposed in the wellbore, wherein the plurality of sensors have reflectivity values configured to provide improved signal-to-noise ratio compared to signal-to-noise ratio of a plurality of sensors having substantially same reflectivity values. Light is propagated into the fiber optic cable from a light source and signals are received at a detector from the plurality of sensors in response to interaction of the propagated light with the plurality of sensors. A processor may be used to obtain the parameter of interest from the received signals. The fiber optic cable may be coupled to a member in the wellbore, wherein the parameter of interest is related to the member.
摘要翻译： 公开了一种用于获得与井眼有关的参数的方法，系统和装置。 具有多个传感器的光纤电缆设置在井筒中，其中多个传感器具有反射率值，其被配置为提供与具有基本相同反射率的多个传感器的信噪比相比提供的改善的信噪比 价值观。 光从光源传播到光纤电缆中，响应于传播的光与多个传感器的相互作用，信号在多个传感器的检测器处被接收。 可以使用处理器从接收到的信号获得感兴趣的参数。 光纤电缆可以耦合到井筒中的构件，其中感兴趣的参数与构件相关。
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22.发明申请公开(公告)号：US20130093599A1
公开(公告)日：2013-04-18
申请号：US13271968
申请日：2011-10-12
IPC分类号： G01V3/12
CPC分类号： G01N21/954
摘要： A method for estimating a parameter includes: transmitting a control signal to a coherent optical source, the control signal configured to chaotically vary an output of the optical source and generate a chaotically excited optical signal; transmitting the optical signal from the optical source into an optical fiber, the optical fiber including at least one sensing location; receiving a reflected signal including light reflected from the at least one sensing location; and estimating a value of the parameter using the reflected signal.
摘要翻译： 一种用于估计参数的方法包括：将控制信号发送到相干光源，所述控制信号被配置为混沌地改变光源的输出并产生混沌激励的光信号; 将所述光信号从所述光源传输到光纤中，所述光纤包括至少一个感测位置; 接收包括从所述至少一个感测位置反射的光的反射信号; 以及使用所述反射信号估计所述参数的值。
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23.发明申请Use of Digital Transport Delay to Improve Measurement Fidelity in Swept-Wavelength Systems 审中-公开使用数字传输延迟来提高扫频波长系统中的测量保真度公开(公告)号：US20120200422A1
公开(公告)日：2012-08-09
申请号：US13023945
申请日：2011-02-09
IPC分类号： G01V3/00
CPC分类号： G01V8/02
摘要： A method and apparatus for obtaining a parameter of interest from an optical device placed along a fiber optic cable in a wellbore is disclosed. Light is propagated a light through the fiber optic cable from a light source. A first detector receives a first signal responsive to interaction of the propagated light and the optical device, wherein the first signal has a delay. A second detector receives a second signal and a digital delay device delays the received second signal. A sampling device obtains a selected signal from the first signal using the delayed second signal, and a processor determines the parameter of interest using the selected signal.
摘要翻译： 公开了一种用于从沿着光纤电缆放置在井眼中的光学装置获得感兴趣参数的方法和装置。 光从光源传播通过光纤电缆的光。 第一检测器响应于传播的光和光学装置的相互作用而接收第一信号，其中第一信号具有延迟。 第二检测器接收第二信号，并且数字延迟装置延迟所接收的第二信号。 采样装置使用延迟的第二信号从第一信号获得所选择的信号，并且处理器使用所选择的信号来确定感兴趣的参数。
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24.发明授权公开(公告)号：US09200508B2
公开(公告)日：2015-12-01
申请号：US12985773
申请日：2011-01-06
CPC分类号： E21B47/0007 , E21B47/123
摘要： A apparatus for monitoring a downhole component is disclosed. The apparatus includes: an optical fiber sensor including a plurality of sensing locations distributed along a length of the optical fiber sensor; an interrogation assembly configured to transmit an electromagnetic interrogation signal into the optical fiber sensor and receive reflected signals from each of the plurality of sensing locations; and a processing unit configured to receive the reflected signals, select a measurement location along the optical fiber sensor, select a first reflected signal associated with a first sensing location in the optical fiber sensor, the first sensing location corresponding with the measurement location, select a second reflected signal associated with a second sensing location in the optical fiber sensor, estimate a phase difference between the first signal and the second signal, and estimate a parameter of the downhole component at the measurement location based on the phase difference.
摘要翻译： 公开了一种用于监测井下部件的装置。 该装置包括：光纤传感器，包括沿着光纤传感器的长度分布的多个感测位置; 询问组件，被配置为将电磁询问信号传输到所述光纤传感器中，并接收来自所述多个感测位置中的每一个的反射信号; 以及处理单元，被配置为接收所述反射信号，选择沿着所述光纤传感器的测量位置，选择与所述光纤传感器中的第一感测位置相关联的第一反射信号，所述第一感测位置对应于所述测量位置， 与光纤传感器中的第二感测位置相关联的第二反射信号，估计第一信号和第二信号之间的相位差，并且基于相位差来估计测量位置处的井下分量的参数。
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公开(公告)号：US08265431B2
公开(公告)日：2012-09-11
申请号：US12613881
申请日：2009-11-06
申请人： Brooks A. Childers , Daniel S. Homa
发明人： Brooks A. Childers , Daniel S. Homa
IPC分类号： G02B6/00
CPC分类号： E21B47/0006 , G01L1/246 , G02B6/022
摘要： An apparatus for estimating a shape, the apparatus including: an optical fiber configured to conform to the shape and having a first core offset from a centerline of the optical fiber, the first core having an optical characteristic configured to change due to a change in shape of the optical fiber wherein a change in the optical characteristic is used to estimate the shape. A method for estimating a shape is also disclosed.
摘要翻译： 一种用于估计形状的装置，所述装置包括：光纤，被配置为符合形状并具有偏离光纤的中心线的第一芯，所述第一芯具有被配置为由于形状变化而改变的光学特性 其中使用光学特性的变化来估计形状。 还公开了一种用于估计形状的方法。
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公开(公告)号：US20110261361A1
公开(公告)日：2011-10-27
申请号：US12767607
申请日：2010-04-26
申请人： David Dixon , Robert M. Harman , Roger G. Duncan , Alan C. Reynolds , Michael C. Nuckles , Brooks A. Childers
发明人： David Dixon , Robert M. Harman , Roger G. Duncan , Alan C. Reynolds , Michael C. Nuckles , Brooks A. Childers
CPC分类号： F16F15/04 , G01B9/02052 , G01M11/088 , G01M11/31 , G01M11/3172
摘要： An interferometer has its performance enhanced by being suspended in a housing that is optionally evacuated. The frame that supports the interferometer is secured to a cover for the housing with a plurality of studs having mechanical vibration isolators. The frame comprises a support flange with a foam layer beneath the interferometer. An optics tray is disposed above the interferometer and holds the assembly to the support flange. The fibers that are connected to the interferometer enter the side of the housing and the entry is sealed off to allow the interior of the housing to be evacuated.
摘要翻译： 干涉仪的性能通过悬挂在可选择地抽出的壳体中而被增强。 支撑干涉仪的框架用多个具有机械隔振器的螺柱固定到壳体的盖上。 框架包括在干涉仪下方具有泡沫层的支撑凸缘。 光学托盘设置在干涉仪上方并将组件保持在支撑凸缘上。 连接到干涉仪的光纤进入壳体的侧面，密封入口以使壳体的内部被排空。
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公开(公告)号：US07719690B2
公开(公告)日：2010-05-18
申请号：US11867978
申请日：2007-10-05
IPC分类号： G01B9/02
CPC分类号： G01C9/20 , G01C9/06 , G01C2009/066
摘要： An optical inclination sensor is provided having at least one reflective surface and at least two separate optical fibers having ends spaced from a reflective surface. As the reflective surface tilts with respect to a pre-determined reference position the gap lengths between the fiber ends and the reflective surface change and the differences in these gap lengths is used to calculate an angle of inclination with respect to a reference position. The optical inclination sensor can include at least one mass attached to a housing and moveable with respect to the housing as the mass and housing are rotated about one or more axes. Optical strain sensors are disposed a various locations between the mass and housing so that as the mass moves with respect to the housing, each one of the optical strain sensors are placed in compression or tension. The housing can be a generally u-shaped housing having two arms and a base section with the mass disposed within the housing. Alternatively, the housing includes a first beam, and the mass is a second beam arranged generally orthogonal to the first beam and pivotally attached thereto. The optical strain sensors are disposed between the first beam and the second beam. The optical strain sensors are placed in tension or compression as the second beam pivots with respect to the first beam.
摘要翻译： 提供光学倾斜传感器，其具有至少一个反射表面和至少两个具有与反射表面间隔开的端部的分离的光纤。 当反射表面相对于预定的参考位置倾斜时，光纤端部和反射表面之间的间隙长度改变，并且使用这些间隙长度的差异来计算相对于参考位置的倾斜角度。 光学倾斜传感器可以包括附接到壳体的至少一个质量体，并且当质量和壳体围绕一个或多个轴线旋转时，该倾斜传感器可相对于壳体移动。 光学应变传感器设置在质量块和壳体之间的各种位置，使得当质量相对于壳体移动时，每个光学应变传感器被放置成压缩或张力。 壳体可以是具有两个臂的大体上U形的壳体和具有设置在壳体内的质量的基部。 或者，壳体包括第一梁，并且质量体是大致垂直于第一梁并且枢转地附接到其上的第二梁。 光学应变传感器设置在第一光束和第二光束之间。 当第二光束相对于第一光束枢转时，光学应变传感器被放置在张力或压缩状态。
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公开(公告)号：US07433551B2
公开(公告)日：2008-10-07
申请号：US10570001
申请日：2004-09-02
IPC分类号： G02B6/00
CPC分类号： G01K11/3213 , G01D5/35387
摘要： A fiber optic system including a plurality of optical sensors, each with an identification system is disclosed. The fiber optic system includes a fiber, a demodulator, and at least one coupler, optical sensor and corresponding identification system. The identification system is powered by light shunted from the fiber by the coupler to a modulating device. The modulating device modulates the light and transmits it to a power converting device, which transforms the light energy into electrical energy. The electrical energy powers a high temperature integrated circuit upon which is stored a digital identification of a respective optical sensor. The integrated circuit, upon being powered up, sends a modulated response back up to the surface through the modulating device. Alternatively, a passive identification system is described, wherein identification information for a sensor is encoded onto the optical beam as it passes through reflective devices along the length of the fiber.
摘要翻译： 公开了一种包括多个光学传感器的光纤系统，每个具有识别系统。 光纤系统包括光纤，解调器和至少一个耦合器，光学传感器和相应的识别系统。 识别系统由通过耦合器从光纤分流到调制装置的光供电。 调制装置调制光并将其传输到功率转换装置，其将光能转换成电能。 电能为存储有相应光学传感器的数字标识的高温集成电路供电。 集成电路在上电时，通过调制装置将调制的响应反馈回到表面。 或者，描述了一种被动识别系统，其中传感器的识别信息在其沿着光纤的长度通过反射装置时被编码到光束上。
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29.发明授权Determination of strain components for different deformation modes using a filter 有权使用过滤器确定不同变形模式的应变分量公开(公告)号：US09557239B2
公开(公告)日：2017-01-31
申请号：US12960119
申请日：2010-12-03
CPC分类号： G01L25/00 , E21B47/0006 , E21B47/123 , G01B11/165 , G01D5/35316 , G01L1/24 , G01L1/246 , G01L5/0047
摘要： A method, apparatus and computer-readable medium for determining a strain component for a deformation mode of a member is disclosed. A plurality of measurements is obtained, wherein each of the plurality of measurements relates to a strain at a location of the member. A deformation mode is selected and an adjustable filter is applied to the plurality of strain measurements to determine the strain component for the selected deformation mode.
摘要翻译： 公开了一种用于确定构件的变形模式的应变分量的方法，装置和计算机可读介质。 获得多个测量值，其中多个测量值中的每一个与成员位置处的应变相关。 选择变形模式，并且将可调滤波器应用于多个应变测量以确定所选择的变形模式的应变分量。
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30.发明授权Splicable fiber optic sensing system, method of making same and tape for sense transmissively locking an optical fiber 有权可变光纤感测系统，其制造方法以及用于传感光纤的传感器的磁带公开(公告)号：US09255822B2
公开(公告)日：2016-02-09
申请号：US14169760
申请日：2014-01-31
申请人： Carl W. Stoesz , Brooks A. Childers
发明人： Carl W. Stoesz , Brooks A. Childers
CPC分类号： G01D5/35374 , B32B37/1292 , B32B37/142 , C09J7/20 , C09J7/21 , C09J163/00 , C09J2201/122 , C09J2201/28 , C09J2400/263 , C09J2463/00 , G01D5/35377 , G01L1/242 , G02B6/4407 , G02B6/4415 , G02B6/443 , G02B6/4434 , Y10T156/10 , Y10T428/24802
摘要： A splicable fiber optic sensing system includes, a core, a sheath surrounding the core, an adhesive disposed between the core and the sheath at some locations and not at other locations, and at least one optical fiber disposed between the core and the sheath being sense transmissively locked to the core by the adhesive at the locations containing the adhesive.
摘要翻译： 一种拼接的光纤传感系统包括：芯，围绕芯的护套，在某些位置处而不在其它位置处设置在芯和护套之间的粘合剂，以及设置在芯和护套之间的至少一根光纤是感觉的 通过粘合剂在包含粘合剂的位置处透射性地锁定到芯部。
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