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1. 发明授权

US08757870B2 Location dependent calibration for distributed temperature sensor measurements 有权
标题翻译：分布式温度传感器测量的位置相关校准
公开(公告)号：US08757870B2
公开(公告)日：2014-06-24
申请号：US12051984
申请日：2008-03-20
申请人： Travis S. Hall , Brooks A. Childers
发明人： Travis S. Hall , Brooks A. Childers
IPC分类号： G01K15/00 , G01K3/06 , G01J5/08
CPC分类号： G01K15/00 , G01K11/32
摘要： A method for calibrating distributed temperature sensing (DTS) systems is disclosed. The method includes: receiving temperature data associated with one or more locations along a length of an optical fiber; calculating a set of unique calibration coefficients specific to each of the one or more locations along the fiber length; and applying the set of calibration coefficients specific to each of the one or more locations along the fiber length to the temperature data for calibrated correction thereof. Also disclosed is a system for calibrating DTS data and a wellbore for providing calibrated DTS data.
摘要翻译：公开了一种用于校准分布式温度感测（DTS）系统的方法。该方法包括：沿着光纤长度接收与一个或多个位置相关联的温度数据; 计算沿着所述光纤长度的所述一个或多个位置中的每一个特有的唯一校准系数集合; 以及将沿所述光纤长度的所述一个或多个位置中的每一个特定的所述一组校准系数应用于所述温度数据以进行校准校正。还公开了用于校准DTS数据的系统和用于提供校准DTS数据的井眼。

2. 发明申请

US20130094798A1 Monitoring Structural Shape or Deformations with Helical-Core Optical Fiber 审中-公开
标题翻译：用螺旋核心光纤监测结构形状或变形
公开(公告)号：US20130094798A1
公开(公告)日：2013-04-18
申请号：US13557383
申请日：2012-07-25
申请人： Roger G. Duncan , Brooks A. Childers , Travis S. Hall
发明人： Roger G. Duncan , Brooks A. Childers , Travis S. Hall
IPC分类号： G01B11/16 , G02B6/34
CPC分类号： E21B47/0006 , E21B47/123 , G01B11/18 , G01L1/246
摘要： A method, apparatus and system for determine a parameter of a structure is disclosed. A fiber optic cable is coupled to a member. The fiber optic cable includes at least a first core helically arranged in the fiber optic cable that includes at least a first sensor and a second sensor. A first measurement related to the parameter is obtained at the first sensor, and a second measurement at the second sensor related to the parameter is obtained at the second sensor. A difference between the first and second measurements is used to determine the parameter.
摘要翻译：公开了一种用于确定结构参数的方法，装置和系统。光纤电缆耦合到一个部件。光纤电缆至少包括螺旋地布置在光纤电缆中的至少第一芯，该第一芯包括至少第一传感器和第二传感器。在第一传感器处获得与参数相关的第一测量，并且在第二传感器处获得与参数有关的第二传感器的第二测量。使用第一和第二测量之间的差异来确定参数。

3. 发明申请

US20080232425A1 LOCATION DEPENDENT CALIBRATION FOR DISTRIBUTED TEMPERATURE SENSOR MEASUREMENTS 有权
标题翻译：用于分布式温度传感器测量的位置相关校准
公开(公告)号：US20080232425A1
公开(公告)日：2008-09-25
申请号：US12051984
申请日：2008-03-20
申请人： Travis S. Hall , Brooks A. Childers
发明人： Travis S. Hall , Brooks A. Childers
IPC分类号： G01K15/00
CPC分类号： G01K15/00 , G01K11/32
摘要： A method for calibrating distributed temperature sensing (DTS) systems is disclosed. The method includes: receiving temperature data associated with one or more locations along a length of an optical fiber; calculating a set of unique calibration coefficients specific to each of the one or more locations along the fiber length; and applying the set of calibration coefficients specific to each of the one or more locations along the fiber length to the temperature data for calibrated correction thereof. Also disclosed is a system for calibrating DTS data and a wellbore for providing calibrated DTS data.
摘要翻译：公开了一种用于校准分布式温度感测（DTS）系统的方法。该方法包括：沿着光纤长度接收与一个或多个位置相关联的温度数据; 计算沿着所述光纤长度的所述一个或多个位置中的每一个特有的唯一校准系数集合; 以及将沿所述光纤长度的所述一个或多个位置中的每一个特定的所述一组校准系数应用于所述温度数据以进行校准校正。还公开了用于校准DTS数据的系统和用于提供校准DTS数据的井眼。

4. 发明授权

US09321222B2 Optical fiber sensing with enhanced backscattering 有权
标题翻译：光纤传感增强后向散射
公开(公告)号：US09321222B2
公开(公告)日：2016-04-26
申请号：US14322160
申请日：2014-07-02
申请人： Brooks A. Childers , Roger Glen Duncan
发明人： Brooks A. Childers , Roger Glen Duncan
IPC分类号： G01V8/16 , G01V1/22 , B29C71/00 , G01H9/00 , E21B47/12 , B29L11/00 , B29L31/00 , B29K105/00
CPC分类号： B29C71/00 , B29K2105/253 , B29K2995/0018 , B29K2995/0031 , B29L2011/00 , B29L2031/731 , B29L2031/752 , E21B47/123 , G01H9/004 , G01V1/226
摘要： An apparatus for estimating at least one parameter in a downhole environment includes: an optical fiber configured to be disposed in a borehole, the optical fiber having a property that causes intrinsic backscattering of signals transmitted therein. The property varies along a length of the optical fiber to generate a variable intensity of the backscattering, the intensity of backscattering varying along the optical fiber as a function of distance from an end of the optical fiber. The apparatus also includes a light source configured to send an optical signal into the optical fiber; and a detector configured to receive a return signal including backscattered signals.
摘要翻译：一种用于估计井下环境中的至少一个参数的装置，包括：配置成设置在钻孔中的光纤，所述光纤具有导致其中传输的信号的固有后向散射的性质。该特性随着光纤的长度而变化，以产生后向散射的可变强度，作为距离光纤端部的距离的函数，沿着光纤的后向散射强度变化。该装置还包括配置成将光信号发送到光纤中的光源; 以及检测器，被配置为接收包括反向散射信号的返回信号。

5. 发明授权

US09200508B2 Method and apparatus for monitoring vibration using fiber optic sensors 有权
标题翻译：使用光纤传感器监测振动的方法和装置
公开(公告)号：US09200508B2
公开(公告)日：2015-12-01
申请号：US12985773
申请日：2011-01-06
申请人： Roger G. Duncan , Brooks A. Childers , Robert M. Harman , Ajit Balagopal
发明人： Roger G. Duncan , Brooks A. Childers , Robert M. Harman , Ajit Balagopal
IPC分类号： G01V3/38 , E21B47/00 , E21B47/12
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。

6. 发明授权

US08681322B2 Distance measurement using incoherent optical reflectometry 有权
标题翻译：使用非相干光学反射测量的距离测量
公开(公告)号：US08681322B2
公开(公告)日：2014-03-25
申请号：US13271852
申请日：2011-10-12
申请人： Alexander M. Barry , Roger Glen Duncan , Brooks A. Childers , Robert M. Harman , Daniel S. Homa , Ajit Balagopal , Philip Robin Couch
发明人： Alexander M. Barry , Roger Glen Duncan , Brooks A. Childers , Robert M. Harman , Daniel S. Homa , Ajit Balagopal , Philip Robin Couch
IPC分类号： G01C3/08
CPC分类号： G01S17/08 , E21B47/06 , E21B47/123 , G01L1/246 , G01S7/4818 , G01S17/88
摘要： A method for estimating a distance includes: generating an optical signal having a wavelength that is within a wavelength range, the optical signal modulated via a modulation signal having a modulation frequency; transmitting the modulated optical signal from a light source into the optical fiber, the optical fiber in contact with a moveable strain inducing element located at the position along the optical fiber, the optical fiber including a plurality of sensing locations configured to reflect light within the wavelength range when under strain from the strain inducing element and transmit light within the wavelength range when not under strain from the strain inducing element; receiving a reflected signal including light reflected from at least one of the sensing locations; demodulating the reflected signal with a reference signal to generate reflected signal data; and determining the distance to the position along the optical fiber based on the reflected signal data.
摘要翻译：用于估计距离的方法包括：产生具有在波长范围内的波长的光信号，经由调制频率调制信号调制的光信号; 将来自光源的调制光信号传输到光纤中，该光纤与位于沿着光纤的位置处的可移动应变感应元件接触，该光纤包括被配置为反射波长内的光的多个感测位置当应变诱发元件处于应变状态并且当不受应变诱发元件的应变时在波长范围内透射光; 接收包括从所述感测位置中的至少一个反射的光的反射信号; 用参考信号解调反射信号以产生反射信号数据; 以及基于反射信号数据确定沿着光纤的位置的距离。

7. 发明授权

US08265431B2 Rotated single or multicore optical fiber 有权
标题翻译：旋转单或多芯光纤
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。

8. 发明申请

US20110261361A1 System and Method for Effective Isolation of an Interferometer 有权
标题翻译：干涉仪有效隔离的系统和方法
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
IPC分类号： G01B9/02 , F16M13/00
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。

9. 发明授权

US07719690B2 Optical inclination sensor 有权
标题翻译：光学倾斜传感器
公开(公告)号：US07719690B2
公开(公告)日：2010-05-18
申请号：US11867978
申请日：2007-10-05
申请人： Brooks A. Childers , Clark Davis Boyd , Paul Samuel Zerwekh
发明人： Brooks A. Childers , Clark Davis Boyd , Paul Samuel Zerwekh
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。

10. 发明授权

US07433551B2 Fiber optic sensors system 有权
标题翻译：光纤传感器系统
公开(公告)号：US07433551B2
公开(公告)日：2008-10-07
申请号：US10570001
申请日：2004-09-02
申请人： Stephen H. Poland , Clark D. Boyd , Brooks A. Childers
发明人： Stephen H. Poland , Clark D. Boyd , Brooks A. Childers
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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