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1. 发明申请

US20120237205A1 SYSTEM AND METHOD TO COMPENSATE FOR ARBITRARY OPTICAL FIBER LEAD-INS IN AN OPTICAL FREQUENCY DOMAIN REFLECTOMETRY SYSTEM 审中-公开
标题翻译：用于补偿光学频域反射测量系统中的光纤光栅的系统和方法
公开(公告)号：US20120237205A1
公开(公告)日：2012-09-20
申请号：US13049357
申请日：2011-03-16
申请人： Roger G. Duncan , Alexander M. Barry , Brooks A. Childers , Ajit Balagopal , Philip Robin Couch
发明人： Roger G. Duncan , Alexander M. Barry , Brooks A. Childers , Ajit Balagopal , Philip Robin Couch
IPC分类号： H04B10/08
CPC分类号： E21B47/0006 , E21B47/123 , G01D5/35354
摘要： A method for estimating a parameter includes: generating an optical signal, the optical signal modulated via a modulation signal having a variable modulation frequency over a period of time; transmitting the modulated optical signal from a light source into an optical fiber, the optical fiber including at least one sensing location configured to reflect light; receiving a reflected signal including light reflected from the at least one sensing location; and demodulating the reflected signal with a reference signal, the reference signal including a time delay relative to the modulation signal based on a distance between the light source and the at least one sensing location.
摘要翻译：一种用于估计参数的方法包括：产生光信号，经由一段时间具有可变调制频率的调制信号调制的光信号; 将调制的光信号从光源传输到光纤中，所述光纤包括被配置为反射光的至少一个感测位置; 接收包括从所述至少一个感测位置反射的光的反射信号; 以及用参考信号解调所述反射信号，所述参考信号包括基于所述光源和所述至少一个感测位置之间的距离的相对于所述调制信号的时间延迟。

2. 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。

3. 发明申请

US20130094011A1 DISTANCE MEASUREMENT USING INCOHERENT OPTICAL REFLECTOMETRY 有权
标题翻译：使用不可见光学反射光谱测量的距离测量
公开(公告)号：US20130094011A1
公开(公告)日：2013-04-18
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。

4. 发明申请

US20120176250A1 SYSTEM AND METHOD FOR INTEGRATED DOWNHOLE SENSING AND OPTICAL FIBER MONITORING 审中-公开
标题翻译：一体化卧式感光和光纤监测系统与方法
公开(公告)号：US20120176250A1
公开(公告)日：2012-07-12
申请号：US12985845
申请日：2011-01-06
申请人： Roger G. Duncan , Robert M. Harman , Alexander M. Barry , Brooks A. Childers , Philip Robin Couch
发明人： Roger G. Duncan , Robert M. Harman , Alexander M. Barry , Brooks A. Childers , Philip Robin Couch
IPC分类号： G01V3/00
CPC分类号： G01V11/002
摘要： A system for measuring downhole parameters is disclosed. The system includes: a carrier configured to be disposed in a borehole in an earth formation; at least one optical fiber sensor in operable communication with the carrier; a measurement assembly including an electromagnetic signal source configured to transmit a first interrogation signal into the optical fiber sensor and a detector configured to receive a reflected signal indicative of a downhole parameter in response to the interrogation signal; and a processor configured to automatically receive scattered signals from the optical fiber sensor, generate distributed scattering data indicative of a condition of the optical fiber sensor and analyze changes in the distributed scattering data to identify changes in the condition of the optical fiber sensor.
摘要翻译：公开了一种用于测量井下参数的系统。该系统包括：被配置为设置在地层中的钻孔中的载体; 至少一个光纤传感器，其与所述载体可操作地通信; 测量组件，包括被配置为将第一询问信号传输到所述光纤传感器中的电磁信号源，以及被配置为响应于所述询问信号接收指示井下参数的反射信号的检测器; 以及处理器，被配置为自动接收来自光纤传感器的散射信号，产生指示光纤传感器状态的分散散射数据，并分析分布式散射数据的变化，以识别光纤传感器状态的变化。

5. 发明申请

US20120179378A1 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：US20120179378A1
公开(公告)日：2012-07-12
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： G01V5/04 , G06F19/00
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

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。

7. 发明授权

US09546915B2 Enhancing functionality of reflectometry based systems using parallel mixing operations 有权
标题翻译：使用并行混合操作增强基于反射计的系统的功能
公开(公告)号：US09546915B2
公开(公告)日：2017-01-17
申请号：US13271683
申请日：2011-10-12
申请人： Roger Glen Duncan , Alexander M. Barry , Brooks A. Childers , Robert M. Harman , Philip Robin Couch
发明人： Roger Glen Duncan , Alexander M. Barry , Brooks A. Childers , Robert M. Harman , Philip Robin Couch
IPC分类号： G01V3/00 , G01K11/32 , G01L1/24 , G01D5/353
CPC分类号： G01K11/32 , G01D5/35354 , G01L1/242
摘要： A method for estimating a parameter includes: generating an optical signal, the optical signal modulated via a modulation signal; transmitting the modulated optical signal from a light source into an optical fiber, the optical fiber including a plurality of sensing locations disposed along the optical fiber and configured to reflect light; receiving a reflected signal including light reflected from the plurality of sensing locations; and combining, in parallel, each of a plurality of reference signals with the reflected signal to estimate a value of the parameter.
摘要翻译：一种用于估计参数的方法包括：产生光信号，经由调制信号调制的光信号; 将调制的光信号从光源传输到光纤中，所述光纤包括沿着所述光纤布置并被配置为反射光的多个感测位置; 接收包括从所述多个检测位置反射的光的反射信号; 并且并行地将多个参考信号中的每一个与反射信号组合以估计该参数的值。

8. 发明授权

US09410903B2 Incoherent reflectometry utilizing chaotic excitation of light sources 有权
标题翻译：利用光源混沌激励的不相干反射
公开(公告)号：US09410903B2
公开(公告)日：2016-08-09
申请号：US13271968
申请日：2011-10-12
申请人： Roger Glen Duncan , Brooks A. Childers , Philip Robin Couch
发明人： Roger Glen Duncan , Brooks A. Childers , Philip Robin Couch
IPC分类号： G01V3/00 , G01N21/954
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。

9. 发明申请

US20130093599A1 INCOHERENT REFLECTOMETRY UTILIZING CHAOTIC EXCITATION OF LIGHT SOURCES 有权
标题翻译：利用光源引起的混沌激励的反应性测试
公开(公告)号：US20130093599A1
公开(公告)日：2013-04-18
申请号：US13271968
申请日：2011-10-12
申请人： Roger Glen Duncan , Brooks A. Childers , Philip Robin Couch
发明人： Roger Glen Duncan , Brooks A. Childers , Philip Robin Couch
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。

10. 发明授权

US09291505B2 Polarization scrambling in interferometer systems 有权
标题翻译：干涉仪系统中的极化加扰
公开(公告)号：US09291505B2
公开(公告)日：2016-03-22
申请号：US13707979
申请日：2012-12-07
申请人： Brooks A. Childers , Roger Glen Duncan , Ajit Balagopal , Dan R. Provenzano
发明人： Brooks A. Childers , Roger Glen Duncan , Ajit Balagopal , Dan R. Provenzano
IPC分类号： G01B9/02 , G01J4/00 , G01N21/954 , G01D5/353
CPC分类号： G01J4/00 , G01D5/35316 , G01D5/35393 , G01N21/954
摘要： A system and method to obtain and process interferometer output scans is described. The interferometer-based sensor system includes a tunable laser to transmit a transmit signal and a polarization scrambler to produce a polarization state change on the transmit signal. The system also includes an interferometer to provide an output scan based on the transmit signal with the polarization state change and a processor to process the output scan.
摘要翻译：描述了获得和处理干涉仪输出扫描的系统和方法。基于干涉仪的传感器系统包括用于传输发射信号的可调谐激光器和偏振加扰器，以在发射信号上产生极化状态变化。该系统还包括干涉仪，用于基于具有偏振态变化的发射信号和处理器来处理输出扫描来提供输出扫描。

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