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1. 发明授权

US09476294B2 Device and method for discrete distributed optical fiber pressure sensing 有权
标题翻译：离散分布式光纤压力感测装置及方法
公开(公告)号：US09476294B2
公开(公告)日：2016-10-25
申请号：US12956777
申请日：2010-11-30
申请人： Robert M. Harman , Philippe Legrand , Brooks Childers , Roger Duncan , Alan Reynolds , Sam Dippold
发明人： Robert M. Harman , Philippe Legrand , Brooks Childers , Roger Duncan , Alan Reynolds , Sam Dippold
IPC分类号： G01L1/24 , E21B47/06 , E21B47/12 , G01L11/02 , G01L19/00
CPC分类号： E21B47/06 , E21B47/123 , G01L1/243 , G01L11/025 , G01L19/0092
摘要： An apparatus for estimating at least one parameter includes: a deformable member configured to deform in response to the at least one parameter; a housing surrounding at least a portion of an external surface of the deformable member to define an isolated region around the portion and an isolated surface of the deformable member; and at least one optical fiber sensor disposed on the isolated surface and held in an operable relationship with the isolated surface, the at least one optical fiber sensor configured to generate a signal in response to a deformation of the deformable member.
摘要翻译：用于估计至少一个参数的装置包括：可变形构件，被配置为响应于所述至少一个参数而变形; 围绕所述可变形构件的外表面的至少一部分的壳体，以限定所述可变形构件的所述部分和隔离表面周围的隔离区域; 以及至少一个光纤传感器，其布置在所述隔离表面上并且与所述隔离表面保持可操作的关系，所述至少一个光纤传感器被配置为响应于所述可变形构件的变形而产生信号。

2. 发明授权

US08965147B2 Bend insensitive optical fiber with improved hydrogen resistance 有权
标题翻译：具有改善耐氢性的弯曲不敏感光纤
公开(公告)号：US08965147B2
公开(公告)日：2015-02-24
申请号：US12634296
申请日：2009-12-09
申请人： Daniel Homa , Brooks Childers
发明人： Daniel Homa , Brooks Childers
IPC分类号： G02B6/00 , G02B6/02 , G02B6/036 , G01D5/353 , G01K11/32 , G02B6/293
CPC分类号： G02B6/03627 , G01D5/3538 , G01K11/3206 , G02B6/29319
摘要： An optical fiber includes: a core including a photosensitive material disposed therein, the core having a first index of refraction; a depressed cladding surrounding the core and having a second index of refraction that is lower than the first index of refraction; and an outer cladding surrounding the depressed cladding and having a third index of refraction that is higher than the depressed cladding.
摘要翻译：光纤包括：芯，其包括设置在其中的感光材料，所述芯具有第一折射率; 围绕所述芯并且具有低于所述第一折射率的第二折射率的凹陷包层; 以及围绕所述凹陷包层并且具有高于所述凹陷包层的第三折射率的外包层。

3. 发明授权

US08401355B2 Hydrogen-resistant optical fiber/grating structure suitable for use in downhole sensor applications 有权
标题翻译：适用于井下传感器应用的耐氢光纤/光栅结构
公开(公告)号：US08401355B2
公开(公告)日：2013-03-19
申请号：US13348882
申请日：2012-01-12
申请人： Daniel Scott Homa , Brooks Childers
发明人： Daniel Scott Homa , Brooks Childers
IPC分类号： G02B6/036 , G02B6/34
CPC分类号： G02B6/02114 , C03C13/046 , G02B6/021 , G02B6/03627 , G02B6/03694
摘要： A hydrogen-resistant optical fiber particularly well-suitable for downhole applications comprises a relatively thick pure silica core and a depressed-index cladding layer. Interposed between the depressed-index cladding layer and the core is a relatively thin germanium-doped interface. By maintaining a proper relationship between the pure silica core diameter and the thickness of the germanium-doped interface, a majority (preferably, more than 65%) of the propagating signal can be confined within the pure silica core and, therefore, be protected from hydrogen-induced attenuation problems associated with the presence of germanium (as is common in downhole fiber applications). The hydrogen-resistant fiber of the present invention can be formed to include one or more Bragg gratings within the germanium-doped interface, useful for sensing applications.
摘要翻译：特别适用于井下应用的耐氢光纤包括相对较厚的纯二氧化硅芯和凹陷折射率包层。凹陷折射率包层和芯之间是相对较薄的锗掺杂界面。通过保持纯二氧化硅芯直径和锗掺杂界面的厚度之间的适当关系，传播信号的大部分（优选超过65％）可以被限制在纯二氧化硅核心内，因此被保护与锗的存在相关的氢诱发的衰减问题（如井下纤维应用中常见的）。本发明的耐氢纤维可以形成为在锗掺杂界面内包括一个或多个布拉格光栅，用于感测应用。

4. 发明申请

US20130021615A1 SYSTEM AND METHOD OF DISTRIBUTED FIBER OPTIC SENSING INCLUDING INTEGRATED REFERENCE PATH 有权
标题翻译：分布式光纤感测系统和方法，包括集成参考路径
公开(公告)号：US20130021615A1
公开(公告)日：2013-01-24
申请号：US13187853
申请日：2011-07-21
申请人： Roger Duncan , Brooks Childers , Philip Robin Couch
发明人： Roger Duncan , Brooks Childers , Philip Robin Couch
IPC分类号： G01B9/02
CPC分类号： G01V1/46 , G01D5/35316 , G01H9/004 , G01K11/3206 , G01L1/246 , G01L25/00 , G01V1/226
摘要： An apparatus for estimating a parameter includes: an optical fiber including at least one core configured to transmit an interrogation signal and including a plurality of sensing locations distributed along a measurement length of the optical fiber and configured to reflect light; a reference optical path configured to transmit a reference signal, the reference optical path disposed in a fixed relationship to the at least one core and extending at least substantially parallel to the at least one core, the reference optical path including a reference reflector that defines a cavity length corresponding to the measurement length; a detector configured to receive a reflected return signal; a reference interferometer configured to receive at least a reference signal and generate an interferometric reference signal; and a processor configured to apply the interferometric reference signal to the reflected return signal to compensate for one or more environmental parameters.
摘要翻译：一种用于估计参数的装置包括：光纤，包括至少一个核心，其被配置为传送询问信号并且包括沿着所述光纤的测量长度分布的多个感测位置，并且被配置为反射光; 参考光路，被配置为传送参考信号，所述参考光路以固定关系设置到所述至少一个核并至少基本上平行于所述至少一个核延伸，所述参考光路包括参考反射器，所述参考反射器限定腔长对应测量长度; 检测器，被配置为接收反射的返回信号; 参考干涉仪，被配置为接收至少参考信号并产生干涉参考信号; 以及处理器，被配置为将干涉参考信号应用于反射的返回信号以补偿一个或多个环境参数。

5. 发明申请

US20120175795A1 Hydrogen-Resistant Optical Fiber/Grating Structure Suitable For Use In Downhole Sensor Applications 有权
标题翻译：适用于井下传感器应用的耐氢光纤/光栅结构
公开(公告)号：US20120175795A1
公开(公告)日：2012-07-12
申请号：US13348882
申请日：2012-01-12
申请人： Daniel Scott Homa , Brooks Childers
发明人： Daniel Scott Homa , Brooks Childers
IPC分类号： B29D11/00
CPC分类号： G02B6/02114 , C03C13/046 , G02B6/021 , G02B6/03627 , G02B6/03694
摘要： A hydrogen-resistant optical fiber particularly well-suitable for downhole applications comprises a relatively thick pure silica core and a depressed-index cladding layer. Interposed between the depressed-index cladding layer and the core is a relatively thin germanium-doped interface. By maintaining a proper relationship between the pure silica core diameter and the thickness of the germanium-doped interface, a majority (preferably, more than 65%) of the propagating signal can be confined within the pure silica core and, therefore, be protected from hydrogen-induced attenuation problems associated with the presence of germanium (as is common in downhole fiber applications). The hydrogen-resistant fiber of the present invention can be formed to include one or more Bragg gratings within the germanium-doped interface, useful for sensing applications.
摘要翻译：特别适用于井下应用的耐氢光纤包括相对较厚的纯二氧化硅芯和凹陷折射率包层。凹陷折射率包层和芯之间是相对较薄的锗掺杂界面。通过保持纯二氧化硅芯直径和锗掺杂界面的厚度之间的适当关系，传播信号的大部分（优选超过65％）可以被限制在纯二氧化硅核心内，因此被保护与锗的存在相关的氢诱发的衰减问题（如井下纤维应用中常见的）。本发明的耐氢纤维可以形成为在锗掺杂界面内包括一个或多个布拉格光栅，用于感测应用。

6. 发明申请

US20110191031A1 DEVICE AND METHOD FOR DISCRETE DISTRIBUTED OPTICAL FIBER PRESSURE SENSING 有权
标题翻译：用于离散光纤光纤传感的设备和方法
公开(公告)号：US20110191031A1
公开(公告)日：2011-08-04
申请号：US12956777
申请日：2010-11-30
申请人： Robert M. Harman , Philippe Legrand , Brooks Childers , Roger Duncan , Alan Reynolds , Sam Dippold
发明人： Robert M. Harman , Philippe Legrand , Brooks Childers , Roger Duncan , Alan Reynolds , Sam Dippold
IPC分类号： G06F19/00 , G02B6/00
CPC分类号： E21B47/06 , E21B47/123 , G01L1/243 , G01L11/025 , G01L19/0092
摘要： An apparatus for estimating at least one parameter includes: a deformable member configured to deform in response to the at least one parameter; a housing surrounding at least a portion of an external surface of the deformable member to define an isolated region around the portion and an isolated surface of the deformable member; and at least one optical fiber sensor disposed on the isolated surface and held in an operable relationship with the isolated surface, the at least one optical fiber sensor configured to generate a signal in response to a deformation of the deformable member.
摘要翻译：用于估计至少一个参数的装置包括：可变形构件，被配置为响应于所述至少一个参数而变形; 围绕所述可变形构件的外表面的至少一部分的壳体，以限定所述可变形构件的所述部分和隔离表面周围的隔离区域; 以及至少一个光纤传感器，其布置在所述隔离表面上并且与所述隔离表面保持可操作的关系，所述至少一个光纤传感器被配置为响应于所述可变形构件的变形而产生信号。

7. 发明申请

US20070280584A1 MULTI-CORE OPTICAL FIBER PRESSURE SENSOR 有权
标题翻译：多芯光纤传感器
公开(公告)号：US20070280584A1
公开(公告)日：2007-12-06
申请号：US11445765
申请日：2006-06-02
申请人： Brooks Childers
发明人： Brooks Childers
IPC分类号： G02B6/00
CPC分类号： G01L11/025 , G02B6/02042 , G02B6/02057
摘要： A multi-core optical fiber pressure sensor is described, which sensor includes an optical fiber having at least two cores, wherein the cores have collocated measurement portions, for example in-fiber interferometers or Bragg Grating portions. In an exemplary embodiment, the fiber is arranged such that a pressure induced force will act on the multi-core fiber at said collocated position, affecting the light guiding cores in a different manner. In another exemplary embodiment, the optical fiber is configured to bend in response to pressure changes.
摘要翻译：描述了多芯光纤压力传感器，该传感器包括具有至少两个芯的光纤，其中芯具有并置的测量部分，例如光纤内干涉仪或布拉格光栅部分。在示例性实施例中，纤维布置成使得压力诱导力将作用在所述并置位置处的多芯纤维上，以不同的方式影响导光芯。在另一示例性实施例中，光纤被配置为响应于压力变化而弯曲。

8. 发明申请

US20160223710A1 ARRAYED WAVE DIVISION MULTIPLEXING TO IMPROVE SPATIAL RESOLUTION OF IOFDR FIBER BRAGG SENSING SYSTEM 有权
标题翻译：阵列波段多路复用以改进IOFDR光纤传感系统的空间分辨率
公开(公告)号：US20160223710A1
公开(公告)日：2016-08-04
申请号：US14614126
申请日：2015-02-04
申请人： Alexander M. Barry , Brooks Childers , Roger Duncan
发明人： Alexander M. Barry , Brooks Childers , Roger Duncan
IPC分类号： G01V8/16 , G01M11/00 , G02B6/34
CPC分类号： G01V8/16 , E21B47/00 , G01D5/35316 , G01L1/246 , G01L11/025 , G01M11/3172 , G02B6/34
摘要： A downhole property measurement apparatus includes an optical fiber having a series fiber Bragg gratings with interleaved resonant wavelengths such that adjacent fiber Bragg gratings have different resonant wavelengths and a difference between adjacent resonant wavelengths is greater than a dynamic wavelength range of each of the adjacent fiber Bragg gratings. An optical interrogator is in optical communication with the optical fiber and configured to emit a frequency domain light signal having a swept wavelength for a first time duration and a chirp having a modulation of amplitude with a varying of wavelength for a second time duration that is less than the first time duration. A return light signal is transformed by the optical interrogator into a time domain to determine a resonant wavelength shift and corresponding location of each of the gratings. A processor converts the resonant wavelength shifts into the downhole property.
摘要翻译：井下性质测量装置包括具有交错谐振波长的串联光纤布拉格光栅的光纤，使得相邻的光纤布拉格光栅具有不同的谐振波长，并且相邻谐振波长之间的差大于每个相邻光纤布拉格的动态波长范围光栅。光学询问器与光纤光学通信，并且被配置为发射具有第一持续时间的扫描波长的频域光信号和具有波长调制的啁啾，其具有波长变化，持续时间较短的第二持续时间比第一次持续时间。返回光信号被光学询问器转换成时域以确定每个光栅的谐振波长偏移和相应的位置。处理器将谐振波长偏移转换成井下性质。

9. 发明授权

US08025445B2 Method of deployment for real time casing imaging 有权
标题翻译：实时套管成像部署方法
公开(公告)号：US08025445B2
公开(公告)日：2011-09-27
申请号：US12474412
申请日：2009-05-29
申请人： Frederick Henry Kreisler Rambow , Brad W. Davis , Brooks Childers , Travis Hall , Phillip Edward Abshire
发明人： Frederick Henry Kreisler Rambow , Brad W. Davis , Brooks Childers , Travis Hall , Phillip Edward Abshire
IPC分类号： G02B6/255 , G02B6/00
CPC分类号： G02B6/4446 , E21B47/011 , E21B47/123 , Y10T29/49826
摘要： A method for imaging a structure disposed in a borehole penetrating the earth, the method including: selecting a splice housing having a first port configured to seal the housing to a first fiber optic cable and a second port configured to seal the housing to a fiber optic sensor configured to image the structure, wherein the housing includes a sealed interior volume sufficient to contain a splice of optical fibers for protection and to enable a functional bend of at least ninety degrees for at least one spliced optical fiber; disposing a splice between an optical fiber of the first fiber optic cable and an optical fiber of the fiber optic sensor in the splice housing; disposing the splice housing containing the splice in the borehole; attaching the fiber optic sensor to the structure; and disposing the structure in the borehole after the splice housing is disposed in the borehole.
摘要翻译：一种用于对设置在穿透地球的钻孔中的结构进行成像的方法，所述方法包括：选择具有被配置为将所述壳体密封到第一光纤电缆的第一端口的接头壳体和被配置为将所述壳体密封到光纤传感器，被配置为对所述结构进行成像，其中所述壳体包括密封的内部体积，其足以容纳用于保护的光纤接头，并且对于至少一个拼接光纤能够实现至少九十度的功能弯曲; 在第一光纤电缆的光纤与接头外壳中的光纤传感器的光纤之间设置接头; 将包含接头的接头壳体设置在井眼中; 将光纤传感器连接到结构上; 并且在接头壳体设置在钻孔中之后将结构设置在钻孔中。

10. 发明申请

US20110135246A1 BEND INSENSITIVE OPTICAL FIBER WITH IMPROVED HYDROGEN RESISTANCE 有权
标题翻译：弯曲具有改善耐氢性的柔性光纤
公开(公告)号：US20110135246A1
公开(公告)日：2011-06-09
申请号：US12634296
申请日：2009-12-09
申请人： Daniel Homa , Brooks Childers
发明人： Daniel Homa , Brooks Childers
IPC分类号： G02B6/00 , G02B6/02
CPC分类号： G02B6/03627 , G01D5/3538 , G01K11/3206 , G02B6/29319
摘要： An optical fiber includes: a core including a photosensitive material disposed therein, the core having a first index of refraction; a depressed cladding surrounding the core and having a second index of refraction that is lower than the first index of refraction; and an outer cladding surrounding the depressed cladding and having a third index of refraction that is higher than the depressed cladding.
摘要翻译：光纤包括：芯，其包括设置在其中的感光材料，所述芯具有第一折射率; 围绕所述芯并且具有低于所述第一折射率的第二折射率的凹陷包层; 以及围绕所述凹陷包层并且具有高于所述凹陷包层的第三折射率的外包层。

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