公开(公告)号：US08385692B2

公开(公告)日：2013-02-26

申请号：US12472808

申请日：2009-05-27

Applicant: Daniel Homa ,  Brooks Childers

Inventor： Daniel Homa ,  Brooks Childers

IPC: G02B6/00 ,  G02B1/12

CPC classification number: G02B6/29319 ,  G01D5/35303 ,  G02B6/02138 ,  G02B6/02152

Abstract: An apparatus for determining a property, the apparatus including: an optical fiber having a series of fiber Bragg gratings, each fiber Bragg grating in the series being characterized by a light reflection frequency at which the fiber Bragg grating reflects light; wherein: the light reflection frequency for each fiber Bragg grating is different from the light reflection frequency of each adjacent fiber Bragg grating to minimize resonance of light between at least two of the fiber Bragg gratings in the series; at least two fiber Bragg gratings in the series have light reflection frequencies that overlap; and a change in the light reflection frequency of each fiber Bragg grating in the series is related to the property at the location of the each fiber Bragg grating.

Abstract translation: 一种用于确定特性的装置，所述装置包括：具有一系列光纤布拉格光栅的光纤，该系列中的每个光纤布拉格光栅的特征在于光纤布拉格光栅反射光的光反射频率; 其中：每个光纤布拉格光栅的光反射频率不同于每个相邻光纤布拉格光栅的光反射频率，以使光在串联中的至少两个光纤布拉格光栅之间的共振最小化; 该系列中至少两个光纤布拉格光栅具有重叠的光反射频率; 并且该系列中每个光纤布拉格光栅的光反射频率的变化与每个光纤布拉格光栅位置处的特性有关。

公开(公告)号：US20110293232A1

公开(公告)日：2011-12-01

申请号：US11807151

申请日：2007-05-25

Applicant: Daniel Scott Homa ,  Brooks Childers

Inventor： Daniel Scott Homa ,  Brooks Childers

IPC: G02B6/028 ,  C03C25/22 ,  C03B37/018

CPC classification number: G02B6/02114 ,  C03C13/046 ,  G02B6/021 ,  G02B6/03627 ,  G02B6/03694

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100303427A1

公开(公告)日：2010-12-02

申请号：US12474412

申请日：2009-05-29

Applicant: Frederick Henry Kreisler Rambow ,  Brad W. Davis ,  Brooks Childers ,  Travis Hall ,  Phillip E. Abshire

Inventor： Frederick Henry Kreisler Rambow ,  Brad W. Davis ,  Brooks Childers ,  Travis Hall ,  Phillip E. Abshire

IPC: G02B6/255 ,  B23P11/00 ,  B32B37/12

CPC classification number: G02B6/4446 ,  E21B47/011 ,  E21B47/123 ,  Y10T29/49826

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07664347B2

公开(公告)日：2010-02-16

申请号：US11448475

申请日：2006-06-07

Applicant: Brooks Childers ,  John Guarniere ,  Daniel Homa

Inventor： Brooks Childers ,  John Guarniere ,  Daniel Homa

IPC: G02B6/00

CPC classification number: G01D3/0365 ,  G01D5/35383 ,  G01L9/0039 ,  G01L9/0076

Abstract: A multi-core optical fiber 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 provided with collocated measurement portions during fiberization to eliminate drift factors and to provide temperature corrected parameter measurement capabilities.

Abstract translation: 描述了一种多芯光纤传感器，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，纤维化期间纤维被提供并置的测量部分以消除漂移因子并提供温度校正的参数测量能力。

公开(公告)号：US07257301B2

公开(公告)日：2007-08-14

申请号：US11095804

申请日：2005-03-31

Applicant: Daniel Homa ,  John W. Guarniere ,  Paul Zerwekh ,  Brooks Childers ,  Justin Crusse

Inventor： Daniel Homa ,  John W. Guarniere ,  Paul Zerwekh ,  Brooks Childers ,  Justin Crusse

IPC: G02B6/02

CPC classification number: C03C13/046 ,  C03C25/1061 ,  G02B6/02 ,  G02B6/02395

Abstract: An optical fiber resistant to hydrogen-induced attenuation losses at both relatively low and relatively high temperatures includes a substantially pure silica core and a hydrogen retarding layer. The hydrogen retarding coating may be made of carbon, metal, or silicon nitride. The fiber may also include a cladding layer, a second silica layer, and a protective outer sheath.

Abstract translation: 在相对较低和相对高的温度下，耐受氢诱导的衰减损耗的光纤包括基本上纯的二氧化硅芯和阻氢层。 阻氢涂层可以由碳，金属或氮化硅制成。 纤维还可以包括包覆层，第二二氧化硅层和保护外护套。

公开(公告)号：US07104141B2

公开(公告)日：2006-09-12

申请号：US10653996

申请日：2003-09-04

Applicant: Paul S. Zerwekh ,  Clark D. Boyd ,  Brooks Childers ,  Daniel C. Blevins

Inventor： Paul S. Zerwekh ,  Clark D. Boyd ,  Brooks Childers ,  Daniel C. Blevins

IPC: G01L1/24

CPC classification number: G01L19/0092 ,  G01D5/35312 ,  G01K11/3206 ,  G01L11/025

Abstract: An optical sensor that includes multiple filter cavities for the simultaneous, co-located measurement of pressure and a temperature in a single structure. The sensor may include a single launch fiber bonded to a tube a pre-determined distance from a reflective fiber. The end of the reflective fiber not encased within the tube is enclosed within a cap formed of a material that has a refractive index that changes with changing temperature. Alternatively, a material having a refractive index that changes with changing temperature can be inserted into the tube to take the place of the reflective fiber. Multiple launch fibers may be incorporated within a tube.

Abstract translation: 一种光学传感器，包括多个过滤腔，用于同时共同测量单个结构中的压力和温度。 传感器可以包括从反射光纤预定的距离与管连接的单个发射光纤。 未包封在管内的反射纤维的端部封装在由具有随温度变化而变化的折射率的材料形成的盖中。 或者，可以将具有随着温度变化而变化的折射率的材料插入到管中以代替反射纤维。 多个发射纤维可以并入管中。

公开(公告)号：US20160223710A1

公开(公告)日：2016-08-04

申请号：US14614126

申请日：2015-02-04

Applicant: Alexander M. Barry ,  Brooks Childers ,  Roger Duncan

Inventor： Alexander M. Barry ,  Brooks Childers ,  Roger Duncan

IPC: G01V8/16 ,  G01M11/00 ,  G02B6/34

CPC classification number: G01V8/16 ,  E21B47/00 ,  G01D5/35316 ,  G01L1/246 ,  G01L11/025 ,  G01M11/3172 ,  G02B6/34

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08025445B2

公开(公告)日：2011-09-27

申请号：US12474412

申请日：2009-05-29

Applicant: Frederick Henry Kreisler Rambow ,  Brad W. Davis ,  Brooks Childers ,  Travis Hall ,  Phillip Edward Abshire

Inventor： Frederick Henry Kreisler Rambow ,  Brad W. Davis ,  Brooks Childers ,  Travis Hall ,  Phillip Edward Abshire

IPC: G02B6/255 ,  G02B6/00

CPC classification number: G02B6/4446 ,  E21B47/011 ,  E21B47/123 ,  Y10T29/49826

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110135246A1

公开(公告)日：2011-06-09

申请号：US12634296

申请日：2009-12-09

Applicant: Daniel Homa ,  Brooks Childers

Inventor： Daniel Homa ,  Brooks Childers

IPC: G02B6/00 ,  G02B6/02

CPC classification number: G02B6/03627 ,  G01D5/3538 ,  G01K11/3206 ,  G02B6/29319

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100166358A1

公开(公告)日：2010-07-01

申请号：US12346164

申请日：2008-12-30

Applicant: Daniel Homa ,  Brooks Childers

Inventor： Daniel Homa ,  Brooks Childers

IPC: G02B6/00 ,  B29D11/00

CPC classification number: B29D11/00721 ,  G01K11/3206 ,  G01L1/246 ,  G01L1/26 ,  G02B6/02047 ,  G02B6/021 ,  G02B6/02133 ,  G02B6/02142 ,  G02B6/03694

Abstract: A multiple-layer fiber-optic sensor is described with dual Bragg gratings in layers of different materials, so that the known temperature and strain response properties of each material may be utilized to simultaneously correct the sensor output for temperature and strain effects.

Abstract translation: 使用不同材料层的双布拉格光栅来描述多层光纤传感器，使得可以利用每种材料的已知温度和应变响应特性来同时校正传感器输出的温度和应变效应。