公开(公告)号：US08989526B2

公开(公告)日：2015-03-24

申请号：US12375306

申请日：2007-07-12

申请人： Arthur H. Hartog

发明人： Arthur H. Hartog

IPC分类号： G02B6/00 ,  G01D5/353 ,  G01M11/00 ,  G01N21/63

CPC分类号： G01D5/353 ,  G01D5/35364 ,  G01D5/35383 ,  G01M11/319 ,  G01N2021/638 ,  H01S3/06754 ,  H01S3/094076 ,  H01S3/302 ,  H04B10/2916

摘要： A method of providing Raman amplification in an optical fiber sensing system, comprises generating a probe pulse of light and launching the pulse into a sensing optical fiber, generating pump light at a shorter wavelength and modulating it to produce a time-varying intensity profile, and launching the pump light into the sensing fiber. such that the intensity of the launched pump light during launch of the probe pulse is different from the intensity at other times. Raman amplification of backscattered light produced by the probe pulse as it propagates along the fiber is achieved, as is amplification of the probe pulse if the pump power is non-zero during launch of the probe pulse.

摘要翻译： 一种在光纤感测系统中提供拉曼放大的方法，包括产生光的探针脉冲并将脉冲发射到感测光纤中，产生较短波长的泵浦光并调制它以产生时变强度分布，以及 将泵浦光引入传感光纤。 使得在发射探针脉冲期间所发射的泵浦光的强度与其他时间的强度不同。 实现当探头脉冲沿着光纤传播时由探针脉冲产生的反向散射光的拉曼放大，如果在发射探针脉冲期间泵功率不为零，探针脉冲的放大。

公开(公告)号：US20110229099A1

公开(公告)日：2011-09-22

申请号：US12293424

申请日：2007-02-22

申请人： Arthur H. Hartog ,  Andrew P. Strong

发明人： Arthur H. Hartog ,  Andrew P. Strong

IPC分类号： G02B6/44

CPC分类号： G01L1/242 ,  G01L1/246 ,  G02B6/4401 ,  G02B6/4432

摘要： A fiber optic cable includes a strain element including a first optical fiber and an optical element including a second optical fiber. The optical element is compliantly coupled with the strain element to transfer a portion of strain experienced by the strain element to the optical element. A fiber optic cable includes a strain transfer member, a central optical fiber disposed through the strain transfer member, and a tight jacket mechanically coupling the central optical fiber and the strain transfer member. The fiber optic cable further includes a compliant layer disposed about and affixed to the strain transfer member; a peripheral optical fiber disposed in the compliant layer, such that a portion of the strain experienced by the strain transfer member is transferred to the peripheral optical fiber via the compliant layer; and a protective cover disposed about the compliant layer.

摘要翻译： 光纤电缆包括包括第一光纤的应变元件和包括第二光纤的光学元件。 光学元件与应变元件顺应地耦合以将应变元件经历的应变的一部分转移到光学元件。 光纤电缆包括应变传递部件，通过应变传递部件设置的中心光纤以及将中心光纤与应变传递部件机械连接的紧套。 光纤电缆还包括设置在应变传递部件周围并固定到应变传递部件上的柔顺层; 设置在柔性层中的周边光纤，使得应变传递部件经受的应变的一部分经由柔性层传递到外围光纤; 以及围绕柔顺层设置的保护盖。

公开(公告)号：US07946341B2

公开(公告)日：2011-05-24

申请号：US11934551

申请日：2007-11-02

申请人： Arthur H. Hartog ,  J. Ernest Brown ,  John Mervyn Cook ,  Jonathan Elphick ,  Paul S. Hammond ,  Ashley Bernard Johnson

发明人： Arthur H. Hartog ,  J. Ernest Brown ,  John Mervyn Cook ,  Jonathan Elphick ,  Paul S. Hammond ,  Ashley Bernard Johnson

IPC分类号： E21B47/00 ,  G02B6/00

CPC分类号： G01V8/02 ,  E21B41/0064 ,  E21B43/26 ,  E21B47/06 ,  E21B47/123 ,  G01V1/226 ,  G01V8/16 ,  Y02C10/14

摘要： Acoustic monitoring of a conduit, a wellbore or a reservoir associated with hydrocarbon production or transportation and/or carbon dioxide sequestration is carried out using a fibre optic cable extending along or appurtenant to it as a distributed interferometer. Coherent Raleigh noise generated by the transmission of the coherent beam of radiation through the fiber optic is detected and processed to identify an acoustic occurrence.

摘要翻译： 与碳氢化合物生产或运输和/或二氧化碳封存有关的导管，井眼或储层的声学监测使用沿着或附属于其的分布式干涉仪延伸的光缆进行。 检测并处理由透过光纤的辐射的相干射线的透射产生的相干罗利噪声，以识别声发生。

公开(公告)号：US07854267B2

公开(公告)日：2010-12-21

申请号：US12430486

申请日：2009-04-27

申请人： David R. Smith ,  Rogerio T. Ramos ,  Arthur H. Hartog ,  Vladimir Vaynshteyn

发明人： David R. Smith ,  Rogerio T. Ramos ,  Arthur H. Hartog ,  Vladimir Vaynshteyn

IPC分类号： E21B41/00 ,  E21B47/01

CPC分类号： F42C11/00 ,  E21B23/00 ,  E21B47/123 ,  F42B3/113 ,  G01V11/002

摘要： The present invention comprises a system and methods to actuate downhole tools by transmitting an optical signal through an optical fiber to the downhole tool. The optical signal can comprise a specific optical signal frequency, signal, wavelength or intensity. The downhole tool can comprise packers, perforating guns, flow control valves, such as sleeve valves and ball valves, samplers, sensors, pumps, screens (such as to expand), chemical cutters, plugs, detonators, or nipples.

摘要翻译： 本发明包括通过将光信号通过光纤传输到井下工具来致动井下工具的系统和方法。 光信号可以包括特定的光信号频率，信号，波长或强度。 井下工具可以包括封隔器，射孔枪，流量控制阀，例如套管阀和球阀，取样器，传感器，泵，屏幕（如扩展），化学切割器，塞子，雷管或乳头。

公开(公告)号：US20100002226A1

公开(公告)日：2010-01-07

申请号：US12444186

申请日：2007-09-20

申请人： Arthur H. Hartog

发明人： Arthur H. Hartog

IPC分类号： G01N21/47

CPC分类号： G01M11/319 ,  G01D5/35364

摘要： A method for measuring Brillouin backscattering from an optical fibre (18), comprises frequency mixing a first signal with a frequency f B (t) representative of the Brillouin frequency shift in backscattered light received from a deployed optical fibre with a second signal at a frequency f i (t) that varies in time in the same manner as a Brillouin shift previously measured from the fibre to produce a difference signal with a difference frequency iF(t) that has a nominally constant value corresponding to the situation where the received light has a Brillouin shift that matches the previously measured shift. The difference signal is acquired and processed to determine properties of the Brillouin shift and corresponding physical parameters producing the shift. The frequency mixing can be carried out. optically or electrically. Techniques for acquisition of the difference signal include the use of parallel frequency measurement channels and fast rate digital sampling.

摘要翻译： 一种用于从光纤（18）测量布里渊后向散射的方法，包括以表示频率f B（t）的频率混合第一信号，频率f B（t）表示从部署的光纤接收的后向散射光中的布里渊频移，频率为第二信号 fi（t）以与先前从光纤测量的布里渊偏移相同的方式在时间上变化，以产生具有与所接收的光具有的情况相对应的具有标称常数值的差异频率iF（t）的差分信号 布里渊偏移符合先前测量的位移。 获取并处理差分信号以确定布里渊位移的特性和产生偏移的相应物理参数。 可以进行混频。 光学或电学。 用于采集差分信号的技术包括使用并行频率测量通道和快速数字采样。

公开(公告)号：US20090263069A1

公开(公告)日：2009-10-22

申请号：US12375306

申请日：2007-07-12

申请人： Arthur H. Hartog

发明人： Arthur H. Hartog

IPC分类号： G02B6/00 ,  H01S3/30

CPC分类号： G01D5/353 ,  G01D5/35364 ,  G01D5/35383 ,  G01M11/319 ,  G01N2021/638 ,  H01S3/06754 ,  H01S3/094076 ,  H01S3/302 ,  H04B10/2916

摘要： A method of providing Raman amplification in an optical fiber sensing system, comprises generating a probe pulse of light and launching the pulse into a sensing optical fiber, generating pump light at a shorter wavelength and modulating it to produce a time-varying intensity profile, and launching the pump light into the sensing fiber. such that the intensity of the launched pump light during launch of the probe pulse is different from the intensity at other times. Raman amplification of backscattered light produced by the probe pulse as it propagates along the fiber is achieved, as is amplification of the probe pulse if the pump power is non-zero during launch of the probe pulse.

摘要翻译： 一种在光纤感测系统中提供拉曼放大的方法，包括产生光的探针脉冲并将脉冲发射到感测光纤中，产生较短波长的泵浦光并调制它以产生时变强度分布，以及 将泵浦光引入传感光纤。 使得在发射探针脉冲期间所发射的泵浦光的强度与其他时间的强度不同。 实现当探头脉冲沿着光纤传播时由探针脉冲产生的反向散射光的拉曼放大，如果在发射探针脉冲期间泵功率不为零，探针脉冲的放大。

公开(公告)号：US07304725B2

公开(公告)日：2007-12-04

申请号：US10502616

申请日：2003-01-30

申请人： Arthur H. Hartog ,  Peter C. Wait

发明人： Arthur H. Hartog ,  Peter C. Wait

IPC分类号： G01N21/00

CPC分类号： G01M11/319 ,  G01M11/3109 ,  H04B10/071

摘要： An optical time domain reflectometry apparatus for sensing a parameter in a region of interest is characterized in that the optical fiber includes a first section into which optical radiation at the probe wavelength is launched and a second section deployed in the region of interest. The first section has a higher intensity threshold for the onset of non-linear effects than the second section. The source launches the optical radiation into the first section at an intensity lower than the non-linear effects intensity threshold of the first section but higher than the non-linear effects intensity threshold of the second section. The attenuation characteristics of the first section are chosen such that the intensity of the optical radiation at the probe wavelength that reaches the second section is below the threshold for the onset of non-linear effects of the second section.

摘要翻译： 用于感测感兴趣区域中的参数的光学时域反射测量装置的特征在于，光纤包括其中发射探针波长的光辐射的第一部分和在感兴趣区域中部署的第二部分。 第一部分具有比第二部分更高的非线性效应开始的强度阈值。 光源以比第一部分的非线性效应强度阈值低的强度将光辐射发射到第一部分中，但高于第二部分的非线性效应强度阈值。 选择第一部分的衰减特性使得到达第二部分的探针波长处的光辐射的强度低于第二部分的非线性效应开始的阈值。

公开(公告)号：US4823166A

公开(公告)日：1989-04-18

申请号：US897943

申请日：1986-08-19

申请人： Arthur H. Hartog ,  Martin P. Gold ,  Adrian P. Leach

发明人： Arthur H. Hartog ,  Martin P. Gold ,  Adrian P. Leach

IPC分类号： G02B6/00 ,  G01D5/26 ,  G01D5/353 ,  G01D21/00 ,  G01K11/12 ,  G01K11/32 ,  G01M11/00 ,  G01M11/02 ,  G01N21/49 ,  G01N21/65 ,  G01P21/00 ,  G01J5/10

CPC分类号： G01M11/3109 ,  G01D5/268 ,  G01D5/35383 ,  G01K11/32 ,  G01M11/39 ,  G01K2007/166

摘要： An optical time-domain reflectometry method of sensing respective values of a physical parameter, such as temperature, at different locations along an optical fibre, in which back-scattered optical radiation is used to produce output signals indicative of the values being sensed, is improved by employing optical filtering means to ensure that the back-scattered radiation used is restricted to a preselected single spectral line resulting from inelastic scattering in the fibre, for example one of the Anti-Stokes Raman lines, or to two mutually adjacent such lines.

摘要翻译： 光学时域反射测量方法，其用于检测在沿着光纤的不同位置处的物理参数（诸如温度）的各个值，其中使用反向散射光辐射来产生指示被感测的值的输出信号， 通过采用光学滤波装置来确保所使用的背散射辐射被限制在由光纤中的非弹性散射（例如反斯托克斯拉曼线之一）或两个相互相邻的这些线之间的非选择的单个光谱线。

公开(公告)号：US09151152B2

公开(公告)日：2015-10-06

申请号：US13528395

申请日：2012-06-20

申请人： Dominic Brady ,  Arthur H. Hartog

发明人： Dominic Brady ,  Arthur H. Hartog

IPC分类号： E21B47/00 ,  E21B47/10 ,  E21B47/06 ,  G01N33/28

CPC分类号： E21B47/1005 ,  E21B47/065 ,  G01N33/28

摘要： A fiber optic sensing tool assembly is deployed in a wellbore that penetrates a hydrocarbon-bearing formation of interest to measure fluid composition and other fluid characteristics. This measurement is implemented by deploying the tool in a region in which there is substantially no fluid flow and by heating the tool through an optical delivery system. Parameters of the fluid are monitored as a function of the heating of the tool to derive information that is indicative of fluid composition and other fluid characteristics.

摘要翻译： 光纤感测工具组件部署在穿透感兴趣的含烃地层的井筒中，以测量流体组成和其它流体特性。 该测量通过将工具部署在基本上不存在流体流动的区域中并且通过光学传送系统加热工具来实现。 根据工具的加热来监测流体的参数，以得到指示流体组成和其它流体特性的信息。

公开(公告)号：US08408064B2

公开(公告)日：2013-04-02

申请号：US12611952

申请日：2009-11-04

申请人： Arthur H. Hartog ,  Douglas Miller ,  Kamal Kader ,  Gareth P. Lees ,  Graeme Hilton ,  Stephen Mullens

发明人： Arthur H. Hartog ,  Douglas Miller ,  Kamal Kader ,  Gareth P. Lees ,  Graeme Hilton ,  Stephen Mullens

IPC分类号： G01N29/24 ,  G01N29/44

CPC分类号： E21B47/123 ,  E21B47/101 ,  G01V1/226 ,  G01V1/44 ,  G01V8/16

摘要： A distributed acoustic wave detection system and method is provided. The system may include a fiber optic cable deployed in a well and configured to react to pressure changes resulting from a propagating acoustic wave and an optical source configured to launch interrogating pulses into the fiber optic cable. In addition, the system may include a receiver configured to detect coherent Rayleigh noise produced in response to the interrogating pulses. The CRN signal may be use to track the propagation of the acoustic wave in the well.

摘要翻译： 提供了一种分布式声波检测系统和方法。 系统可以包括部署在井中并被配置为对由传播声波引起的压力变化和被配置为向盘状光缆发射询问脉冲的光源的光纤电缆。 此外，系统可以包括被配置为检测响应于询问脉冲而产生的相干瑞利噪声的接收机。 CRN信号可以用于跟踪声波在井中的传播。