专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2011149613A3 DETECTION OF SEISMIC SIGNALS USING FIBER OPTIC DISTRIBUTED SENSORS 审中-公开
标题翻译：使用光纤分布式传感器检测地震信号
公开(公告)号：WO2011149613A3
公开(公告)日：2012-02-02
申请号：PCT/US2011033845
申请日：2011-04-26
申请人： SCHLUMBERGER CA LTD , SCHLUMBERGER SERVICES PETROL , SCHLUMBERGER HOLDINGS , SCHLUMBERGER TECHNOLOGY BV , PRAD RES & DEV LTD , COATES RICHARD T , MILLER DOUGLAS E , HARTOG ARTHUR H , WILSON COLIN A , BRADY DOMINIC , MENKITI HENRY , AUZERAIS FRANCOIS M , BRADFORD IAN
发明人： COATES RICHARD T , MILLER DOUGLAS E , HARTOG ARTHUR H , WILSON COLIN A , BRADY DOMINIC , MENKITI HENRY , AUZERAIS FRANCOIS M , BRADFORD IAN
IPC分类号： G01V1/40 , E21B47/00 , G01V1/28
CPC分类号： G01H9/004 , E21B47/01 , G01D5/35361 , G01V1/18 , G01V1/208 , G01V1/226 , G01V1/40 , G01V1/42 , G01V1/52
摘要： A fiber optic distributed vibration system for detecting seismic signals in an earth formation is provided. The system includes a fiber optic cable deployed in a borehole that extends into the earth formation and which is configured to react along its length to a seismic wave incident on the fiber optic cable from outside the borehole. An optical source launches an optical signal into the fiber optic cable while the seismic wave is incident thereon. A receiver detects coherent Rayleigh noise (CRN) produced in response to the optical signal. A processing circuit processes the detected CRN signal to determine characteristics of the earth formation.
摘要翻译：提供了一种用于检测地层中地震信号的光纤分布式振动系统。该系统包括布置在钻孔中的光缆，其延伸到地层中并被构造成沿着其长度反射从钻孔外部入射在光纤电缆上的地震波。当地震波入射时，光源将光信号发射到光纤电缆中。接收机检测响应于光信号产生的相干瑞利噪声（CRN）。处理电路处理检测到的CRN信号以确定地层的特征。

2. 发明申请

WO2011162868A3 PRECISION MEASUREMENTS IN A FIBER OPTIC DISTRIBUTED SENSOR SYSTEM 审中-公开
标题翻译：光纤分布式传感器系统的精度测量
公开(公告)号：WO2011162868A3
公开(公告)日：2012-02-16
申请号：PCT/US2011033844
申请日：2011-04-26
申请人： SCHLUMBERGER CA LTD , SCHLUMBERGER TECHNOLOGY CORP , SCHLUMBERGER SERVICES PETROL , SCHLUMBERGER HOLDINGS , SCHLUMBERGER TECHNOLOGY BV , PRAD RES & DEV LTD , BRADY DOMINIC , HARTOG ARTHUR H
发明人： BRADY DOMINIC , HARTOG ARTHUR H
IPC分类号： G01N21/41 , G01H9/00 , G01M11/00
CPC分类号： G01H9/004 , G01D5/35361 , G01V1/40
摘要： A fiber optic distributed vibration sensor provides a highly sensitive measurement of a measurand with a high degree of linearity. The distributed vibration sensor includes subsections configured to have a high sensitivity to a measurand of interest interspaced in an alternating manner with subsections having a low sensitivity to the measurand. The distributed vibration sensor is interrogated such that a phase difference between the backscattered signals generated in low sensitivity subsections surrounding a high sensitivity subsection can be determined. Characteristics of the measurand may then be determined based on the phase difference.
摘要翻译：光纤分布式振动传感器提供高度线性度的被测量的高灵敏度测量。分布式振动传感器包括被配置成对被感兴趣的被测量具有高灵敏度的子部分，以与被测量具有低灵敏度的子部分交替地间隔。询问分布式振动传感器，使得可以确定在高敏感度部分周围的低灵敏度部分中产生的反向散射信号之间的相位差。然后可以基于相位差来确定被测量的特性。

3. 发明申请

WO2011071572A3 NARROW LINEWIDTH BRILLOUIN LASER 审中-公开
标题翻译： NARROW LINEWIDTH BRILLOUIN激光
公开(公告)号：WO2011071572A3
公开(公告)日：2011-08-04
申请号：PCT/US2010047223
申请日：2010-08-31
申请人： SCHLUMBERGER CA LTD , SCHLUMBERGER SERVICES PETROL , SCHLUMBERGER HOLDINGS , SCHLUMBERGER TECHNOLOGY BV , PRAD RES & DEV LTD , SCHLUMBERGER TECHNOLOGY CORP , HARTOG ARTHUR H
发明人： HARTOG ARTHUR H
IPC分类号： H01S3/30 , H01S3/067 , H01S3/10
CPC分类号： H01S3/302 , G01D5/35335 , H01S3/06791 , H01S3/08031 , H01S3/094038 , H01S3/1392 , H01S3/1398
摘要： A Brillouin laser having a narrowed linewidth, reduced relative intensity noise, and increased output power includes a pump laser that provides pump energy to an optical fiber resonant cavity to stimulate Brillouin emission. The output of pump laser is stabilized and its linewidth is narrowed by locking the frequency and phase of the optical signal generated by the pump laser to a longitudinal mode of the optical fiber resonant cavity. In addition, the resonant cavity is temperature and/or strain-tuned so that the Brillouin gain is substantially centered on a longitudinal mode of the cavity, thereby ensuring that the Brillouin frequency shift is substantially equal to an integer number of the free spectral range of the cavity.
摘要翻译：具有窄线宽，降低的相对强度噪声和增加的输出功率的布里渊激光器包括向光纤谐振腔提供泵浦能量以刺激布里渊发射的泵激光器。通过将由泵浦激光器产生的光学信号的频率和相位锁定到光纤谐振腔的纵向模式，泵浦激光器的输出被稳定并且其线宽变窄。此外，谐振腔是温度和/或应变调谐的，使得布里渊增益基本上位于空腔的纵向模式的中心，从而确保布里渊频移基本上等于整数的自由光谱范围空腔。

4. 发明申请

WO2008040939A2 MEASURING BRILLOUIN BACKSCATTER FROM AN OPTICAL FIBRE USING A TRACKING SIGNAL 审中-公开
标题翻译：使用跟踪信号从光纤测量BRILLUIN背板
公开(公告)号：WO2008040939A2
公开(公告)日：2008-04-10
申请号：PCT/GB2007003585
申请日：2007-09-20
申请人： SCHLUMBERGER HOLDINGS , SCHLUMBERGER CA LTD , PRAD RES & DEV LTD , SCHLUMBERGER SERVICES PETROL , SCHLUMBERGER TECHNOLOGY BV , HARTOG ARTHUR H
发明人： HARTOG ARTHUR H
CPC分类号： G01M11/319 , G01D5/35364
摘要： A method for measuring Brillouin backscattering from an optical fibre, comprises frequency mixing a first signal with a frequency f ß (t) representative of the Brillouin frequency shift in backscattered light received from a deployed optical fibre with a second signal at a frequency fi(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 ?F(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：一种用于从光纤测量布里渊后向散射的方法，包括将表示从布置的光纤接收的后向散射光中的布里渊频移的频率f 1（t）频率混合第二信号，其中第二信号具有第二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的频率fi（t）的信号以产生具有与其情况相对应的情况下的具有标称常数值的差频率ΔF（t）的差分信号，所接收的光具有与之前测量的偏移相匹配的布里渊偏移。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。频率混合可以光学或电学进行。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。

5. 发明申请

WO2009006000A3 DISTRIBUTED SENSING IN AN OPTICAL FIBER USING BRILLOUIN SCATTERING 审中-公开
标题翻译：使用白光散射在光纤中进行分布式感测
公开(公告)号：WO2009006000A3
公开(公告)日：2010-01-14
申请号：PCT/US2008066871
申请日：2008-06-13
申请人： SCHLUMBERGER CA LTD , SCHLUMBERGER SERVICES PETROL , SCHLUMBERGER HOLDINGS , SCHLUMBERGER TECHNOLOGY BV , PRAD RES & DEV LTD , SCHLUMBERGER TECHNOLOGY CORP , BP EXPLORATION OPERATING , HARTOG ARTHUR H , LEES GARETH P
发明人： HARTOG ARTHUR H , LEES GARETH P
IPC分类号： G02B27/42
CPC分类号： G01J3/4412 , G01D5/35364 , G01K11/32
摘要： To perform distributed sensing with an optical fiber using Brillouin scattering, a light pulse is transmitted into the optical fiber, where the transmitted light pulse has a first frequency. Backscattered light and optical local oscillator light are combined, where the backscattered light is received from the optical fiber in response to the transmitted light pulse, and where the optical local oscillator light has a second frequency. A frequency offset is caused to be present between the first frequency of the transmitted light pulse and the second frequency of the optical local oscillator light, where the frequency offset is at least 1 GHz less than a Brillouin frequency shift of the backscattered light. Spectra representing Stokes and anti Stokes components of the backscattered light are acquired, where the Stokes and anti Stokes components are separated by a frequency span that is based on the frequency offset.
摘要翻译：为了使用布里渊散射使用光纤执行分布式感测，将光脉冲传输到光纤中，其中透射光脉冲具有第一频率。组合后向散射光和光学本地振荡器光，其中响应于透射的光脉冲从光纤接收反向散射光，并且其中光学本地振荡器光具有第二频率。使得频率偏移存在于透射光脉冲的第一频率和光学本地振荡器光的第二频率之间，其中频偏比背散射光的布里渊频移小至少1GHz。获取表示反向散射光的斯托克斯和反斯托克斯分量的光谱，其中斯托克斯和反斯托克斯分量由基于频率偏移的频率跨度分开。

6. 发明申请

WO2008020170A3 MEASURING BRILLOUIN BACKSCATTER FROM AN OPTICAL FIBRE USING DIGITISATION 审中-公开
标题翻译：使用数字测量从光纤测量BRILLUIN背板
公开(公告)号：WO2008020170A3
公开(公告)日：2008-04-03
申请号：PCT/GB2007002996
申请日：2007-08-07
申请人： SCHLUMBERGER HOLDINGS LIMIRED , SCHLUMBERGER CA LTD , PRAD RES & DEV LTD , SERVICES PETROLIERS SCHLUMBEGE , SCHLUMBERGER TECHNOLOGY BV , HARTOG ARTHUR H
发明人： HARTOG ARTHUR H
IPC分类号： G01D5/353
CPC分类号： G01D5/35364 , G01K2011/322 , G01M11/3109 , G01M11/3145
摘要： A method for measuring Brillouin backscattering from an optical fibre, comprising mixing backscattered light received from the optical fibre and having a Brillouin frequency fß(t) with coherent light at a frequency f i in an optical detector to produce an electrical signal with a difference frequency ?F(t) = fß(t) - fl5 and directly digitising the electrical signal using an analog-to-digital converter to generate a sequence of samples representing the electrical signal, the samples then being processed to determine one or more properties of the Brillouin spectral line. The difference frequency may be further reduced by an additional frequency mixing stage to allow digitisation at a lower sampling rate.
摘要翻译：一种用于从光纤测量布里渊后向散射的方法，包括将从所述光纤接收的反向散射光混合并且具有布里渊频率fβ（t），所述布里渊频率fβ（t）具有在光学检测器中的频率f 1处的相干光，以产生具有差分频率ω的电信号。 F（t）=fβ（t）-fl5，并且使用模数转换器直接对电信号进行数字化，以产生表示电信号的采样序列，随后处理样品以确定布里渊的一个或多个特性谱线。可以通过附加的频率混合级来进一步减小差分频率，以允许以更低采样率进行数字化。

7. 发明申请

WO2014190176A8 METHOD OF BOREHOLE SEISMIC SURVEYING USING AN OPTICAL FIBER 审中-公开
标题翻译：使用光纤的井眼地震测量方法
公开(公告)号：WO2014190176A8
公开(公告)日：2016-03-10
申请号：PCT/US2014039186
申请日：2014-05-22
申请人： SCHLUMBERGER CA LTD , SCHLUMBERGER SERVICES PETROL , SCHLUMBERGER HOLDINGS , SCHLUMBERGER TECHNOLOGY BV , PRAD RES & DEV LTD , SCHLUMBERGER TECHNOLOGY CORP
发明人： HARTOG ARTHUR H , FRIGNET BERNARD , MACKIE DUNCAN , CLARK MICHAEL
IPC分类号： E21B49/00 , G01V1/40 , G01V1/52
CPC分类号： G01V1/40 , G01H9/004 , G01V1/20 , G01V1/42 , G01V1/44 , G01V2210/1429
摘要： A method of detecting seismic waves traveling through a subsurface formation includes lowering a cable into a borehole in the subsurface formation, the cable having at least one optical fiber associated therewith, and causing descent of a remote end of the cable to be arrested. The method further includes feeding a further length of the cable into the borehole such that the cable is slack and in contact with at least part of a wall of the borehole, and using an interrogator coupled to the at least one optical fiber to detect seismic waves traveling through the subsurface formation and into the cable.
摘要翻译：检测通过地下地层运动的地震波的方法包括将电缆降低到地下地层中的钻孔中，所述缆线具有与其相关联的至少一根光纤，并且使电缆的远端下降。该方法还包括将电缆的另一长度馈送到钻孔中，使得电缆松弛并与钻孔的壁的至少一部分接触，并且使用耦合到至少一根光纤的询问器来检测地震波穿过地下地层并进入电缆。

8. 发明公开

EP2342533A4 TIME DOMAIN MULTIPLEXING OF INTERFEROMETRIC SENSORS 有权
标题翻译：时域复干涉仪传感器
公开(公告)号：EP2342533A4
公开(公告)日：2013-08-14
申请号：EP09819665
申请日：2009-09-30
申请人： SCHLUMBERGER SERVICES PETROL , SCHLUMBERGER HOLDINGS , SCHLUMBERGER TECHNOLOGY BV , PRAD RES & DEV LTD , SCHLUMBERGER TECHNOLOGY CORP
发明人： HARTOG ARTHUR H
IPC分类号： G01B9/02
CPC分类号： E21B47/123 , G01D5/35383 , G01K1/026 , G01K11/3206 , G01L1/246 , G01L11/025 , H04L67/12

9. 发明公开

EP2800985A4 OPTICAL FIBER WELL DEPLOYMENT FOR SEISMIC SURVEYING 审中-公开
标题翻译：纤维孔用于地震INVESTIGATIONS
公开(公告)号：EP2800985A4
公开(公告)日：2016-01-06
申请号：EP13733734
申请日：2013-01-04
申请人： SERVICES PÉTROLIERS SCHLUMBERGER , SCHLUMBERGER HOLDINGS , SCHLUMBERGER TECHNOLOGY BV , PRAD RES & DEV LTD , SCHLUMBERGER TECHNOLOGY CORP
发明人： VIGNEAUX PIERRE , HARTOG ARTHUR H , FRIGNET BERNARD
IPC分类号： G01V1/42 , G01H9/00 , G01V1/16 , G01V1/22
CPC分类号： G01V1/18 , G01H9/004 , G01V1/16 , G01V1/226 , G01V1/40 , G01V1/42

10. 发明公开

EP2583084A4 PRECISION MEASUREMENTS IN A FIBER OPTIC DISTRIBUTED SENSOR SYSTEM 有权
公开(公告)号：EP2583084A4
公开(公告)日：2017-10-25
申请号：EP11798549
申请日：2011-04-26
申请人： SCHLUMBERGER TECHNOLOGY CORP , SERVICES PÉTROLIERS SCHLUMBERGER , SCHLUMBERGER HOLDINGS , SCHLUMBERGER TECHNOLOGY BV , PRAD RES & DEV LTD
发明人： BRADY DOMINIC , HARTOG ARTHUR H
IPC分类号： G01D5/353 , G01H9/00 , G01V1/40
CPC分类号： G01H9/004 , G01D5/35361 , G01V1/40
摘要： A fiber optic distributed vibration sensor provides a highly sensitive measurement of a measurand with a high degree of linearity. The distributed vibration sensor includes subsections configured to have a high sensitivity to a measurand of interest interspaced in an alternating manner with subsections having a low sensitivity to the measurand. The distributed vibration sensor is interrogated such that a phase difference between the backscattered signals generated in low sensitivity subsections surrounding a high sensitivity subsection can be determined. Characteristics of the measurand may then be determined based on the phase difference.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式