IN2012DN03047A - - Google Patents
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- Publication number
- IN2012DN03047A IN2012DN03047A IN3047DEN2012A IN2012DN03047A IN 2012DN03047 A IN2012DN03047 A IN 2012DN03047A IN 3047DEN2012 A IN3047DEN2012 A IN 3047DEN2012A IN 2012DN03047 A IN2012DN03047 A IN 2012DN03047A
- Authority
- IN
- India
- Prior art keywords
- signal
- measured
- change
- derivative
- rate
- Prior art date
Links
- 239000000835 fiber Substances 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35303—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using a reference fibre, e.g. interferometric devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0917150.5A GB0917150D0 (en) | 2009-09-30 | 2009-09-30 | Phase based sensing |
PCT/GB2010/001802 WO2011039501A2 (fr) | 2009-09-30 | 2010-09-24 | Détection basée sur une phase |
Publications (1)
Publication Number | Publication Date |
---|---|
IN2012DN03047A true IN2012DN03047A (fr) | 2015-07-31 |
Family
ID=41350608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN3047DEN2012 IN2012DN03047A (fr) | 2009-09-30 | 2010-09-24 |
Country Status (11)
Country | Link |
---|---|
US (1) | US8537345B2 (fr) |
EP (1) | EP2483639B1 (fr) |
JP (1) | JP5469749B2 (fr) |
CN (1) | CN102612639B (fr) |
BR (1) | BR112012007192B1 (fr) |
CA (1) | CA2775845C (fr) |
GB (1) | GB0917150D0 (fr) |
IN (1) | IN2012DN03047A (fr) |
MX (1) | MX2012003815A (fr) |
RU (1) | RU2556748C2 (fr) |
WO (1) | WO2011039501A2 (fr) |
Families Citing this family (36)
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GB0810977D0 (en) * | 2008-06-16 | 2008-07-23 | Qinetiq Ltd | Phase based sensing |
US20110290477A1 (en) | 2008-12-31 | 2011-12-01 | Jaeaeskelaeinen Kari-Mikko | Method for monitoring deformation of well equipment |
GB2479101B (en) | 2009-02-09 | 2013-01-23 | Shell Int Research | Method of detecting fluid in-flows downhole |
GB2478690B (en) | 2009-02-09 | 2013-11-06 | Shell Int Research | Areal monitoring using distributed acoustic sensing |
BR112012014349A2 (pt) | 2009-12-23 | 2016-08-23 | Shell Int Research | conjunto de fibra óptica de sensoreamento acústico distribuído, e, método de sensoreamento acústico distribuído direcionalmente sensível |
US9109944B2 (en) | 2009-12-23 | 2015-08-18 | Shell Oil Company | Method and system for enhancing the spatial resolution of a fiber optical distributed acoustic sensing assembly |
WO2011163286A1 (fr) | 2010-06-25 | 2011-12-29 | Shell Oil Company | Empilement de signaux en détection acoustique distribuée par fibre optique |
CA2809660C (fr) | 2010-09-01 | 2016-11-15 | Schlumberger Canada Limited | Systeme capteur a fibre optique reparti dote d'une meilleure linearite |
EP2656112A2 (fr) | 2010-12-21 | 2013-10-30 | Shell Internationale Research Maatschappij B.V. | Détection de la direction de signaux acoustiques à l'aide d'un ensemble de détection acoustique répartie (das) à fibres optiques |
CA2821583C (fr) | 2010-12-21 | 2019-09-24 | Shell Internationale Research Maatschappij B.V. | Systeme et procede pour realiser des mesures reparties a l'aide d'un cable de fibre optique |
BR112013022777B1 (pt) | 2011-03-09 | 2021-04-20 | Shell Internationale Research Maatschappij B. V | cabo integrado de fibras ópticas, sistema de monitoramento por fibra óptica para um local de poço, e, método para monitorar um local de poço |
GB2489749B (en) | 2011-04-08 | 2016-01-20 | Optasense Holdings Ltd | Fibre optic distributed sensing |
AU2012257724B2 (en) | 2011-05-18 | 2015-06-18 | Shell Internationale Research Maatschappij B.V. | Method and system for protecting a conduit in an annular space around a well casing |
CA2838840C (fr) | 2011-06-13 | 2020-05-12 | Shell Internationale Research Maatschappij B.V. | Surveillance de fracture hydraulique a l'aide de sources sismiques actives avec des recepteurs dans le puits de traitement |
GB2504446B (en) | 2011-06-20 | 2017-08-30 | Shell Int Res Maatschhappij B V | Fibre optic cable with increased directional sensitivity |
GB201112161D0 (en) * | 2011-07-15 | 2011-08-31 | Qinetiq Ltd | Portal monitoring |
GB2506794B (en) | 2011-08-09 | 2016-08-17 | Shell Int Research | Method and apparatus for measuring seismic parameters of a seismic vibrator |
CN103988089B (zh) | 2011-12-15 | 2017-12-05 | 国际壳牌研究有限公司 | 用光纤分布式声感测(das)组合检测横向声信号 |
US10088353B2 (en) | 2012-08-01 | 2018-10-02 | Shell Oil Company | Cable comprising twisted sinusoid for use in distributed sensing |
NO347403B1 (en) * | 2013-06-13 | 2023-10-16 | Schlumberger Technology Bv | Fiber optic distributed vibration sensing with wavenumber sensitivity correction |
EP3080392A4 (fr) | 2014-03-24 | 2017-08-23 | Halliburton Energy Services, Inc. | Outils de puits ayant une télémétrie vibratoire vers une ligne optique à l'intérieur de ces derniers |
WO2015168538A1 (fr) * | 2014-05-02 | 2015-11-05 | Halliburton Energy Services, Inc. | Atténuation de l'effet de longueur de référence d'une détection acoustique répartie |
JP6342019B2 (ja) * | 2015-01-21 | 2018-06-13 | ニューブレクス株式会社 | 分布型光ファイバ音波検出装置 |
WO2017087792A1 (fr) * | 2015-11-20 | 2017-05-26 | Sentek Instrument, Llc | Procédé et appareil de détection répartie |
US10359302B2 (en) | 2015-12-18 | 2019-07-23 | Schlumberger Technology Corporation | Non-linear interactions with backscattered light |
GB201611326D0 (en) * | 2016-06-29 | 2016-08-10 | Optasense Holdings Ltd | Distributed fibre optic sensing for rail monitoring |
WO2018067135A1 (fr) | 2016-10-05 | 2018-04-12 | Halliburton Energy Services, Inc. | Systèmes et procédés de détection distribuée avec corrélation spatiale d'emplacement |
US11237025B2 (en) * | 2017-07-26 | 2022-02-01 | Terra15 Pty Ltd | Distributed optical sensing systems and methods |
KR102404377B1 (ko) * | 2017-10-27 | 2022-05-31 | 주식회사 케이티 | 광 펄스를 이용한 인프라 모니터링 시스템 및 방법 |
CN110553674B (zh) * | 2018-05-30 | 2021-05-18 | 华为技术有限公司 | 一种测量方法及测量装置 |
CA3104086C (fr) * | 2018-08-08 | 2023-08-01 | Aselsan Elektronik Sanayi Ve Ticaret Anonim Sirketi | Systeme de detection acoustique distribue base sur la reflectometrie optique dans le domaine temporel sensible a la phase sans rapport d'extinction |
US11378443B2 (en) * | 2019-05-22 | 2022-07-05 | Nec Corporation | Performance of Rayleigh-based phase-OTDR with correlation-based diversity combining and bias removal |
US11320304B2 (en) * | 2019-05-22 | 2022-05-03 | Nec Corporation | Multi-frequency coherent distributed acoustic sensing (DAS) with single transmitter / receiver pair using offset Tx / Rx frequency framing scheme |
FR3104730B1 (fr) * | 2019-12-12 | 2021-12-24 | Thales Sa | Dispositif de mesure de signaux delivres par un reseau de capteurs a base de cavites laser a fibre optique |
US20210318162A1 (en) * | 2020-04-08 | 2021-10-14 | Nec Laboratories America, Inc | Two stage processing distributed fiber optic sensing (dfos) interrogator for acoustic modulated signals |
IT202200004667A1 (it) | 2022-03-11 | 2022-06-11 | Sestosensor S R L | Rivelatore di fase e polarizzazione per sensori acustici distribuiti a fibre ottiche ed interrogatore basato sullo stesso |
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GB0705240D0 (en) * | 2007-03-14 | 2007-04-25 | Qinetiq Ltd | Phase based sensing |
GB0810977D0 (en) | 2008-06-16 | 2008-07-23 | Qinetiq Ltd | Phase based sensing |
GB0815523D0 (en) | 2008-08-27 | 2008-10-01 | Qinetiq Ltd | Phase based sensing |
-
2009
- 2009-09-30 GB GBGB0917150.5A patent/GB0917150D0/en not_active Ceased
-
2010
- 2010-09-24 MX MX2012003815A patent/MX2012003815A/es active IP Right Grant
- 2010-09-24 EP EP10763396.8A patent/EP2483639B1/fr active Active
- 2010-09-24 CA CA2775845A patent/CA2775845C/fr active Active
- 2010-09-24 WO PCT/GB2010/001802 patent/WO2011039501A2/fr active Application Filing
- 2010-09-24 BR BR112012007192-0A patent/BR112012007192B1/pt active IP Right Grant
- 2010-09-24 CN CN201080044182.2A patent/CN102612639B/zh not_active Expired - Fee Related
- 2010-09-24 US US13/499,076 patent/US8537345B2/en active Active
- 2010-09-24 RU RU2012117750/28A patent/RU2556748C2/ru not_active IP Right Cessation
- 2010-09-24 IN IN3047DEN2012 patent/IN2012DN03047A/en unknown
- 2010-09-24 JP JP2012531489A patent/JP5469749B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
US20120188533A1 (en) | 2012-07-26 |
JP5469749B2 (ja) | 2014-04-16 |
BR112012007192B1 (pt) | 2021-06-22 |
CN102612639B (zh) | 2014-10-08 |
CA2775845C (fr) | 2017-11-14 |
BR112012007192A2 (pt) | 2016-03-29 |
JP2013506828A (ja) | 2013-02-28 |
MX2012003815A (es) | 2012-06-19 |
US8537345B2 (en) | 2013-09-17 |
CN102612639A (zh) | 2012-07-25 |
RU2012117750A (ru) | 2013-11-20 |
RU2556748C2 (ru) | 2015-07-20 |
WO2011039501A3 (fr) | 2012-02-16 |
WO2011039501A2 (fr) | 2011-04-07 |
GB0917150D0 (en) | 2009-11-11 |
CA2775845A1 (fr) | 2011-04-07 |
EP2483639B1 (fr) | 2020-03-04 |
EP2483639A2 (fr) | 2012-08-08 |
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