GB2552760B - Fibre optic cable having discrete acoustic coupling regions - Google Patents

Fibre optic cable having discrete acoustic coupling regions

Info

Publication number
GB2552760B
GB2552760B GB1717709.8A GB201717709A GB2552760B GB 2552760 B GB2552760 B GB 2552760B GB 201717709 A GB201717709 A GB 201717709A GB 2552760 B GB2552760 B GB 2552760B
Authority
GB
United Kingdom
Prior art keywords
optic cable
fibre optic
acoustic coupling
coupling regions
discrete acoustic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
GB1717709.8A
Other versions
GB201717709D0 (en
GB2552760A (en
Inventor
Finfer Daniel
Strusevich Dimitry
Shatalin Sergey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Silixa Ltd
Original Assignee
Silixa Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Silixa Ltd filed Critical Silixa Ltd
Priority to GB1717709.8A priority Critical patent/GB2552760B/en
Priority claimed from GB1316362.1A external-priority patent/GB2518216B/en
Publication of GB201717709D0 publication Critical patent/GB201717709D0/en
Publication of GB2552760A publication Critical patent/GB2552760A/en
Application granted granted Critical
Publication of GB2552760B publication Critical patent/GB2552760B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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
    • G01D5/35338—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 other arrangements than interferometer arrangements
    • G01D5/35354—Sensor working in reflection
    • G01D5/35358—Sensor working in reflection using backscattering to detect the measured quantity
GB1717709.8A 2013-09-13 2013-09-13 Fibre optic cable having discrete acoustic coupling regions Active GB2552760B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1717709.8A GB2552760B (en) 2013-09-13 2013-09-13 Fibre optic cable having discrete acoustic coupling regions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1316362.1A GB2518216B (en) 2013-09-13 2013-09-13 Non-isotropic fibre optic acoustic cable
GB1717709.8A GB2552760B (en) 2013-09-13 2013-09-13 Fibre optic cable having discrete acoustic coupling regions

Publications (3)

Publication Number Publication Date
GB201717709D0 GB201717709D0 (en) 2017-12-13
GB2552760A GB2552760A (en) 2018-02-07
GB2552760B true GB2552760B (en) 2018-05-16

Family

ID=60580127

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1717709.8A Active GB2552760B (en) 2013-09-13 2013-09-13 Fibre optic cable having discrete acoustic coupling regions

Country Status (1)

Country Link
GB (1) GB2552760B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010139934A1 (en) * 2009-06-02 2010-12-09 Fotech Solutions Limited Optical fibre cable for distributed fibre sensing
WO2011058314A1 (en) * 2009-11-13 2011-05-19 Qinetiq Limited Optic fibres and fibre optic sensing
WO2011079098A2 (en) * 2009-12-23 2011-06-30 Shell Oil Company Detecting broadside and directional acoustic signals with a fiber optical distributed acoustic sensing (das) assembly
WO2012095640A2 (en) * 2011-01-14 2012-07-19 Optasense Holdings Limited Fibre optic distributed sensing
WO2012177547A1 (en) * 2011-06-20 2012-12-27 Shell Oil Company Fiber optic cable with increased directional sensitivity
WO2013098321A2 (en) * 2011-12-30 2013-07-04 Shell Internationale Research Maatschappij B.V. Smart hydrocarbon fluid production method and system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010139934A1 (en) * 2009-06-02 2010-12-09 Fotech Solutions Limited Optical fibre cable for distributed fibre sensing
WO2011058314A1 (en) * 2009-11-13 2011-05-19 Qinetiq Limited Optic fibres and fibre optic sensing
WO2011079098A2 (en) * 2009-12-23 2011-06-30 Shell Oil Company Detecting broadside and directional acoustic signals with a fiber optical distributed acoustic sensing (das) assembly
WO2012095640A2 (en) * 2011-01-14 2012-07-19 Optasense Holdings Limited Fibre optic distributed sensing
WO2012177547A1 (en) * 2011-06-20 2012-12-27 Shell Oil Company Fiber optic cable with increased directional sensitivity
WO2013098321A2 (en) * 2011-12-30 2013-07-04 Shell Internationale Research Maatschappij B.V. Smart hydrocarbon fluid production method and system

Also Published As

Publication number Publication date
GB201717709D0 (en) 2017-12-13
GB2552760A (en) 2018-02-07

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