GB201316362D0 - Non-isotropic acoustic cable - Google Patents

Non-isotropic acoustic cable

Info

Publication number
GB201316362D0
GB201316362D0 GB201316362A GB201316362A GB201316362D0 GB 201316362 D0 GB201316362 D0 GB 201316362D0 GB 201316362 A GB201316362 A GB 201316362A GB 201316362 A GB201316362 A GB 201316362A GB 201316362 D0 GB201316362 D0 GB 201316362D0
Authority
GB
United Kingdom
Prior art keywords
acoustic cable
isotropic acoustic
isotropic
cable
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.)
Granted
Application number
GB201316362A
Other versions
GB2518216B (en
GB2518216A (en
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
Priority to GB1316362.1A priority Critical patent/GB2518216B/en
Application filed by Silixa Ltd filed Critical Silixa Ltd
Priority to GB1717710.6A priority patent/GB2552761B/en
Priority to GB1717709.8A priority patent/GB2552760B/en
Publication of GB201316362D0 publication Critical patent/GB201316362D0/en
Priority to EP14762076.9A priority patent/EP3044554B1/en
Priority to US15/021,319 priority patent/US9823114B2/en
Priority to PCT/GB2014/052679 priority patent/WO2015036735A1/en
Publication of GB2518216A publication Critical patent/GB2518216A/en
Priority to US15/804,657 priority patent/US10345139B2/en
Application granted granted Critical
Publication of GB2518216B publication Critical patent/GB2518216B/en
Expired - Fee Related 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
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • 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
    • G01D5/3537—Optical fibre sensor using a particular arrangement of the optical fibre itself
    • G01D5/3538—Optical fibre sensor using a particular arrangement of the optical fibre itself using a particular type of fiber, e.g. fibre with several cores, PANDA fiber, fiber with an elliptic core or the like

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
GB1316362.1A 2013-09-13 2013-09-13 Non-isotropic fibre optic acoustic cable Expired - Fee Related GB2518216B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB1717710.6A GB2552761B (en) 2013-09-13 2013-09-13 Non-isotropic acoustic cable
GB1717709.8A GB2552760B (en) 2013-09-13 2013-09-13 Fibre optic cable having discrete acoustic coupling regions
GB1316362.1A GB2518216B (en) 2013-09-13 2013-09-13 Non-isotropic fibre optic acoustic cable
EP14762076.9A EP3044554B1 (en) 2013-09-13 2014-09-04 Fibre optic cable for a distributed acoustic sensing system
US15/021,319 US9823114B2 (en) 2013-09-13 2014-09-04 Non-isotropic acoustic cable
PCT/GB2014/052679 WO2015036735A1 (en) 2013-09-13 2014-09-04 Non-isotropic acoustic cable
US15/804,657 US10345139B2 (en) 2013-09-13 2017-11-06 Non-isotropic acoustic cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1316362.1A GB2518216B (en) 2013-09-13 2013-09-13 Non-isotropic fibre optic acoustic cable

Publications (3)

Publication Number Publication Date
GB201316362D0 true GB201316362D0 (en) 2013-10-30
GB2518216A GB2518216A (en) 2015-03-18
GB2518216B GB2518216B (en) 2018-01-03

Family

ID=49552654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1316362.1A Expired - Fee Related GB2518216B (en) 2013-09-13 2013-09-13 Non-isotropic fibre optic acoustic cable

Country Status (1)

Country Link
GB (1) GB2518216B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111757973A (en) * 2018-01-08 2020-10-09 沙特阿拉伯石油公司 Orientation sensitive fiber optic cable wellbore system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO345867B1 (en) * 2009-05-27 2021-09-20 Optasense Holdings Ltd Monitoring of cracks
GB0919902D0 (en) * 2009-11-13 2009-12-30 Qinetiq Ltd Improvements in fibre optic cables for distributed 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
GB201100636D0 (en) * 2011-01-14 2011-03-02 Qinetiq Ltd Fibre optic distributed sensing
CA2839212C (en) * 2011-06-20 2019-09-10 Shell Internationale Research Maatschappij B.V. Fiber optic cable with increased directional sensitivity
GB201219331D0 (en) * 2012-10-26 2012-12-12 Optasense Holdings Ltd Fibre optic cable for acoustic/seismic sensing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111757973A (en) * 2018-01-08 2020-10-09 沙特阿拉伯石油公司 Orientation sensitive fiber optic cable wellbore system

Also Published As

Publication number Publication date
GB2518216B (en) 2018-01-03
GB2518216A (en) 2015-03-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20220913