SG11202000451WA - Method and system for distributed acoustic sensing in a marine environment - Google Patents

Method and system for distributed acoustic sensing in a marine environment

Info

Publication number
SG11202000451WA
SG11202000451WA SG11202000451WA SG11202000451WA SG11202000451WA SG 11202000451W A SG11202000451W A SG 11202000451WA SG 11202000451W A SG11202000451W A SG 11202000451WA SG 11202000451W A SG11202000451W A SG 11202000451WA SG 11202000451W A SG11202000451W A SG 11202000451WA
Authority
SG
Singapore
Prior art keywords
international
marine environment
distributed acoustic
acoustic sensing
sensing
Prior art date
Application number
SG11202000451WA
Inventor
Mark Andrew Englund
Original Assignee
Mark Andrew Englund
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 claimed from AU2017902820A external-priority patent/AU2017902820A0/en
Application filed by Mark Andrew Englund filed Critical Mark Andrew Englund
Publication of SG11202000451WA publication Critical patent/SG11202000451WA/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/22—Transmitting seismic signals to recording or processing apparatus
    • G01V1/226—Optoseismic systems
    • 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
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
    • G01V8/24—Detecting, e.g. by using light barriers using multiple transmitters or receivers using optical fibres

Abstract

International Patent Classification: GO1H 9/00 (2006.01) 601V 8/24 (2006.01) (21) International Application Number: PCT/AU2018/050757 (22) International Filing Date: (25) Filing Language: (26) Publication Language: (30) Priority Data: 2017902820 18 July 2017 (18.07.2017) (72) Inventor; and (71) Applicant: ENGLUND, Mark Andrew [AU/AU]; 18 July 2018 (18.07.2018) English English AU 1a/1110 Middle Head Road, Mosman, New South Wales 2088 (AU). (74) Agent: FPA PATENT ATTORNEYS PTY LTD; ANZ Tower, 161 Castlereagh Street, Sydney, New South Wales 2000 (AU). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, (54) Title: METHOD AND SYSTEM FOR DISTRIBUTED ACOUSTIC SENSING IN A MARINE ENVIRONMENT 1 10 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) vitivio VIII oviolo 010 lID VIII OH Hu oimIE (19) World Intellectual Property Organization International Bureau (10) International Publication Number WO 2019/014721 Al (43) International Publication Date 24 January 2019 (24.01.2019) WIP0 I PCT Fig. 1 100 104 102 110 1 10EiC 2 5 114 106A no 106E 114 205 114 205 1 reseassaaressaares4 300krn Sensing Array Network W O 20 19/0 147 21 Al (57) : The present invention relates to a system for distributed acoustic sensing in a marine environment surrounding a repeater along a fibre-optic submarine communications cable. The system comprises at least one distributed acoustic sensing (DAS) unit. Each DAS unit further comprises a light source that is configured to transmit outgoing light in at least one fibre-optic sensing cable that is located in the marine environment and a receiver configured to receive reflected light that includes at least one optical property influ- enced by an acoustic disturbance in the marine environment. Each DAS unit further comprises an optical multiplexer for multiplexing optical signals onto the fibre-optic submarine communications cable via the repeater where the optical signals carry information on the at least influenced optical property. A method for distributed acoustic sensing in the marine environment is also disclosed. [Continued on next page] WO 2019/014721 Al IIMEDIMOMIDEIIMMEIONIMOIDEMillin#011 UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))
SG11202000451WA 2017-07-18 2018-07-18 Method and system for distributed acoustic sensing in a marine environment SG11202000451WA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2017902820A AU2017902820A0 (en) 2017-07-18 Method and system for distributed acoustic sensing in a marine environment
PCT/AU2018/050757 WO2019014721A1 (en) 2017-07-18 2018-07-18 Method and system for distributed acoustic sensing in a marine environment

Publications (1)

Publication Number Publication Date
SG11202000451WA true SG11202000451WA (en) 2020-02-27

Family

ID=65014863

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11202000451WA SG11202000451WA (en) 2017-07-18 2018-07-18 Method and system for distributed acoustic sensing in a marine environment

Country Status (7)

Country Link
US (1) US11874417B2 (en)
EP (1) EP3655735B1 (en)
JP (2) JP7235719B2 (en)
AU (1) AU2018303340A1 (en)
CA (1) CA3070086A1 (en)
SG (1) SG11202000451WA (en)
WO (1) WO2019014721A1 (en)

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Also Published As

Publication number Publication date
AU2018303340A1 (en) 2020-03-05
EP3655735C0 (en) 2023-11-01
EP3655735B1 (en) 2023-11-01
CA3070086A1 (en) 2019-01-24
JP2023078151A (en) 2023-06-06
US20200209417A1 (en) 2020-07-02
US11874417B2 (en) 2024-01-16
WO2019014721A1 (en) 2019-01-24
EP3655735A4 (en) 2021-04-21
JP7409625B2 (en) 2024-01-09
JP7235719B2 (en) 2023-03-08
JP2020527236A (en) 2020-09-03
EP3655735A1 (en) 2020-05-27

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