CA2320449A1 - Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors - Google Patents

Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors Download PDF

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Publication number
CA2320449A1
CA2320449A1 CA002320449A CA2320449A CA2320449A1 CA 2320449 A1 CA2320449 A1 CA 2320449A1 CA 002320449 A CA002320449 A CA 002320449A CA 2320449 A CA2320449 A CA 2320449A CA 2320449 A1 CA2320449 A1 CA 2320449A1
Authority
CA
Canada
Prior art keywords
light
hydrophone
subterranean
mandrels
sensing
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
CA002320449A
Other languages
French (fr)
Other versions
CA2320449C (en
Inventor
Donald A. Frederick
Michael J. Carter
Samuel Fersht
David C. Winslow
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.)
Northrop Grumman Guidance and Electronics Co Inc
Original Assignee
Litton Systems Inc
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 Litton Systems Inc filed Critical Litton Systems Inc
Publication of CA2320449A1 publication Critical patent/CA2320449A1/en
Application granted granted Critical
Publication of CA2320449C publication Critical patent/CA2320449C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
    • G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
    • G01V1/186—Hydrophones
    • 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
    • G01V1/40—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S367/00—Communications, electrical: acoustic wave systems and devices
    • Y10S367/911—Particular well-logging apparatus
    • Y10S367/912—Particular transducer

Abstract

A system for sensing subterranean acoustic waves emitted from an acoustic source includes a plurality of laser sources (LS1-LS6), a plurality of subterranean optical sensors (1000), at least one optical detector (D1-D16), and electronics (601). The laser sources each emit light at a different frequency. The subterranean optical sensors are hydrophones (1000) that receive the light and alter the light in response to the acoustic waves. The optical detector (DI-D16) receives the altered light and outputs an electrical signal. The electronics (601) receives the electrical signal and converts it into seismic data format. The hydrophones (1000) are able to operate at pressures of at least 5,000 psi and temperatures of at least 130 degrees Celsius. The hydrophone (1000) may be housed in a cable (1002) having a diameter of less than about 1.5 inches. The hydrophone's sensor preferably includes a reference mandrel (1110), two sensing mandrels (1120), and a telemetry can (1104), all of which are aligned in a coaxial, end-to-end configuration to reduce the profile of the hydrophone (1000). Flexible interlinks (1296) having grooves therein for receiving optical fiber join the mandrels (1110, 1120) together.
The reference mandrel (1110) and sensing mandrels (1120) advantageously have hemispherically-shaped endcaps (1264), permitting them to operate at high pressure.
CA002320449A 1999-10-29 2000-09-21 Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors Expired - Lifetime CA2320449C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/429,067 US6288975B1 (en) 1999-10-29 1999-10-29 Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors
US09/429,067 1999-10-29

Publications (2)

Publication Number Publication Date
CA2320449A1 true CA2320449A1 (en) 2001-04-29
CA2320449C CA2320449C (en) 2004-11-30

Family

ID=23701651

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002320449A Expired - Lifetime CA2320449C (en) 1999-10-29 2000-09-21 Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors

Country Status (5)

Country Link
US (1) US6288975B1 (en)
EP (1) EP1096271B1 (en)
CA (1) CA2320449C (en)
DE (1) DE60032709D1 (en)
NO (1) NO20005442L (en)

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US6865334B2 (en) 2003-06-28 2005-03-08 General Dynamics Advanced Information Systems, Inc. Termination assembly for use in optical fiber hydrophone array
US6870997B2 (en) 2003-06-28 2005-03-22 General Dynamics Advanced Information Systems, Inc. Fiber splice tray for use in optical fiber hydrophone array
US6879545B2 (en) * 2003-06-28 2005-04-12 General Dynamics Advanced Information Systems, Inc. Woven fiber protection cable assembly for use in optical fiber hydrophone array
US6904222B2 (en) 2003-06-28 2005-06-07 General Dynamics Advanced Information Systems, Inc. Optical fiber splice protection apparatus for use in optical fiber hydrophone array
US6934451B2 (en) 2003-06-28 2005-08-23 General Dynamics Advanced Information Systems, Inc. Mount for use in optical fiber hydrophone array
US7027695B2 (en) 2003-06-28 2006-04-11 General Dynamics Advanced Information Systems, Inc. Fiber transition segment for use in optical fiber hydrophone array

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US6724319B1 (en) 1999-10-29 2004-04-20 Litton Systems, Inc. Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors
US6728165B1 (en) 1999-10-29 2004-04-27 Litton Systems, Inc. Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors
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US6561278B2 (en) * 2001-02-20 2003-05-13 Henry L. Restarick Methods and apparatus for interconnecting well tool assemblies in continuous tubing strings
US20030154031A1 (en) * 2002-02-14 2003-08-14 General Electric Company Method and apparatus for the rapid evaluation of a plurality of materials or samples
US20030234921A1 (en) * 2002-06-21 2003-12-25 Tsutomu Yamate Method for measuring and calibrating measurements using optical fiber distributed sensor
US6937938B2 (en) * 2002-09-04 2005-08-30 Stanley A. Sansone Method and apparatus for interferometry, spectral analysis, and three-dimensional holographic imaging of hydrocarbon accumulations and buried objects
US20040100865A1 (en) * 2002-11-26 2004-05-27 Tenghamn Stig Rune Lennart Flexible offshore reservoir monitoring and seismic data acquisition
US7023213B2 (en) 2002-12-10 2006-04-04 Schlumberger Technology Corporation Subsurface conductivity imaging systems and methods
US7261162B2 (en) 2003-06-25 2007-08-28 Schlumberger Technology Corporation Subsea communications system
US7227814B2 (en) * 2005-03-04 2007-06-05 L-3 Communications Corporation Repairable fiber optic hydrophone assembly
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US10310094B2 (en) 2012-03-19 2019-06-04 Baker Hughes, A Ge Company, Llc Rig heave, tidal compensation and depth measurement using GPS
CN102607622A (en) * 2012-03-30 2012-07-25 苏州攀星光电科技有限公司 Multi-source interference sensing system
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US9720118B2 (en) * 2012-06-11 2017-08-01 Kobold Corporation Microseismic monitoring with fiber-optic noise mapping
US20140167972A1 (en) * 2012-12-13 2014-06-19 General Electric Company Acoustically-responsive optical data acquisition system for sensor data
US9007231B2 (en) 2013-01-17 2015-04-14 Baker Hughes Incorporated Synchronization of distributed measurements in a borehole
US20140219056A1 (en) * 2013-02-04 2014-08-07 Halliburton Energy Services, Inc. ("HESI") Fiberoptic systems and methods for acoustic telemetry
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US20150085610A1 (en) * 2013-09-25 2015-03-26 Baker Hughes Incorporated Fiber optic distributed acoustic measurements via fmcw interrogation
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GB2587161B (en) 2013-12-30 2021-06-09 Halliburton Energy Services Inc Position indicator through acoustics
GB2538865B (en) 2014-01-22 2020-12-16 Halliburton Energy Services Inc Remote tool position and tool status indication
US9784861B2 (en) * 2014-01-31 2017-10-10 Pgs Geophysical As Hydrophone
GB2547598B (en) 2014-12-31 2021-09-08 Halliburton Energy Services Inc Methods and systems employing fiber optic sensors for electromagnetic cross-well telemetry
BR112017014331A2 (en) * 2015-03-30 2018-03-06 Halliburton Energy Services Inc method, apparatus and system
CN106054241B (en) * 2016-06-12 2019-01-22 中国石油集团钻井工程技术研究院 Nonpetroleum measurement while drilling seismic detection device
CN106772561A (en) * 2017-01-06 2017-05-31 浙江大学 A kind of long-term real time probe of mobile ocean earthquake
JP6947125B2 (en) * 2018-06-05 2021-10-13 日本電信電話株式会社 Fiber optic pathfinding methods, fiber optic pathfinding systems, signal processing equipment and programs
CN108931816B (en) * 2018-08-17 2020-01-21 山东省科学院激光研究所 Seismic source positioning method and device
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US11656375B2 (en) * 2019-12-09 2023-05-23 Magseis Ff Llc Measuring hydrophone channel impedance using a test signal generator coupled in series
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6865334B2 (en) 2003-06-28 2005-03-08 General Dynamics Advanced Information Systems, Inc. Termination assembly for use in optical fiber hydrophone array
US6870997B2 (en) 2003-06-28 2005-03-22 General Dynamics Advanced Information Systems, Inc. Fiber splice tray for use in optical fiber hydrophone array
US6879545B2 (en) * 2003-06-28 2005-04-12 General Dynamics Advanced Information Systems, Inc. Woven fiber protection cable assembly for use in optical fiber hydrophone array
US6904222B2 (en) 2003-06-28 2005-06-07 General Dynamics Advanced Information Systems, Inc. Optical fiber splice protection apparatus for use in optical fiber hydrophone array
US6931182B2 (en) 2003-06-28 2005-08-16 General Dynamics Advanced Information Systems, Inc. Bypass cable assembly for use in optical fiber hydrophone array
US6934451B2 (en) 2003-06-28 2005-08-23 General Dynamics Advanced Information Systems, Inc. Mount for use in optical fiber hydrophone array
US7027695B2 (en) 2003-06-28 2006-04-11 General Dynamics Advanced Information Systems, Inc. Fiber transition segment for use in optical fiber hydrophone array

Also Published As

Publication number Publication date
EP1096271A3 (en) 2003-08-06
NO20005442L (en) 2001-04-30
DE60032709D1 (en) 2007-02-15
NO20005442D0 (en) 2000-10-27
EP1096271B1 (en) 2007-01-03
US6288975B1 (en) 2001-09-11
CA2320449C (en) 2004-11-30
EP1096271A2 (en) 2001-05-02

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Effective date: 20200921