CA2358135A1 - Distributed selectable latent fiber optic sensors - Google Patents

Distributed selectable latent fiber optic sensors Download PDF

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Publication number
CA2358135A1
CA2358135A1 CA002358135A CA2358135A CA2358135A1 CA 2358135 A1 CA2358135 A1 CA 2358135A1 CA 002358135 A CA002358135 A CA 002358135A CA 2358135 A CA2358135 A CA 2358135A CA 2358135 A1 CA2358135 A1 CA 2358135A1
Authority
CA
Canada
Prior art keywords
sensors
fiber optic
parameters
signal
converter
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
CA002358135A
Other languages
French (fr)
Other versions
CA2358135C (en
Inventor
F. Kevin Didden
Arthur D. Hay
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.)
Weatherford Technology Holdings LLC
Original Assignee
Cidra Corporation
F. Kevin Didden
Arthur D. Hay
Weatherford/Lamb, Inc.
Weatherford Technology Holdings, Llc
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 Cidra Corporation, F. Kevin Didden, Arthur D. Hay, Weatherford/Lamb, Inc., Weatherford Technology Holdings, Llc filed Critical Cidra Corporation
Publication of CA2358135A1 publication Critical patent/CA2358135A1/en
Application granted granted Critical
Publication of CA2358135C publication Critical patent/CA2358135C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G01D5/35383—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 multiple sensor devices using multiplexing techniques
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
    • E21B47/135—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency using light waves, e.g. infrared or ultraviolet waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measuring Fluid Pressure (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

Distributed selectable latent fiber optic sensors include a plurality of fiber grating sensors 12 connected to an optical fiber 10 and installed in an oil/gas well 15 and an instrumentation box 20 at the surface which selects which of the sensors 12 to activate, or provide output data from to a display 26 or to a remote link 32, suchas the internet. The box 20 has a transceiver/converter 22 which provides a source optical signal 14 and receives a return optical signal 16,18 and which converts the return signal 16,18 to a signal indicative of the parameters being measured by the sensors 12.
A sensor selection signal is provided from the remote link 32, the keyboard 28 to the converter 22 which is indicative of which of the sensors 12 to be selected to provide output data for. The end user only pays for the sensors 12 that are selected.
Each of the sensors 12 may be similar to any fiber optic grating-based sensor that measures one or more parameters, such as pressure, temperature, liquid fraction, flow, acoustic, seismic, resistivity, corrosion, pipe wall build-up, or other parameters.
CA002358135A 1998-12-23 1999-12-21 Distributed selectable latent fiber optic sensors Expired - Fee Related CA2358135C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/219,908 US6271766B1 (en) 1998-12-23 1998-12-23 Distributed selectable latent fiber optic sensors
US09/219,908 1998-12-23
PCT/US1999/030725 WO2000039532A1 (en) 1998-12-23 1999-12-21 Distributed selectable latent fiber optic sensors

Publications (2)

Publication Number Publication Date
CA2358135A1 true CA2358135A1 (en) 2000-07-06
CA2358135C CA2358135C (en) 2007-10-23

Family

ID=22821234

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002358135A Expired - Fee Related CA2358135C (en) 1998-12-23 1999-12-21 Distributed selectable latent fiber optic sensors

Country Status (5)

Country Link
US (1) US6271766B1 (en)
AU (1) AU2058600A (en)
CA (1) CA2358135C (en)
GB (1) GB2362250B (en)
WO (1) WO2000039532A1 (en)

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Also Published As

Publication number Publication date
GB0117914D0 (en) 2001-09-12
AU2058600A (en) 2000-07-31
GB2362250A (en) 2001-11-14
GB2362250B (en) 2003-07-23
US6271766B1 (en) 2001-08-07
WO2000039532A1 (en) 2000-07-06
CA2358135C (en) 2007-10-23

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Effective date: 20191223