BR0312213A - Amplificador de fibra ótica para aplicações de campo de petróleo - Google Patents
Amplificador de fibra ótica para aplicações de campo de petróleoInfo
- Publication number
- BR0312213A BR0312213A BR0312213-1A BR0312213A BR0312213A BR 0312213 A BR0312213 A BR 0312213A BR 0312213 A BR0312213 A BR 0312213A BR 0312213 A BR0312213 A BR 0312213A
- Authority
- BR
- Brazil
- Prior art keywords
- optical
- fiber
- optical fiber
- fiber optic
- oil field
- Prior art date
Links
- 239000000835 fiber Substances 0.000 title abstract 5
- 230000003287 optical effect Effects 0.000 abstract 8
- 239000013307 optical fiber Substances 0.000 abstract 8
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
- G01D5/268—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 using optical fibres
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
-
- 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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06754—Fibre amplifiers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
- H01S3/094019—Side pumped fibre, whereby pump light is coupled laterally into the fibre via an optical component like a prism, or a grating, or via V-groove coupling
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Lasers (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Optical Communication System (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
"AMPLIFICADOR DE FIBRA óTICA PARA APLICAçõES DE CAMPO DE PETRóLEO". Um sistema para a transmissão de sinais óticos durante operações de campo de petróleo submarino que compreende uma portadora de sinal de fibra ótica submarino, é descrito. A portadora de sinal de fibra ótica inclui uma primeira fibra ótica que tem pelo menos uma seção revestida, que atua como um amplificador para sinais óticos passando através dali, quando a seção revestida for suprida com energia ótica. Uma segunda fibra ótica é disposta ao longo da lateral da primeira fibra ótica para portar energia ótica. Um acoplador de fibra ótica entre a segunda fibra ótica e pelo menos uma seção revestida supre energia ótica da segunda fibra ótica para a primeira fibra ótica. Pelo menos um sensor provê sinais óticos para a primeira fibra ótica. Uma fonte de energia ótica supre energia ótica para a segunda fibra ótica.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US39269702P | 2002-06-27 | 2002-06-27 | |
PCT/US2003/020516 WO2004003342A2 (en) | 2002-06-27 | 2003-06-25 | Fiber optic amplifier for oilfield applications |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0312213A true BR0312213A (pt) | 2005-04-12 |
Family
ID=30000921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0312213-1A BR0312213A (pt) | 2002-06-27 | 2003-06-25 | Amplificador de fibra ótica para aplicações de campo de petróleo |
Country Status (6)
Country | Link |
---|---|
US (1) | US6995899B2 (pt) |
AU (1) | AU2003279893B2 (pt) |
BR (1) | BR0312213A (pt) |
GB (1) | GB2405759B (pt) |
NO (1) | NO20045690L (pt) |
WO (1) | WO2004003342A2 (pt) |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2412041A1 (en) * | 2000-06-29 | 2002-07-25 | Paulo S. Tubel | Method and system for monitoring smart structures utilizing distributed optical sensors |
US7529020B2 (en) * | 2002-11-19 | 2009-05-05 | Huawei Marine Networks Co., Ltd. | Optical amplifier module housed in a universal cable joint for an undersea optical transmission system |
US7186033B2 (en) * | 2005-02-23 | 2007-03-06 | Schlumberger Technology Corporation | Fiber optic booster connector |
GB2429126A (en) * | 2005-08-09 | 2007-02-14 | Vetco Gray Controls Ltd | Fibre optic umbilical for underwater well with electrically powered optical repeater |
US20070053629A1 (en) * | 2005-09-02 | 2007-03-08 | Schlumberger Technology Corporation | Providing a Subsea Optical Junction Assembly for Coupling Fiber Optic Cables |
US8104338B2 (en) * | 2006-02-21 | 2012-01-31 | Baker Hughes Incorporated | Method and apparatus for ion-selective discrimination of fluids downhole |
US7373813B2 (en) * | 2006-02-21 | 2008-05-20 | Baker Hughes Incorporated | Method and apparatus for ion-selective discrimination of fluids downhole |
US7610960B2 (en) * | 2007-04-25 | 2009-11-03 | Baker Hughes Incorporated | Depth correlation device for fiber optic line |
EP2039878B1 (en) * | 2007-09-20 | 2010-08-11 | PRAD Research and Development N.V. | Subsea lateral drilling |
US8379207B2 (en) * | 2008-10-15 | 2013-02-19 | Baker Hughes Incorporated | Method and apparatus for estimating a fluid property |
US20110088462A1 (en) * | 2009-10-21 | 2011-04-21 | Halliburton Energy Services, Inc. | Downhole monitoring with distributed acoustic/vibration, strain and/or density sensing |
US20110090496A1 (en) * | 2009-10-21 | 2011-04-21 | Halliburton Energy Services, Inc. | Downhole monitoring with distributed optical density, temperature and/or strain sensing |
US9388686B2 (en) * | 2010-01-13 | 2016-07-12 | Halliburton Energy Services, Inc. | Maximizing hydrocarbon production while controlling phase behavior or precipitation of reservoir impairing liquids or solids |
EP2392917A1 (en) * | 2010-02-19 | 2011-12-07 | Services Pétroliers Schlumberger | Optically stimulated luminescence radiation measurement device |
US8505625B2 (en) | 2010-06-16 | 2013-08-13 | Halliburton Energy Services, Inc. | Controlling well operations based on monitored parameters of cement health |
US8930143B2 (en) | 2010-07-14 | 2015-01-06 | Halliburton Energy Services, Inc. | Resolution enhancement for subterranean well distributed optical measurements |
US8584519B2 (en) | 2010-07-19 | 2013-11-19 | Halliburton Energy Services, Inc. | Communication through an enclosure of a line |
US20120121224A1 (en) * | 2010-11-12 | 2012-05-17 | Dalrymple Larry V | Cable integrating fiber optics to power and control an electrical submersible pump assembly and related methods |
US8638444B2 (en) | 2011-01-11 | 2014-01-28 | Baker Hughes Incorporated | Sensor array configuration for swept-wavelength interferometric-based sensing systems |
US8592747B2 (en) | 2011-01-19 | 2013-11-26 | Baker Hughes Incorporated | Programmable filters for improving data fidelity in swept-wavelength interferometry-based systems |
US8893785B2 (en) | 2012-06-12 | 2014-11-25 | Halliburton Energy Services, Inc. | Location of downhole lines |
US9823373B2 (en) | 2012-11-08 | 2017-11-21 | Halliburton Energy Services, Inc. | Acoustic telemetry with distributed acoustic sensing system |
US9523787B2 (en) | 2013-03-19 | 2016-12-20 | Halliburton Energy Services, Inc. | Remote pumped dual core optical fiber system for use in subterranean wells |
US9651435B2 (en) | 2013-03-19 | 2017-05-16 | Halliburton Energy Services, Inc. | Distributed strain and temperature sensing system |
GB2531602A (en) * | 2014-10-24 | 2016-04-27 | Ge Oil & Gas Uk Ltd | Optical amplifier for subsea control systems |
GB2545380B (en) * | 2014-11-25 | 2021-01-13 | Halliburton Energy Services Inc | Smart subsea pipeline |
GB2545610B (en) | 2014-11-25 | 2021-02-10 | Halliburton Energy Services Inc | Smart subsea pipeline |
WO2016085478A1 (en) | 2014-11-25 | 2016-06-02 | Halliburton Energy Services, Inc. | Smart subsea pipeline with conduits |
BR112017007242A2 (pt) | 2014-11-25 | 2018-01-16 | Halliburton Energy Services Inc | transportes tubulares, e, conjuntos. |
US10197212B2 (en) * | 2014-11-25 | 2019-02-05 | Halliburton Energy Services, Inc. | Smart subsea pipeline |
CA2979031C (en) | 2015-04-13 | 2021-04-13 | Halliburton Energy Services, Inc. | Modulating downhole reflector |
CN105181362B (zh) * | 2015-06-19 | 2016-04-13 | 河海大学 | 水工建筑物渗流性态分布式光纤感知集成系统与方法 |
GB2567370A (en) * | 2016-09-22 | 2019-04-10 | Halliburton Energy Services Inc | Mitigation of attenuation for fiber optic sensing during cementing |
GB201803543D0 (en) * | 2018-03-06 | 2018-04-18 | Neptune Subsea Ip Ltd | Submarine optical system |
US11326936B2 (en) | 2020-03-02 | 2022-05-10 | Halliburton Energy Services, Inc. | Topside distributed acoustic sensing interrogation of subsea wells with a single optical waveguide |
US11956011B2 (en) * | 2022-08-17 | 2024-04-09 | Subcom, Llc | Architecture, apparatus, and power delivery method for environmental measurement in subsea system |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5191458A (en) | 1991-06-12 | 1993-03-02 | Grumman Aerospace Corporation | Optical electronic multiplexing reflection sensor system |
JPH05310440A (ja) | 1992-05-08 | 1993-11-22 | Matsushita Electric Ind Co Ltd | 光ファイバ、光増幅器、光伝送システム及び固体レーザ |
US5321707A (en) | 1992-07-27 | 1994-06-14 | General Instrument Corporation | Remote pumping for active optical devices |
GB2281463B (en) | 1993-08-23 | 1998-01-28 | Northern Telecom Ltd | Optical transmission system |
GB9324333D0 (en) * | 1993-11-26 | 1994-01-12 | Sensor Dynamics Ltd | Measurement of one or more physical parameters |
US5517024A (en) | 1994-05-26 | 1996-05-14 | Schlumberger Technology Corporation | Logging-while-drilling optical apparatus |
DE4437325A1 (de) | 1994-10-19 | 1996-04-25 | Bosch Gmbh Robert | Optischer Schalter und optisches Koppelfeld damit |
FR2747868B1 (fr) * | 1996-04-18 | 1998-05-15 | Alcatel Submarcom | Montage a deux amplificateurs optiques, notamment pour repeteur d'un systeme de telecommunication par voie sous-marine |
US5866898A (en) * | 1996-07-12 | 1999-02-02 | The Board Of Trustees Of The Leland Stanford Junior University | Time domain multiplexed amplified sensor array with improved signal to noise ratios |
US6281489B1 (en) | 1997-05-02 | 2001-08-28 | Baker Hughes Incorporated | Monitoring of downhole parameters and tools utilizing fiber optics |
US6181466B1 (en) * | 1997-08-23 | 2001-01-30 | Pirelle Cavi E Sistemi S.P.A. | Unequal couplers for multimode pumping optical amplifiers |
GB9721473D0 (en) * | 1997-10-09 | 1997-12-10 | Sensor Dynamics Ltd | Interferometric sensing apparatus |
JP3597999B2 (ja) | 1997-12-26 | 2004-12-08 | 京セラ株式会社 | 光ファイバカップラとその製造方法及びそれを用いた光増幅器 |
US6271766B1 (en) * | 1998-12-23 | 2001-08-07 | Cidra Corporation | Distributed selectable latent fiber optic sensors |
US6292292B1 (en) | 2000-02-18 | 2001-09-18 | Photon-X | Rare earth polymers, optical amplifiers and optical fibers |
US6507679B1 (en) | 1999-05-13 | 2003-01-14 | Litton Systems, Inc. | Long distance, all-optical telemetry for fiber optic sensor using remote optically pumped EDFAs |
KR100352373B1 (ko) | 1999-12-03 | 2002-09-11 | 한국전자통신연구원 | 복합 희토류 이온을 첨가한 광도파로 |
US6396624B1 (en) | 2000-01-11 | 2002-05-28 | Tycom (Us) Inc. | Extended band erbium doped fiber amplifier |
GB2361597A (en) * | 2000-04-20 | 2001-10-24 | Abb Offshore Systems Ltd | Underwater optical fibre communication system |
US6785004B2 (en) * | 2000-11-29 | 2004-08-31 | Weatherford/Lamb, Inc. | Method and apparatus for interrogating fiber optic sensors |
US20030011878A1 (en) | 2001-07-11 | 2003-01-16 | Maas Steven J. | Remote pumping of optical amplifier system and method |
-
2003
- 2003-06-20 US US10/600,478 patent/US6995899B2/en not_active Expired - Lifetime
- 2003-06-25 AU AU2003279893A patent/AU2003279893B2/en not_active Ceased
- 2003-06-25 BR BR0312213-1A patent/BR0312213A/pt active Search and Examination
- 2003-06-25 WO PCT/US2003/020516 patent/WO2004003342A2/en not_active Application Discontinuation
- 2003-06-25 GB GB0427295A patent/GB2405759B/en not_active Expired - Fee Related
-
2004
- 2004-12-29 NO NO20045690A patent/NO20045690L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
AU2003279893A1 (en) | 2004-01-19 |
WO2004003342A3 (en) | 2004-04-01 |
GB2405759A (en) | 2005-03-09 |
US20040109228A1 (en) | 2004-06-10 |
NO20045690L (no) | 2005-01-27 |
AU2003279893B2 (en) | 2008-06-12 |
US6995899B2 (en) | 2006-02-07 |
WO2004003342A2 (en) | 2004-01-08 |
GB2405759B (en) | 2007-04-04 |
GB0427295D0 (en) | 2005-01-19 |
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Legal Events
Date | Code | Title | Description |
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B07A | Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B11D | Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time |