DE69939154D1 - Elektromagnetisches bohrlochmessgerät mit reflektor für richtungsempfindliche erfassung - Google Patents

Elektromagnetisches bohrlochmessgerät mit reflektor für richtungsempfindliche erfassung

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Publication number
DE69939154D1
DE69939154D1 DE69939154T DE69939154T DE69939154D1 DE 69939154 D1 DE69939154 D1 DE 69939154D1 DE 69939154 T DE69939154 T DE 69939154T DE 69939154 T DE69939154 T DE 69939154T DE 69939154 D1 DE69939154 D1 DE 69939154D1
Authority
DE
Germany
Prior art keywords
boll
reflector
electromagnetic
measuring device
direct sensitivity
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.)
Expired - Lifetime
Application number
DE69939154T
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English (en)
Inventor
Paul L Sinclair
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE69939154D1 publication Critical patent/DE69939154D1/de
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
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
    • G01V3/28—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils
DE69939154T 1998-01-09 1999-01-08 Elektromagnetisches bohrlochmessgerät mit reflektor für richtungsempfindliche erfassung Expired - Lifetime DE69939154D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/005,068 US6100696A (en) 1998-01-09 1998-01-09 Method and apparatus for directional measurement of subsurface electrical properties
PCT/US1999/000502 WO1999035515A1 (en) 1998-01-09 1999-01-08 Electromagnetic logging tool with reflector for directional sensing

Publications (1)

Publication Number Publication Date
DE69939154D1 true DE69939154D1 (de) 2008-09-04

Family

ID=21714007

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69939154T Expired - Lifetime DE69939154D1 (de) 1998-01-09 1999-01-08 Elektromagnetisches bohrlochmessgerät mit reflektor für richtungsempfindliche erfassung

Country Status (7)

Country Link
US (1) US6100696A (de)
EP (1) EP1046065B1 (de)
AU (1) AU2314599A (de)
CA (1) CA2318390C (de)
DE (1) DE69939154D1 (de)
NO (1) NO329771B1 (de)
WO (1) WO1999035515A1 (de)

Families Citing this family (109)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6657440B1 (en) 1998-06-11 2003-12-02 Em-Tech Sensors Llc Propagation of waves through materials
US6392421B1 (en) 1998-06-11 2002-05-21 Em-Tech Llc Spectral EM frequency metallic thickness measurement using metallic transparencies
US6181138B1 (en) * 1999-02-22 2001-01-30 Halliburton Energy Services, Inc. Directional resistivity measurements for azimuthal proximity detection of bed boundaries
CN1434926A (zh) * 1999-07-09 2003-08-06 霍尼韦尔国际公司 传导波地层电阻率测量装置
GB9916576D0 (en) * 1999-07-15 1999-09-15 Geolink Uk Limited A directional instrument
US6216090B1 (en) * 1999-09-10 2001-04-10 Halliburton Energy Services, Inc. Interferometric processing method to identify bed boundaries
CA2392078C (en) 1999-11-03 2005-02-22 Nexicor Llc Hand held induction tool
US6628118B1 (en) 1999-11-20 2003-09-30 Em-Tech Sensors Llc Method and apparatus for control of magnetic flux direction and concentration
US6744263B2 (en) 1999-12-10 2004-06-01 Em-Tech Sensors Llc Apparatus and method for the measurement of electrical properties of materials through non-magnetizable materials
US6351245B1 (en) 1999-12-10 2002-02-26 Em-Tech Llc Use of phase coded permeability lensing to obtain directional information in electro-magnetic radiation
US6597186B2 (en) 1999-12-10 2003-07-22 Em-Tech Sensors Llc Through tank level gauging
AU7113801A (en) 2000-07-07 2002-01-21 T And A Radar B V 3d borehole radar antenna and algorithm, method and apparatus for subsurface surveys
US6509738B1 (en) * 2000-07-14 2003-01-21 Schlumberger Technology Corporation Electromagnetic induction well logging instrument having azimuthally sensitive response
US6553838B2 (en) 2000-08-25 2003-04-29 Em-Tech Llc Detection of anomalies on railroad tracks
US6630831B2 (en) 2000-09-02 2003-10-07 Em-Tech Sensors Llc Measurements of electrical properties through non magneticially permeable metals using directed magnetic beams and magnetic lenses
US6788065B1 (en) * 2000-10-12 2004-09-07 Schlumberger Technology Corporation Slotted tubulars for subsurface monitoring in directed orientations
US7019518B2 (en) 2000-10-16 2006-03-28 Amini Bijan K Non-contacting apparatus and method for measurement of ferromagnetic metal thickness
US6597177B1 (en) 2000-11-20 2003-07-22 Em-Tech Sensors Llc Through casing resistivity measurement in permanently installed downhole production environment
GB0101919D0 (en) * 2001-01-25 2001-03-07 Geolink Uk Ltd Induction logging antenna
WO2002086545A1 (en) * 2001-04-21 2002-10-31 Em-Tech Llc Measurement of subterranean lithology using electromagnetic energy
US6822579B2 (en) 2001-05-09 2004-11-23 Schlumberger Technology Corporation Steerable transceiver unit for downhole data acquistion in a formation
AU2002323445A1 (en) 2001-08-29 2003-03-18 Sensor Highway Limited Method and apparatus for determining the temperature of subterranean wells using fiber optic cable
CA2420806A1 (en) * 2002-03-06 2003-09-06 Raymond Macklin Whitton Method and apparatus for a rigidly joined together and floating bucking and receiver coil assembly for use in airborne electromagnetic survey systems
US6819110B2 (en) * 2002-03-26 2004-11-16 Schlumberger Technology Corporation Electromagnetic resistivity logging instrument with transverse magnetic dipole component antennas providing axially extended response
US6720771B2 (en) * 2002-03-26 2004-04-13 Council Of Scientific & Industrial Research Moving source dipole electromagnetic exploration device for deeper and poorer conductors and a method of detecting such conductors
US6937022B2 (en) * 2002-09-06 2005-08-30 Baker Hughes Incorporated Method and apparatus for a quadrupole transmitter for directionally sensitive induction tool
US6903553B2 (en) * 2002-09-06 2005-06-07 Baker Hughes Incorporated Method and apparatus for a quadrupole transmitter for directionally sensitive induction tool
US7345487B2 (en) * 2002-09-25 2008-03-18 Halliburton Energy Services, Inc. Method and system of controlling drilling direction using directionally sensitive resistivity readings
US7098858B2 (en) * 2002-09-25 2006-08-29 Halliburton Energy Services, Inc. Ruggedized multi-layer printed circuit board based downhole antenna
US7436183B2 (en) * 2002-09-30 2008-10-14 Schlumberger Technology Corporation Replaceable antennas for wellbore apparatus
US20040182162A1 (en) * 2003-02-03 2004-09-23 Sulzer Markets And Technology Ag Apparatus for the transmitting of electrical signals
US7093672B2 (en) * 2003-02-11 2006-08-22 Schlumberger Technology Corporation Systems for deep resistivity while drilling for proactive geosteering
US20040183538A1 (en) * 2003-03-19 2004-09-23 Tilman Hanstein Structure for electromagnetic induction well logging apparatus
US7026820B2 (en) * 2003-11-04 2006-04-11 Halliburton Energy Services, Inc. Method and apparatus for minimizing direct coupling for downhole logging devices
US6875966B1 (en) 2004-03-15 2005-04-05 Nexicor Llc Portable induction heating tool for soldering pipes
US7525315B2 (en) 2004-04-01 2009-04-28 Schlumberger Technology Corporation Resistivity logging tool and method for building the resistivity logging tool
US7420367B2 (en) * 2004-09-10 2008-09-02 Baker Hughes Incorporated High-frequency induction imager with concentric coils for MWD and wireline applications
US7313479B2 (en) * 2005-01-31 2007-12-25 Baker Hughes Incorporated Method for real-time well-site interpretation of array resistivity log data in vertical and deviated wells
US7518528B2 (en) * 2005-02-28 2009-04-14 Scientific Drilling International, Inc. Electric field communication for short range data transmission in a borehole
US7489134B2 (en) * 2005-03-10 2009-02-10 Arcady Reiderman Magnetic sensing assembly for measuring time varying magnetic fields of geological formations
US7436184B2 (en) * 2005-03-15 2008-10-14 Pathfinder Energy Services, Inc. Well logging apparatus for obtaining azimuthally sensitive formation resistivity measurements
US7414405B2 (en) * 2005-08-02 2008-08-19 Pathfinder Energy Services, Inc. Measurement tool for obtaining tool face on a rotating drill collar
US7639016B2 (en) * 2005-08-10 2009-12-29 Baker Hughes Incorporated Downhole multi-phase flow imager
US20080034856A1 (en) * 2006-08-08 2008-02-14 Scientific Drilling International Reduced-length measure while drilling apparatus using electric field short range data transmission
ATE513231T1 (de) * 2007-01-26 2011-07-15 Prad Res & Dev Nv Bohrlochtelemetriesystem
US8436618B2 (en) * 2007-02-19 2013-05-07 Schlumberger Technology Corporation Magnetic field deflector in an induction resistivity tool
US8395388B2 (en) * 2007-02-19 2013-03-12 Schlumberger Technology Corporation Circumferentially spaced magnetic field generating devices
US20100295547A1 (en) * 2007-02-19 2010-11-25 Hall David R Downhole Resistivity Receiver with Canceling Element
US7598742B2 (en) * 2007-04-27 2009-10-06 Snyder Jr Harold L Externally guided and directed field induction resistivity tool
US20090230969A1 (en) * 2007-02-19 2009-09-17 Hall David R Downhole Acoustic Receiver with Canceling Element
US8198898B2 (en) * 2007-02-19 2012-06-12 Schlumberger Technology Corporation Downhole removable cage with circumferentially disposed instruments
US7888940B2 (en) * 2007-02-19 2011-02-15 Schlumberger Technology Corporation Induction resistivity cover
US7541813B2 (en) * 2007-04-27 2009-06-02 Snyder Jr Harold L Externally guided and directed halbach array field induction resistivity tool
US7583085B2 (en) * 2007-04-27 2009-09-01 Hall David R Downhole sensor assembly
US8069716B2 (en) * 2007-06-21 2011-12-06 Scientific Drilling International, Inc. Multi-coupling reduced length measure while drilling apparatus
GB2462975A (en) * 2007-07-03 2010-03-03 Shell Int Research System and method for measuring a time-varying magnetic field and method for production of a hydrocarbon fluid
US7558675B2 (en) * 2007-07-25 2009-07-07 Smith International, Inc. Probablistic imaging with azimuthally sensitive MWD/LWD sensors
CN101796431B (zh) * 2007-08-01 2014-09-10 哈里伯顿能源服务公司 钻井工具传感器数据的远程处理和数据获取系统上的传感器数据校正
US8061443B2 (en) * 2008-04-24 2011-11-22 Schlumberger Technology Corporation Downhole sample rate system
US7919964B2 (en) * 2008-06-02 2011-04-05 Geonics Limited Combined electromagnetic sensor and magnetometer
US8427162B2 (en) * 2008-08-25 2013-04-23 Baker Hughes Incorporated Apparatus and method for detection of position of a component in an earth formation
US8278928B2 (en) * 2008-08-25 2012-10-02 Baker Hughes Incorporated Apparatus and method for detection of position of a component in an earth formation
US9360580B2 (en) * 2008-12-10 2016-06-07 Schlumberger Technology Corporation Method and apparatus for directional well logging
EP2237075B1 (de) * 2009-04-02 2012-10-17 Services Pétroliers Schlumberger Verfahren zur Bestimmung des dielektrischen Permittivitätsspektrums unterirdischer Gesteinsschichten
US8069931B2 (en) * 2009-04-09 2011-12-06 Phoenix Technology Services Lp System, method and apparatus for downhole system having integrated measurement while operating components
US8942941B2 (en) * 2009-10-09 2015-01-27 Baker Hughes Incorporated Current-to-voltage converters with dynamic feedback
WO2011072135A2 (en) * 2009-12-10 2011-06-16 Baker Hughes Incorporated Method and apparatus for borehole positioning
US7884611B1 (en) 2010-03-19 2011-02-08 Hall David R Method for controlling a characteristic of an induction field
US9075154B2 (en) * 2010-03-23 2015-07-07 Acoustic Zoom, Inc. Stationary star-shaped antenna method for manipulating focused beamformed, shaped fields and beamsteered electromagnetic signal from subtel sedimentary stratigraphic formations deep in the earth
CA2800170C (en) * 2010-05-21 2017-02-21 Halliburton Energy Services, Inc. Systems and methods for downhole bha insulation in magnetic ranging applications
GB2493894B (en) * 2010-06-01 2014-06-11 Halliburton Energy Serv Inc Fluid resistivity sensor
US8600115B2 (en) 2010-06-10 2013-12-03 Schlumberger Technology Corporation Borehole image reconstruction using inversion and tool spatial sensitivity functions
US10114140B2 (en) * 2010-08-26 2018-10-30 Schlumberger Technology Corporation Apparatus and method for microresistivity imaging in which transmitter coil and receiver coil axes are substantially perpendicular to the longitudinal axis of the tool body
RU2572875C2 (ru) 2010-09-17 2016-01-20 Бейкер Хьюз Инкорпорейтед Устройство для управления направлением бурения в продуктивном пласте с использованием магнитного поля постоянного тока
US9658360B2 (en) 2010-12-03 2017-05-23 Schlumberger Technology Corporation High resolution LWD imaging
US20120209528A1 (en) * 2011-02-10 2012-08-16 Baker Hughes Incorporated Inversion-Based Method to Correct for the Pipe Residual Signal in Transient MWD Measurements
RU2013138441A (ru) * 2011-02-25 2015-02-27 Мерлин Технолоджи, Инк. Подземный корпус бурильной колонны и способ передачи сигналов
US8695727B2 (en) 2011-02-25 2014-04-15 Merlin Technology, Inc. Drill string adapter and method for inground signal coupling
US20130113490A1 (en) * 2011-08-30 2013-05-09 Zhong Wang Apparatus and method for directional resistivity measurement while drilling using incomplete circular antenna
WO2013072844A1 (en) * 2011-11-14 2013-05-23 Schlumberger Technology B.V. Enhanced materials investigation
US9063244B2 (en) 2012-03-19 2015-06-23 Baker Hughes Incorporated Induction logging signals using complex waveforms and directional guidance antenna systems
US9057799B2 (en) 2012-03-19 2015-06-16 Baker Hughes Incorporated Induction logging signals and directional guidance antenna systems
WO2014011189A1 (en) * 2012-07-13 2014-01-16 1/5)Halliburton Energy Services, Inc. Apparatus and method for temperature independent balancing of a tool
US10202847B2 (en) * 2012-08-16 2019-02-12 Schlumberger Technology Corporation Use of metamaterial to enhance measurement of dielectric properties of a fluid
US9000940B2 (en) 2012-08-23 2015-04-07 Merlin Technology, Inc. Drill string inground isolator in an MWD system and associated method
US9188694B2 (en) * 2012-11-16 2015-11-17 Halliburton Energy Services, Inc. Optical interferometric sensors for measuring electromagnetic fields
US9507045B2 (en) 2012-12-18 2016-11-29 Schlumberger Technology Corporation Basalt fiber composite for antenna in well-logging
US9422802B2 (en) 2013-03-14 2016-08-23 Merlin Technology, Inc. Advanced drill string inground isolator housing in an MWD system and associated method
US9213124B2 (en) * 2013-03-22 2015-12-15 Oliden Technology, Llc Restorable antennae apparatus and system for well logging
US9213125B2 (en) * 2013-03-22 2015-12-15 Oliden Technology, Llc Well logging apparatus and system
BR112015020903A2 (pt) 2013-04-08 2017-07-18 Halliburton Energy Services Inc capa protetora para ferramentas de perfilagem
US9268053B2 (en) * 2013-06-12 2016-02-23 Well Resolutions Technology Apparatus and methods for making azimuthal resistivity measurements
CA2916275C (en) * 2013-06-18 2021-10-12 Well Resolutions Technology Modular resistivity sensor for downhole measurement while drilling
US10520628B2 (en) * 2013-09-30 2019-12-31 Halliburton Energy Services, Inc. Downhole gradiometric ranging for T-intersection and well avoidance utilizing transmitters and receivers having magnetic dipoles
US9880307B2 (en) * 2013-10-24 2018-01-30 Baker Hughes Incorporated Induction logging sensor
CN103643946A (zh) * 2013-12-16 2014-03-19 西南石油大学 一种随钻双电参数测井仪器
US9638827B2 (en) 2014-09-26 2017-05-02 Los Alamos National Security, Llc Directional antennas for electromagnetic mapping in a borehole
US10641087B2 (en) 2015-10-28 2020-05-05 Halliburton Energy Services, Inc. Inductive cavity sensors for resistivity tools
GB2556283A (en) * 2015-11-10 2018-05-23 Halliburton Energy Services Inc Defect discrimination apparatus, methods, and systems
US10520633B2 (en) 2015-12-10 2019-12-31 Baker Hughes, A Ge Company, Llc Dual-transmitter with short shields for transient MWD resistivity measurements
US10914138B2 (en) * 2016-05-20 2021-02-09 Tubel Llc Downhole power generator and pressure pulser communications module on a side pocket
EP3482197A4 (de) * 2016-08-12 2020-04-01 Halliburton Energy Services, Inc. Reduktion der abhängigkeit einer kernreaktion vom radius eines ersten rohres in korrosionsdetektionswerkzeugen
US11149537B2 (en) * 2016-09-27 2021-10-19 Halliburton Energy Services, Inc. Calibration of electromagnetic ranging tools
US11561200B1 (en) * 2017-05-02 2023-01-24 United States Of America, As Represented By The Secretary Of The Navy Eddy current detector
CN109505592B (zh) * 2017-09-14 2021-10-12 中国石油化工股份有限公司 高增益随钻电阻率信号接收装置
CN109901230B (zh) * 2019-04-02 2020-08-11 中国科学院地质与地球物理研究所 一种用于对感应测井仪器进行温度校正和深部地层环境模拟的设备
US10865640B2 (en) * 2019-04-10 2020-12-15 Saudi Arabian Oil Company Downhole tool with CATR
US11268380B2 (en) 2020-04-22 2022-03-08 Saudi Arabian Oil Company Kick detection using logging while drilling
CN114856550B (zh) * 2022-05-11 2023-04-04 西南石油大学 一种基于地磁异常标记的石油套管精确定位装置及方法

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1397251A (fr) * 1964-02-06 1965-04-30 Schlumberger Prospection Perfectionnements aux appareils de mesure de conductivité électrique
US3808520A (en) * 1973-01-08 1974-04-30 Chevron Res Triple coil induction logging method for determining dip, anisotropy and true resistivity
US4302723A (en) * 1979-06-15 1981-11-24 Schlumberger Technology Corporation Apparatus and method for determining dip and/or anisotropy of formations surrounding a borehole
US4297699A (en) * 1979-10-24 1981-10-27 Ensco, Inc. Radar drill guidance system
US4360777A (en) * 1979-12-31 1982-11-23 Schlumberger Technology Corporation Induction dipmeter apparatus and method
US4319191A (en) * 1980-01-10 1982-03-09 Texaco Inc. Dielectric well logging with radially oriented coils
US4785247A (en) * 1983-06-27 1988-11-15 Nl Industries, Inc. Drill stem logging with electromagnetic waves and electrostatically-shielded and inductively-coupled transmitter and receiver elements
US4651101A (en) * 1984-02-27 1987-03-17 Schlumberger Technology Corporation Induction logging sonde with metallic support
US4857852A (en) * 1986-06-20 1989-08-15 Schlumberger Technology Corp. Induction well logging apparatus with transformer coupled phase sensitive detector
US4814768A (en) * 1987-09-28 1989-03-21 The United States Of America As Represented By The United States Department Of Energy Downhole pulse radar
US4940943A (en) * 1988-04-19 1990-07-10 Baroid Technology, Inc. Method and apparatus for optimizing the reception pattern of the antenna of a propagating electromagnetic wave logging tool
US4876511A (en) * 1988-10-20 1989-10-24 Schlumberger Technology Corporation Method and apparatus for testing and calibrating an electromagnetic logging tool
US5212495A (en) * 1990-07-25 1993-05-18 Teleco Oilfield Services Inc. Composite shell for protecting an antenna of a formation evaluation tool
US5442294A (en) * 1990-09-10 1995-08-15 Baker Hughes Incorporated Conductivity method and apparatus for measuring strata resistivity adjacent a borehole
US5089779A (en) * 1990-09-10 1992-02-18 Develco, Inc. Method and apparatus for measuring strata resistivity adjacent a borehole
US5157331A (en) * 1991-10-04 1992-10-20 Western Atlas International, Inc. Enhanced wide aperture groove for antenna of downhole resistivity tool
US5235285A (en) * 1991-10-31 1993-08-10 Schlumberger Technology Corporation Well logging apparatus having toroidal induction antenna for measuring, while drilling, resistivity of earth formations
GB9308806D0 (en) * 1993-04-28 1993-06-09 Bpb Industries Plc Induction sonde
JP2534193B2 (ja) * 1993-05-31 1996-09-11 石油資源開発株式会社 指向性インダクション検層法および装置
US5453693A (en) * 1993-10-01 1995-09-26 Halliburton Company Logging system for measuring dielectric properties of fluids in a cased well using multiple mini-wave guides
GB9404381D0 (en) * 1994-03-07 1994-04-20 Bpb Industries Plc Induction logging instrument
GB2288028A (en) * 1994-03-31 1995-10-04 Halliburton Co Sealed modular downhole antenna
US5563512A (en) * 1994-06-14 1996-10-08 Halliburton Company Well logging apparatus having a removable sleeve for sealing and protecting multiple antenna arrays
US5530359A (en) * 1995-02-03 1996-06-25 Schlumberger Technology Corporation Borehole logging tools and methods using reflected electromagnetic signals
US5644231A (en) * 1996-03-04 1997-07-01 Schlumberger Technology Corporation High pressure magnetic antenna assembly
US5892460A (en) * 1997-03-06 1999-04-06 Halliburton Energy Services, Inc. Logging while drilling tool with azimuthal sensistivity

Also Published As

Publication number Publication date
WO1999035515A1 (en) 1999-07-15
EP1046065A4 (de) 2001-01-24
EP1046065A1 (de) 2000-10-25
NO20003518L (no) 2000-09-07
CA2318390A1 (en) 1999-07-15
NO20003518D0 (no) 2000-07-07
US6100696A (en) 2000-08-08
AU2314599A (en) 1999-07-26
NO329771B1 (no) 2010-12-13
CA2318390C (en) 2007-05-08
EP1046065B1 (de) 2008-07-23

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