DE3883592D1 - Verfahren und Vorrichtung zur Induktionsmessung. - Google Patents

Verfahren und Vorrichtung zur Induktionsmessung.

Info

Publication number
DE3883592D1
DE3883592D1 DE88401023T DE3883592T DE3883592D1 DE 3883592 D1 DE3883592 D1 DE 3883592D1 DE 88401023 T DE88401023 T DE 88401023T DE 3883592 T DE3883592 T DE 3883592T DE 3883592 D1 DE3883592 D1 DE 3883592D1
Authority
DE
Germany
Prior art keywords
induction measurement
induction
measurement
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
DE88401023T
Other languages
English (en)
Inventor
Richard Chandler
Richard Rosthal
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.)
Schlumberger Ltd USA
Original Assignee
Schlumberger Ltd USA
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 Schlumberger Ltd USA filed Critical Schlumberger Ltd USA
Application granted granted Critical
Publication of DE3883592D1 publication Critical patent/DE3883592D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
DE88401023T 1987-04-27 1988-04-26 Verfahren und Vorrichtung zur Induktionsmessung. Expired - Lifetime DE3883592D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/043,130 US5157605A (en) 1987-04-27 1987-04-27 Induction logging method and apparatus including means for combining on-phase and quadrature components of signals received at varying frequencies and including use of multiple receiver means associated with a single transmitter

Publications (1)

Publication Number Publication Date
DE3883592D1 true DE3883592D1 (de) 1993-10-07

Family

ID=21925652

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88401023T Expired - Lifetime DE3883592D1 (de) 1987-04-27 1988-04-26 Verfahren und Vorrichtung zur Induktionsmessung.

Country Status (6)

Country Link
US (1) US5157605A (de)
EP (1) EP0289418B1 (de)
BR (1) BR8802004A (de)
DE (1) DE3883592D1 (de)
NO (2) NO173301C (de)
OA (1) OA08838A (de)

Families Citing this family (115)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4965522A (en) * 1988-11-09 1990-10-23 Schlumberger Technology Corporation Multifrequency signal transmitter with attenuation of selected harmonies for an array induction well logging apparatus
US4958073A (en) * 1988-12-08 1990-09-18 Schlumberger Technology Corporation Apparatus for fine spatial resolution measurments of earth formations
EP0539118B1 (de) * 1991-10-22 1997-12-17 Halliburton Energy Services, Inc. Verfahren zum Bohrlochmessen während des Bohrens
US5448171A (en) * 1992-07-08 1995-09-05 Halliburton Company Method for variable radial depth induction log
US5892361A (en) * 1994-03-14 1999-04-06 Baker Hughes Incorporated Use of raw amplitude and phase in propagation resistivity measurements to measure borehole environmental parameters
US5811973A (en) * 1994-03-14 1998-09-22 Baker Hughes Incorporated Determination of dielectric properties with propagation resistivity tools using both real and imaginary components of measurements
US6060884A (en) * 1994-03-14 2000-05-09 Meyer, Jr.; Wallace Harold Method and apparatus for measuring electromagnetic properties of materials in borehole environs and simultaneously determining the quality of the measurements
CA2154378C (en) 1994-08-01 2006-03-21 Larry W. Thompson Method and apparatus for interrogating a borehole
FR2729223A1 (fr) * 1995-01-10 1996-07-12 Commissariat Energie Atomique Dispositif de cartographie d'un milieu par mesure a induction
US5668475A (en) * 1995-12-01 1997-09-16 Schlumberger Technology Corporation Induction logging sonde including a folded array apparatus having a plurality of receiver cowound coils and bucking coils
AU716441B2 (en) * 1995-12-01 2000-02-24 Schlumberger Technology B.V. Method for electromagnetically exploring an earth formation
US5698982A (en) * 1996-03-18 1997-12-16 Computalog Research, Inc. Method and system for skin effect correction in a multiple transmit frequency induction logging system
US5831433A (en) * 1996-12-04 1998-11-03 Sezginer; Abdurrahman Well logging method and apparatus for NMR and resistivity measurements
CA2244998C (en) * 1996-12-04 2004-03-16 Schlumberger Canada Limited Method, apparatus, and article of manufacture for solving 3d maxwell equations in inductive logging applications
US6057784A (en) * 1997-09-02 2000-05-02 Schlumberger Technology Corporatioin Apparatus and system for making at-bit measurements while drilling
US6188222B1 (en) * 1997-09-19 2001-02-13 Schlumberger Technology Corporation Method and apparatus for measuring resistivity of an earth formation
US6047240A (en) * 1998-01-16 2000-04-04 Schlumberger Technology Corporation Method and apparatus for evaluating the resistivity of invaded formations at high apparent dip angle
NO315725B1 (no) 1998-06-18 2003-10-13 Norges Geotekniske Inst Anordning for måling og overvåking av resistivitet utenfor et brönnrör i etpetroleumsreservoar
US6285190B1 (en) * 1999-06-01 2001-09-04 Digital Control Incorporated Skin depth compensation in underground boring applications
US6756783B2 (en) 1999-06-01 2004-06-29 Merlin Technology, Inc Multi-frequency boring tool locating system and method
US6216089B1 (en) 1999-09-07 2001-04-10 Schlumberger Technology Corporation Method and apparatus for producing a conductivity log unaffected by shoulder effect and dip from data developed by a well tool
US6586939B1 (en) 1999-12-24 2003-07-01 Baker Hughes Incorporated Method and apparatus for reducing the effects of parasitic and galvanic currents in a resistivity measuring tool
US7190169B2 (en) * 1999-12-24 2007-03-13 Baker Hughes Incorporated Method and apparatus for internal calibration in induction logging instruments
US7598741B2 (en) * 1999-12-24 2009-10-06 Baker Hughes Incorporated Method and apparatus for internal calibration in induction logging instruments
US7027967B1 (en) 2000-06-02 2006-04-11 Schlumberger Technology Corporation Method and system for indicating anisotropic resistivity in an earth formation
US6366858B1 (en) 2000-06-30 2002-04-02 S. Mark Haugland Method of and apparatus for independently determining the resistivity and/or dielectric constant of an earth formation
US6631328B2 (en) 2000-06-30 2003-10-07 W-H Energy Services, Inc. Method of determining resistivity of an earth formation with phase resistivity evaluation based on a phase shift measurement and attenuation resistivity evaluation based on an attenuation measurement and the phase shift measurement
US7363159B2 (en) * 2002-02-28 2008-04-22 Pathfinder Energy Services, Inc. Method of determining resistivity and/or dielectric values of an earth formation as a function of position within the earth formation
US6703837B1 (en) 2000-09-15 2004-03-09 Precision Drilling Technology Services Group, Inc. Wellbore resistivity tool with simultaneous multiple frequencies
US6788065B1 (en) * 2000-10-12 2004-09-07 Schlumberger Technology Corporation Slotted tubulars for subsurface monitoring in directed orientations
US6541979B2 (en) 2000-12-19 2003-04-01 Schlumberger Technology Corporation Multi-coil electromagnetic focusing methods and apparatus to reduce borehole eccentricity effects
US6885947B2 (en) 2001-03-08 2005-04-26 Baker Hughes Incorporated Method for joint interpretation of multi-array induction and multi-component induction measurements with joint dip angle estimation
CA2455388A1 (en) 2001-08-03 2003-03-27 Baker Hughes Incorporated A method and apparatus for a multi-component induction instrument measuring system
EP1444535A1 (de) * 2001-11-13 2004-08-11 Weatherford/Lamb, Inc. Bohrlochkompensationssystem und verfahren für ein bohrlochvermessungswerkzeug auf der basis des spezifischen widerstands
US6646441B2 (en) 2002-01-19 2003-11-11 Precision Drilling Technology Services Group Inc. Well logging system for determining resistivity using multiple transmitter-receiver groups operating at three frequencies
US7463035B2 (en) 2002-03-04 2008-12-09 Baker Hughes Incorporated Method and apparatus for the use of multicomponent induction tool for geosteering and formation resistivity data interpretation in horizontal wells
KR100539225B1 (ko) * 2002-06-20 2005-12-27 삼성전자주식회사 히드록시기로 치환된 베이스 폴리머와 에폭시 링을포함하는 실리콘 함유 가교제로 이루어지는 네가티브형레지스트 조성물 및 이를 이용한 반도체 소자의 패턴 형성방법
BR0314766A (pt) * 2002-09-27 2005-07-26 Baker Hughes Inc Método para determinação de anisotropia de resistividade em ambiente de furo de poço condutor
US6819111B2 (en) * 2002-11-22 2004-11-16 Baker Hughes Incorporated Method of determining vertical and horizontal resistivity, and relative dip in anisotropic earth formations having an arbitrary electro-magnetic antenna combination and orientation with additional rotation and position measurements
US7093672B2 (en) * 2003-02-11 2006-08-22 Schlumberger Technology Corporation Systems for deep resistivity while drilling for proactive geosteering
US6892137B2 (en) 2003-04-29 2005-05-10 Pathfinder Energy Services, Inc. Adjustment for frequency dispersion effects in electromagnetic logging data
US7388379B2 (en) * 2003-05-01 2008-06-17 Pathfinder Energy Services, Inc. Series-resonant tuning of a downhole loop antenna
US7043370B2 (en) * 2003-08-29 2006-05-09 Baker Hughes Incorporated Real time processing of multicomponent induction tool data in highly deviated and horizontal wells
US7091877B2 (en) * 2003-10-27 2006-08-15 Schlumberger Technology Corporation Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion
US7737697B2 (en) * 2003-12-03 2010-06-15 Baker Hughes Incorporated Method and apparatus for use of the real component of a magnetic field of multicomponent resistivity measurements
US7042225B2 (en) * 2003-12-12 2006-05-09 Schlumberger Technology Corporation Apparatus and methods for induction-SFL logging
US7719282B2 (en) * 2004-04-14 2010-05-18 Baker Hughes Incorporated Method and apparatus for mulit-component induction instrument measuring system for geosteering and formation resistivity data interpretation in horizontal, vertical and deviated wells
US7205770B2 (en) * 2004-05-07 2007-04-17 Baker Hughes Incorporated Borehole conductivity simulator verification and transverse coil balancing
US7932723B2 (en) * 2004-05-07 2011-04-26 Baker Hughes Incorporated Borehole conductivity simulator verification and transverse coil balancing
US7319331B2 (en) 2004-05-07 2008-01-15 Baker Hughes Incorporated Two loop calibrator
US7408355B1 (en) * 2004-05-07 2008-08-05 Baker Hughes Incorporated Borehole conductivity simulator verification and transverse coil balancing
US7652478B2 (en) 2004-05-07 2010-01-26 Baker Hughes Incorporated Cross-component alignment measurement and calibration
US7969153B2 (en) * 2004-05-07 2011-06-28 Baker Hughes Incorporated Borehole conductivity simulator verification and transverse antenna balancing
US7392137B2 (en) 2004-06-15 2008-06-24 Baker Hughes Incorporated Determination of formation anistrophy, dip and azimuth
US8060310B2 (en) * 2004-06-15 2011-11-15 Baker Hughes Incorporated Geosteering in earth formations using multicomponent induction measurements
US7274991B2 (en) * 2004-06-15 2007-09-25 Baker Hughes Incorporated Geosteering in anisotropic formations using multicomponent induction measurements
US8112227B2 (en) * 2004-06-15 2012-02-07 Baker Hughes Incorporated Processing of multi-component induction measurements in a biaxially anisotropic formation
US7269515B2 (en) * 2004-06-15 2007-09-11 Baker Hughes Incorporated Geosteering in anisotropic formations using multicomponent induction measurements
US8736270B2 (en) 2004-07-14 2014-05-27 Schlumberger Technology Corporation Look ahead logging system
US7755361B2 (en) 2004-07-14 2010-07-13 Schlumberger Technology Corporation Apparatus and system for well placement and reservoir characterization
US7825664B2 (en) * 2004-07-14 2010-11-02 Schlumberger Technology Corporation Resistivity tool with selectable depths of investigation
US7786733B2 (en) 2004-07-14 2010-08-31 Schlumberger Technology Corporation Apparatus and system for well placement and reservoir characterization
US7151466B2 (en) * 2004-08-20 2006-12-19 Gabelmann Jeffrey M Data-fusion receiver
US7091722B2 (en) * 2004-09-29 2006-08-15 Schlumberger Technology Corporation Method and apparatus for measuring mud resistivity
US8030935B2 (en) * 2004-10-15 2011-10-04 Halliburton Energy Services, Inc. Minimizing the effect of borehole current in tensor induction logging tools
CN101095143B (zh) * 2004-11-04 2010-06-16 贝克休斯公司 多精度多维测井数据反演以及深岩层成像方法
US7286937B2 (en) * 2005-01-14 2007-10-23 Schlumberger Technology Corporation Estimating formation properties from downhole data
US7317991B2 (en) * 2005-01-18 2008-01-08 Baker Hughes Incorporated Multicomponent induction measurements in cross-bedded and weak anisotropy approximation
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
US7417436B2 (en) * 2005-02-28 2008-08-26 Schlumberger Technology Corporation Selectable tap induction coil
US7940919B2 (en) * 2005-03-14 2011-05-10 Inventec Multimedia & Telecom Corporation Periodic and automatic telephone redialling system and method
US20060208737A1 (en) * 2005-03-16 2006-09-21 Baker Hughes Incorporated Calibration of xx, yy and zz induction tool measurements
US20070083330A1 (en) * 2005-10-06 2007-04-12 Baker Hughes Incorporated Fast method for reconstruction of 3D formation rock properties using modeling and inversion of well-logging data
KR101308784B1 (ko) 2005-11-21 2013-09-17 엔테그리스, 아이엔씨. 소형 폼 팩터를 갖는 펌프용 시스템 및 방법
US7268555B1 (en) 2006-04-06 2007-09-11 Baker Hughes Incorporated Correction of cross-component induction measurements for misalignment using comparison of the XY formation response
US7379818B2 (en) * 2006-04-06 2008-05-27 Baker Hughes Incorporated Correction of cross-component induction measurements for misalignment using comparison of the XY formation response
US7333891B2 (en) * 2006-04-06 2008-02-19 Baker Hughes Incorporated Correction of cross-component induction measurements for misalignment using comparison of the XY formation response
EP2031420B1 (de) 2006-04-06 2014-05-07 Baker Hughes Incorporated Korrektur von komponentenübergreifenden Induktionsmessungen für Fehlausrichtung mittels Vergleich der XY-Formationsreaktion
US8931335B2 (en) * 2006-04-07 2015-01-13 Baker Hughes Incorporation Processing of multi-component induction data in the presence of borehole abnormalities
BRPI0711071B1 (pt) * 2006-04-26 2018-02-06 Baker Hughes Incorporated Método e aparelho para avaliação de formação de terreno e meio legível por computador para uso com este aparelho
US7778778B2 (en) * 2006-08-01 2010-08-17 Baker Hughes Incorporated Correction of multi-component measurements for tool eccentricity in deviated wells
US7629791B2 (en) * 2006-08-01 2009-12-08 Baker Hughes Incorporated Method and apparatus for making multi-component measurements in deviated wells
US7902827B2 (en) * 2006-09-19 2011-03-08 Baker Hughes Incorporated Method and apparatus for combined induction and imaging well logging
US7554328B2 (en) * 2006-11-13 2009-06-30 Baker Hughes Incorporated Method and apparatus for reducing borehole and eccentricity effects in multicomponent induction logging
US20080224706A1 (en) 2006-11-13 2008-09-18 Baker Hughes Incorporated Use of Electrodes and Multi-Frequency Focusing to Correct Eccentricity and Misalignment Effects on Transversal Induction Measurements
US7742008B2 (en) * 2006-11-15 2010-06-22 Baker Hughes Incorporated Multipole antennae for logging-while-drilling resistivity measurements
KR100837910B1 (ko) * 2006-12-05 2008-06-13 현대자동차주식회사 액티브 헤드 레스트의 높이 유지 장치
US7886591B2 (en) * 2007-03-01 2011-02-15 Schlumberger Technology Corporation Method for improving the determination of earth formation properties
US7508736B2 (en) * 2007-03-09 2009-03-24 Baker Hughes Incorporated Vector migration of 1st order free-surface related downgoing multiples from VSP data
US7714585B2 (en) * 2007-03-21 2010-05-11 Baker Hughes Incorporated Multi-frequency cancellation of dielectric effect
US7759940B2 (en) * 2007-04-04 2010-07-20 Baker Hughes Incorporated Mutual shielding of collocated induction coils in multi-component induction logging instruments
US7898260B2 (en) * 2007-04-10 2011-03-01 Baker Hughes Incorporated Method and apparatus for detecting borehole effects due to eccentricity of induction instruments
US7567869B2 (en) * 2007-04-27 2009-07-28 Baker Hughes Incorporated Induction tool for detail evaluation of near borehole zone
US7915895B2 (en) * 2007-06-22 2011-03-29 Baker Hughes Incorporated Method of calibrating an azimuthal inductive cross-coil or tilted coil instrument
US7952358B2 (en) * 2007-10-19 2011-05-31 Baker Hughes Incorporated Methods and apparatus for determination of a formation resistivity property using eccentered measurements
US7839149B2 (en) * 2008-01-11 2010-11-23 Baker Hughes Incorporated Multi-component resistivity logging tool with multiple antennas using common antenna grooves
US8036830B2 (en) 2008-05-29 2011-10-11 Baker Hughes Incorporated Resistivity imager in non-conductive mud for LWD and wireline applications
EP2148224A1 (de) * 2008-07-23 2010-01-27 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO Bestimmung von Bodeneigenschaften
US8046170B2 (en) * 2008-09-03 2011-10-25 Baker Hughes Incorporated Apparatus and method for estimating eccentricity effects in resistivity measurements
US8786287B2 (en) * 2009-03-04 2014-07-22 Baker Hughes Incorporated Collocated tri-axial induction sensors with segmented horizontal coils
US8727744B2 (en) 2010-02-26 2014-05-20 Entegris, Inc. Method and system for optimizing operation of a pump
US8684705B2 (en) 2010-02-26 2014-04-01 Entegris, Inc. Method and system for controlling operation of a pump based on filter information in a filter information tag
US8547103B2 (en) * 2010-03-15 2013-10-01 Baker Hughes Incorporated Multiple depths of investigation using two transmitters
US8762107B2 (en) 2010-09-27 2014-06-24 Baker Hughes Incorporated Triaxial induction calibration without prior knowledge of the calibration area's ground conductivity
WO2013122590A1 (en) * 2012-02-16 2013-08-22 Halliburton Energy Services, Inc. Apparatus and methods of skin effect correction
EP2682787A1 (de) * 2012-07-02 2014-01-08 Services Petroliers Schlumberger Verfahren und Systeme zur Verbesserung der Auslegung von Formationsbewertungsmessungen
US8854045B2 (en) * 2012-07-11 2014-10-07 Pico Technologies Llc Electronics for a thin bed array induction logging system
BR112016006046A2 (pt) * 2013-10-30 2017-08-01 Halliburton Energy Services Inc método, dispositivo de armazenamento legível por máquina, e, sistema
CA2969670A1 (en) * 2015-01-06 2016-07-14 Halliburton Energy Services, Inc. Formation characteristics determination apparatus, methods, and systems
US10317563B2 (en) * 2015-10-26 2019-06-11 Halliburton Energy Services, Inc. Frequency ratiometric processing of resistivity logging tool data
US11016216B2 (en) 2016-08-03 2021-05-25 Halliburton Energy Services, Inc. Multi-spacing array tool for determining pipe thickness of a multi-pipe structure
BR112019000791A2 (pt) 2016-08-19 2019-04-24 Halliburton Energy Services, Inc. sistema de detecção de corrosão para pelo menos um tubo, método para determinar a corrosão de um tubo e método para determinar a espessura do tubo
RU2679579C1 (ru) * 2018-02-27 2019-02-11 Общество с ограниченной ответственностью "ТЕХНОАС-СК" Способ определения места нахождения утечки жидкости из трубопровода и устройство для бесконтактного определения места нахождения утечки жидкости из трубопровода
CN112904433B (zh) * 2021-01-27 2023-03-17 天津大学 瞬变电磁对称结构的过套管电阻率测井方法
CN114002736B (zh) * 2021-09-07 2023-07-07 中国矿业大学 一种基于权重反褶积的地震勘探多频数据融合方法

Family Cites Families (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264318A (en) * 1938-04-08 1941-12-02 Frederick W Lee Geophysical surveying
US3012190A (en) * 1946-03-06 1961-12-05 Electro Mechanical Res Inc Multiple frequency alternating current network
US2608602A (en) * 1946-08-09 1952-08-26 Gulf Research Development Co Detecting device
US2582314A (en) * 1949-06-15 1952-01-15 Schlumberger Well Surv Corp Electromagnetic well logging system
US2625583A (en) * 1950-10-28 1953-01-13 Schlumberger Well Surv Corp Magnetic induction well-logging instrument
US2725523A (en) * 1952-06-06 1955-11-29 Schlumberger Well Surv Corp Multiple coil apparatus for induction well logging
US2761103A (en) * 1952-08-05 1956-08-28 Schlumberger Well Surv Corp Induction well logging apparatus
US2723375A (en) * 1953-03-02 1955-11-08 Schlumberger Well Surv Corp Induction logging apparatus
US2790138A (en) * 1955-08-09 1957-04-23 Schlumberger Well Surv Corp Induction well logging
US2929984A (en) * 1956-01-12 1960-03-22 Canadian Airborne Geophysics L Method and apparatus for qualitative electromagnetic surveying
US2987668A (en) * 1956-05-29 1961-06-06 Schlumberger Well Surv Corp Systems for well logging
US2928038A (en) * 1956-10-05 1960-03-08 Welex Inc Electromagnetic well logging system
US2948846A (en) * 1956-11-01 1960-08-09 Schlumberger Well Surv Corp Well logging systems
US3051892A (en) * 1957-09-06 1962-08-28 Schlumberger Well Surv Corp Electromagnetic well logging systems
US3150314A (en) * 1958-06-16 1964-09-22 Schlumberger Well Surv Corp Apparatus for electromagnetically in-vestigating earth formations including means for obtaining a resistivity signal directly
US2964698A (en) * 1958-06-30 1960-12-13 Schlumberger Well Surv Corp Borehole investigation apparatus
US3086168A (en) * 1959-03-30 1963-04-16 Halliburton Co Synthetic array logging system and method
US3067383A (en) * 1959-04-16 1962-12-04 Schlumberger Well Surv Corp Induction well logging
US3067382A (en) * 1959-04-16 1962-12-04 Schlumberger Well Surv Corp Induction well logging
NL250643A (de) * 1959-04-17
US3090910A (en) * 1959-05-21 1963-05-21 Schlumberger Well Surv Corp System for measuring by induction the conductivity of a medium
US3147429A (en) * 1960-02-08 1964-09-01 Schlumberger Well Surv Corp Induction method and apparatus for investigating earth formation utilizing two quadrature phase components of a detected signal
US3119061A (en) * 1960-01-21 1964-01-21 Schlumberger Well Surv Corp Methods and apparatus for investigating earth formations which minimize the influence of electrical skin effect
US3226633A (en) * 1960-06-08 1965-12-28 Schlumberger Well Surv Corp Induction logging apparatus including non-linear means for translating a detected signal
SU136831A1 (ru) * 1960-03-31 1960-11-30 Г.Ф. Игнатьев Устройство дл осуществлени способа многочастотного глубинного электромагнитного зондировани
US3179879A (en) * 1960-05-16 1965-04-20 Schlumberger Well Surv Corp Well logging apparatus with means for modifying one signal component by a second signal component when a predetermined condition occurs
US3230445A (en) * 1960-06-15 1966-01-18 Schlumberger Well Surv Corp Methods and apparatus for investigating earth formations utilizing weighting factors varied as a function of a formation characteristic
FR1310728A (fr) * 1961-10-20 1962-11-30 Schlumberger Prospection Perfectionnements aux appareils d'exploration utilisés dans les sondages
US3249858A (en) * 1962-10-11 1966-05-03 Schlumberger Prospection Borehole investigating apparatus of the induction logging type having a slotted metal support member with coil means mounted thereon
US3329889A (en) * 1962-11-28 1967-07-04 Schlumberger Technology Corp Methods and apparatus for investigating earth formations featuring simultaneous focussed coil and electrode system measurements
US3259837A (en) * 1963-02-05 1966-07-05 Dresser Ind Induction logging apparatus utilizing plural frequencies for investigating different zones surrounding a borehole
US3327203A (en) * 1963-12-04 1967-06-20 Schlumberger Technology Corp Induction logging system utilizing plural diameter coils
FR1397251A (fr) * 1964-02-06 1965-04-30 Schlumberger Prospection Perfectionnements aux appareils de mesure de conductivité électrique
US3405349A (en) * 1965-04-07 1968-10-08 Schlumberger Technology Corp Well logging with borehole effect compensation and including memory storage of borehole measurements
US3457496A (en) * 1966-12-28 1969-07-22 Schlumberger Technology Corp Methods and apparatus for improving the resolution of well logging measurements
US3414805A (en) * 1967-05-01 1968-12-03 Schlumberger Technology Corp Induction logging apparatus having floating coils
US3457500A (en) * 1967-06-05 1969-07-22 Schlumberger Technology Corp Methods and apparatus for improving the resolution of well logging measurements
US3457497A (en) * 1967-06-05 1969-07-22 Schlumberger Technology Corp Methods and apparatus for improving the resolution of well logging measurements including signal correction
US3457499A (en) * 1967-06-05 1969-07-22 Schlumberger Technology Corp Methods and apparatus for improving the resolution of well logging measurements
US3457498A (en) * 1967-06-05 1969-07-22 Schlumberger Technology Corp Methods and apparatus for improving the resolution of well logging measurements
US3706025A (en) * 1969-12-29 1972-12-12 Schlumberger Technology Corp Induction logging methods and apparatus using more than one phase component of the received signal
FR2288988A1 (fr) * 1974-07-30 1976-05-21 Duroux Jean Procede et appareil de prospection en mer par mesure de champs electromagnetiques
CA1064584A (en) * 1977-01-04 1979-10-16 Barringer Research Limited Pulse generator using lc circuit to energize a coil
SU737904A1 (ru) * 1978-01-17 1980-05-30 Московский геологоразведочный институт Трехчастотное измерительное устройство дл геоэлектроразведки
US4472684A (en) * 1980-07-24 1984-09-18 Schlumberger Technology Corporation Deep investigation induction logging with mirror image coil arrays
US4451789A (en) * 1981-09-28 1984-05-29 Nl Industries, Inc. Logging tool and method for measuring resistivity of different radial zones at a common depth of measurement
US4471436A (en) * 1982-01-12 1984-09-11 Schlumberger Technology Corporation Phasor processing of induction logs including shoulder and skin effect correction
EG15337A (en) * 1982-01-12 1993-10-30 Schlumberger Ltd Induction logging technique
US4513376A (en) * 1982-01-12 1985-04-23 Schlumberger Technology Corporation Phasor processing of induction logs including skin effect correction
US4467425A (en) * 1982-01-12 1984-08-21 Schlumberger Technology Corporation Deconvolution filter for induction log processing
CA1133058A (en) * 1982-02-18 1982-10-05 Geonics Limited Electromagnetic geophysical surveying system
GB2121189A (en) * 1982-05-25 1983-12-14 Bpb Industries Plc Method and apparatus for induction logging of boreholes
GB2132356B (en) * 1982-12-17 1987-06-03 Shell Int Research A method and apparatus for correcting the relative motion of a transmitter and a receiver in airborne electromagnetic prospecting
US4529938A (en) * 1983-02-14 1985-07-16 Shell Oil Company High frequency induction method for locating the interface between formations having the same resistivity

Also Published As

Publication number Publication date
NO881571D0 (no) 1988-04-12
NO173301C (no) 1993-11-24
EP0289418A3 (en) 1990-05-30
BR8802004A (pt) 1988-11-29
US5157605A (en) 1992-10-20
NO173301B (no) 1993-08-16
NO881637D0 (no) 1988-04-15
EP0289418B1 (de) 1993-09-01
EP0289418A2 (de) 1988-11-02
OA08838A (en) 1989-03-31
NO881571L (no) 1988-10-28

Similar Documents

Publication Publication Date Title
DE3883592D1 (de) Verfahren und Vorrichtung zur Induktionsmessung.
DE3877516D1 (de) Geraet und verfahren zur bohrlochmessung.
DE3854546D1 (de) Verfahren und Gerät zur Programmablaufmessung.
DE3785475D1 (de) Verfahren und vorrichtung zur passiven abstandsmessung.
DE69013790T2 (de) Verfahren und Vorrichtung zur Positionsbestimmung.
DE3781654D1 (de) Verfahren und vorrichtung zur ketonmessung.
DE3687760T2 (de) Vorrichtung und verfahren zur koordinatenmessung.
DE3586650T2 (de) Verfahren und vorrichtung zur farbmessung.
DE3886745D1 (de) Verfahren und vorrichtung zur intrauterinen befruchtung.
DE3878092T2 (de) Verfahren und vorrichtung zur magnetbuerstenentwicklung.
DE3856142D1 (de) Verfahren und Vorrichtung zur Umsetzung der Abtastfrequenz
DE3863895D1 (de) Verfahren und vorrichtung zur erzielung von seismischen messwerten.
DE3851587D1 (de) Verfahren und Apparatur zur Widerstandsmessung.
DE58904662D1 (de) Verfahren und vorrichtung zur glanzmessung.
DE69009109D1 (de) Vorrichtung und Verfahren zur Lichtmessung.
DE68924563D1 (de) Verfahren und Vorrichtung zur Oberflächenanalyse.
DE3382706D1 (de) Verfahren und vorrichtung zur relativwegmessung.
DE300900T1 (de) Verfahren und vorrichtung zur gaerung und verwendung.
DE3770728D1 (de) Verfahren und vorrichtung zur impulsechomessung.
DE69014658D1 (de) Verfahren und Vorrichtung zur Signalgewinnung.
DE3766367D1 (de) Verfahren und vorrichtung zur radstellungsmessung.
DE59004481D1 (de) Verfahren und Vorrichtung zur Fahrgeschwindigkeitsbegrenzung.
DE3679142D1 (de) Verfahren und vorrichtung zur verschiebungsmessung.
DE3785338T2 (de) Vorrichtung und verfahren zur dampflaminierung.
DE3668495D1 (de) Verfahren zur induktiven wegmessung und wegsensor.

Legal Events

Date Code Title Description
8332 No legal effect for de