SE9100018L - Saett foer elektromagnetisk bestaemning av ledande kroppars laege under markytan - Google Patents

Saett foer elektromagnetisk bestaemning av ledande kroppars laege under markytan

Info

Publication number
SE9100018L
SE9100018L SE9100018A SE9100018A SE9100018L SE 9100018 L SE9100018 L SE 9100018L SE 9100018 A SE9100018 A SE 9100018A SE 9100018 A SE9100018 A SE 9100018A SE 9100018 L SE9100018 L SE 9100018L
Authority
SE
Sweden
Prior art keywords
field
primary
ground
values
phase
Prior art date
Application number
SE9100018A
Other languages
Unknown language ( )
English (en)
Other versions
SE9100018D0 (sv
Inventor
S Holmqvist
Original Assignee
Boliden Mineral Ab
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 Boliden Mineral Ab filed Critical Boliden Mineral Ab
Priority to SE9100018A priority Critical patent/SE9100018L/sv
Publication of SE9100018D0 publication Critical patent/SE9100018D0/sv
Priority to AU88870/91A priority patent/AU640543B2/en
Priority to CA002057326A priority patent/CA2057326C/en
Priority to US07/815,809 priority patent/US5208539A/en
Priority to EP92850002A priority patent/EP0494130B1/en
Priority to ES92850002T priority patent/ES2072743T3/es
Publication of SE9100018L publication Critical patent/SE9100018L/sv

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
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
    • G01V3/104—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
    • G01V3/105—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops
    • G01V3/107—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops using compensating coil or loop arrangements
SE9100018A 1991-01-04 1991-01-04 Saett foer elektromagnetisk bestaemning av ledande kroppars laege under markytan SE9100018L (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9100018A SE9100018L (sv) 1991-01-04 1991-01-04 Saett foer elektromagnetisk bestaemning av ledande kroppars laege under markytan
AU88870/91A AU640543B2 (en) 1991-01-04 1991-12-06 A method for determining electromagnetically the locations of underground conductive bodies
CA002057326A CA2057326C (en) 1991-01-04 1991-12-10 Method for determining electromagnetically the locations of underground conductive bodies
US07/815,809 US5208539A (en) 1991-01-04 1991-12-30 Method for determining electromagnetically the locations of underground ore deposits
EP92850002A EP0494130B1 (en) 1991-01-04 1992-01-03 Method and apparatus for electromagnetically detecting the locations of underground conductive bodies
ES92850002T ES2072743T3 (es) 1991-01-04 1992-01-03 Metodo y aparato para detectar electromagneticamente los emplazamientos de cuerpos conductores subterraneos.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9100018A SE9100018L (sv) 1991-01-04 1991-01-04 Saett foer elektromagnetisk bestaemning av ledande kroppars laege under markytan

Publications (2)

Publication Number Publication Date
SE9100018D0 SE9100018D0 (sv) 1991-01-04
SE9100018L true SE9100018L (sv) 1992-07-05

Family

ID=20381532

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9100018A SE9100018L (sv) 1991-01-04 1991-01-04 Saett foer elektromagnetisk bestaemning av ledande kroppars laege under markytan

Country Status (6)

Country Link
US (1) US5208539A (sv)
EP (1) EP0494130B1 (sv)
AU (1) AU640543B2 (sv)
CA (1) CA2057326C (sv)
ES (1) ES2072743T3 (sv)
SE (1) SE9100018L (sv)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5652519A (en) * 1994-01-13 1997-07-29 Jesse G. Robison Method and apparatus for measuring pollutants contaminating earth formation
US5892362A (en) * 1994-01-13 1999-04-06 Jesse G. Robison Method and apparatus for spacially continuous two-dimensional imaging of subsurface conditions through surface induction techniques
DE19547956A1 (de) * 1995-12-21 1997-06-26 Klaus Ebinger Elektromagnetisches Suchverfahren und Sondenanordnung zur Ortung von unter der Oberfläche liegenden Objekten
SE9703429L (sv) * 1997-09-23 1998-11-02 Boliden Ab Förfarande för elektromagnetisk sondering av borrhål jämte en sändar- och en mottagaranordning för förfarandets förverkligande
ATE278972T1 (de) * 2000-03-22 2004-10-15 Univ Johns Hopkins Elektromagnetisches sensorsystem zur objektunterscheidung sowie methode zum entdecken und identifizieren von metallobjekten
US6725161B1 (en) * 2001-04-26 2004-04-20 Applied Minds, Inc. Method for locating and identifying underground structures with horizontal borehole to surface tomography
US6837105B1 (en) * 2003-09-18 2005-01-04 Baker Hughes Incorporated Atomic clock for downhole applications
AU2015207977B2 (en) 2014-08-06 2021-01-21 Xcalibur Mph Switzerland Sa Systems and methods for active cancellation of transient signals and dynamic loop configuration
CN107884834A (zh) * 2017-10-19 2018-04-06 中煤科工集团西安研究院有限公司 同源多场瞬变电磁探测方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919397A (en) * 1956-04-30 1959-12-29 Lawrence W Morley Method and apparatus for inductive prospecting
FR2283451A1 (fr) * 1974-06-14 1976-03-26 Rech Geolog Miniere Methode et appareil de reconnaissance geophysique dans les forages par ondes tres basses frequences
AR207374A1 (es) * 1974-09-13 1976-09-30 Ciba Geigy Ag Procedimiento para la obtencion de granulados de pigmentos dispersables que no producen polvillo
US4314251A (en) * 1979-07-30 1982-02-02 The Austin Company Remote object position and orientation locater
AU577546B2 (en) * 1983-10-05 1988-09-29 Commonwealth Of Australia, The Induced magnetic field borehole surveying method
GB2148012B (en) * 1983-10-05 1987-04-01 Robert Wesley Cobcroft Induced magnetic field borehole surveying method and probe

Also Published As

Publication number Publication date
EP0494130B1 (en) 1995-05-24
AU640543B2 (en) 1993-08-26
EP0494130A1 (en) 1992-07-08
CA2057326C (en) 1995-11-07
AU8887091A (en) 1992-07-09
US5208539A (en) 1993-05-04
ES2072743T3 (es) 1995-07-16
CA2057326A1 (en) 1992-07-05
SE9100018D0 (sv) 1991-01-04

Similar Documents

Publication Publication Date Title
US4818944A (en) Magnetic locating and tracing system and method using dual-antenna transmitter to distinguish between concealed adjacent objects
FI68734C (fi) Foerfarande och anordning foer telemetrisk maetning av hjaertslag och ekg-signal med anvaendande av ett magnetiskt naerfaelt
US4295095A (en) Apparatus and method for detecting the location of metallic objects having alternating current passing therethrough
US4600356A (en) Underground pipeline and cable detector and process
US7884611B1 (en) Method for controlling a characteristic of an induction field
US5089779A (en) Method and apparatus for measuring strata resistivity adjacent a borehole
EP0434439A2 (en) Method and apparatus for making induction measurements through casing
CA2318390A1 (en) Electromagnetic logging tool with reflector for directional sensing
EP2629122A3 (en) Directional resistivity measurements for azimuthal proximity detection of bed boundaries
US20020163346A1 (en) Detector apparatus and method
CA1140213A (en) Subterranean metal pipe and cable locator
SE9100018L (sv) Saett foer elektromagnetisk bestaemning av ledande kroppars laege under markytan
EP1242963B1 (en) Interferometric processing method to identify bed boundaries
WO2002086545A1 (en) Measurement of subterranean lithology using electromagnetic energy
US5119028A (en) Method and system for determining the depth of an electrically conductive body in a medium having a known conductivity and a known permeability by measuring phase difference between a primary and secondary magnetic field
US3493850A (en) Apparatus for investigating formations surrounding a borehole including means for generating opposite polarity current flow on opposite sides of the borehole
US6657440B1 (en) Propagation of waves through materials
CN108363106A (zh) 一种基于时域电磁法的金属管线探测系统及方法
US2012479A (en) Device for detecting metals, etc.
GB2299915A (en) Communication along a drill string
EP0121360B1 (en) Electromagnetic borehole logging apparatus and method
JPH0659048A (ja) 誘導送信式埋設管探知装置及びその送信器
EP0017682A2 (en) Method and system for geophysical induction surveying
CA1085922A (en) Induced polarization prospecting method
JPS6015890B2 (ja) 海底同軸ケ−ブルの位置標定方法

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 9100018-2

Format of ref document f/p: F