WO2007045963A3 - Method and apparatus for conducting electromagnetic exploration - Google Patents

Method and apparatus for conducting electromagnetic exploration Download PDF

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Publication number
WO2007045963A3
WO2007045963A3 PCT/IB2006/002892 IB2006002892W WO2007045963A3 WO 2007045963 A3 WO2007045963 A3 WO 2007045963A3 IB 2006002892 W IB2006002892 W IB 2006002892W WO 2007045963 A3 WO2007045963 A3 WO 2007045963A3
Authority
WO
WIPO (PCT)
Prior art keywords
field
primary
earth
receiver
electromagnetic exploration
Prior art date
Application number
PCT/IB2006/002892
Other languages
French (fr)
Other versions
WO2007045963A2 (en
Inventor
David Bruce Dickson
Original Assignee
Anglo Operations Ltd
David Bruce Dickson
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 Anglo Operations Ltd, David Bruce Dickson filed Critical Anglo Operations Ltd
Priority to CA2626195A priority Critical patent/CA2626195C/en
Publication of WO2007045963A2 publication Critical patent/WO2007045963A2/en
Publication of WO2007045963A3 publication Critical patent/WO2007045963A3/en

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
    • 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
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat
    • G01V3/165—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat operating with magnetic or electric fields produced or modified by the object or by the detecting device

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

The invention concerns a method and apparatus (10) for conducting electromagnetic exploration of the earth's surface. At least one primary coil (12) is provided. The primary coil(s) is or are powered to generate a primary electromagnetic field and the earth's surface is exposed to this primary field. A receiver is provided to detect a secondary field generated by the earth as a result of currents generated therein by the primary field. Spaced apart nulling coils (14) are powered in such a manner as to null the primary field in a three-dimensional volume surrounding the receiver, thereby enabling the receiver to detect the secondary field vectorially.
PCT/IB2006/002892 2005-10-17 2006-10-17 Method and apparatus for conducting electromagnetic exploration WO2007045963A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2626195A CA2626195C (en) 2005-10-17 2006-10-17 Method and apparatus for conducting electromagnetic exploration

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200508395 2005-10-17
ZA2005/08395 2005-10-17

Publications (2)

Publication Number Publication Date
WO2007045963A2 WO2007045963A2 (en) 2007-04-26
WO2007045963A3 true WO2007045963A3 (en) 2008-01-03

Family

ID=37872471

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/002892 WO2007045963A2 (en) 2005-10-17 2006-10-17 Method and apparatus for conducting electromagnetic exploration

Country Status (5)

Country Link
CN (1) CN101292176A (en)
CA (1) CA2626195C (en)
RU (1) RU2008119277A (en)
WO (1) WO2007045963A2 (en)
ZA (1) ZA200803410B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111290029B (en) * 2020-03-27 2021-11-02 吉林大学 Non-coplanar Bucking compensated dragging type electromagnetic device and manufacturing method thereof
CN113534266B (en) * 2021-07-08 2022-05-13 吉林大学 Multi-receiving coil spread spectrum aviation electromagnetic exploration device containing compensation ring Z component

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8400157B2 (en) * 2008-08-29 2013-03-19 Geotech Airborne Limited Bucking coil and B-field measurement system and apparatus for time domain electromagnetic measurements
DE102011088406A1 (en) * 2011-12-13 2013-06-13 Robert Bosch Gmbh metal sensor
US9297922B2 (en) * 2013-03-21 2016-03-29 Vale S.A. Bucking circuit for annulling a magnetic field
CN104483709A (en) * 2014-12-08 2015-04-01 袁锡章 Handheld corresponding material universal detector

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828243A (en) * 1968-05-01 1974-08-06 Varian Associates Apparatus and method for electromagnetic geophysical exploration
SU1038910A1 (en) * 1982-04-07 1983-08-30 Северо-Западное Производственное Геологическое Объединение "Севзапгеология" Geoelectric prospecting device
US20020030492A1 (en) * 1996-03-25 2002-03-14 Yanping Guo Method and apparatus for locating a buried metallic object
US20030169045A1 (en) * 2002-03-06 2003-09-11 Whitton Raymond Macklin Method and apparatus for a rigidly joined together and floating bucking and receiver coil assembly for use in airborne electromagnetic survey systems
WO2004046761A1 (en) * 2002-11-20 2004-06-03 Edward Beverly Morrison Airbone electromagnetic time domain system, computer product and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828243A (en) * 1968-05-01 1974-08-06 Varian Associates Apparatus and method for electromagnetic geophysical exploration
SU1038910A1 (en) * 1982-04-07 1983-08-30 Северо-Западное Производственное Геологическое Объединение "Севзапгеология" Geoelectric prospecting device
US20020030492A1 (en) * 1996-03-25 2002-03-14 Yanping Guo Method and apparatus for locating a buried metallic object
US20030169045A1 (en) * 2002-03-06 2003-09-11 Whitton Raymond Macklin Method and apparatus for a rigidly joined together and floating bucking and receiver coil assembly for use in airborne electromagnetic survey systems
WO2004046761A1 (en) * 2002-11-20 2004-06-03 Edward Beverly Morrison Airbone electromagnetic time domain system, computer product and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 198422, Derwent World Patents Index; AN 1984-138437, XP002453799 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111290029B (en) * 2020-03-27 2021-11-02 吉林大学 Non-coplanar Bucking compensated dragging type electromagnetic device and manufacturing method thereof
CN113534266B (en) * 2021-07-08 2022-05-13 吉林大学 Multi-receiving coil spread spectrum aviation electromagnetic exploration device containing compensation ring Z component

Also Published As

Publication number Publication date
CN101292176A (en) 2008-10-22
CA2626195C (en) 2015-05-26
RU2008119277A (en) 2009-11-27
CA2626195A1 (en) 2007-04-26
ZA200803410B (en) 2009-07-29
WO2007045963A2 (en) 2007-04-26

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