WO2000017489A3 - Geoelectric pre-prospecting method - Google Patents

Geoelectric pre-prospecting method Download PDF

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Publication number
WO2000017489A3
WO2000017489A3 PCT/DE1999/002981 DE9902981W WO0017489A3 WO 2000017489 A3 WO2000017489 A3 WO 2000017489A3 DE 9902981 W DE9902981 W DE 9902981W WO 0017489 A3 WO0017489 A3 WO 0017489A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
geoelectric
current
outer ring
inner electrode
Prior art date
Application number
PCT/DE1999/002981
Other languages
German (de)
French (fr)
Other versions
WO2000017489A2 (en
Inventor
Armin Kaus
Thomas Kopp
Original Assignee
Armin Kaus
Thomas Kopp
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 Armin Kaus, Thomas Kopp filed Critical Armin Kaus
Priority to AU12606/00A priority Critical patent/AU1260600A/en
Priority to EP99955730A priority patent/EP1114336A2/en
Publication of WO2000017489A2 publication Critical patent/WO2000017489A2/en
Publication of WO2000017489A3 publication Critical patent/WO2000017489A3/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C39/00—Devices for testing in situ the hardness or other properties of minerals, e.g. for giving information as to the selection of suitable mining tools
    • 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
    • G01V3/20—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with propagation of electric current
    • G01V3/24—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with propagation of electric current using ac

Landscapes

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

Abstract

The aim of the invention is to carry out a geoelectric pre-prospecting method for mechanical and conventional tunnel and cavity advance headings for continuously detecting a specific rock resistance distribution in an advance heading forefield inside a rock formation during through positioning thereof. To this end, a geoelectric apparatus (9) feeds a screen current (I1) into the rock formation via an outer ring electrode (A1) and feeds a measured current (I0) via at least one inner electrode (A0) configured such that it is homopolar to the outer electrode (A1). The screen current constructs a constant zero-potential circular curve (0) between the outer ring electrode (A1) and the inner electrode (A0). At least one current electrode (B0) which has a polarity opposite the outer ring electrode (A1) and inner electrode (A0) and which is connected to the geoelectric apparatus (9) is arranged at a relatively large distance from the same in the rock formation. The geoelectric apparatus (9) measures the intensity of the measured current (I0) in order to calculate an apparent rock resistance (rho-s) and simultaneously calculates a voltage (U0) between the inner electrode (A0) and the current electrode (B0).
PCT/DE1999/002981 1998-09-19 1999-09-18 Geoelectric pre-prospecting method WO2000017489A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU12606/00A AU1260600A (en) 1998-09-19 1999-09-18 Geoelectric pre-prospecting method
EP99955730A EP1114336A2 (en) 1998-09-19 1999-09-18 Geoelectric pre-prospecting method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19842975.4 1998-09-19
DE1998142975 DE19842975B4 (en) 1998-09-19 1998-09-19 Geoelectric pre-exploration method for mechanical and conventional tunnel and cavity tunneling and measuring device therefor

Publications (2)

Publication Number Publication Date
WO2000017489A2 WO2000017489A2 (en) 2000-03-30
WO2000017489A3 true WO2000017489A3 (en) 2000-08-17

Family

ID=7881524

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/002981 WO2000017489A2 (en) 1998-09-19 1999-09-18 Geoelectric pre-prospecting method

Country Status (4)

Country Link
EP (1) EP1114336A2 (en)
AU (1) AU1260600A (en)
DE (1) DE19842975B4 (en)
WO (1) WO2000017489A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006009246B3 (en) * 2006-02-28 2007-08-02 GeoForschungsZentrum Potsdam Stiftung des öffentlichen Rechts Preliminary surveying for tunnel building involves sensor arrangement with number of sensors distributed on tunnel wall receiving surface waves running from face of tunnel to sensors, using propagation model and transition time evaluation
DE102007021399A1 (en) 2007-05-18 2008-11-20 Kopp, Thomas Geoelectrical parameter determining method for measuring device for e.g. gas exploration, involves utilizing shield and measuring electrodes for frequency-dependent determination based on analysis of measuring circuit resistances
DE102009043973A1 (en) 2009-09-10 2011-03-17 Qumon Gmbh Electrical method for penetration-free exploration of material thicknesses and discontinuities in conductive medium, involves supplying one of glaze penetrations according to front measuring electrode with current
DE102010050143A1 (en) 2010-11-03 2012-05-03 Qumon Gmbh Method for nondestructive electrical investigation and monitoring of subsurface area starting from axially driven underground openings, involves utilizing differently grouped and spread transmitter ground dipole arrangements
DE112015002700B4 (en) 2015-03-11 2021-12-23 Shandong University TBM 3D advance exploration system with integration of rock quarry epicenter and active epicenter
CN112901159B (en) * 2021-01-29 2022-01-11 中国矿业大学 Environment monitoring device and method for mine tunneling robot
CN113216929B (en) * 2021-04-29 2023-12-22 中国科学院武汉岩土力学研究所 Method and equipment for measuring rock and soil parameters while drilling based on electromagnetic geophysical prospecting
CN113885083B (en) * 2021-08-05 2024-04-09 中煤科工集团西安研究院有限公司 Underground direct-current axial dipole-motion source abnormity self-display advanced detection method
CN113885086B (en) * 2021-08-05 2023-06-13 中煤科工集团西安研究院有限公司 Underground direct-current equatorial direction dipole dynamic source abnormity self-explicit advanced detection method
CN113885085B (en) * 2021-08-05 2023-06-09 中煤科工集团西安研究院有限公司 Advanced detection method for underground direct-current axial dipole-motion source
CN113900151B (en) * 2021-08-05 2024-04-09 中煤科工集团西安研究院有限公司 Underground direct-current monopole motion source abnormity self-display advanced detection method
CN113703063B (en) * 2021-09-07 2023-08-11 中煤科工集团西安研究院有限公司 Advanced detection method for mine azimuth focusing direct current method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1448356A1 (en) * 1962-06-13 1970-01-02 Geofizikai Meroemueszerek Gyar Method and device for the selective recording of the profile of fissures (secondary porosity) in the dense reservoir rocks opened up with boreholes as well as the entire secondary and primary) porosity of reservoirs
FR2610114A1 (en) * 1987-01-28 1988-07-29 Grimaldi Pierre Method and equipment for continuous detection of variations in the nature or condition of the rocks surrounding a tunnelling machine by an electrical method
DE3819818A1 (en) * 1988-06-10 1989-12-14 Egmond Nicolaas Wilh J Van Dip Measuring method for surveying the ground in the zone in front of the face during underground driving of tunnel cross-sections
EP0697604A1 (en) * 1994-08-03 1996-02-21 F C B Method and system for ground recognition in front of an excavating machine
US5720355A (en) * 1993-07-20 1998-02-24 Baroid Technology, Inc. Drill bit instrumentation and method for controlling drilling or core-drilling

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993944A (en) * 1975-12-22 1976-11-23 Texaco Inc. Movable oil measurement combining dual radio frequency induction and dual induction laterolog measurements
US4738812A (en) * 1982-11-12 1988-04-19 Teleco Oilfield Services Inc. Method of forming an electrode structure
US4786874A (en) * 1986-08-20 1988-11-22 Teleco Oilfield Services Inc. Resistivity sensor for generating asymmetrical current field and method of using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1448356A1 (en) * 1962-06-13 1970-01-02 Geofizikai Meroemueszerek Gyar Method and device for the selective recording of the profile of fissures (secondary porosity) in the dense reservoir rocks opened up with boreholes as well as the entire secondary and primary) porosity of reservoirs
FR2610114A1 (en) * 1987-01-28 1988-07-29 Grimaldi Pierre Method and equipment for continuous detection of variations in the nature or condition of the rocks surrounding a tunnelling machine by an electrical method
DE3819818A1 (en) * 1988-06-10 1989-12-14 Egmond Nicolaas Wilh J Van Dip Measuring method for surveying the ground in the zone in front of the face during underground driving of tunnel cross-sections
US5720355A (en) * 1993-07-20 1998-02-24 Baroid Technology, Inc. Drill bit instrumentation and method for controlling drilling or core-drilling
EP0697604A1 (en) * 1994-08-03 1996-02-21 F C B Method and system for ground recognition in front of an excavating machine

Also Published As

Publication number Publication date
EP1114336A2 (en) 2001-07-11
AU1260600A (en) 2000-04-10
DE19842975A1 (en) 2000-04-27
WO2000017489A2 (en) 2000-03-30
DE19842975B4 (en) 2004-01-29

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