FR2174767A1 - Geological exploration - in boreholes using electrical sounding - Google Patents

Geological exploration - in boreholes using electrical sounding

Info

Publication number
FR2174767A1
FR2174767A1 FR7208333A FR7208333A FR2174767A1 FR 2174767 A1 FR2174767 A1 FR 2174767A1 FR 7208333 A FR7208333 A FR 7208333A FR 7208333 A FR7208333 A FR 7208333A FR 2174767 A1 FR2174767 A1 FR 2174767A1
Authority
FR
France
Prior art keywords
potential difference
points
sepg
electrical
current
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.)
Granted
Application number
FR7208333A
Other languages
French (fr)
Other versions
FR2174767B1 (en
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Priority to FR7208333A priority Critical patent/FR2174767A1/en
Priority to CA165,933A priority patent/CA983577A/en
Publication of FR2174767A1 publication Critical patent/FR2174767A1/en
Application granted granted Critical
Publication of FR2174767B1 publication Critical patent/FR2174767B1/fr
Granted 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
    • G01V3/02—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current
    • G01V3/06—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current using ac

Landscapes

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

Abstract

In electrical underground prospecting by emitting a low frequency current between two adjacent points in the ground, measuring an electrical potential difference induced by this current between two other points spaced from the first to permit evaluation of one of the parameters rho e (electrical resistivity) and mu e (the equiv. magnetic permitivity), knowing the other from the values of the assembly of strata sepg. the current emission position from the position of the potential difference measurement, a novel feature of this technique is that the value of the parameter is determined by comparison with the measured value for potential difference to the value V calc. defined by where e1 = mean local resistivity near the wall of the bore hole of the stratum sepg. the two points for which the potential difference is measured: I = emitted current intensity in the ground gamma e = (e + j) square root w mu 2/2 rho e: w = 2 pi f: D24, D25, D34, D35 = distances sepg. each of the two emission points from each of the two points between which the potential difference is measured.
FR7208333A 1972-03-09 1972-03-09 Geological exploration - in boreholes using electrical sounding Granted FR2174767A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7208333A FR2174767A1 (en) 1972-03-09 1972-03-09 Geological exploration - in boreholes using electrical sounding
CA165,933A CA983577A (en) 1972-03-09 1973-03-08 Methode de prospection electrique du sous-sol et appareillage pour sa mise en oeuvre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7208333A FR2174767A1 (en) 1972-03-09 1972-03-09 Geological exploration - in boreholes using electrical sounding

Publications (2)

Publication Number Publication Date
FR2174767A1 true FR2174767A1 (en) 1973-10-19
FR2174767B1 FR2174767B1 (en) 1975-05-30

Family

ID=9094967

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7208333A Granted FR2174767A1 (en) 1972-03-09 1972-03-09 Geological exploration - in boreholes using electrical sounding

Country Status (2)

Country Link
CA (1) CA983577A (en)
FR (1) FR2174767A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2174767B1 (en) 1975-05-30
CA983577A (en) 1976-02-10

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Legal Events

Date Code Title Description
ST Notification of lapse