FR2853087A1 - Device for locating aquiferous layers comprises galvanometer placed on surface - Google Patents

Device for locating aquiferous layers comprises galvanometer placed on surface Download PDF

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Publication number
FR2853087A1
FR2853087A1 FR0303769A FR0303769A FR2853087A1 FR 2853087 A1 FR2853087 A1 FR 2853087A1 FR 0303769 A FR0303769 A FR 0303769A FR 0303769 A FR0303769 A FR 0303769A FR 2853087 A1 FR2853087 A1 FR 2853087A1
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France
Prior art keywords
galvanometer
layers
aquiferous
locating
electrode
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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.)
Pending
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FR0303769A
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French (fr)
Inventor
Jerome Bourg
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to FR0303769A priority Critical patent/FR2853087A1/en
Publication of FR2853087A1 publication Critical patent/FR2853087A1/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
    • G01V9/02—Determining existence or flow of underground water

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

A galvanometer is placed on the surface with its electrical terminals connected by an isolated wire on one side to an electrode moving in the drilled shaft and on the other to a terminal fixed to the earth. The moving electrode is displaced using a winch coil for the insulated wire in order to show the exact position of the aquiferous layers using the galvanometer if they are present. The moving electrode is lowered down the shaft and then raised slowly while the variations of the galvanometer are recorded. Variations between porous and permeable layers and layers which are not is clear on the resulting diagram as they have a higher potential.

Description

SYSTEME PERMETTANT LA LOCALISATION PRECISE DES FORMATIONS PERMEABLES ETSYSTEM FOR THE PRECISE LOCATION OF PERMEABLE FORMATIONS AND

POREUSESPOROUS

A ce jour, la détermination des couches aquifères de faible profondeur sont déterminées en général par un "sourcier" et d'ailleurs celui-ci ne donne qu'approximativement le "toit" de la formation aquifère.  To date, the determination of the shallow aquifer layers are generally determined by a "dowser" and moreover this only gives approximately the "roof" of the aquifer formation.

Le système décrit ci-dessus est un procédé scientifique de détermination et la localisation précise des couches 10 poreuses et perméables réalisées dans un forage à l'aide d'une boue conductrice d'une densité supérieure à 1 - une électrode est descendue dans le forage au moyen d'un fil conducteur isolé, celui-ci est relié en surface à un galvanomètre dont la deuxième borne est reliée à la terre, 15 l'électrode est remontée lentement et les variations du galvanomètre enregistrées - les variations du galvanomètre entre les couches poreuses et perméables et les couches qui ne le sont pas sont apparentes sur le diagramme obtenu plus haut.  The system described above is a scientific method for determining and precisely locating porous and permeable layers produced in a borehole using a conductive mud with a density greater than 1 - an electrode is lowered into the borehole by means of an insulated conductor wire, this is connected on the surface to a galvanometer, the second terminal of which is connected to earth, the electrode is wound up slowly and the variations in the galvanometer recorded - the variations in the galvanometer between the layers porous and permeable and the layers which are not are apparent on the diagram obtained above.

Les couches poreuses et perméables offrent un potentiel supérieur aux autres formations.  Porous and permeable layers offer greater potential than other formations.

Claims (2)

REVENDICATIONCLAIM 1. Le dispositif pour localiser des couches aquifères caractérisé en ce qu'il comprend un galvanomètre situé en surface dont les deux bornes électriques sont reliées par un fil isolé d'une part à une électrode se déplaçant dans le forage et d'autre part une borne reliée à la terre.  1. The device for locating aquifers, characterized in that it comprises a galvanometer located on the surface, the two electrical terminals of which are connected by an insulated wire on the one hand to an electrode moving in the borehole and on the other hand a terminal connected to earth. 2. Disposition selon la revendication 1, caractérisé en 10 ce que l'électrode est déplacée au moyen d'un treuil d'enroulement du fil isolé afin d'indiquer au moyen du galvanomètre, la position exacte des couches aquifères si elles sont présentes.  2. Arrangement according to claim 1, characterized in that the electrode is moved by means of a winding winch for the insulated wire in order to indicate by means of the galvanometer, the exact position of the aquifer layers if they are present.
FR0303769A 2003-03-27 2003-03-27 Device for locating aquiferous layers comprises galvanometer placed on surface Pending FR2853087A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0303769A FR2853087A1 (en) 2003-03-27 2003-03-27 Device for locating aquiferous layers comprises galvanometer placed on surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0303769A FR2853087A1 (en) 2003-03-27 2003-03-27 Device for locating aquiferous layers comprises galvanometer placed on surface

Publications (1)

Publication Number Publication Date
FR2853087A1 true FR2853087A1 (en) 2004-10-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR0303769A Pending FR2853087A1 (en) 2003-03-27 2003-03-27 Device for locating aquiferous layers comprises galvanometer placed on surface

Country Status (1)

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FR (1) FR2853087A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB497329A (en) * 1936-06-25 1938-12-14 Standard Oil Dev Co Single cable electrical well-logging
GB636075A (en) * 1946-10-29 1950-04-19 Schlumberger Prospection Improvements in well logging systems
US6211678B1 (en) * 1999-06-21 2001-04-03 Halliburton Energy Services, Inc. Method for radial profiling of resistivity at multiple depths of investigation
US6359438B1 (en) * 2000-01-28 2002-03-19 Halliburton Energy Services, Inc. Multi-depth focused resistivity imaging tool for logging while drilling applications

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB497329A (en) * 1936-06-25 1938-12-14 Standard Oil Dev Co Single cable electrical well-logging
GB636075A (en) * 1946-10-29 1950-04-19 Schlumberger Prospection Improvements in well logging systems
US6211678B1 (en) * 1999-06-21 2001-04-03 Halliburton Energy Services, Inc. Method for radial profiling of resistivity at multiple depths of investigation
US6359438B1 (en) * 2000-01-28 2002-03-19 Halliburton Energy Services, Inc. Multi-depth focused resistivity imaging tool for logging while drilling applications

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