FR2442455A1 - Electrodynamic transverse wave generator - verifies rock structure of projected power station building site using coils within cylinder alternately receiving current - Google Patents

Electrodynamic transverse wave generator - verifies rock structure of projected power station building site using coils within cylinder alternately receiving current

Info

Publication number
FR2442455A1
FR2442455A1 FR7832936A FR7832936A FR2442455A1 FR 2442455 A1 FR2442455 A1 FR 2442455A1 FR 7832936 A FR7832936 A FR 7832936A FR 7832936 A FR7832936 A FR 7832936A FR 2442455 A1 FR2442455 A1 FR 2442455A1
Authority
FR
France
Prior art keywords
coils
cylinder
electrodynamic
verifies
power station
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
FR7832936A
Other languages
French (fr)
Other versions
FR2442455B1 (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.)
Ismes SpA
Original Assignee
Ismes SpA
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 Ismes SpA filed Critical Ismes SpA
Priority to FR7832936A priority Critical patent/FR2442455A1/en
Publication of FR2442455A1 publication Critical patent/FR2442455A1/en
Application granted granted Critical
Publication of FR2442455B1 publication Critical patent/FR2442455B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/02—Generating seismic energy
    • G01V1/04—Details
    • G01V1/047—Arrangements for coupling the generator to the ground
    • G01V1/053—Arrangements for coupling the generator to the ground for generating transverse waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/02—Generating seismic energy
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/40—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
    • G01V1/42—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging using generators in one well and receivers elsewhere or vice versa

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

The generator has a cylinder, which can be held via releasable pins at various heights within a bore in the ground. A second cylinder, contg. two vertically spaced electrical coils (14, 15) can be pressed against the upper end of the first cylinder (4), with a high intensity pulse current alternately supplied to both coils. This causes magnetic recoil at opposite ends of the second cylinder with the axial movement of the two cylinders being monitored. Pref. both coils are wound on an insulating core, each of which can slide within the second cylinder and which are resiliently pressed against the opposite ends of this cylinder. The control unit (24) for supplying the currents to the two coils pref. uses capacitive discharge (20, 23).
FR7832936A 1978-11-22 1978-11-22 Electrodynamic transverse wave generator - verifies rock structure of projected power station building site using coils within cylinder alternately receiving current Granted FR2442455A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7832936A FR2442455A1 (en) 1978-11-22 1978-11-22 Electrodynamic transverse wave generator - verifies rock structure of projected power station building site using coils within cylinder alternately receiving current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7832936A FR2442455A1 (en) 1978-11-22 1978-11-22 Electrodynamic transverse wave generator - verifies rock structure of projected power station building site using coils within cylinder alternately receiving current

Publications (2)

Publication Number Publication Date
FR2442455A1 true FR2442455A1 (en) 1980-06-20
FR2442455B1 FR2442455B1 (en) 1981-05-29

Family

ID=9215191

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7832936A Granted FR2442455A1 (en) 1978-11-22 1978-11-22 Electrodynamic transverse wave generator - verifies rock structure of projected power station building site using coils within cylinder alternately receiving current

Country Status (1)

Country Link
FR (1) FR2442455A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558601A1 (en) * 1984-01-23 1985-07-26 Inst Francais Du Petrole DEVICE FOR GENERATING ACOUSTIC PULSES IN A WELL, BY PERCUSSION
EP0224635A2 (en) * 1985-11-28 1987-06-10 GSF-Forschungszentrum für Umwelt und Gesundheit GmbH Arrangement for sounding a rock formation
EP0263148A1 (en) * 1986-03-18 1988-04-13 Chevron Res Downhole electromagnetic seismic source.
DE102008050771A1 (en) * 2008-10-08 2010-04-29 Geotomographie Gmbh Seismic waves generation in bore hole by using electromagnetic transducers, involves pressing bore hole wall by using pneumatic, hydraulic or pressure devices

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1366519A (en) * 1963-08-20 1964-07-10 Edgerton Germeshausen & Grier Advanced sound production system and apparatus
US4038631A (en) * 1975-11-07 1977-07-26 Murphy Vincent J Method for generating and detecting seismic shear wave energy in the earth

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1366519A (en) * 1963-08-20 1964-07-10 Edgerton Germeshausen & Grier Advanced sound production system and apparatus
US4038631A (en) * 1975-11-07 1977-07-26 Murphy Vincent J Method for generating and detecting seismic shear wave energy in the earth

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558601A1 (en) * 1984-01-23 1985-07-26 Inst Francais Du Petrole DEVICE FOR GENERATING ACOUSTIC PULSES IN A WELL, BY PERCUSSION
EP0151060A2 (en) * 1984-01-23 1985-08-07 Institut Français du Pétrole Device for generating, by percussion, acoustic impulses inside a borehole
EP0151060A3 (en) * 1984-01-23 1985-08-28 Institut Francais Du Petrole Device for generating, by percussion, acoustic impulses inside a borehole
US4648478A (en) * 1984-01-23 1987-03-10 Institut Francais Du Petrol Device for generating sound pulses inside a well, by percussion
EP0224635A2 (en) * 1985-11-28 1987-06-10 GSF-Forschungszentrum für Umwelt und Gesundheit GmbH Arrangement for sounding a rock formation
EP0224635A3 (en) * 1985-11-28 1989-03-29 Gesellschaft Fur Strahlen- Und Umweltforschung M.B.H. Arrangement for sounding a rock formation
EP0263148A1 (en) * 1986-03-18 1988-04-13 Chevron Res Downhole electromagnetic seismic source.
EP0263148A4 (en) * 1986-03-18 1988-07-27 Chevron Res Downhole electromagnetic seismic source.
DE102008050771A1 (en) * 2008-10-08 2010-04-29 Geotomographie Gmbh Seismic waves generation in bore hole by using electromagnetic transducers, involves pressing bore hole wall by using pneumatic, hydraulic or pressure devices

Also Published As

Publication number Publication date
FR2442455B1 (en) 1981-05-29

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Legal Events

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