FR2458083A1 - Generation system for directional seismic vibrations - is produced by vertical and horizontal spacing and alignment of explosive charges - Google Patents

Generation system for directional seismic vibrations - is produced by vertical and horizontal spacing and alignment of explosive charges

Info

Publication number
FR2458083A1
FR2458083A1 FR7913602A FR7913602A FR2458083A1 FR 2458083 A1 FR2458083 A1 FR 2458083A1 FR 7913602 A FR7913602 A FR 7913602A FR 7913602 A FR7913602 A FR 7913602A FR 2458083 A1 FR2458083 A1 FR 2458083A1
Authority
FR
France
Prior art keywords
explosions
lobe
seismic
alignment
produced
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
FR7913602A
Other languages
French (fr)
Other versions
FR2458083B1 (en
Inventor
Robert Garotta
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.)
CGG SA
Original Assignee
Compagnie Generale de Geophysique SA
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 Compagnie Generale de Geophysique SA filed Critical Compagnie Generale de Geophysique SA
Priority to FR7913602A priority Critical patent/FR2458083A1/en
Publication of FR2458083A1 publication Critical patent/FR2458083A1/en
Application granted granted Critical
Publication of FR2458083B1 publication Critical patent/FR2458083B1/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
    • G01V1/003—Seismic data acquisition in general, e.g. survey design

Abstract

Seismic vibrations in the ground are generated from shocks resulting from explosions. The waves propagate to be reflected and refracted. Grouping of the explosions produces a directional lobe for use in conjunction with time shifting of the received signals. A seismic shockwave station comprises several shock wave sources (10) distributed over several metres on the ground surface in order to obtain a directional transmission lobe (L1). This is augmented by vertically aligning the explosions which are ignited as reqd. with appropriate delays. A receiving station comprises several seismic receivers (12) with signal processing circuits. These are distributed over the ground surface to maximise lobe (L2) gain in a partic. direction. Time shifting of the received signals permits modification to the received signal direction.
FR7913602A 1979-05-29 1979-05-29 Generation system for directional seismic vibrations - is produced by vertical and horizontal spacing and alignment of explosive charges Granted FR2458083A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7913602A FR2458083A1 (en) 1979-05-29 1979-05-29 Generation system for directional seismic vibrations - is produced by vertical and horizontal spacing and alignment of explosive charges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7913602A FR2458083A1 (en) 1979-05-29 1979-05-29 Generation system for directional seismic vibrations - is produced by vertical and horizontal spacing and alignment of explosive charges

Publications (2)

Publication Number Publication Date
FR2458083A1 true FR2458083A1 (en) 1980-12-26
FR2458083B1 FR2458083B1 (en) 1984-04-13

Family

ID=9225951

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7913602A Granted FR2458083A1 (en) 1979-05-29 1979-05-29 Generation system for directional seismic vibrations - is produced by vertical and horizontal spacing and alignment of explosive charges

Country Status (1)

Country Link
FR (1) FR2458083A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472334A (en) * 1968-03-26 1969-10-14 Gulf General Atomic Inc Seismic prospecting
DE2605711A1 (en) * 1976-02-13 1977-08-25 Ruhrkohle Ag Acoustic transmitter:receiver system for seismic exploration - provides continuous alignment of transmitter and receiver response lobes
FR2379075A1 (en) * 1977-01-28 1978-08-25 Inst Francais Du Petrole SEISMIC PROSPECTION METHOD ALLOWING THE DETERMINATION OF THE LATERAL DANGER OF UNDERGROUND LAYERS AND DEVICE FOR ITS IMPLEMENTATION

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472334A (en) * 1968-03-26 1969-10-14 Gulf General Atomic Inc Seismic prospecting
DE2605711A1 (en) * 1976-02-13 1977-08-25 Ruhrkohle Ag Acoustic transmitter:receiver system for seismic exploration - provides continuous alignment of transmitter and receiver response lobes
FR2379075A1 (en) * 1977-01-28 1978-08-25 Inst Francais Du Petrole SEISMIC PROSPECTION METHOD ALLOWING THE DETERMINATION OF THE LATERAL DANGER OF UNDERGROUND LAYERS AND DEVICE FOR ITS IMPLEMENTATION

Also Published As

Publication number Publication date
FR2458083B1 (en) 1984-04-13

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