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1. (WO2018138452) METHOD, COMPUTER PROGRAM, INFORMATION MEDIUM AND DEVICE FOR THE ANALYSIS OF SEISMIC NOISE
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Pub. No.: WO/2018/138452 International Application No.: PCT/FR2018/050194
Publication Date: 02.08.2018 International Filing Date: 29.01.2018
IPC:
G01V 1/36 (2006.01)
G PHYSICS
01
MEASURING; TESTING
V
GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1
Seismology; Seismic or acoustic prospecting or detecting
28
Processing seismic data, e.g. analysis, for interpretation, for correction
36
Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy
Applicants:
INSTITUT FRANÇAIS DES SCIENCES ET TECHNOLOGIES DES TRANSPORTS, DE L'AMÉNAGEMENT ET DES RÉSEAUX [FR/FR]; Boulevard Isaac Newton 77420 CHAMPS SUR MARNE, FR
Inventors:
LE FEUVRE, Mathieu; FR
JOUBERT, Anaëlle; FR
COTE, Philippe; FR
Agent:
DUFLOS, Bertrand; FR
INTES, Didier; FR
CALVO DE NO, Rodrigo; FR
GILBEY, Vincent; FR
JOANNY, Damien; FR
MILIEN, Jean-Baptiste; FR
URBAIN, Isabelle; FR
VERRUE, Jacques; FR
Priority Data:
175069327.01.2017FR
Title (EN) METHOD, COMPUTER PROGRAM, INFORMATION MEDIUM AND DEVICE FOR THE ANALYSIS OF SEISMIC NOISE
(FR) PROCEDE, PROGRAMME D'ORDINATEUR, SUPPORT D'INFORMATIONS ET DISPOSITIF POUR L'ANALYSE DE BRUIT SISMIQUE
Abstract:
(EN) Method of seismic noise analysis comprising the following steps: A) during each period from among at least two different periods, at least two seismic noise signals are acquired; B) a reconstructed signal is calculated by intercorrelation or by deconvolution of said signals, respectively for each of said periods; C) at least one of the following steps C1 and C2 is carried out: C1) amplitudes of said reconstructed signals (Cj,k) calculated respectively for each of said periods are compared; C2) speed variations of the seismic waves are determined on the basis of said reconstructed signals (Cj,k). Computer program comprising instructions for the implementation of the method, information medium containing the program, and seismic noise analysis device for the implementation of the method.
(FR) Procédé d'analyse de bruit sismique comportant les étapes suivantes : A) pendant chaque période parmi au moins deux périodes différentes, on acquiert au moins deux signaux de bruit sismique; B) on calcule un signal reconstruit par intercorrélation ou par déconvolution desdits signaux, respectivement pour chacune desdites périodes; C) on réalise au moins l'une des étapes C1 et C2 suivantes : C1) on compare des amplitudes desdits signaux reconstruits (Cj,k) calculés respectivement pour chacune desdites périodes; C2) on détermine des variations de vitesse des ondes sismiques à partir desdits signaux reconstruits (Cj,k ). Programme d'ordinateur comportant des instructions pour la mise en œuvre du procédé, support d'informations contenant le programme, et dispositif d'analyse de bruit sismique pour la mise en œuvre du procédé.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)