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1. (WO2017149418) SOURCE SEPARATION METHOD
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Pub. No.: WO/2017/149418 International Application No.: PCT/IB2017/051061
Publication Date: 08.09.2017 International Filing Date: 24.02.2017
IPC:
G01V 1/32 (2006.01) ,G01V 1/36 (2006.01) ,G01V 1/04 (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
32
Transforming one recording into another
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
G PHYSICS
01
MEASURING; TESTING
V
GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1
Seismology; Seismic or acoustic prospecting or detecting
02
Generating seismic energy
04
Details
Applicants:
SEISMIC APPARITION GMBH [CH/CH]; Weinbergstrasse 31 8006 Zurich, CH
Inventors:
VAN MANEN, Dirk-Jan; CH
ANDERSSON, Fredrik; SE
ROBERTSSON, Johan; CH
EGGENBERGER, Kurt; CH
Agent:
EGGENBERGER, Kurt; CH
Priority Data:
1603742.604.03.2016GB
1619034.010.11.2016GB
Title (EN) SOURCE SEPARATION METHOD
(FR) PROCÉDÉ DE SÉPARATION DE SOURCES
Abstract:
(EN) A method is described for separating the unknown contributions of two or more sources from a commonly acquired wavefield including the determination of a wavenumber dependent model which reconstructs the wavefield of the sources independently, below a frequency set by the slowest physical propagation velocity and applying an inversion based on the model, to the commonly acquired wavefield to separate the contributions.
(FR) La présente invention concerne un procédé permettant de séparer les contributions inconnues de deux ou plus de deux sources à partir d'un champ d'ondes acquis de manière classique, le procédé comprenant la détermination d'un modèle dépendant d'un nombre d'onde pouvant reconstruire le champ d'ondes des sources indépendamment, au-dessous d'une fréquence définie par la vitesse de propagation physique la plus lente, et l'application d'une inversion, sur la base du modèle, au champ d'onde acquis de manière classique pour séparer les contributions.
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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, 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: English (EN)
Filing Language: English (EN)