Patent SG-11201808921U-A (SG)
Title: Estimating an earth seismic response
Inventor: KLUVER TILMAN
IPC: G01V1/48
Filed: 2017-04-19
Abstract: SUBTRACTCONTRIBUTION OF EXTRACTED SIGNALS FROM THE RECEIVER TRACE EXTRACT COHERENT SIGNALS INCLUDING ANGLE INFORMATION FROM THE ESTIMATED EARTH RESPONSE -: • COHERENT SIGNALS IDENTIFIED? YE. DECONVOLUTION OF THE RESIDUAL RECEIVER TRACE BY SPREADING THE RECEIVER SIGNALS ACROSS -541 - SOURCE EMISSION ANGLES ADD THE RESIDUALS TO THE SIGNAL MODEL BY SPREADING THE RESIDUALS ACROSS ANGLES, AND PERFORM A FINAL ANGLE DEPENDENT DECONVOLUTION Fig. 5 546 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 26 October 2017 (26.10.2017) WIPO I PCT on! olollm Hot 01°1E1°1H ono iflovoimIE (10) International Publication Number WO 2017/182518 Al W O 20 17 / 18 25 18 Al (51) International Patent Classification: GO1V 1/48 (2006.01) GO1V 1/37 (2006.01) GO1V 1/36 (2006.01) (21) International Application Number: PCT/EP2017/059281 (22) International Filing Date: 19 April 2017 (19.04.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/324,530 19 April 2016 (19.04.2016) US 15/446,328 01 March 2017 (01.03.2017) US (71) Applicant: PGS GEOPHYSICAL AS [NO/NO]; P.O.BOX 251 Lilleaker, 0216 Oslo (NO). (72) Inventors: KLUVER, Tilman; Lilleakerveien 4 C, 0283 Oslo (NO). HEGNA, Stian; Lilleakerveien 4 C, 0283 Oslo (NO). (74) Agent: GILL JENNINGS & EVERY LLP; The Broadgate Tower, 20 Primrose Street, London EC2A 2ES (GB). (81) Designated States (unless otherwise indicated, for every kind of national protection available): 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. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). = (54) Title: ESTIMATING AN EARTH SEISMIC RESPONSE (57) : Estimating an earthresponsecan includedeconvolving a mul- 542 ti-dimensional source wavefieldfrom near-continuously recorded seismic data recorded ata receiver position. The deconvolving can include spreading the near- INITIAL DECONVOLUTION SPREADNG RECEIVER SIGNALS L 3 continuously recorded seismic dataacross a plurality ofpossible source emission ACROSS SOURCE EMISSION ANGLES I angles. The result of the deconvolution can bethe earth response estimate. [Continued on next page] WO 2017/182518 Al MIDEDIM01101 DIDIRMEM0ME10111011111011111111111111111 Published: with international search report (Art. 21(3)) before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h))