Patent SG-11201808272Q-A (SG)
Title: Determining displacement between seismic images using optical flow
Inventor: ZHANG QIE
IPC: G01V1/30
Filed: 2017-03-22
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 11111111111M 01110111111111110101111101110101110101111101111111111111111110111111 International Bureau 0.. .... .. ...... ... (10) International Publication Number (43) International Publication Date WO 2017/172435 Al 5 October 2017 (05.10.2017) IN I PO I P CT (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every GO1V 1/30 (2006.01) kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, (21) International Application Number: BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, PCT/US2017/023536 DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, (22) International Filing Date: HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, 22 March 2017 (22.03.2017) KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, (25) Filing Language: English NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, (26) Publication Language: English 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, (30) Priority Data: ZA, ZM, ZW. 62/316,414 31 March 2016 (31.03.2016) US (84) Designated States (unless otherwise indicated, for every (71) Applicant: BP CORPORATION NORTH AMERICA kind of regional protection available): ARIPO (BW, GH, INC. [US/US]; 501 Westlake Park Boulevard, Houston, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TX 77079 (US). TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (72) Inventors: ZHANG, Qie; 150 W. Warrenville Road, MC TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, 200-1W, Naperville, IL 60563 (US). DU, Bosen; 150 W. DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, Warrenville Road, MC 200-1W, Naperville, IL 60563 LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, (US) SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Agent: REED, KaRan; BP American INC., 150 W. War (74) - Published: renville Road, MC 200-1W, Naperville, Illinois 60563 (US). — with international search report (Art. 21(3)) Il ir) M 1 1' IN ei (54) Title: DETERMINING DISPLACEMENT BETWEEN SEISMIC IMAGES USING OPTICAL FLOW 1-1 ---- (57) : A method for determining a displacement seismic image between two seismic images may begin with receiving a first ., seismic image and a second seismic image. The method may then include generating a first scaled image based on the first seismic :::;) image and a second scaled image based on the second seismic image and determining a scaled displacement volume between the two ei scaled images using an optical flow algorithm. The method may then involve calculating a displacement volume based on the scaled 0 displacement volume and a scaling function used to generate the scaled images. The method may then generate a third seismic image by applying the displacement volume to the second seismic image. The method may then involve determining the difference volume between the first seismic image and the third seismic image.