Patent CA-3090956-A1 (CA)
Title: Petroleum reservoir behavior prediction using a proxy flow model
Inventor: MADASU SRINATH
IPC: G06N3/08
Filed: 2018-05-15
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY  (PCT) (19) World Intellectual Property                1 11111 1 111111 11 111111 1 Organization International Bureau                                (10) International Publication Number (43) International Publication Date                   WO 2019/221717 Al 21 November 2019 (21.11.2019) WIPO I PCT (51) International Patent Classification:       RA, Harsh Biren; 410 Avondale Street, Houston, Texas E21B 41/00 (2006.01)     GOON 3/04 (2006.01)    77006 (US). GOON 3/08 (2006.01) (74) Agent: RAJ, Vinu et al.; Haynes and Boone, LLP, 2323 (21) International Application Number:    Victory Avenue, Suite 700, Dallas, TX 75219 (US).   (81) Designated States (unless otherwise indicated, for every (22) International Filing Date:    kind of national protection available): AE, AG, AL, AM, 15 May 2018 (15.05.2018)    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, (25) Filing Language:                     English DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (26) Publication Language:                English    HR, HU, ED, EL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, (71) Applicant: LANDMARK GRAPHICS CORPO-KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG MK, MN, 1VIW, MX, MY MZ NA NG, NI, NO, NZ  RATION [US/US]; 3000 N. Sam Houston Parkway E., OM, , PA, PE, PG, PH, PL, PT,, QA ,, RO ,, RS, RU, RW, SA,, Houston, Texas 77032-3219 (US). SC, SD, SE, SG, SK, SL, SM, ST, SV, sy TH, TJ, TM TN, (72) Inventors: MADASU, Srinath; 11319 Briarforest Drive,    TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. Houston, Texas 77077 (11S). ZAGAYEVSKIY, Yevgeniy; (84) Designated States (unless otherwise indicated, for every 3788 Richmond Ave., Apt. 1362, Houston, Texas 77046 kind of regional protection available): ARIPO (BW, GH, (US). WONG, Terry; 21525 Spring Plaza Drive, Spring, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, Texas 77388 (US). CAMILLERI, Dominic; 20006 Sky UG, ZM ZW), Eurasian (AM AZ, BY, KG, KZ, RU, TJ, Hollow Ln, Katy, Texas T7450 (US). WANG, Charles Hai; TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, 5925 Almed Rd., Unit 11206, Houston, Texas T7004 (US). EE, ES, FL FR, GB, GR, HR, HU, 11E, IS, IT, LT, LU, LV, BECK, Courtney Leeann; 600 Studemont Street 43406, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, Houston, Texas 77007 (US). MAO, Hanzi; 1800 Holleman TR), OAPI (BF, BJ, CF, CG, CI, CM GA, GN, GQ, GW, Dr., Apt. 422, College Station, Texas T7840 (US). DONG, KM, ML, MR, NE, SN, TD, TG). Hui; 3543 Greystone Dr., Austin, Texas 78731 (US). VO-(54) Title: PETROLEUM RESERVOIR BEHAVIOR PREDICTION USING A PROXY FLOW MODEL (57) Abstract: Using production data and a production flow record based on the production . data, a deep neural network (DNN) is trained to model a proxy flow simulation of a reser-voir. The proxy flow simulation of the reservoir is performed, using an ensemble Kalman filter 171:           (EnKF), based on the trained DNN. The EnKF assimilates new data through updating a current .                _ ensemble to obtain history matching by minimizing a difference between a predicted produc-i..,    . tion output from the proxy flow simulation and measured production data from a field. Using the updated current ensemble, a second proxy flow simulation of the reservoir is performed based on the trained DNN. The assimilating and the performing are repeated while new data is available for assimilating. Predicted behavior of the reservoir is determined based on the "*H 71=41 132                         pro flow simulation of the reservoir. An indication of the predicted behavior is provided to . )cc=b7.,."==4;    xy :..!    facilitate production of fluids from the reservoir. ¨ =                  . . ,= te=          . -.0!C    1181,    - =._.28 1i6-"    =   _ 125 "1:;,)    ''`r:3=125 124* FIG. 1 [Continued on next page]     WO 2019/221717 Al I 11111 I 011111 II 111111 0 11111111 0 Ill 1111 I 01110 Ill 0 Ill 0 Ill 11 111 010 I II 11111111111 0 II 1111 Declarations under Rule 4.17: ¨    as to applicant's entitlement to apply for and be granted a patent (Rule 4.1700) Published: ¨    with international search report (Art. 21(3))