SG11201809800TA - Succinimide-based copolymers and use as hydrate inhibitors - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 11111 IOU 0 11101 010 11111 010 1111 1 0 I 01111101 010 11111 011 00 1111011110111111 Organization International Bureau (10) International Publication Number (43) International Publication Date ......0\" WO 2017/192433 Al 09 November 2017 (09.11.2017) W I PO I PCT (51) International Patent Classification: (72) Inventors: ELANANY, Mohamed; c/o Saudi Arabian Oil C08G 73/10 (2006.01) BOlD 47/00 (2006.01) Company, Post Office Box 5000, Dhahran, 31311 (SA). (21) International Application Number: MAJNOUNI, Khalid; c/o Saudi Arabian Oil Company, PCT/US2017/030373 Post Office Box 5000, Dhahran, 31311 (SA). ALESSA, Rashed; c/o Saudi Arabian Oil Company, Post Office Box (22) International Filing Date: 5000, Dhahran, 31311 (SA). AL-MALKI, Abdullah; c/ 01 May 2017 (01.05.2017) o Saudi Arabian Oil Company, Post Office Box 5000, Dhahran, 31311 (SA). AL-AJWAD, Hassan; c/o Saudi (25) Filing Language: English Arabian Oil Company, Post Office Box 5000, Dhahran, (26) Publication Language: English 31311 (SA). AL-DAOUS, Mohammed; c/o Saudi Arabian Oil Company, Post Office Box 5000, Dhahran, 31311 (SA). (30) Priority Data: ALI, Shaikh Asrof; c/o King Fand University of Petroleum 62/332,768 06 May 2016 (06.05.2016) US and Minerals, KFUPM-553, Dhahran, 31261 (SA). (71) Applicants: SAUDI ARABIAN OIL COMPANY (74) Agent: O'BRIEN, Hallie W. et al.; Dinsmore & Shohl [SA/SA]; Post Office Box 5000, Dhahran, 31311 (SA). LLP, Fifth Third Center, One South Main Street, Suite 1300, KING FAHD UNIVERSITY OF PETROLEUM AND Dayton, Ohio 45402 (US). MINERALS [SA/SA]; Post Office Box 691, Dhahran, 31261 (SA). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (71) Applicant (for AG only): ARAMCO SERVICES COM- AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, PANY [US/US]; 9009 West Loop South, Houston, Texas — CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 77210-4535 (US). 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, = (54) Title: SUCCINIMIDE-BASED COPOLYMERS AND USE AS HYDRATE INHIBITORS = = 80 - _ = — — — KHI-5 SP,C-4 --- KH!-6 , SBC-1 — KHI T'SBC 2 -- KH'-3 ;'SBC-3 --- CON COL RC TEMP - 30 25 = 70 = — ____ • - 20 p LU = 60- --- -------- 11 1 0 -15 fi L.L1 ce a_ ,,maij --,,, 1 ,, - .0 11-=!, -`, = = AA 50 - = - = - = 40 i 0 61 04 BB N _.., H .., (\"-- N 0 \--- R 1---) y 0 FIG. Il en en (57) : Copolymers 7r C7 heteroaliphatic el c:N N, and S, or combinations Il --.... chosen from 0, N, IN and y is a molar fraction Il © of clathrate hydrates N copolymer of General (I) 1000 2000 3000 4000 5 TIME: MINUTES AA PRESSION, BAR BB TEMPS, MINUTES having General Formula (I): in which R1 is chosen from divalent C4-C7 aliphatic groups and divalent C4- groups, optionally substituted with one or more C1-C6 aliphatic groups, heteroatoms independently chosen from 0, thereof, where: the divalent C4-C7 heteroaliphatic groups include one or two heteroatoms independently and S, and the maximum number of heteroatoms in R1 is two; x is a molar fraction range chosen from 0.05 to 0.95; range chosen from 0.05 to 0.95, where the summation of x and y equals 1. Methods for inhibiting formation in a fluid capable of forming the clathrate hydrates. The methods include contacting the fluid with at least one Formula (I) under conditions suitable for forming the clathrate hydrates. C [Continued on next page] WO 2017/192433 Al IMEDIMOM0101011MMEMOMOHEIHOHNOMOVOIMIE 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). Declarations under Rule 4.17: — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(ii)) — as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) 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))