Patent SG-11201809663W-A (SG)
Title: Acrylamide-based copolymers, terpolymers, and use as hydrate inhibitors
Inventor: ELANANY MOHAMED
IPC: C09K8/52
Filed: 2017-04-25
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 1#1101111 0 11101 HOE 010 1111 1 0 I HIM OH 0111111111101110 ill OE 1111 Organization International Bureau (10) International Publication Number (43) International Publication Date ......0\" WO 2017/192298 Al 09 November 2017 (09.11.2017) WIP0 I PCT _ (51) (21) (22) (25) Filing Language: (26) (30) (71) International Patent Classification: (71) Applicant (for AG only): ARAMCO SERVICES COM- C08F 220/54 (2006.01) CO9K 8/52 (2006.01) PANY [US/US]; 9009 West Loop South, Houston, Texas International Application Number: 77096 (US). PCT/US2017/029283 (72) Inventors: ELANANY, Mohamed; c/o Saudi Arabian Oil International Filing Date: Company, Post Office Box 5000, Dhahran, 31311 (SA). 25 April 2017 (25.04.2017) MAJNOUNI, Khalid; c/o Saudi Arabian Oil Company, Post Office Box 5000, Dhahran, 31311 (SA). ALESSA, English Rashed; c/o Saudi Arabian Oil Company, Post Office Box Publication Language: English 5000, Dhahran, 31311 (SA). AL-MALKI, Abdullah; c/ o Saudi Arabian Oil Company, Post Office Box 5000, Priority Data: Dhahran, 31311 (SA). AL-DAOUS, Mohammed; c/o Sau- 62/332,771 06 May 2016 (06.05.2016) US di Arabian Oil Company, Post Office Box 5000, Dhahran, 31311 (SA). AL-AJWAD, Hassan; c/o Saudi Arabian Applicants: SAUDI ARABIAN OIL COMPANY Oil Company, Post Office Box 5000, Dhahran, 31311 [SA/SA]; Post Office Box 5000, Dhahran, 31311 (SA). (SA). ASROF ALI, Shaikh; c/o King Fand University of KING FAHD UNIVERSITY OF PETROLEUM & Petrolum & Minterals, P.O. Box 691, Dhahran, 31261 (SA). MINERALS [SA/SA]; Post Office Box 691, Dhahran, ADEL, Shadi; c/o Saudi Arabian Oil Company, Post Of- 31261 (SA). fice Box 5000, Dhahran, 31311 (SA). RITHAUDDEEN, Megat; c/o Saudi Arabian Oil Company, Post Office Box 5000, Dhahran, 31311 (SA). = 0, c:::: , clathrate N General Title: ACRYLAMIDE-BASED COPOLYMERS, R 2 lo (CH 2 -CR 5 ) TERPOLYMERS, AND ( CH I -CR 6 ) v ( CH 2 -CR 7 ) USE C=0 I R 4 ---' ) AS HYDRATE INHIBITORS z (I) FIG. T chosen from C1 to C30 aliphatic groups, R is 4 groups, optionally substituted with one thereof, R R and R are each independently 5 , , 6 7 when y is 0, x is greater than 0, and when x z equals 1. Methods for inhibiting formation of the fluid with at least one copolymer of = (54) = x ' C=0 C=0 I I —N H—N 7 - --- N --- -- I I R 1- R 3 = — = = = more 140 120 E0 : Copolymers having General from divalent C4 to C7 linear aliphatic groups and divalent Ci -C6 linear aliphatic groups, Ci from methyl or hydrogen, x is chosen y is greater than 0, and z is chosen from 0.1 to 0.9. The summation of x, y, and hydrates in a fluid capable of forming Formula (I). , ,RT.C) N TEMPF,APJ ZE ,-- = — = = -10 co ___ ,, = = _ Il GC t :N (57) ei chosen ei cn or --... 7 1 chosen IN is 1-1 1 UM 204 31100 4330 5UD6 3000 ME, MMES Formula (I): (I) in which R R and R 1 , 2 , 3 are C4 to C7 linear heteroaliphatic -C6 branched aliphatic groups, or combination from 0 to 0.8, y is chosen from 0 to 0.8, the clathrate hydrates, including contacting o [Continued on next page] WO 2017/192298 Al IMEDIMOM0101011MMEMOMOICEEHOHMOMEM1011 (74) Agent: O'BRIEN, Hallie W. et al.; Dinsmore & Shohl LLP, One South Main Street, Fifth Third Center, Suite 1300, Dayton, Ohio 45402 (US). (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). Declarations under Rule 4.17: — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(H)) — 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))