SG11201809916SA - High temperature viscoelastic surfactant (ves) fluids comprising nanoparticle viscosity modifiers - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization 111111111111111111111111111111111111111111111111111111111111111111111111111111 International Bureau (10) International Publication Number (43) International Publication Date .....0\"\" WO 2017/196646 Al 16 November 2017 (16.11.2017) WIPO I PCT (51) International Patent Classification: C09K 8/68 (2006.01) E21B 43/26 (2006.01) 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. (21) International Application Number: (84) Designated States (unless otherwise indicated, for every PCT/US2017/031195 kind of regional protection available): ARIPO (BW, GH, (22) International Filing Date: 05 May 2017 (05.05.2017) 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, (25) Filing Language: English EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, (26) Publication Language: English 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, (30) Priority Data: KM, ML, MR, NE, SN, TD, TG). 62/335,377 12 May 2016 (12.05.2016) US Declarations under Rule 4.17: (71) Applicant: SAUDI ARABIAN OIL COMPANY — as to applicant's entitlement to apply for and be granted a [SA/SA]; Post Office Box 5000, Dhahran, 31311 (SA). patent (Rule 4.17(ii)) (71) Applicant (for AG only): ARAMCO SERVICES COM- — as to the applicant's entitlement to claim the priority of the PANY [US/US]; 9009 West Loop South, Houston, Texas earlier application (Rule 4.17(iii)) 77096 (US). Published: _ (72) Inventors: LI, Leiming; c/o Aramco Services Compa- ny, 9009 West Loop South, Houston, Texas 77096 (US). — with international search report (Art. 21(3)) — OZDEN, Sehmus; c/o Aramco Services Company, 9009 = West Loop South, Houston, Texas 77096 (US). AL- MUNTASHERI, Ghaithan A.; c/o Aramco Services Com- = pany, 9009 West Loop South, Houston, Texas 77096 (US). _ LIANG, Feng; c/o Aramco Services Company, 9009 West Loop South, Houston, Texas 77096 (US). Agent: LUNN, Jennifer H. et al.; Dinsmore & Shohl LLP, One South Main Street, Fifth Third Center, Suite 1300, Day- ton, Ohio 45402 (US). = (74) = Designated States (unless otherwise indicated, for every (81) = 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, = Title: HIGH TEMPERATURE VISCOELASTIC SURFACTANT (VES) FLUIDS COMPRISING NANOPARTICLE VISCOSI- = (54) TY MODIFIERS (57) : In accordance with one or more embodiments, this — 0 R2 R4 disclosure describes a viscoelastic fluid for a subterranean for- 1-1 I I Ri N IH -(CH2)k-l\r-(CH2),,-C-(CF12)n-S03 mation comprising: viscoelastic surfactant comprising the general .4 I H formula: (I) where R1 is a saturated or unsaturated hydrocarbon R3 (I) group of from 17 to 29 carbon atoms, and R2 R3, are each inde- 71' pendently selected from a straight chain or branched alkyl or hy- tD droxyalkyl group of from 1 to 6 carbon atoms; R4 is selected from 01 1-1 H, hydroxyl, alkyl or hydroxyalkyl groups of from 1 to 4 carbon atoms; k is an integer of from 2-20; m is an integer of from 1-20; IN 1-1 and n is an integer of from 0-20; brine solution; and at least one 0 nanoparticle viscosity modifier comprising a particle size of 0.1 to ei 500 nanometers, or 0.1 to 100 nanometers. C