SG11201806163XA - Method to delay swelling of a packer by incorporating dissolvable metal shroud - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 11111111011110111010101111101011111011101111011011101110111101111101111011111 International Bureau ... ...... ..... ...,/ (10) International Publication Number (43) International Publication Date WO 2017/151118 Al 8 September 2017 (08.09.2017) WIPOI P C T (51) International Patent Classification: BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, E21B 33/12 (2006.01) E21B 23/06 (2006.01) DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, E21B 33/127 (2006.01) HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, (21) International Application Number: MK, MN, MW, MX, MY, MZ, NA, NG, NI NO, NZ, OM, PCT/US2016/020250 PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, (22) International Filing Date: SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, 1 March 2016 (01.03.2016) TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (25) Filing Language: English (8 4 ) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (26) Publication Language: English GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, (71) Applicant: HALLIBURTON ENERGY SERVICES, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, INC. [US/US]; 3000 N. Sam Houston Parkway E., Hous- TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, ton, TX 77032 (US). 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, (72) Inventors: STEIN, Taylor, Justin; 26231 Hudson Falls SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, Lane, Katy, TX 77494 (US). ADKINS, Darrell; 5108 Bri- GW, KM, ML, MR, NE, SN, TD, TG). argrove, Dallas, TX 75287 (US). Declarations under Rule 4.17: (74) Agents: BORLAND, Harold, A. et al.; Haynes and of inventorship (Rule 4.17(N)) Boone, LLP, 2323 Victory Avenue, Suite 700, Dallas, TX _ 75219 (US). Published: (81) Designated States (unless otherwise indicated, for every — with international search report (Art. 21(3)) = kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, = = = = = = = = Title: METHOD TO DELAY SWELLING OF A PACKER BY INCORPORATING DISSOLVABLE METAL SHROUD (54) = 102 /100 104 106 108 ) 108 — .1& 1L. eL 1 -S‘ 116 Il 112 PrOMMIAlltirifileir All.'\"WeW - 116 , \ N a aM I 1 WR a 4\ i . NNWVN, Il 118 118 FIG.2A 1-1 ir) Il L ---- (57) : Swellable packer assemblies, and associated systems and methods are described for operation in connection with a ::::; subterranean wellbore. The swellable packer assemblies may include a shroud for maintaining a sealing element in a fully inactivated ei configuration until the packer assemblies reach a predetermined location in the wellbore. The shroud may be formed of a dissolvable O metal material such that fluids in the wellbore may remove the shroud, and thereafter the sealing element may be rapidly expanded ,-t by exposure to fluids in the wellbore or by exposure to a trigger fluid pumped from the a surface location. The expanded sealing ele- ment may establish a seal with an outer tubular structure to isolate adjacent portions of the wellbore.