Patent SG-11201909901R-A (SG)
Title: Temporary barrier for inflow control device
Inventor: MHASKAR NAUMAN
IPC: E21B43/12
Filed: 2018-04-23
Abstract: 158 117 152 150 154 156 165 170 172 174 X115 112 FIG. 3A 1101 cc O 00 O C (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 15 November 2018 (15.11.2018) WIPO I PCT ill~~~~~~~~ 011101010VIIIOH olo oi olo mo Emu! °nom mil (10) International Publication Number WO 2018/208493 Al (51) International Patent Classification: E21B 43/08 (2006.01) E21B 34/06 (2006.01) E21B 43/12 (2006.01) E21B 34/08 (2006.01) E21B 33/13 (2006.01) (21) International Application Number: PCT/US2018/028946 (22) International Filing Date: 23 April 2018 (23.04.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/593,466 12 May 2017 (12.05.2017) US (71) Applicant: WEATHERFORD TECHNOLOGY HOLDINGS, LLC [US/US]; 2000 St James Place, Hous- ton, Texas 77056 (US). (72) Inventor: MHASKAR, Nauman; 11909 Spencer Road - FM 529, Houston, Texas 77041 (US). (74) Agent: MCDERMOTT, Sean P.; Blank Rome LLP, 717 Texas Ave, Ste 1400, Houston, Texas 77002 (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, JO, 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, (54) Title: TEMPORARY BARRIER FOR INFLOW CONTROL DEVICE (57) : An apparatus (100) for controlling fluid flow in a borehole includes a basepipe (110) and a flow device (130). The basepipe (110) has a through-bore (112) and defines at least one perforation (115). The throughbore (112) conveys the fluid flow, and the at least one perforation (115) communicates the through-bore (112) outside the basepipe (110). The flow device (130) comprises a barrier (150) disposed at the at least one perforation (115). The barrier (150) at least temporarily prevents fluid communication through the at least one perforation (115). The barrier (150) is resistant to a pressure differential thereacross and is dissolvable over time. The barrier (150) can include at least two elements (170, 172, 174) composed of different materials, and an increase in the pressure differential across can further increase how the barrier (150) prevents the fluid communication through the perforation (115). [Continued on next page] WO 2018/208493 Al MIDEDIMOMOIDEIRDERI00101011HOIENOMOVOIS 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(11)) Published: — with international search report (Art. 21(3))