Patent SG-11201804248Y-A (SG)
Title: Subsurface safety valve
Inventor: FOONG ZHE CONG
IPC: F16K17/00
Filed: 2015-12-15
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -' Organization International Bureau (43) International Publication Date .... ....r .„,„1 22 June 2017(22.06.2017) WIPO I PCT (10) WO International 1111111111113111111111111111111111111111111111111111111111111111111111111111111111111111 2017/105341 Publication Number Al (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every E21B 34/06 (2006.01) F16K 17/00 (2006.01) kind of national protection available): AE, AG, AL, AM, E21B 21/10 (2006.01) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, (21) International Application Number: DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, PCT/SG2015/050493 HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, (22) International Filing Date: KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, 15 December 2015 (15.12.2015) 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, (25) Filing Language: English SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, (26) Publication Language: English TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (71) Applicant: ENECAL PTE. LTD [SG/SG]; 78 Tuas South (84) Designated States (unless otherwise indicated, for every Street 5, Singapore 637810 (SG). kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, (72) Inventors: FOONG, Zhe Cong; 124 Geylang East Avenue TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, 1, #07-51, Singapore 380124 (SG). MAGNUSON, Cory; TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, 27A West Coast Park, Botannia, Singapore 127723 (SG). DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, KONG, Jiaqi; Blk 624 Jurong West St 61, #03-147, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, Singapore 640624 (SG). SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). (74) Agent CHINA SINDA INTELLECTUAL PROPERTY PTE LTD; 133 Cecil Street, #12-01A, Keck Seng Tower, Singapore 069535 (SG). [Continued on next page] Title: (54) SUBSURFACE SAFETY VALVE : A includes housing flow tube (57) subsurface safety valve a and a disposed in the 5 housing. The flow tube is movable relative to the housing. A flapper is moveably coupled to the flow tube. An actuator end is coupled 1 51 to the flow tube to provide a first force. A first magnetic member is coupled to the housing. A second magnetic member is coupled to the flow tube. After the is the first force the flow tube to the actuator end activated, acts on move flow tube to a first position following which the flapper is moved to an open 11 13A 10 to allow a fluid to the flow tube. When the actuator is position enter end deactivated, a second force between the first and second magnetic elements F12 Fll moves the flow tube to a second position following which the flapper is moved to a close position to cover the flow tube. 103 N 13 S FIG. 5D 11111111 rmi 1 71 17 . 0 1 - 1 IN 1 - 1 0 ei O WO 2017/105341 Al IMEDIMOMMERMEMOMME1011100111110EMOMMIE Published: — with international search report (Art. 21(3))