Patent SG-11201803969Q-A (SG)
Title: Subsurface safety valve with permanent lock open feature
Inventor: WILLIAMSON JIMMIE ROBERT
IPC: F16K1/18
Filed: 2016-03-11
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -' Organization International Bureau ristspi id (43) International Publication Date .... .....r ,„„0 14 September 2017 (14.09.2017) WIP0 I PCT ID Hit (10) WO 1111111111111111111111IIII International II III 2017/155549 III H H Publication Ell Number Al 1111111111MIIIIIII IIIIIIII (51) International Patent Classification: DO, DZ, EC, EE, EG, E21B 34/06 (2006.01) F16K 1/18 (2006.01) HN, HR, HU, ID, IL, IN, E21B 17/00 (2006.01) KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, (21) International Application Number: PA, PE, PG, PH, PL, PT, PCT/US2016/022153 SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, (22) International Filing Date: TR, TT, TZ, UA, UG, US, 11 March 2016 (11.03.2016) (84) Designated States (unless (25) Filing Language: English kind of regional protection GM, KE, LR, LS, MW, (26) Publication Language: English TZ, UG, ZM, ZW), Eurasian (71) Applicant: HALLIBURTON ENERGY SERVICES, TJ, TM), European (AL, INC. [US/US]; 3000 N. Sam Houston Parkway E., Hous- DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, ton, Texas 77032-3219 (US). LV, MC, MK, MT, NL, SM, TR), OAPI (BF, BJ, (72) Inventor: WILLIAMSON, Jimmie Robert; 1421 Flowers GW, KM, ML, MR, NE, ES, FI, GB, GD, GE, GH, GM, GT, IR, IS, JP, KE, KG, KN, KP, KR, MZ, NA, NG, NI, NO, NZ, OM, QA, RO, RS, RU, RW, SA, SC, UZ, VC, VN, ZA, ZM, ZW. otherwise indicated, for every available): ARIPO (BW, GH, MZ, NA, RW, SD, SL, ST, SZ, (AM, AZ, BY, KG, KZ, RU, AT, BE, BG, CH, CY, CZ, DE, NO, PL, PT, RO, RS, SE, SI, SK, CF, CG, CI, CM, GA, GN, GQ, SN, TD, TG). Drive, Carrollton, Texas 75007 (US). Declarations under Rule 4.17: (74) Agents: KAISER, Iona et al.; McDermott Will & Emery as to appl i cant's ent i tlement LLP, 500 North Capitol Street, N.W., Washington, District patent (Rule 4.170) of Columbia 20001 (US). Published: to apply for and be granted a (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, — with international search report (Art 21(3)) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, (54) Title: SUBSURFACE SAFETY VALVE WITH PERMANENT LOCK OPEN FEATURE 112-Th 208 213 204a 112 2A-2C 4- 202 210 212 C / / - '‘ Ic 2 : 11 .4t Cr\ it 2 06 = .=. o c= 1 o e e .... kin /// 1 / 2 1/// / ifS// -. - in 2A-2C 4- in END 1-1 ---- (57) : A well system includes IN m • g a housing that defines a central c:::, closed and open positions. A flow 214 VIEW FIG.2A a tubing string and a subsurface safety valve interconnected flow passageway and includes a flapper pivotable within the tube is positioned within the central flow passageway and engageable with the tubing string and includ - central flow passageway between with the flapper to move the el flapper to the open position. An actuation piston is operatively coupled to the flow tube, a balance piston is operatively coupled to 0 the flow tube, and a lock-open piston is engageable with an actuator sleeve operatively coupled to the flow tube. A lock-open tool is positionable within the central flow passageway to convey hydraulic pressure into a lock-open piston bore and thereby actuate the lock-open piston to an actuated position that moves the flow tube and permanently locks the flapper in the open position.