Patent SG-11201810698S-A (SG)
Title: Methods for assessing the reliability of hydraulically-actuated devices and related systems
Inventor: LEACH ANDREW
IPC: F15B1/033
Filed: 2017-05-31
Abstract: 10 14 — 22 ,, r \ 1 .cu 34 i. 30 38 - (-- 30a 30b 106 FIG. 1 cc O O N O C (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 07 December 2017 (07.12.2017) WIP0 I PCT omit IIl Hot o iflo oimIE (10) International Publication Number WO 2017/210308 Al (51) International Patent Classification: F15B 19/00 (2006.01) E21B 33/064 (2006.01) E21B 33/035 (2006.01) E21B 34/16 (2006.01) E21B 33/06 (2006.01) F15B 1/033 (2006.01) (21) International Application Number: PCT/US2017/035234 (22) International Filing Date: 31 May 2017 (31.05.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/343,446 31 May 2016 (31.05.2016) US (71) Applicant (for all designated States except US): TRANSO- CEAN INNOVATION LABS LTD; 70 Harbour Drive, 4th Floor, George Town, KY1-1003 (KY). (72) Inventors; and (71) Applicants (for US only): LEACH, Andrew [US/US]; c/ o Transocean Innovation Labs Ltd, 70 Harbour Drive, 4th Floor, George Town, KY1-1003 (KY). PEREIRA, Luis, Rafael [VE/US]; c/o Transocean Innovation Labs Ltd, 70 Harbour Drive, 4th Floor, George Town, KY1-1003 (KY). BOIKE, Matthew [US/US]; c/o Transocean Innovation Labs Ltd, 70 Harbour Drive, 4th Floor, George Town, KY1-1003 (KY). (74) Agent: ALBRIGHT, Jeremy B.; Norton Rose Fulbright US LLP, 98 San Jacinto Blvd., Suite 1100, Austin, TX 78701 (US). (54) Title: METHODS FOR ASSESSING THE RELIABILITY OF HYDRAULICALLY-ACTUATED DEVICES AND RELATED SYSTEMS (57) : This disclosure includes methods for testing hydraulically-actuated devices and related systems. Some hydraulically-ac- tuated devices have a housing defining an interior volume and a piston disposed within the interior volume and dividing the interior volume into a first chamber and a second chamber, where the piston is movable relative to the housing between a maximum first position and a maximum second position in response to pressure differentials between the first and second chambers. Some methods include: (1) moving the piston to the first position by varying pressure within at least one of the first and second chambers such that pressure within the second chamber is higher than pressure within the first chamber; and (2) while the piston remains in the first position: (a) reducing pressure within the second chamber and/or increasing pressure within the first chamber; and (b) increasing pressure within the second chamber and/or decreasing pressure within the first chamber. [Continued on next page] WO 2017/210308 Al MIDEDIMOMOIDEIRMEM0011010111100MOMEMON (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, 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, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))