Patent SG-11201808851P-A (SG)
Title: Depth compensated actuator and use of same in association with a transportable heave compensator
Inventor: MARTINSEN TORD B
IPC: E21B19/02
Filed: 2017-05-08
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 1111111111111111111111111111111111111111111111111111111111111111111111111111111 Organization International Bureau (10) International Publication Number (43) International Publication Date .....0\"\" WO 2017/196181 Al 16 November 2017 (16.11.2017) WIPO I PCT (51) International Patent Classification: (72) Inventors: MARTINSEN, Tord B.; Strandgata 20, E21B 19/02 (2006.01) B66C 13/04 (2006.01) N-3725 Skien (NO). BERG, Andre Skare; Stigerasen 39 (21) International Application Number: C, N-3726 Skien (NO). PCT/N02017/050111 (74) Agent: ACAPO AS; P .0.Box 1880 Nordnes, N-5817 Bergen (NO). (22) International Filing Date: 08 May 2017 (08.05.2017) (81) Designated States (unless otherwise indicated, for every (25) Filing Language: English kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (26) Publication Language: English CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, (30) Priority Data: DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, 20160773 08 May 2016 (08.05.2016) NO HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, 20161135 07 July 2016 (07.07.2016) NO KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, 20162010 17 December 2016 (17.12.2016) NO 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, (71) Applicant: SAFELINK AS [NO/NO]; Telemarksgata 11, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, N-3752 Skien (NO). TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. — (54) Title: DEPTH COMPENSATED ACTUATOR AND USE OF SAME IN ASSOCIATION WITH A TRANSPORTABLE HEAVE COMPENSATOR = 44 37 i 17 = .. _ 1 1 i 45 1 14 = V11 Nap 9 5 = = iE 20 —4 V12 = = I I = F91# 41 10 —+ 40 11 —4 2 21 ii L V5 = = V9 = = = 38 43 — = 42 e L._ 4-- 13 23 0 4— 14 1-1 1-1 0C (57) : The publication relates to a depth compensated actuator (0), for a transportable inline depth compensated heave com- pensator for subsea lifting operations. The actuator (1,10) comprises a cylinder shaped body (1 1) and a piston (12) with a piston rod ,C> (3, 13), the piston rod being intended for exposure to external water pressure, a first and second connection means (14) associated CN with the actuator. Further, the actuator comprises a depth compensator (20) comprising a cylinder, a piston and a piston rod, the end 1-1 ---- of which being exposed to surrounding water; and conduit means (17) between at least one volume in the actuator and one volume in I N the depth compensator. The pistons and piston rods are shaped as any of: hollow piston rod, ring shaped piston, ring piston rod. The 1-1 c;;;;) depth compensated actuator solves the problem if improving depth compensation performance regarding size, weight, required fluid ei consumption, internal/inherent friction and adaptability. Further, use of a depth compensated actuator is claimed. C [Continued on next page] WO 2017/196181 Al MIDEDIMOMOIDEIROIDEMOMOHE1111111111111111111111111111111 (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))