Patent SG-11201408747V-A (SG)
Title: Top-tensioned riser system
Inventor: OTTEN JEFFREY DOULGAS
IPC: E21B7/12
Filed: 2013-07-03
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 9 January 2014 (09.01.2014) WIPOIPCT (10) International Publication Number WO 2014/008367 A3 (51) International Patent Classification: E21B 7/12 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: (30) Priority Data: 61/667,549 61/679,303 3 July 2012 (03.07.2012) 3 August 2012 (03.08.2012) (71) Applicant: SEAHORSE EQUIPMENT CORP [US/US]; 1255 Enclave Parkway, Suite 600, Houston, TX 77077 (US). (72) Inventors: OTTEN, Jeffrey, Doulgas; 13114 Chriswood Dr., Cypress, TX 77429 (US). CAO, Peimin; 5827 Brook Bend Dr., Sugarland, TX 77479 (US). (74) Agent: KEIRS, Christopher, D.; WONG, CABELLO, LUTSCH, RUTHERFORD & BRUCCULERI LLP, 20333 Tomball Parkway, Suite 600, Houston, TX 77070 (US). PCT/US2013/049271 (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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, 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. 3 July 2013 (03.07.2013) English English US US (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, 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, [Continued on next page] (54) Title: TOP-TENSIONED RISER SYSTEM 26- i> m oo o (57) Abstract: A top-tensioned riser (TTR) supported is by a tensioning system on the deck of floating a platform. The tension ring may include an elastomeric layer which permits small angular and lateral displacements of the tension joint. The tension joint comprises tapered a section to resist the bending moment and shear imposed by the vessel's motion. The riser ten­ sion joint may be supported laterally by rollers below the tension ring. The rollers react on the tapered section when the riser strokes up and down. The tapered section may be engineered to maximize the use of the tension joint, and to reduce bending moment and shear loads imposed on the tensioning system. In certain embodiments, there may be a small gap between the rollers and the tapered section. In certain other embodiments, the rollers may be spring-loaded to increase the stability of surface equipment on the upper terminus of the riser. FIG. 213 WO 2014/008367 A3 III lillll IIII III III Hill III III III Hill Hill II 111 111 1 mill llll 111 llll 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(H)) — as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3)) — before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h)) (88) Date of publication of the international search report: 13 March 2014