Patent SG-11201805818T-A (SG)
Title: Subsea casing tieback
Inventor: STEWART CHRISTOPHER SCOTT
IPC: E21B33/064
Filed: 2017-01-05
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 11111111011110111010101111101011111011101110101111110111011101111101111011111 International Bureau ... ..... ..Yi j ..... ....1 (10) International Publication Number (43) International Publication Date WO 2017/120338 Al 13 July 2017 (13.07.2017) WI P0 I P CT (51) International Patent Classification: DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, E21B 33/035 (2006.01) E21B 33/064 (2006.01) HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, E21B 33/038 (2006.01) KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, (21) International Application Number: NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, PCT/US2017/012337 RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, (22) International Filing Date: TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, 5 January 2017 (05.01.2017) ZA, ZM, ZW. (25) Filing Language: English (8 4 ) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (26) Publication Language: English GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, (30) Priority Data: TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, 62/276,065 7 January 2016 (07.01.2016) US TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, 15/070,863 15 March 2016 (15.03.2016) US 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, (71) Applicant: ENSCO INTERNATIONAL INCORPOR- SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, ATED [US/US]; 5847 San Felipe, Suite 3300, Houston, GW, KM, ML, MR, NE, SN, TD, TG). Texas 77057 (US). Declarations under Rule 4.17: (72) Inventor: STEWART, Christopher Scott; 5847 San Fe- - as to applicant's entitlement to apply for and be granted a lipe, Suite 3300, Houston, Texas 77057 (US). patent (Rule 4.17(u)) (74) Agents: DOOLEY, Matthew C. al.; P.O. Box 692289, et — as to the applicant's entitlement to claim the priority of the Houston, Texas 77269 (US). = earlier application (Rule 4.17(iii)) (81) Designated States (unless otherwise indicated, for every Published: _ kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, — with international search report (Art. 21(3)) = BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, (54) Title: SUBSEA CASING _= — TIEBACK (57) : Techniques and systems to couple a high pressure casing string to a blowout preventer or a subsea shut-in device. A device includes a locking mechanism configured to interface with a terminal end of a casing string of an offshore platform to couple the device to the terminal end of the _ \ casing string. The device also includes a sealing mechanism configured to fluidly seal an area around the terminal end of the casing string, wherein the = = 4 locking mechanism and the sealing mechanism are disposed at separate posi- - tions along a vertical orientation of the device. .. = 'N ;[ A . — A N 1 Il an co 1 1 N k N M M © ei 11 FIG. IN 11 © ei 90 96 3 O