Patent SG-11201810097T-A (SG)
Title: Thread form for connector collar of offshore well riser pipe
Inventor: LYLE ROCKFORD
IPC: E21B17/046
Filed: 2017-05-30
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 111111111111101110111111111111111111111111111111111111111110111001111101111111111 Organization International Bureau (10) International Publication Number (43) International Publication Date ......0\"\" WO 2017/210167 Al 07 December 2017 (07.12.2017) WI P0 I PC T (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every E21B 17/042 (2006.01) E21B 17/046 (2006.01) kind of national protection available): AE, AG, AL, AM, E21B 17/08 (2006.01) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (21) International Application Number: CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, PCT/US2017/034956 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, (22) International Filing Date: KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, 30 May 2017 (30.05.2017) 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, (25) Filing Language: English SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, (26) Publication Language: English TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (30) Priority Data: (84) Designated States (unless otherwise indicated, for every 15/170,499 01 June 2016 (01.06.2016) US kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, (71) Applicant: VETCO GRAY INC. [US/US]; 4424 West UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, Sam Houston Pkwy North, Suite 100, Houston, TX 77041 TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, (US). EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, (72) Inventors: LYLE, Rockford, Dee; 12221 North Houston MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, Rosslyn Rd., Houston, TX 77086 (US). PALLINI, Joseph, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, _ William; 12221 North Houston Rosslyn Rd., Houston, TX KM, ML, MR, NE, SN, TD, TG). 77086 (US). = (74) Agent: GNIBUS, Michael, M. et al.; General Electric = Company, Global Patent Operation, 901 Main Avenue, 3rd Floor, Norwalk, CT 06851 (US). = (54) Title: THREAD FORM FOR CONNECTOR COLLAR OF OFFSHORE WELL RISER PIPE = = = 15 = = 33 = = = 64 = = 49 1 0 p e A rS opr 241 , 4 1 A , 'di (57) : A pipe connection includes a pin having circumferentially extending external grooves. A box has an annular base with deflectable fmgers extending upward .,\" from the base. Each of the fingers has circumferentially extending internal grooves on an inner side and an external thread on an outer side. A collar has an internal thread on 65 an inner side. A radial dimension from the axis to the internal thread crest decreases 19 61 from turn to turn of the internal thread in a downward direction. The box and the pin ---- 5 9 are movable from a stab-in position to a locked position in response to rotation of the 63 3.5 collar. In the locked position, the external thread crests are in engagement with the internal thread crests, and the internal grooves are in full engagement with the external grooves. = = — — 37-4 Il 2 IN 27 V; 1 11 ei IN 1-1 0 ei 1 0...d A , k l4N io ft. ' 6 1Er 4 Z. 'I N I ., 1 6, 410 t r 4 ' s i , 6 43 :1T 23 27 67 47 57 58 F I G. 1 C [Continued on next page] WO 2017/210167 Al MIDEDIMOMMIDIRMEM001101011EHIMEINEVOIMIE 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 earlier application (Rule 4.17(iii)) priority of the Published: — with international search report (Art. 21(3))