SG11201805425PA - Blowout preventer with interlocking ram assembly and method of using same - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 11111111011110111010101111101011111011101110111111111101111011111111101111011111 International Bureau .. .... ..Yejd (10) International Publication Number ..... .....!;,,, (43) International Publication Date WO 2017/119894 Al 13 July 2017 (13.07.2017) WI P0 I P CT (51) International Patent Classification: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, E21B 33/06 (2006.01) BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FL GB, GD, GE, GH, GM, GT, (21) International Application Number: HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, PCT/US2016/012536 KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, (22) International Filing Date: MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, 7 January 2016 (07.01.2016) 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, (25) Filing Language: English TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (26) Publication Language: English (84) Designated States (unless otherwise indicated, for every (71) Applicant: NATIONAL OILWELL VARCO, L.P. kind of regional protection available): ARIPO (BW, GH, [US/US]; 7909 Parkwood Circle Drive, Houston, TX GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, 77036 (US). TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, (72) Inventors: DOUTY, James, A.; 258 Bristol Bend Circle, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, The Woodlands, TX 7382 (US). MELANCON, Jeffrey, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, T.; 14333 W. Ravine Run, Willis, TX 77318 (US). SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, (74) Agent: MAAG, Gregory L.; Conley Rose, P.C., 1001 GW, KM, ML, MR, NE, SN, TD, TG). McKinney, Suite 1800, Houston, Texas 77002 (US). Published: (81) Designated States (unless otherwise indicated, for every — with international search report (Art. 21(3)) kind AE, AG, AL, AM, of national protection available): WITH INTERLOCKING RAM ASSEMBLY AND METHOD OF USING SAME (54) Title: BLOWOUT PREVENTER — - , 122 \ / Il 7r C:r GC Figure 5A P S I P S I Ir---- (57) : A ram assembly is disclosed. The ram assembly includes a ram wedge, a blade, and a ram seat. The ram wedge has a 1-1 C tubular cavity therethrough for receiving the tubular. The ram wedge is slidably positionable in the ram channel between a retracted N and an extended position, and has rails extending therefrom. The blade is positionable about the tubular cavity, the blade carried by O the ram wedge to cuttingly engage the tubular. The ram seat is positionable in the housing about the passage, and has a hole for re - ,-t ceiving the tubular therethrough. The ram seat also has an outer surface interlockingly engageable with the rails as the ram wedge moves relative thereto whereby a gap is reduced therebetween.