Patent SG-11201811153R-A (SG)
Title: Switchable crossover tool with hydraulic transmission
Inventor: GAO BO
IPC: E21B33/13
Filed: 2016-09-23
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 29 March 2018 (29.03.2018) WI P0 I PC T omit VIII °nolo III moo ENE oloilowom oimIE (10) International Publication Number WO 2018/057010 Al 308 300 310 (51) International Patent Classification: E21B 33/13 (2006.01) E21B 33/12 (2006.01) E21B 33/14 (2006.01) (21) International Application Number: PCT/US2016/053538 (22) International Filing Date: 23 September 2016 (23.09.2016) (25) Filing Language: English (26) Publication Language: English (71) Applicant: HALLIBURTON ENERGY SERVICES, INC. [US/US]; 3000 North Sam Houston Parkway East, Houston, Texas 77032-3219 (US). (72) Inventors: GAO, Bo; 19118 Lost Mine Trl, Spring, Texas 77388 (US). HELMS, Lonnie Carl; 17031 Stones River Lane, Humble, Texas 77346 (US). GADRE, Aniruddha; 42 Lindenberry Circle, The Woodlands, Texas 77389 (US). HU, Yuzhu; 27363 Pendleton Trace, Spring, Texas 77386 (US). MAKOWIECKI, Gary; 1631 Sterling Village Dr., Montgomery, Texas 77386 (US). (74) Agent: CHERRY, John-Paul F. et al.; 1200 Smith Street, 14th Floor, Houston, Texas 77002 (US). (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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, 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, SA, 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. (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). = (54) Title: SWITCHABLE CROSSOVER TOOL WITH HYDRAULIC TRANSMISSION 110 312 304a 304 304b 302 320a 320 320c 314 320b \\\\111111 11\\1'\\\\\ 22 306 318 FIG. 3 (57) : Switchable cross-over systems, devices, and methods for cementing well walls are provided. A switchable cross-over O device includes a tool body and a flow sleeve. The tool body includes a main tool path separable into uphole and downhole tool paths O and an auxiliary chamber containing uphole and downhole annular ports. The flow sleeve is within the auxiliary chamber and movable N between conventional and reverse circulation positions. In the conventional circulation position, the uphole and downhole tool paths O cc uphole tool path and the downhole annular port are in fluid communication via the first auxiliary flow path, and the downhole tool path are in fluid communication and the uphole annular port is in fluid communication with the downhole annular port through the auxiliary chamber. In the reverse circulation position, the flow sleeve forms first and second auxiliary flow paths in the auxiliary chamber, the is in fluid communication with the uphole annular port. O O [Continued on next page] WO 2018/057010 Al MIDEDIMOMMIDEFIERIMEHIROMIONVOIS Published: — with international search report (Art. 21(3))