Patent SG-11201901856R-A (SG)
Title: Methods for cementing a well using a switchable crossover device
Inventor: GAO BO
IPC: E21B33/14
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) WIPO I PCT omit VIII °nolo III moo 01110111 OH oimIE (10) International Publication Number WO 2018/057011 Al (51) International Patent Classification: E21B 33/13 (2006.01) E21B 33/12 (2006.01) E21B 33/14 (2006.01) (21) International Application Number: PCT/US2016/053540 (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). Published: with international search report (Art. 21(3)) (54) Title: METHODS FOR CEMENTING A WELL USING A SWITCHABLE CROSSOVER DEVICE 110 302 312 ( I I // 322 304a 304 / / / z 304b 320 316 / / / / // 300 310 AIM= 308 0 • z/z/zrz/z/z/z/z/z/z/z/z/z/z/zzyz 314 306 318 FIG. 3 N (57) : Switchable cross-over systems, devices, and methods for cementing well walls are provided. A switchable cross-over O device includes a tool body, a flow sleeve, and a hydraulic sleeve. The tool body includes a main tool path separable into upper and 00 lower tool paths and an auxiliary chamber containing upper and lower annular ports. The flow sleeve is within the auxiliary chamber O main tool path and mechanically coupled to the flow sleeve. The hydraulic sleeve is movable into a conventional circulation position and movable into a reverse circulation position by a plug traveling through the main tool path. The hydraulic sleeve is located within the via pressure within the main tool path acting on the hydraulic sleeve. C