Patent SG-11201901847R-A (SG)
Title: Switchable crossover tool with rotatable chamber
Inventor: GAO BO
IPC: E21B34/06
Filed: 2016-09-23
Abstract: 302 134 ///////////////////i 408 410 304 136 / 312 (12) 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 olimion °nolo olmoomonlionoluom oimIE (10) International Publication Number WO 2018/057009 Al (51) International Patent Classification: E21B 33/13 (2006.01) E21B 34/06 (2006.01) E21B 33/14 (2006.01) (21) International Application Number: PCT/US2016/053519 (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: SWITCHABLE CROSSOVER TOOL WITH ROTATABLE CHAMBER //////1////////// ..,1 11\\ \ y r 7 //////////7% / / / /% 1 / 1 /// FIG. 4 306 404 404 O (57) : Switchable crossover tools can include a tool body and a rotatable chamber. The tool body includes a main tool path O N chamber is located and rotatable within the auxiliary chamber and forming first and second auxiliary flow paths through the auxiliary separable into uphole and downhole tool paths and an auxiliary chamber containing uphole and downhole annular ports. The rotatable chamber. The rotatable chamber is positionable between a conventional circulation mode and a reverse circulation mode. In the conven- O tional circulation mode, the uphole and downhole tool paths are in fluid communication and the uphole and downhole annular ports are cc in fluid communication through the auxiliary chamber. In the reverse circulation mode, the uphole tool path is in fluid communication O with the downhole annular port via the first auxiliary flow path, and the downhole tool path is in fluid communication with the uphole annular port via the second auxiliary flow path. O