Patent SG-11201909744T-A (SG)
Title: Hydraulic mechanical diverter
Inventor: LIM JONATHAN QIU QIANG
IPC: E21B34/10
Filed: 2017-09-29
Abstract: WO /0669 47 Al (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 04 April 2019 (04.04.2019) WIPO I PCT 11111111111111011111111111111110111110101111111111111111111111111111111111111011110111111 (10) International Publication Number WO 2019/066947 Al (51) International Patent Classification: E21B 43/12 (2006.01) E21B 34/10 (2006.01) (21) International Application Number: PCT/US2017/054537 (22) International Filing Date: 29 September 2017 (29.09.2017) (25) Filing Language: English (26) Publication Language: English (71) Applicant: HALLIBURTON ENERGY SERVICES, INC. [US/US]; 3000 N. Sam Houston Parkway E., Hous- ton, Texas 77032 (US). (72) Inventors: LIM, Jonathan Qiu Qiang; 11, Tuas South Avenue 12, Singapore 637131 (SG). DAVIES, Katherine Ann; 132 Kinloch Street, Carnoustie DD7 7HD (GB). GU- NASEKARAN, Mohan; 11, Tuas South Avenue 12, Singa- pore 637131 (SG). MEHTA, Krunal Kanubhai; 11, Tuas South Avenue 12, Singapore 637131 (SG). (74) Agent: NGUYEN, Daniel G. et al.; Locke Lord LLP, 600 Travis, Suite 2800, Houston, Texas 77002-3095 (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, F1, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, 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, 1E, 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). Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(ii)) of inventorship (Rule 4.17(iv)) Published: with international search report (Art. 21(3)) (54) Title: HYDRAULIC MECHANICAL DIVERTER (57) : Hydraulic diverter is disclosed that makes it possible to use a single hydraulic control line to operate a flow control device. The hydraulic diverter diverts fluid from the hydraulic control line alternately first to one fluid compartment, then to the other fluid com- partment of an actuator. In some implementations, the hydraulic diverter employs a piston that rotates circumferentially as it is driven axially to provide the alternating connection to 102 -- -104 the actuator fluid compartments. The piston has a flow path through it that deviates away from the piston's central axis so fluid exits at or near one side of the piston instead of the 118 center. As the piston rotates, the deviated flow pathbecomes aligned with, and thus connects 105 hydraulic fluid to, one fluid compartment of the actuator. As the piston continues to rotate, the deviated flow path becomes aligned with, and thus connects hydraulic fluid to, the other 106 fluid compartment. FIG. 1