Patent SG-11201804923U-A (SG)
Title: Apparatus and method for utilizing reflected waves in a fluid to induce vibrations downhole
Inventor: HERED WILLIAM A
IPC: E21B31/00
Filed: 2016-10-18
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 11111111011110111010101111101011111111111111101111101110101101111101111011111 International Bureau ... .... ..Yjd (10) International Publication Number (43) International Publication Date ..... ....r ....1 WO 2017/087110 Al 26 May 2017(26.05.2017) WIPO I PCT (51) International Patent Classification: BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, E21B 31/00 (2006.01) E21B 28/00 (2006.01) DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, E21B 34/06 (2006.01) 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, (21) International Application Number: MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, PCT/US2016/057461 OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (22) International Filing Date: SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, 18 October 2016 (18.10.2016) TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (25) Filing Language: English (84) Designated States (unless otherwise indicated, for every (26) Publication Language: English kind of regional protection available): ARIPO (BW, GH, (30) Priority Data: GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, 14/947,078 20 November 2015 (20.11.2015) US TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, (71) Applicant: BAKER HUGHES INCORPORATED DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, [US/US]; P.O. Box 4740, Houston, Texas 77210-4740 LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, (US). SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, (72) Inventor: HERED, William A.; 2929 Allen Parkway, GW, KM, ML, MR, NE, SN, TD, TG). Suite 2100, Houston, TX 77019-2118 (US). Published: (81) Designated States (unless otherwise indicated, for every — with international search report (Art. 21(3)) — kind of national protection available): AE, AG, AL, AM, = AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, = (54) Title: APPARATUS AND METHOD FOR UTILIZING REFLECTED WAVES IN A FLUID TO INDUCE VIBRATIONS = DOWNHOLE = (57) : In one aspect, an apparatus for inducing vibrations in an ob - — 106 c -- PO _ ject in a wellbore is disclosed that in one embodiment includes a tubular con- _ cra 190 veyable in the wellbore and has at its bottom end an engagement tool that is =OITA = EU ,- configured to engage with or latch onto the object. A first flow control 104 /NV \"Sy , = e . = = - — = = = = 1-1 © 11 11 Ir ... ' GC ...... IN 11 © ei xil io , 1 FIG. 1 102 device, such as a cycling valve, in the tubular cycles (closes and opens) at a selected frequency or rate and generates at each closing a first upward pres - sure pulse in a fluid flowing through the tubular and a downward pressure >,.._ pulse in the fluid, which induces a first force in the engagement tool and thus in the fish engaged with the engagement tool. A second flow control device, above the first flow control device in the tubular, closes in response to the first upward pressure pulse during each cycle and generates a second upward pressure pulse in the fluid flowing through the tubular and a second down- ward pressure in the fluid and a corresponding second force in the object. The selected frequency may be set to match a resonant frequency of the tubu- lar. The first flow control device may be cycled to close on or before arrival of the second downward pulse at the first flow control device to generate a resonance in the tubular. O