Patent CA-3100856-C (CA)
Title: System, method and apparatus for reduced water usage for fracturing hydrocarbon wells with three-dimensional imaging of the formation from a single borehole
Inventor: DAVIES TIM J
IPC: E21B47/10
Filed: 2019-06-07
Granted: 2021-05-04
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY  (PCT) (19) World Intellectual Property Organization International Bureau       (10) International Publication Number (43) International Publication Date                   WO 2019/232647 Al 12 December 2019 (12.12.2019) WIPO I PCT (51) International Patent Classification:                                           (72) Inventor: DAVIES, Tim J.; 1315 - 116 Avenue SW, Ca1-E21B 43/26 (2006.01)                   E21B 47/10 (2012.01)    galy, Alberta T2W 2G4 (CA). (21) International Application Number:                                              (74) Agent: COLES, Jeffrey E. et al.; c/o Gowling WLG (Cana-PCT/CA2019/050808                        da) LLP, Suite 1600, 421 - 7 Avenue SW, Calgaiy, Alberta T2P 4K9 (CA). (22) International Filing Date: 0'7 June 2019 (07.06.2019) (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (25) Filing Language:                     English AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (26) Publication Language:                English 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, (30) Priority Data: HR, HU, ED, EL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, 62/682,697         08 June 2018 (08.06.2018)    US KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, (71) Applicant: CENOVUS ENERGY INC. [CA/CA]; 225 -    MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 6th Avenue SW, P.O. Box 766, Calgary, Alberta T2P 1N2    OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (CA).                                                                               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. (54) Title: SYSTEM, METHOD AND APPARATUS FOR REDUCED WATER USAGE FOR  FRACTURING HYDROCARBON  = WELLS WITH THREE-DIMENSIONAL IMAGING OF THE FORMATION FROM A SINGLE BOREHOLE Natural fracture clusters near                    Natural fracture clusters near o or at well bore                                       r at well bore Well bore [ -[ =    [.= =                                                  ,    õ . = -                        "       _ -    =                ;1=.:!==    = .. -= , . 520 meters depth           ,/                                 420 meters depth /                                         Natural fracture clusters near    = /                                      or at well bore .4. FIG .24 Nre (57) Abstract: Provided are methods of reducing water consumption in a fracturing operation. The methods can include imaging a r=11 geologic formation surrounding a borehole using a downhole tool within the borehole. The method can further include identifying, fP) within the image, fractures conducive to hydrocarbon production;  correlating the fractures conducive to hydrocarbon production to fracture zones; and selecting locations of the fracture zones to be hydraulically fractured, wherein the selected locations collectively represent less than the axial length of the borehole, thereby reducing water consumption compared to hydraulic fracturing along an entirety of the axial length. [Continued on next page]     WO 2019/232647 Al HIM l0llll l llll OIH 1111111111 ll l O ll 11111 0ll (84) Designated States (unless otherwise indicated, for every kind of regional protection available): AREPO (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)) ¨    in black and white; the international application as filed contained color or greyscale and is available for download from PATENTSCOPE