Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2018158086) OIL RECOVERY METHOD
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/158086 International Application No.: PCT/EP2018/053804
Publication Date: 07.09.2018 International Filing Date: 15.02.2018
IPC:
C09K 8/58 (2006.01) ,E21B 43/00 (2006.01)
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
K
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8
Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
58
Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
43
Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
Applicants:
BP EXPLORATION OPERATING COMPANY LIMITED [GB/GB]; Chertsey Road Sunbury on Thames Middlesex TW16 7BP, GB
Inventors:
COUVES, John, William; GB
KRAWIEC, Piotr; GB
RASHID, Bilal; GB
TOTTON, Timothy, Stephen; GB
Agent:
FORD, LOUISE DIANE ET AL; BP INTERNATIONAL LIMITED Global Patents & Technology Law, Chertsey Road Sunbury on Thames Middlesex TW16 7LN, GB
Priority Data:
1703199.828.02.2017GB
Title (EN) OIL RECOVERY METHOD
(FR) PROCÉDÉ DE RÉCUPÉRATION DE PÉTROLE
Abstract:
(EN) A method for recovering crude oil from a reservoir comprising injecting into an oil-bearing reservoir alternating slugs of an aqueous displacement fluid comprising an aqueous solution of zinc chloride or zinc bromide and of an aqueous spacer fluid characterized in that: a) the pH of each of the slugs of aqueous displacement fluid is less than 5.5 and the pH of each of the slugs of aqueous spacer fluid is less than 8.5; b) the number of injected slugs of aqueous displacement fluid, n, is in the range of 15 to 1000 per swept pore volume, PVR; c) the injected pore volume of each individual slug, PVSlug-i, of aqueous displacement fluid is in the range of 10-12 to 10-2 of the PVR; d) the total injected pore volume of the slugs of aqueous displacement fluid is in the range of 10-8 to 10-1 of the PVR; e) the injected pore volume of each individual slug of aqueous spacer fluid, PVSpacer-i, is in the range of 0.0001 to 0.1000 of the PVR; f) the total injected pore volume of the slugs of aqueous spacer fluid is in the range of 0.9000000 to 0.9999999 of the PVR; g) the reservoir rock has a dispersivity, α, in the range of 1 to 30; and 20 h) the quantity of zinc delivered to the reservoir by the plurality of slugs of aqueous displacement fluid is equal to or greater than a predetermined minimum quantity (MQ).
(FR) L'invention concerne un procédé de récupération de pétrole brut à partir d'un réservoir comprenant l'injection, dans un réservoir contenant du pétrole, des bouchons alternés d'un fluide de déplacement aqueux comprenant une solution aqueuse de chlorure de zinc ou de bromure de zinc et d'un fluide d'espacement aqueux. Selon l'invention : a) le pH de chacun des bouchons de fluide de déplacement aqueux est inférieur à 5,5 et le pH de chacun des bouchons de fluide d'espacement aqueux est inférieur à 8,5; b) le nombre de bouchons injectés de fluide de déplacement aqueux, n, se situe dans la plage de 15 à 1000 par volume de pore balayé, PVR (pore voidage replacement); c) le volume de pore injecté de chaque bouchon individuel, PVbouchon-i, de fluide de déplacement aqueux se situe dans la plage de 10-12 à 10-2 du PVR; d) le volume de pores injecté total des bouchons de fluide de déplacement aqueux se situe dans la plage de 10-8 à 10-1 du PVR; e) le volume de pore injecté de chaque bouchon individuel de fluide d'espacement aqueux, PVespaceur-i, se situe dans la plage de 0,0001 à 0,1000 du PVR; f) le volume total de pores injectés des bouchons de fluide d'espacement aqueux se situe dans la plage de 0,9000000 à 0,9999999 du PVR; g) la roche réservoir a une dispersivité, α, dans la plage de 1 à 30; et h) la quantité de zinc fournie au réservoir par la pluralité de bouchons de fluide de déplacement aqueux est égale ou supérieure à une quantité minimale prédéterminée (MQ).
front page image
Designated States: 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, 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)