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1. (WO2017190920) MICROPARTICLES AND COMPOSITION
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Pub. No.: WO/2017/190920 International Application No.: PCT/EP2017/058626
Publication Date: 09.11.2017 International Filing Date: 11.04.2017
IPC:
C09K 8/516 (2006.01) ,C08F 2/16 (2006.01) ,C09K 8/588 (2006.01) ,C09K 8/594 (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
50
Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
516
characterised by their form or by the form of their components, e.g. encapsulated material
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2
Processes of polymerisation
12
Polymerisation in non-solvents
16
Aqueous medium
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
588
characterised by the use of specific polymers
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
594
Compositions used in combination with injected gas
Applicants: BP EXPLORATION OPERATING COMPANY LIMITED[GB/GB]; Chertsey Road Sunbury on Thames Middlesex TW16 7BP, GB
Inventors: BENNISON, Michael John; GB
CHAPELL, David; GB
COOPER, Andrew; GB
FRAMPTON, Harry; GB
SATHERLEY, John; GB
VIJAYARAGHAVAN, Meera; GB
Agent: COLLINS, Frances Mary; BP INTERNATIONAL LIMITED Global Patents & Technology Law Chertsey Road Sunbury on Thames Middlesex TW16 7LN, GB
Priority Data:
1607910.506.05.2016GB
Title (EN) MICROPARTICLES AND COMPOSITION
(FR) MICROPARTICULES ET COMPOSITION
Abstract:
(EN) The present invention provides microparticles having an average particle diameter in the range 0.05 to 10 microns and comprising a polymeric network of cross-linked co- polymers, which co-polymers comprise: a) a polymer backbone including structural units derived from a monomer having a CO2-philic functional group, one or more cross-linking structural units derived from a hydrolytically labile cross-linking monomer and one or more cross-linking structural units derived from a non-labile cross-linking monomer; and b) one or more oligomer chains including structural units derived from a monomer having a CO2-philic functional group, which oligomer chains are pendant from the polymer backbone and/or are grafted onto an end group of the polymer backbone. Also provided is a composition comprising said microparticles dispersed in a continuous phase comprising dense carbon dioxide. Such a composition may be injected into a subterranean oil-bearing formation where the microparticles are modified under the conditions of the formation so as to improve oil recovery from the formation..
(FR) La présente invention concerne des microparticules ayant un diamètre moyen de particule dans la plage de 0,05 à 10 micromètres et comprenant un réseau polymère de copolymères réticulés, lesquels copolymères comprennent : a) un squelette polymère comprenant des motifs de structure dérivés d’un monomère ayant un groupe fonctionnel CO2-phile, un ou plusieurs motifs de structure de réticulation dérivés d’un monomère de réticulation labile par voie hydrolytique et un ou plusieurs motifs de structure de réticulation dérivés d’un monomère de réticulation non labile ; et b) une ou plusieurs chaînes d’oligomère comprenant des motifs de structure dérivés d’un monomère ayant un groupe fonctionnel CO2-phile, lesquelles chaînes d’oligomère pendent du squelette polymère et/ou sont greffées sur un groupe terminal du squelette polymère. L’invention concerne également une composition comprenant lesdites microparticules dispersées dans une phase continue comprenant du dioxyde de carbone dense. Une telle composition peut être injectée dans une formation pétrolifère souterraine, les microparticules étant modifiées selon les conditions de la formation de manière à améliorer la récupération de pétrole à partir de la formation.
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, 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)