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1. (WO2019046198) FRICTION REDUCER FOR HYDRAULIC FRACTURING
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Pub. No.: WO/2019/046198 International Application No.: PCT/US2018/048160
Publication Date: 07.03.2019 International Filing Date: 27.08.2018
IPC:
C09K 8/035 (2006.01) ,C09K 8/68 (2006.01) ,C10M 107/40 (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
02
Well-drilling compositions
03
Specific additives for general use in well-drilling compositions
035
Organic additives
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
60
Compositions for stimulating production by acting on the underground formation
62
Compositions for forming crevices or fractures
66
Compositions based on water or polar solvents
68
containing organic compounds
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
M
LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
107
Lubricating compositions characterised by the base-material being a macromolecular compound
40
containing nitrogen
Applicants:
STEPAN COMPANY [US/US]; 22 W. Frontage Road Northfield, IL 60093, US
Inventors:
SEYMOUR-LOYA, Brian; US
SANDERS, Aaron; US
FRIESEN, Dawn; US
DADO, Gregory, P.; US
Agent:
SCHUCHARDT, Jonathan, L.; US
Priority Data:
62/551,00128.08.2017US
Title (EN) FRICTION REDUCER FOR HYDRAULIC FRACTURING
(FR) RÉDUCTEURS DE FROTTEMENT POUR LA FRACTURATION HYDRAULIQUE
Abstract:
(EN) Compositions comprising an acrylamide polymer emulsion and a nonionic surfactant suitable for use as friction reducers for hydraulic fracturing are disclosed. The nonionic surfactants include aralkylated phenol ethoxylates, amine ethoxylates, amidoamine ethoxylates, linear or branched alcohol EO/PO alkoxylates, ethoxylated alcohols, alkylphenol ethoxylates, and EO-capped poly(oxypropylene) block copolymers. Improved hydraulic fracturing processes in which an acrylamide polymer emulsion is used as a friction reducer are also described. In these processes, the surfactant is included in the composition with the acrylamide polymer friction reducer, or it is introduced separately into the process. The performance of low-cost polyacrylamide friction reducers can be boosted with a small proportion of certain readily available nonionic surfactants. The inventive compositions are effective in high-salinity environments, and their performance can sometimes exceed that of more-expensive salt-tolerant friction reducers, thereby reducing fresh water demand and enabling greater utilization of produced water.
(FR) L'invention concerne des compositions comprenant une émulsion de polymère d'acrylamide et un tensioactif non ionique appropriées pour une utilisation en tant que réducteurs de frottement pour la fracturation hydraulique. Les tensioactifs non ioniques comprennent des éthoxylates de phénol aralkylés, des éthoxylates d'amine, des éthoxylates d'amidoamine, des alcoxylates OE/OP d'alcool linéaire ou ramifié, des alcools éthoxylés, des éthoxylates d'alkylphénol et des copolymères séquencés de polyoxypropylène terminés par OE. L'invention concerne également des procédés améliorés de fracturation hydraulique, dans lesquels une émulsion de polymère d'acrylamide est utilisée en tant que réducteur de frottement. Dans ces procédés, le tensioactif est inclus dans la composition avec le réducteur de frottement à base de polymère d'acrylamide ou il est introduit séparément dans le procédé. La performance de réducteurs de frottement à base de polyacrylamide à faible coût peut être augmentée par une faible proportion de certains tensioactifs non ioniques facilement disponibles. Les compositions de l'invention sont efficaces dans des environnements à salinité élevée et leurs performances peuvent parfois dépasser celles de réducteurs de frottement tolérants au sel plus coûteux, réduisant ainsi la demande en eau douce et permettant une utilisation plus importante d'eau produite.
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)